Metadata: Identification_Information: Citation: Citation_Information: Originator: Samantha C. McGill Originator: Jessica R. Lacy Originator: Angela C. Tan Publication_Date: 20250820 Title: Properties of sediment collected throughout the strategic placement of dredge material in south San Francisco Bay, California, 2023-2025 Geospatial_Data_Presentation_Form: Comma-separated values Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P14D723N Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066-P14D723N Larger_Work_Citation: Citation_Information: Originator: Samantha C. McGill Originator: Jessica R. Lacy Originator: Andrew W. Stevens Originator: Rachel M. Allen Originator: Peter Dartnell Originator: Joanne C. Thede Originator: Angela C. Tan Originator: Gerald A. Hatcher Publication_Date: 2025 Title: Oceanographic and hydrographic monitoring data of a shallow-water placement of dredged sediment in south San Francisco Bay, California, 2023-2025 Series_Information: Series_Name: data release Issue_Identification: doi:10.5066-P14D723N Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: McGill, S.C., Lacy, J.R., Stevens, A.W., Allen, R.M., Dartnell, P., Thede, J.C., Tan, A.C., and Hatcher, G.A., 2025, Hydrodynamic, bathymetric, and sediment transport data spanning dredge material placement in south San Francisco Bay, California, 2023-2025: U.S. Geological Survey data release, https://doi.org/10.5066/P14D723N. Online_Linkage: https://doi.org/10.5066-P14D723N Description: Abstract: Bed sediment samples were collected from several sites within south San Francisco Bay, California, USA. Stations sampled were located within or adjacent to an area defined for strategic sediment placement. These stations were more specifically located either near instrumented stations where time-series data were collected, on/near a mound of placed sediment, or in a channel adjacent to an instrumented station. Time-series data are provided on the home page for this data release. Sediment samples were collected by ship-side push core sampling or subsampling a Gomex box corer with push cores. Push cores, which ranged in total length from 6 to 16 centimeters (cm), were sectioned by depth. The uppermost six sections from each core were 1 cm thick, and the following sections were 2 cm thick. Samples were analyzed for sediment properties including bulk density, particle size distribution, and percent carbon. Purpose: The sediment properties measured in this study provide some insight on how the sediment bed where dredged material was placed changed over time. In addition, the sediment properties measured during this study such as grain-size and bulk density are the best predictors of sediment erodibility, a parameter required for numerical models of sediment transport in muddy systems. These data were collected as part of a collaborative study with USGS Western Ecological Research Center monitoring the pilot project conducted by U.S. Army Corps of Engineers San Francisco District. The study investigated the transport, impacts, and evolution of strategically placed dredged material in a shallow subtidal region adjacent to a marsh. Goals of this study were to assess the potential use of shallow-water placement for marsh management and restoration while gaining insight into local sediment transport adjacent to marshes in the shallows of south San Francisco Bay. These data are intended for researchers, students, policy makers, and the general public. Supplemental_Information: Information about the data collection field activities can be found at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2023-655-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20230810 Ending_Date: 20250210 Currentness_Reference: ground condition at time samples were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.21167 East_Bounding_Coordinate: -122.14669 North_Bounding_Coordinate: 37.60643 South_Bounding_Coordinate: 37.57107 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:906157c2-b9bb-4bf4-990c-c5a7ea8c8f87 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Substrate Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sediment transport Theme_Keyword: grain-size analysis Theme_Keyword: push coring Theme_Keyword: grab sampling Theme_Keyword: sea-floor characteristics Theme_Keyword: unconsolidated deposits Theme_Keyword: sediment transport Theme_Keyword: bulk density Theme_Keyword: carbon Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: Sediment Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: USGS Theme_Keyword: U.S. Geological Survey Theme_Keyword: PCMSC Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: CMHRP Theme_Keyword: Coastal and Marine Hazards and Resources Program Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: San Francisco Bay Place_Keyword: State of California Place: Place_Keyword_Thesaurus: none Place_Keyword: South San Francisco Bay Place_Keyword: Eden Landing Ecological Reserve Access_Constraints: No access constraints Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey (USGS) as the originator of the dataset and in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Cross_Reference: Citation_Information: Originator: Beckman-Coulter Publication_Date: 2011 Title: Instructions for Use: LS 13 320 Laser Diffraction Particle Size Analyzer Other_Citation_Details: Beckman-Coulter, 2011, Instructions for Use: LS 13 320 Laser Diffraction Particle Size Analyzer: Brea, Calif., Beckman-Coulter, 246 p. Online_Linkage: https://www.beckmancoulter.com/wsrportal/techdocs?docname=b05577ab.pdf Cross_Reference: Citation_Information: Originator: Robert E. Carver Publication_Date: 1971 Title: Procedures in Sedimentary Petrology Other_Citation_Details: Carver, R.E., 1971, Procedures in Sedimentary Petrology: Wiley Interscience, New York: 49-94. Online_Linkage: https://tamug-ir.tdl.org/handle/1969.3/21450 Cross_Reference: Citation_Information: Originator: E.E. Collias Originator: M.R. Rona Originator: D.A. McManus Originator: J.S. Creager Publication_Date: 1963 Title: Machine processing of geological data Other_Citation_Details: Collias, E.E., Rona, M.R., McManus, D.A., and Creager, J.S., 1963, Machine processing of geological data: Department of Oceanography, University of Washington, Technical Report No. 87, 119 p. Online_Linkage: https://apps.dtic.mil/sti/pdfs/AD0423746.pdf Cross_Reference: Citation_Information: Originator: Edythe E. Engleman Originator: Larry L. Jackson Originator: Daniel R. Norton Publication_Date: 1985 Title: Determination of carbonate carbon in geological materials by coulometric titration Other_Citation_Details: Engleman, E.E., Jackson, L.L., and Norton, D.R., 1985, Determination of carbonate carbon in geological materials by coulometric titration: Chemical Geology, v. 53, p. 125-128. Online_Linkage: https://doi.org/10.1016/0009-2541(85)90025-7 Cross_Reference: Citation_Information: Originator: Robert Louis Folk Publication_Date: 1974 Title: Petrology of Sedimentary Rocks Other_Citation_Details: Folk, R.L., 1974, Petrology of Sedimentary Rocks: Hemphill Publishing Co., Austin, TX, 182 p. Online_Linkage: https://tamug-ir.tdl.org/handle/1969.3/21435 Cross_Reference: Citation_Information: Originator: Robert Louis Folk Publication_Date: 1980 Title: Petrology of Sedimentary Rocks Other_Citation_Details: Folk, R.L., 1980, Petrology of Sedimentary Rocks: Hemphill Publishing Co., Austin, TX, 184 p. Online_Linkage: https://repositories.lib.utexas.edu/bitstream/handle/2152/22930/folkpetrology.pdf?sequence=3 Cross_Reference: Citation_Information: Originator: Robert Louis Folk Publication_Date: 1966 Title: A review of grain-size parameters Other_Citation_Details: Folk, R. L.,1966, A review of grain-size parameters: Sedimentology, v. 6, p. 73-93. Online_Linkage: https://doi.org/10.1111/j.1365-3091.1966.tb01572.x Cross_Reference: Citation_Information: Originator: Robert Louis Folk Originator: William C. Ward Publication_Date: 1957 Title: Brazos River bar; a study in the significance of grain size parameters Other_Citation_Details: Folk, R.L., and Ward, W.C., 1957, Brazos River bar; a study in the significance of grain size parameters: Journal of Sedimentary Research, v. 27, p. 3-26. Online_Linkage: https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D Cross_Reference: Citation_Information: Originator: Douglas Lamar Inman Publication_Date: 1952 Title: Measures for describing the size distribution of sediments Other_Citation_Details: Inman, D.L., 1952, Measures for describing the size distribution of sediments: Journal of Sedimentary Research, v. 22, p. 125-145. Online_Linkage: https://doi.org/10.1306/D42694DB-2B26-11D7-8648000102C1865D Cross_Reference: Citation_Information: Originator: J.M. Jaquet Originator: J.P. Vernet Publication_Date: 1976 Title: Moment and graphic size parameters in sediments of Lake Geneva (Switzerland) Other_Citation_Details: Jaquet J. M., and Vernet J.P., 1976, Moment and graphic size parameters in sediments of Lake Geneva (Switzerland): Journal of Sedimentary Petrology, v. 46, p. 305-312. Online_Linkage: https://doi.org/10.1306/212F6F46-2B24-11D7-8648000102C1865D Cross_Reference: Citation_Information: Originator: Penscil Inc. Publication_Date: 2015 Title: pcSDSZ: Sediment Size Analysis Software for Windows Operation Manual Version 2.00, prepared for USGS Coastal and Marine Geology Other_Citation_Details: Penscil Inc., 2015, pcSDSZ: Sediment Size Analysis Software for Windows Operation Manual Version 2.00, prepared for USGS Coastal and Marine Geology. Unpublished document. Cross_Reference: Citation_Information: Originator: J. Syvitski Publication_Date: 1991 Title: Principles, Methods, and Applications of Particle Size Analysis Other_Citation_Details: Syvitski, J., 1991, Principles, Methods, and Applications of Particle Size Analysis: Cambridge University Press, New York, USA, 292 p. Online_Linkage: https://doi.org/10.1017/CBO9780511626142 Cross_Reference: Citation_Information: Originator: Parker D. Trask Publication_Date: 1930 Title: Mechanical analyses of sediments by centrifuge Other_Citation_Details: Trask, P.D., 1930, Mechanical analyses of sediments by centrifuge: Economic Geology, v. 25, p. 581-599. Online_Linkage: https://doi.org/10.2113/gsecongeo.25.6.581 Cross_Reference: Citation_Information: Originator: Parker D. Trask Publication_Date: 1932 Title: Origin and environment of source sediments of petroleum Other_Citation_Details: Trask, P.D., 1932, Origin and environment of source sediments of petroleum: Gulf Publishing Company, Houston, Texas, 323 p. Online_Linkage: https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/abs/origin-and-environment-of-source-sediments-of-petroleum-by-d-trask-parker-assisted-by-harold-e-hammar-and-c-c-wu-gulf-publishing-co-houston-texas-323-pp-1932/E4212BACC9A798808CC166A1DE4CF691#article Cross_Reference: Citation_Information: Originator: UIC Inc. Publication_Date: 2022 Title: Operation Manual Model CM5017 CO2 Coulometer Other_Citation_Details: UIC Inc., Operation Manual Model CM5017 CO2 Coulometer, Joliet, IL, 2.0, p. 28-30. Cross_Reference: Citation_Information: Originator: UIC Inc. Publication_Date: 2022 Title: Operation Manual Model CM5200 Autosampler Furnace Other_Citation_Details: UIC Inc., Operation Manual Model CM5200 Autosampler Furnace, Joliet, IL, 2.4, 13 p. Cross_Reference: Citation_Information: Originator: UIC Inc. Publication_Date: 2022 Title: Operation Manual Model CM5230 Acidification Module Other_Citation_Details: UIC Inc., Operation Manual Model CM5230 Acidification Module, Joliet, IL, 2.1, p. 15-17. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: If present, large shells/clams/worms were physically removed from push core samples with minimal disturbance or loss of the sediment sample. Shell fragments greater than 1 millimeter(mm) visually identified, and separated from the sample using forceps, during the dry sieving process that is described in a process step below. For grain-size analyses, annual service tests and daily calibrations with reference standards ensure that the Beckman Coulter LS 13 320 operates within specifications. Each sample was analyzed three times by the UIC CM5017 coulometer and the data were averaged. In addition, a randomly selected lab procedural duplicate was run with each batch of samples to ensure consistency and that measured duplicate values were within 15 percent of the original values. Total carbon and total inorganic carbon values for each sample are the average of two measurements. Instruments used for carbon analyses: the UIC CM5017 coulometer, the CM5200 furnace, and the CM5230 acid digester were verified to be within specifications by running blanks and pure, reagent-grade calcium carbonate standard before and after every 10 samples. A single, lab procedural duplicate was run with each batch of 24 samples to ensure consistency, with measured duplicate values within 15 percent of the original values. Logical_Consistency_Report: Data values are within the expected values for bay sediments. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Push core samples were taken from a small vessel anchored at the sample location. Manufacturers stated accuracy from the least precise GPS equipment (small vessel GPS system) 3-5 meters (m). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Sample depth is referenced to the surface of the sample or core, with a precision of up to 0.25 cm. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Samantha C. McGill Originator: Rachel M. Allen Originator: Joanne C. Thede Originator: Andrew W. Stevens Originator: Peter Dartnell Originator: Jessica R. Lacy Publication_Date: 2025 Title: Oceanographic time-series monitoring data of a shallow-water placement of dredged sediment in South San Francisco Bay, California, 2023-2025 Geospatial_Data_Presentation_Form: NetCDF files Publication_Information: Publication_Place: online Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P14D723N Type_of_Source_Media: online database Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20230814 Ending_Date: 20250210 Source_Currentness_Reference: ground condition at time data were collected Source_Citation_Abbreviation: Time series data Source_Contribution: Approximate salinity values. Data are available in the Mooring (physical oceanography) Data section of this same data release Process_Step: Process_Description: SEDIMENT COLLECTION. Sediment samples were collected at several stations in south San Francisco Bay, from a small vessel, using a custom build hand-operated push-core device that consisted of the push core “tube” secured onto a pole mount with an internal valve, the device was carefully lowered vertically off the side of the ship by hand, when the operator finished pushing the core into the bed, paracord attached to a lever on the value was pulled to close it, “capturing” the sediment, the device was carefully brought on deck and the core was dismounted and capped, this was repeated 3 times per station to obtain replicates. The two stations that were in and adjacent to the channel used a Gomex box corer that was then subsampled with three push cores (38 mm in diameter) when a sufficient amount of sediment was recovered. For each push core, the six uppermost subsamples were collected at 1 cm vertical intervals. The rest of the core was sampled at 2 cm intervals, except for two samples (P3B2-6 and P3B2-7), that were accidentally sampled at 2 and 1 cm intervals respectively. A couple of cores have a -1 cm sample depth, which means there was a feature protruding from what we defined as the sample’s (sediment bed's) surface, for example a small cluster of shells packed with mud protruding from the surface of the sample. Sediment samples were carefully extracted from cores by sliding core on top of an extruder, which pushed the sediment in the core upward, allowing us to section precise sample depths starting with the surface sample. Subsamples were placed into pre-weighed Whirl-pak bags. Process_Date: 20250210 Process_Step: Process_Description: A total of 687 samples were analyzed for bulk density by the USGS Pacific Coastal and Marine Science Center sediment lab. Dry bulk density was calculated with the formula: dry bulk density = (1 - porosity)* sediment density, where porosity is calculated as P = (water mass/water density)/[(water mass/water density)+(corrected dry sediment mass/sediment density)], water density is 1 g/cm3 and sediment density is 2.65 g/cm3. Local salinity readings were used to correct for the mass of salt in the pore water that was left behind during the drying process (salt mass = water mass * (salinity/1000)). The salt mass gets subtracted from dry sediment mass, to obtain the corrected dry sediment. Approximate salinity values were obtained from nearby time-series station that were deployed as part of this project or from USGS station 11162765 when no time-series station were available. The time-series data are available on this data releases' landing page. Source_Used_Citation_Abbreviation: Time series data Process_Date: 20250226 Process_Step: Process_Description: GRAIN-SIZE ANALYSIS: A total of 438 samples (including occasional duplicates) were analyzed for grain-size. Grain-size analysis was conducted by the USGS Pacific Coastal and Marine Science Center (PCMSC) sediment lab using a Beckman Coulter LS 13 320 grain-size analyzer with an aqueous liquid module attachment. PCMSC procedures are modified from those described in Carver (1971) and Folk (1974, 1980). 5-50 grams of sediment was sub-sampled and at least 10 milliliters of 30 percent hydrogen peroxide was added and left for approximately 12 hours to remove organics. The samples were then heated to 250 degrees Celsius to remove excess hydrogen peroxide. Next, samples were placed in an ultrasonic bath to help disperse silt and clay (mud) from sand and larger-sized particles. Samples were then rinsed twice in deionized water with centrifugation to remove soluble ions. Subsequently, the samples were wet sieved with 1 millimeter and 0.063 millimeter sieves to segregate the combined gravel and coarse sand fraction (greater than 1 millimeter), sand (1 millimeter to 0.063 millimeter), and mud (less than 0.063 millimeter). Shells > 1 mm were visually identified and removed using forceps, during the sieving process, dried, and weighed. The coarse sand + gravel fractions were then dried, dry sieved at 1/4 phi intervals and weighed (Carver, 1971). The sand fraction was dried and weighed. The mud fraction was collected in a 1 liter graduated cylinder, 5 milliliters of at least 10 percent sodium hexametaphosphate (dispersant) was added, and deionized water was added to bring the total the volume to 1 liter. The mud + dispersant solution sat overnight to ensure complete dispersion and to observe if flocculation occurred. Subsequently, a 20 milliliter aliquot was extracted from the graduated cylinder and dried to obtain the mud fraction weight normalized to a 1-liter basis. The mud and sand fractions were analyzed separately via the Beckman Coulter LS 13 320 with the aqueous liquid module attachment. All size fraction data were compiled and converted by the PCMSC sediment lab pcSDSZ program (Penscil, 2015) to a grain-size distribution at 1/4 phi size intervals on a weight percent basis. pcSDSZ also calculated interpolated sizes and graphical statistics on a percent coarser basis (Folk and Ward, 1957; Folk, 1966; Folk, 1974, 1980; Inman, 1952; Trask, 1930, 1932) and moment measures (Collias and others, 1963; Jaquet and Vernet, 1976; Folk, 1980). Process_Date: 20250501 Process_Step: Process_Description: INTERPOLATED SIZES: Grain-sizes at select cumulative percentage values (D) were calculated by the PCMSC Sediment Lab software pcSDSZ version 1.71 on a percent coarser basis, which summed from coarse to fine bins. D values were interpolated between phi bins bracketing the specified D value. Grain-sizes were converted into units of millimeters (mm) using the formula mm=reciprocal of 2(exponent) phi or (phi=-log2(mm)). Interpolated grain-sizes at D50 are reported in phi and millimeter units. Process_Date: 20250501 Process_Step: Process_Description: CARBON ANALYSIS: A total of 202 (including occasional duplicates) samples were analyzed for percent carbon. Carbon analysis was performed by the PCMSC carbon lab employing a coulometric titration technique described in Engleman and others (1985) and UIC operating manuals for the UIC CM5200 autosampler furnace, the UIC CM5230 acidification module, and the UIC CM5017 coulometer. Total carbon (TC), total inorganic carbon (TIC), total organic carbon (TOC) and percent calcium carbonate (CaCO3) are reported as percent dry weight. Approximately 5 grams of sediment were dried in an 80 degrees Celsius oven. Samples were then pulverized, redried, and placed in a desiccator. For TC analysis, approximately 20 milligrams of the pulverized sample were weighed and wrapped in an aluminum capsule then combusted at 950 degrees Celsius in an UIC CM5200 autosampler furnace attached to an UIC CM5017 coulometer. The carbon dioxide (CO2) produced by combusting the sample was then converted to TC by the UIC CM5017 coulometer. For TIC, approximately 20 milligrams of sample were weighed and loaded into an UIC CM5230 acidification module attached to an UIC CM5017 coulometer. The samples were then digested in a perchloric acid solution, and the CO2 generated was measured and converted to TIC. Two analyses per sample were run and the results were averaged. TOC was calculated by subtracting TIC from TC. The TIC value was then multiplied by 8.333 (the molar stochiometric ratio of CaCO3 to C) to convert TIC to percent CaCO3. Process_Date: 20241008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Angela Tan Contact_Organization: USGS Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7409 Contact_Electronic_Mail_Address: atan@usgs.gov Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Data were collected in San Francisco Bay, California Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 712 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 1.0E-5 Longitude_Resolution: 1.0E-5 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System 1984 (WGS84) Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: DMP23_sediment_properties.csv Entity_Type_Definition: Table containing attribute information associated with the dataset Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Sample_ID Attribute_Definition: Name of sample Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: Sample identifier, sample IDs that begin with a “P” are from stations located within a dredged material placement region. All other sample IDs begin with the first two letters of a corresponding time series station, with the exception of the set of cores from a channel that begin with “CN”. Attribute: Attribute_Label: Date_Collected Attribute_Definition: Date in MM/DD/YYYY format of sample collection. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 08/10/2023 Range_Domain_Maximum: 02/10/2025 Attribute_Units_of_Measure: month/day/year Attribute: Attribute_Label: Time_UTC Attribute_Definition: Time of sample collection, in hh:mm format, Coordinated Universal Time (UTC) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15:11 Range_Domain_Maximum: 20:02 Attribute_Units_of_Measure: hours:minutes:seconds format, Coordinated Universal Time (UTC) Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of collection Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 37.57107 Range_Domain_Maximum: 37.60643 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.21167 Range_Domain_Maximum: -122.14669 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Sample_Depth_cm Attribute_Definition: The down-core depth of the bottom of the sectioned sampled, where 0 is the surface of the sediment bed. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1 Range_Domain_Maximum: 16 Attribute_Units_of_Measure: centimeter Attribute: Attribute_Label: Section_Thickness_cm Attribute_Definition: The thickness (vertical) of the sediment interval. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.0 Range_Domain_Maximum: 2.0 Attribute_Units_of_Measure: centimeter Attribute: Attribute_Label: Type Attribute_Definition: Type of sample Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sediment Enumerated_Domain_Value_Definition: Sediment core acquired by hand. Enumerated_Domain_Value_Definition_Source: producer defined Attribute: Attribute_Label: -4.00phi_16mm Attribute_Definition: Weight percent of sample with particle diameter greater than -4.00 phi, or 16 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -3.75phi_13.5mm Attribute_Definition: Weight percent of sample with particle diameter between -4.00 and -3.75 phi, or 13.5 and 16 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -3.50phi_11.2mm Attribute_Definition: Weight percent of sample with particle diameter between -3.75 and -3.50 phi, or 11.2 and 13.5 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -3.25phi_9.51mm Attribute_Definition: Weight percent of sample with particle diameter between -3.50 and -3.25 phi, or 9.51 and 11.2 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -3.00phi_8mm Attribute_Definition: Weight percent of sample with particle diameter between -3.25 and -3.00 phi, or 8 and 9.51 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -2.75phi_6.73mm Attribute_Definition: Weight percent of sample with particle diameter between -3.00 and -2.75 phi, or 6.73 and 8 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -2.50phi_5.66mm Attribute_Definition: Weight percent of sample with particle diameter between -2.75 and -2.50 phi, or 5.66 and 6.73 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -2.25phi_4.76mm Attribute_Definition: Weight percent of sample with particle diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -2.00phi_4mm Attribute_Definition: Weight percent of sample with particle diameter between -2.25 and -2.00 phi, or 4 and 4.76 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -1.75phi_3.36mm Attribute_Definition: Weight percent of sample with particle diameter between -2.00 and -1.75 phi, or 3.36 and 4 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -1.50phi_2.83mm Attribute_Definition: Weight percent of sample with particle diameter between -1.75 and -1.50 phi, or 2.83 and 3.36 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -1.25phi_2.38mm Attribute_Definition: Weight percent of sample with particle diameter between -1.50 and -1.25 phi, or 2.38 and 2.83 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -1.00phi_2mm Attribute_Definition: Weight percent of sample with particle diameter between -1.25 and -1.00 phi, or 2 and 2.38 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -0.75phi_1.68mm Attribute_Definition: Weight percent of sample with particle diameter between -1.00 and -0.75 phi, or 1.68 and 2 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 4.23 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -0.50phi_1.41mm Attribute_Definition: Weight percent of sample with particle diameter between -0.75 and -0.50 phi, or 1.41 and 1.68 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.69 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: -0.25phi_1.19mm Attribute_Definition: Weight percent of sample with particle diameter between -0.50 and -0.25 phi, or 1.19 and 1.41 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.67 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 0.00phi_1mm Attribute_Definition: Weight percent of sample with particle diameter between -0.25 and 0.00 phi, or 1 and 1.19 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.74 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 0.25phi_0.8409mm Attribute_Definition: Weight percent of sample with particle diameter between 0.00 and 0.25 phi, or 0.8409 and 1 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.76 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 0.50phi_0.7071mm Attribute_Definition: Weight percent of sample with particle diameter between 0.25 and 0.50 phi, or 0.7071 and 0.8409 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.64 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 0.75phi_0.5946mm Attribute_Definition: Weight percent of sample with particle diameter between 0.50 and 0.75 phi, or 0.5946 and 0.7071 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.41 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 1.00phi_0.5mm Attribute_Definition: Weight percent of sample with particle diameter between 0.75 and 1.00 phi, or 0.5 and 0.5946 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.11 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 1.25phi_0.4204mm Attribute_Definition: Weight percent of sample with particle diameter between 1.00 and 1.25 phi, or 0.4204 and 0.5 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 2.79 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 1.50phi_0.3536mm Attribute_Definition: Weight percent of sample with particle diameter between 1.25 and 1.50 phi, or 0.3536 and 0.4204 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 4.28 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 1.75phi_0.2973mm Attribute_Definition: Weight percent of sample with particle diameter between 1.50 and 1.75 phi, or 0.2973 and 0.3536 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 6.21 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 2.00phi_0.25mm Attribute_Definition: Weight percent of sample with particle diameter between 1.75 and 2.00 phi, or 0.25 and 0.2973 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 8.12 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 2.25phi_0.2102mm Attribute_Definition: Weight percent of sample with particle diameter between 2.00 and 2.25 phi, or 0.2102 and 0.25 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 10.17 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 2.50phi_0.1768mm Attribute_Definition: Weight percent of sample with particle diameter between 2.25 and 2.50 phi, or 0.1768 and 0.2102 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 11.97 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 2.75phi_0.1487mm Attribute_Definition: Weight percent of sample with particle diameter between 2.50 and 2.75 phi, or 0.1487 and 0.1768 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 14.13 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 3.00phi_0.125mm Attribute_Definition: Weight percent of sample with particle diameter between 2.75 and 3.00 phi, or 0.125 and 0.1487 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 15.43 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 3.25phi_0.1051mm Attribute_Definition: Weight percent of sample with particle diameter between 3.00 and 3.25 phi, or 0.1051 and 0.125 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 12.73 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 3.50phi_0.088388mm Attribute_Definition: Weight percent of sample with particle diameter between 3.25 and 3.50 phi, or 0.08839 and 0.1051 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.10 Range_Domain_Maximum: 8.19 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 3.75phi_0.074325mm Attribute_Definition: Weight percent of sample with particle diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.29 Range_Domain_Maximum: 4.54 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 4.00phi_0.0625mm Attribute_Definition: Weight percent of sample with particle diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.67 Range_Domain_Maximum: 4.39 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 4.25phi_0.052556mm Attribute_Definition: Weight percent of sample with particle diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.15 Range_Domain_Maximum: 5.01 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 4.50phi_0.044194mm Attribute_Definition: Weight percent of sample with particle diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.42 Range_Domain_Maximum: 5.51 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 4.75phi_0.037163mm Attribute_Definition: Weight percent of sample with particle diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.40 Range_Domain_Maximum: 5.55 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 5.00phi_0.03125mm Attribute_Definition: Weight percent of sample with particle diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.33 Range_Domain_Maximum: 5.18 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 5.25phi_0.026278mm Attribute_Definition: Weight percent of sample with particle diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.15 Range_Domain_Maximum: 4.74 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 5.50phi_0.022097mm Attribute_Definition: Weight percent of sample with particle diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.95 Range_Domain_Maximum: 4.41 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 5.75phi_0.018581mm Attribute_Definition: Weight percent of sample with particle diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.79 Range_Domain_Maximum: 4.19 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 6.00phi_0.015625mm Attribute_Definition: Weight percent of sample with particle diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.68 Range_Domain_Maximum: 3.87 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 6.25phi_0.013139mm Attribute_Definition: Weight percent of sample with particle diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.65 Range_Domain_Maximum: 4.00 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 6.50phi_0.011049mm Attribute_Definition: Weight percent of sample with particle diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.65 Range_Domain_Maximum: 4.24 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 6.75phi_0.009291mm Attribute_Definition: Weight percent of sample with particle diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.67 Range_Domain_Maximum: 4.46 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 7.00phi_0.007813mm Attribute_Definition: Weight percent of sample with particle diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.69 Range_Domain_Maximum: 4.70 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 7.25phi_0.00657mm Attribute_Definition: Weight percent of sample with particle diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.70 Range_Domain_Maximum: 4.93 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 7.50phi_0.005524mm Attribute_Definition: Weight percent of sample with particle diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.71 Range_Domain_Maximum: 5.16 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 7.75phi_0.004645mm Attribute_Definition: Weight percent of sample with particle diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.69 Range_Domain_Maximum: 5.16 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 8.00phi_0.003906mm Attribute_Definition: Weight percent of sample with particle diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.67 Range_Domain_Maximum: 5.13 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 8.25phi_0.003285mm Attribute_Definition: Weight percent of sample with particle diameter between 8.00 and 8.25 phi, or 0.00329 and 0.00391 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.66 Range_Domain_Maximum: 4.91 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 8.50phi_0.002762mm Attribute_Definition: Weight percent of sample with particle diameter between 8.25 and 8.50 phi, or 0.00276 and 0.00329 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.62 Range_Domain_Maximum: 4.46 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 8.75phi_0.002323mm Attribute_Definition: Weight percent of sample with particle diameter between 8.50 and 8.75 phi, or 0.00232 and 0.00276 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.60 Range_Domain_Maximum: 4.11 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 9.00phi_0.001953mm Attribute_Definition: Weight percent of sample with particle diameter between 8.75 and 9.00 phi, or 0.00195 and 0.00232 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.59 Range_Domain_Maximum: 3.79 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 9.25phi_0.001642mm Attribute_Definition: Weight percent of sample with particle diameter between 9.00 and 9.25 phi, or 0.00164 and 0.00195 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.58 Range_Domain_Maximum: 3.57 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 9.50phi_0.001381mm Attribute_Definition: Weight percent of sample with particle diameter between 9.25 and 9.50 phi, or 0.00138 and 0.00164 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.57 Range_Domain_Maximum: 3.48 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 9.75phi_0.001161mm Attribute_Definition: Weight percent of sample with particle diameter between 9.50 and 9.75 phi, or 0.00116 and 0.00138 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.57 Range_Domain_Maximum: 3.44 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 9.99phi_0.000983mm Attribute_Definition: Weight percent of sample with particle diameter between 9.75 and 9.99 phi, or 0.00098 and 0.00116 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.52 Range_Domain_Maximum: 3.22 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 10.25phi_0.000821mm Attribute_Definition: Weight percent of sample with particle diameter between 9.99 and 10.25 phi, or 0.00082 and 0.00098 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.50 Range_Domain_Maximum: 3.17 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 10.50phi_0.000691mm Attribute_Definition: Weight percent of sample with particle diameter between 10.25 and 10.50 phi, or 0.00069 and 0.00082 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.42 Range_Domain_Maximum: 2.69 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 10.75phi_0.000581mm Attribute_Definition: Weight percent of sample with particle diameter between 10.50 and 10.75 phi, or 0.00058 and 0.00069 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.34 Range_Domain_Maximum: 2.20 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 10.99phi_0.000492mm Attribute_Definition: Weight percent of sample with particle diameter between 10.75 and 10.99 phi, or 0.00049 and 0.00058 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.24 Range_Domain_Maximum: 1.56 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 11.25phi_0.000411mm Attribute_Definition: Weight percent of sample with particle diameter between 10.99 and 11.25 phi, or 0.0004 and 0.00049 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.14 Range_Domain_Maximum: 0.89 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: 11.48phi_0.00035mm Attribute_Definition: Weight percent of sample with particle diameter between 11.25 and 11.48 phi, or 0.00035 and 0.0004 mm, which is the lowest measurable size for the coulter, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.21 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: Shell_Subsample_Weight_g Attribute_Definition: The weight of shells > 1 mm that were sieved from the subsample used for obtaining percent size weights, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 5.61 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: NoShell_Subsample_Weight_g Attribute_Definition: The weight of the subsample post removing shells > 1 mm, this sample was used for obtaining percent size weights, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.89 Range_Domain_Maximum: 19.52 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Percent_Gravel Attribute_Definition: Percent of sample greater than 2 mm, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: Percentage Attribute: Attribute_Label: Percent_Sand Attribute_Definition: Percent of sample less than 2 mm and greater than 63 microns, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.17 Range_Domain_Maximum: 76.49 Attribute_Units_of_Measure: Percentage Attribute: Attribute_Label: Percent_Silt Attribute_Definition: Percent of sample less than 63 microns and greater than 4 microns, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17.13 Range_Domain_Maximum: 63.51 Attribute_Units_of_Measure: Percentage Attribute: Attribute_Label: Percent_Clay Attribute_Definition: Percent of sample less than 4 microns, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6.37 Range_Domain_Maximum: 40.70 Attribute_Units_of_Measure: Percentage Attribute: Attribute_Label: Percent_Mud Attribute_Definition: Percent of sample less than 63 microns, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 23.51 Range_Domain_Maximum: 98.83 Attribute_Units_of_Measure: Percentage Attribute: Attribute_Label: Gravel_to_Sand_ratio Attribute_Definition: ratio of percent sand in sample to percent silt, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: Sand_to_Silt_ratio Attribute_Definition: ratio of percent sand in sample to percent silt, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 4.46 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: Silt_to_Clay_ratio Attribute_Definition: ratio of percent silt in sample to percent clay, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.42 Range_Domain_Maximum: 2.69 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: Sand_to_Clay_ratio Attribute_Definition: ratio of percent sand in sample to percent clay, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 12.01 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: Sand_to_Mud_ratio Attribute_Definition: ratio of percent sand in sample to percent mud, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 3.25 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: Gravel_to_Mud_ratio Attribute_Definition: ratio of percent gravel in sample to percent mud, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.00 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: D50_percent_coarser_in_phi Attribute_Definition: mm size at D50 in percent coarser, -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.69 Range_Domain_Maximum: 7.52 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: D50_percent_coarser_in_mm Attribute_Definition: The particle size in mm at which 50 percent of the distribution is coarser. -999 indicates that no value was calculated. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.15 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: Folk_Ward_Median_percent_coarser Attribute_Definition: Phi size median for sample by Folk and Ward (1957) method, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.69 Range_Domain_Maximum: 7.52 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: Folk_Ward_Mean_percent_coarser Attribute_Definition: Phi size mean for sample by Folk and Ward (1957) method, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.37 Range_Domain_Maximum: 7.53 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: Inman_Median_percent_coarser Attribute_Definition: Phi size median for sample by Inman (1952) method, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.69 Range_Domain_Maximum: 7.52 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: Inman_Mean_percent_coarser Attribute_Definition: Phi size mean for sample by Inman (1952) method, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.59 Range_Domain_Maximum: 7.53 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: Trask_Median_percent_coarser Attribute_Definition: mm size median for sample by Trask (1930) method in mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.15 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: Trask_Mean_percent_coarser Attribute_Definition: mm size mean for sample by Trask (1930) method in mm, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.15 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: 1_Moment_Mean_Phi Attribute_Definition: phi size mean for sample, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.49 Range_Domain_Maximum: 7.52 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: 1_Moment_Mean_mm Attribute_Definition: mm size mean for sample, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.09 Attribute_Units_of_Measure: millimeters Attribute: Attribute_Label: 2_Moment_Variance Attribute_Definition: Variance for sample, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.38 Range_Domain_Maximum: 11.73 Attribute_Units_of_Measure: dimensionless Attribute: Attribute_Label: 2_Moment_Standard_Deviation Attribute_Definition: Standard Deviation for sample, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.84 Range_Domain_Maximum: 3.42 Attribute_Units_of_Measure: Phi size Attribute: Attribute_Label: Bag_Weight_g Attribute_Definition: The weight of the empty sample bag. -999 indicates that no value was measured. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.24 Range_Domain_Maximum: 5.05 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Bag_and_Wet_Sediment_Weight_g Attribute_Definition: The weight of the initial wet sample, as it was collected in the sample bag. -999 indicates that no value was measured. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15.27 Range_Domain_Maximum: 86.62 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Bag_and_Dry_Sediment_Weight_g Attribute_Definition: The weight of the dry sample including the weight of its sample bag. -999 indicates that no value was measured. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.77 Range_Domain_Maximum: 49.11 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Dry_Sediment_Weight_g Attribute_Definition: The weight of the dried sediment in the sample. -999 indicates that no value was measured. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.51 Range_Domain_Maximum: 44.23 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Water_Weight_g Attribute_Definition: The weight of the water from the sample. -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.50 Range_Domain_Maximum: 45.46 Attribute_Units_of_Measure: grams Attribute: Attribute_Label: Approximate_Salinity_PSU Attribute_Definition: The approximate salinity in Practical Salinity Units (PSU), used to calculate the dry bulk density value. -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 18 Range_Domain_Maximum: 26 Attribute_Units_of_Measure: pratical salinity units (PSU) Attribute: Attribute_Label: Dry_Bulk_Density_g/cm^3 Attribute_Definition: The dry bulk density of the sample, calculated as: (1-porosity) * sediment density, where porosity (P) is calculated as P = (water mass/water density)/[(water mass/water density)+(corrected dry sediment mass/sediment density)], water density is 1 g/cm3, sediment density is 2.65 g/cm3, and corrected dry sediment mass is dry sediment mass minus the mass of salt in the pore water. Local salinity readings were used to obtain the mass of salt in the pore water that was left behind during the drying process as: salt mass = water mass * (salinity/1000), -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.22 Range_Domain_Maximum: 1.39 Attribute_Units_of_Measure: grams per cubic centimeter Attribute: Attribute_Label: Percent_Total_Carbon Attribute_Definition: total weight percentage of carbon, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.68 Range_Domain_Maximum: 7.52 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: Percent_Total_Organic_Carbon Attribute_Definition: total weight percentage of organic carbon, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 2.74 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: Percent_Total_Inorganic_Carbon Attribute_Definition: total weight percentage of inorganic carbon, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.04 Range_Domain_Maximum: 7.10 Attribute_Units_of_Measure: percentage Attribute: Attribute_Label: Percent_Calcium_Carbonate Attribute_Definition: weight percentage of calcium carbonate, -999 indicates that no value was calculated. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.37 Range_Domain_Maximum: 59.16 Attribute_Units_of_Measure: percentage Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - CMGDS Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: Sediment particle size, bulk density, and percent carbon data are available as a comma-delimited text file (DMP23_sediment_properties.csv), along with associated FGDC-compliant metadata. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: Microsoft Excel for Microsoft 365 MSO version 2208 Format_Information_Content: comma-delimited text file File_Decompression_Technique: No compression applied Transfer_Size: 0.3593 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P14D723N/ Access_Instructions: Data can be downloaded using the Network_Resource_Name link and scrolling down to the Sediment Properties Data section. Fees: None Metadata_Reference_Information: Metadata_Date: 20250820 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998