Jessica R Lacy Evan T Dailey Emily M Carlson 2018 2.0 Comma-separated values data release doi:10.5066/F7V1241K Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F7V1241K Jessica R Lacy Evan T Dailey Emily M Carlson 2018 4.0 Digital data release doi:10.5066/F7V1241K Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F7V1241K Grain size distribution, bulk density, and percent carbon are reported for sediment push cores from two flooded agricultural tracts, Little Holland Tract and Liberty Island, in the Sacramento-San Joaquin Delta, California. Push core samples were collected from 14 sites by the U.S Geological Survey in August, 2014. Each core was analyzed at multiple depths to investigate variations in particle sizes with depth below the sediment surface. The same sites were sampled again in 2016 (https://www.sciencebase.gov/catalog/item/5a73aa70e4b0a9a2e9e172de). These data provide insight into the variation of particle size distributions in space, bed depth, and time. These data will be used to inform studies of sediment resuspension and transport in Liberty Island and Little Holland Tract and to evaluate the potential for flooded agricultural tracts to contribute to elevated turbidity in adjacent waters. Information about the data collection field activities can be found at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-655-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20140825 20140826 ground condition Complete None planned -121.67414 -121.6543 38.32258 38.26698 USGS Metadata Identifier USGS:5a73a58fe4b0a9a2e9e172cf USGS Thesaurus push coring sea-floor characteristics grain-size analysis unconsolidated deposits sediment transport bulk density carbon ISO 19115 Topic Category Oceans Data Categories for Marine Planning Substrate Marine Realms Information Bank (MRIB) keywords Sediment Global Change Master Directory (GCMD) Sedimentation None USGS U.S. Geological Survey PCMSC Pacific Coastal and Marine Science Center CMGP Coastal and Marine Geology Program U.S. Bureau of Reclamation USBR Geographic Names Information System Sacramento-San Joaquin Delta State of California Little Holland Tract Liberty Island no access 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. U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 United States 831-427-4747 pcmsc_data@usgs.gov https://www.sciencebase.gov/catalog/file/get/5a73a58fe4b0a9a2e9e172cf?name=LHT-LI_SampleMeans_2014_Depths.png&allowOpen=true Image map showing average values of median grain size (excluding gravel) and ratio of sand, silt, and clay for samples 0 to 2 cm deep (left) and 4 to 5 cm deep (right) at each sampling location. PNG Data collection was funded by U.S. Geological Survey and U.S. Bureau of Reclamation Jessica R Lacy Emily M Carlson 2016 data release doi:10.5066/F73R0R07 Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F73R0R07 Alex G Snyder Andrew W Stevens Emily M Carlson Jessica R Lacy 2016 data release doi:10.5066/F7RX9954 Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey http://dx.doi.org/10.5066/F7RX9954 Robert Louis Folk William C. Ward 1957 Journal article Journal of Sedimentary Research, v. 27, n. 1, p. 3-26 Boulder, CO SEPM Society for Sedimentary Geology https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D Douglas Lamar Inman 1952 Journal article Journal of Sedimentary Research, v. 22, n. 3, p. 125-145 Boulder, CO SEPM Society for Sedimentary Geology https://doi.org/10.1306/D42694DB-2B26-11D7-8648000102C1865D Parker D. Trask 1930 Journal article Economic Geology, v. 26, n. 6, p. 581-599 Littleton, CO Society of Economic Geologists (SEG) https://doi.org/10.2113/gsecongeo.25.6.581 UIC Inc. 2022 UIC Inc., Operation Manual Model CM5017 CO2 Coulometer, Joliet, IL, 2.0, p. 28-30. UIC Inc. 2022 UIC Inc., Operation Manual Model CM5200 Autosampler Furnace, Joliet, IL, 2.4, 13 p. UIC Inc. 2022 UIC Inc., Operation Manual Model CM5230 Acidification Module, Joliet, IL, 2.1, p. 15-17. Data values are within the expected values. Data values are within the expected values. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Horizontal accuracy derived from GPS instrumentation is less than 1 m. No formal positional accuracy tests were conducted Sediment samples were collected on August 25 and 26, 2014 using a push core sampler. Sampling positions were recorded using a hand-held global navigation satellite system (GNSS) receiver. 201408 The grain-size distributions of samples were determined in the USGS Pacific Coastal and Marine Science Center sediment lab. Approximately 20 g of sediment was sub-sampled and 10 mL of 35 percent hydrogen peroxide was added to remove organic material in the sample. The sample was heated at 250 degrees C to remove any remaining hydrogen peroxide and was placed in an ultrasonic bath to liberate the fine fraction. Subsequently, the sample was centrifuged for 1.5 hours to remove soluble salts. Samples were funneled through a 2 mm and a 63 um sieve to separate the gravel (greater than 2 mm), sand (63 um to 2 mm), and mud (less than 63 um). The sand and gravel fractions were dried in an 80 degree C oven and weighed. Five mL of sodium hexametaphosphate was added to the mud fraction and a 20 mL aliquot was taken from a 1 L graduated cylinder to determine the weight of the mud. The particle-size distribution of the mud and sand fractions was analyzed separately using a Beckman Coulter LS 13 320, and the gravel, sand, and mud results were integrated into a single grain-size distribution for each sample. Where used, phi sizes are equal to the negative log base 2 of millimeter size. 201409 Bulk density was calculated by weighing the sample bag, the wet sample in the bag, and the dry sample in the bag. Measurements were made in the USGS Pacific Coastal and Marine Science Center sediment lab. The bulk density reported here was calculated as: water density (1 g/cm3) times sediment density (2.65 g/cm3) divided by water density plus the product of sediment density minus sediment density and water content of the sample. 201409 Corrected name of theme keyword thesaurus from ISO 19115 Topic Categories to Category. Updated contact information to bring up to USGS PCMSC standards. 20180717 Susan A Cochran U.S. Geological Survey, Pacific Coastal and Marine Science Center mailing and physical

2885 Mission St.

Santa Cruz CA 95060 United States 831-460-7545 scochran@usgs.gov Corrected Point of Contact and Metadata Contact phone number prefix. No data were changed. 20180905 Susan A Cochran U.S. Geological Survey, Pacific Coastal and Marine Science Center mailing and physical

2885 Mission St.

Santa Cruz CA 95060 United States 831-460-7545 scochran@usgs.gov Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. 20201019 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Performed minor edits to the metadata to correct typos. No data were changed 20211013 U.S. Geological Survey Susan A. Cochran Geologist Mailing and Physical

2885 Mission Street

Santa Cruz CA 95060 831-460-7545 scochran@usgs.gov CARBON ANALYSIS: A total of 5 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. 20230823 Added percent carbon data to the end of the data table. 2024 U.S. Geological Survey Samantha McGill Oceanographer Mailing and Physical

2885 Mission Street

Santa Cruz CA 95060 831-460-7543 scmcgill@usgs.gov Data were collected in the Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California Point 1.0E-5 1.0E-5 Decimal degrees World Geodetic System 1984 (WGS84) WGS84 6378137.0 298.257223563 GrainsizeBD_LHT-LI_2014Cores.csv Table containing attribute information associated with the dataset Producer defined FACS/FAN I.D. Unique U.S. Geological Survey field activity identifier. Producer defined Unique U.S. Geological Survey field activity identifier. Sample I.D. Sample identifier Producer defined Unique identifier for samples; assigned in the field. Lab I.D. Sample identifier for sediment lab Producer defined Unique identifier for samples; assigned in the sediment lab. Date Collected Date in month/day/year format of sample collection. Producer defined 08/25/2014 08/26/2014 Date in month/day/year format Time (PDT) Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT). Producer defined 00:00:00 23:59:59 hours:minutes:seconds format, Pacific Daylight Time (PDT) Site Unique identifier of sampling locations. Producer defined Unique identifier of sampling locations. Latitude Latitude of sample location in decimal degrees, north. Producer defined 38.26698 38.32258 Decimal degrees Longitude Longitude of sample location in decimal degrees, east. Producer defined -121.67414 -121.6543 Decimal degrees Sample Type Type of sample collected Producer defined section of push core Sample collected with push core Producer defined Core Depth The midpoint of the depth into the sediment bed of the sample producer defined 0.5 17.0 centimeters Thickness The thickness (starting depth to the ending depth) of the sediment core sampled producer defined 1 2 centimeters Wt. percent in -4.00 phi bin or 16 mm bin Weight percent of sample with grain diameter greater than -4.00 phi, or 16 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -3.75 phi bin or 13.5 mm bin Weight percent of sample with grain diameter between -4.00 and -3.75 phi, or 13.5 and 16 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -3.50 phi bin or 11.2 mm bin Weight percent of sample with grain diameter between -3.75 and -3.50 phi, or 11.2 and 13.5 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -3.25 phi bin or 9.51 mm bin Weight percent of sample with grain diameter between -3.50 and -3.25 phi, or 9.51 and 11.2 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -3.00 phi bin or 8 mm bin Weight percent of sample with grain diameter between -3.25 and -3.00 phi, or 8 and 9.51 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -2.75 phi bin or 6.73 mm bin Weight percent of sample with grain diameter between -3.00 and -2.75 phi, or 6.73 and 8 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in -2.50 phi bin or 5.66 mm bin Weight percent of sample with grain diameter between -2.75 and -2.50 phi, or 5.66 and 6.73 mm, "NA" indicates that no value was calculated. producer defined 0.00 2.79 percentage Wt. percent in -2.25 phi bin or 4.76 mm bin Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.73 percentage Wt. percent in -2.00 phi bin or 4 mm bin Weight percent of sample with grain diameter between -2.25 and -2.00 phi, or 4 and 4.76 mm, "NA" indicates that no value was calculated. producer defined 0.00 2.74 percentage Wt. percent in -1.75 phi bin or 3.36 mm bin Weight percent of sample with grain diameter between -2.00 and -1.75 phi, or 3.36 and 4 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.24 percentage Wt. percent in -1.50 phi bin or 2.83 mm bin Weight percent of sample with grain diameter between -1.75 and -1.50 phi, or 2.83 and 3.36 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.07 percentage Wt. percent in -1.25 phi bin or 2.38 mm bin Weight percent of sample with grain diameter between -1.50 and -1.25 phi, or 2.38 and 2.83 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.99 percentage Wt. percent in -1.00 phi bin or 2 mm bin Weight percent of sample with grain diameter between -1.25 and -1.00 phi, or 2 and 2.38 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.91 percentage Wt. percent in -0.75 phi bin or 1.68 mm bin Weight percent of sample with grain diameter between -1.00 and -0.75 phi, or 1.68 and 2 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.34 percentage Wt. percent in -0.50 phi bin or 1.41 mm bin Weight percent of sample with grain diameter between -0.75 and -0.50 phi, or 1.41 and 1.68 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.37 percentage Wt. percent in -0.25 phi bin or 1.19 mm bin Weight percent of sample with grain diameter between -0.50 and -0.25 phi, or 1.19 and 1.41 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.38 percentage Wt. percent in 0.00 phi bin or 1 mm bin Weight percent of sample with grain diameter between -0.25 and 0.00 phi, or 1 and 1.19 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.40 percentage Wt. percent in 0.25 phi bin or 0.8409 mm bin Weight percent of sample with grain diameter between 0.00 and 0.25 phi, or 0.8409 and 1 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.43 percentage Wt. percent in 0.50 phi bin or 0.7071 mm bin Weight percent of sample with grain diameter between 0.25 and 0.50 phi, or 0.7071 and 0.8409 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.55 percentage Wt. percent in 0.75 phi bin or 0.5946 mm bin Weight percent of sample with grain diameter between 0.50 and 0.75 phi, or 0.5946 and 0.7071 mm, "NA" indicates that no value was calculated. producer defined 0.00 1.81 percentage Wt. percent in 1.00 phi bin or 0.5 mm bin Weight percent of sample with grain diameter between 0.75 and 1.00 phi, or 0.5 and 0.5946 mm, "NA" indicates that no value was calculated. producer defined 0.02 2.03 percentage Wt. percent in 1.25 phi bin or 0.4204 mm bin Weight percent of sample with grain diameter between 1.00 and 1.25 phi, or 0.4204 and 0.5 mm, "NA" indicates that no value was calculated. producer defined 0.00 2.22 percentage Wt. percent in 1.50 phi bin or 0.3536 mm bin Weight percent of sample with grain diameter between 1.25 and 1.50 phi, or 0.3536 and 0.4204 mm, "NA" indicates that no value was calculated. producer defined 0.02 2.92 percentage Wt. percent in 1.75 phi bin or 0.2973 mm bin Weight percent of sample with grain diameter between 1.50 and 1.75 phi, or 0.2973 and 0.3536 mm, "NA" indicates that no value was calculated. producer defined 0.02 4.14 percentage Wt. percent in 2.00 phi bin or 0.25 mm bin Weight percent of sample with grain diameter between 1.75 and 2.00 phi, or 0.25 and 0.2973 mm, "NA" indicates that no value was calculated. producer defined 0.01 6.80 percentage Wt. percent in 2.25 phi bin or 0.2102 mm bin Weight percent of sample with grain diameter between 2.00 and 2.25 phi, or 0.2102 and 0.25 mm, "NA" indicates that no value was calculated. producer defined 0.02 10.59 percentage Wt. percent in 2.50 phi bin or 0.1768 mm bin Weight percent of sample with grain diameter between 2.25 and 2.50 phi, or 0.1768 and 0.2102 mm, "NA" indicates that no value was calculated. producer defined 0.02 12.69 percentage Wt. percent in 2.75 phi bin or 0.1487 mm bin Weight percent of sample with grain diameter between 2.50 and 2.75 phi, or 0.1487 and 0.1768 mm, "NA" indicates that no value was calculated. producer defined 0.01 11.92 percentage Wt. percent in 3.00 phi bin or 0.125 mm bin Weight percent of sample with grain diameter between 2.75 and 3.00 phi, or 0.125 and 0.1487 mm, "NA" indicates that no value was calculated. producer defined 0.01 8.91 percentage Wt. percent in 3.25 phi bin or 0.1051 mm bin Weight percent of sample with grain diameter between 3.00 and 3.25 phi, or 0.1051 and 0.125 mm, "NA" indicates that no value was calculated. producer defined 0.03 5.53 percentage Wt. percent in 3.50 phi bin or 0.08839 mm bin Weight percent of sample with grain diameter between 3.25 and 3.50 phi, or 0.08839 and 0.1051 mm, "NA" indicates that no value was calculated. producer defined 0.02 3.02 percentage Wt. percent in 3.75 phi bin or 0.07433 mm bin Weight percent of sample with grain diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm, "NA" indicates that no value was calculated. producer defined 0.01 3.22 percentage Wt. percent in 4.00 phi bin or 0.0625 mm bin Weight percent of sample with grain diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm, "NA" indicates that no value was calculated. producer defined 0.00 3.47 percentage Wt. percent in 4.25 phi bin or 0.052556 mm bin Weight percent of sample with grain diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm, "NA" indicates that no value was calculated. producer defined 0.00 3.22 percentage Wt. percent in 4.50 phi bin or 0.044194 mm bin Weight percent of sample with grain diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm, "NA" indicates that no value was calculated. producer defined 0.00 2.80 percentage Wt. percent in 4.75 phi bin or 0.037163 mm bin Weight percent of sample with grain diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm, "NA" indicates that no value was calculated. producer defined 0.07 2.63 percentage Wt. percent in 5.00 phi bin or 0.03125 mm bin Weight percent of sample with grain diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm, "NA" indicates that no value was calculated. producer defined 0.39 2.74 percentage Wt. percent in 5.25 phi bin or 0.02628 mm bin Weight percent of sample with grain diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm, "NA" indicates that no value was calculated. producer defined 0.68 2.94 percentage Wt. percent in 5.50 phi bin or 0.0221 mm bin Weight percent of sample with grain diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm, "NA" indicates that no value was calculated. producer defined 0.62 3.00 percentage Wt. percent in 5.75 phi bin or 0.01858 mm bin Weight percent of sample with grain diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm, "NA" indicates that no value was calculated. producer defined 0.49 3.11 percentage Wt. percent in 6.00 phi bin or 0.01563 mm bin Weight percent of sample with grain diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm, "NA" indicates that no value was calculated. producer defined 0.77 3.30 percentage Wt. percent in 6.25 phi bin or 0.01314 mm bin Weight percent of sample with grain diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm, "NA" indicates that no value was calculated. producer defined 1.09 3.55 percentage Wt. percent in 6.50 phi bin or 0.01105 mm bin Weight percent of sample with grain diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm, "NA" indicates that no value was calculated. producer defined 1.19 3.71 percentage Wt. percent in 6.75 phi bin or 0.00929 mm bin Weight percent of sample with grain diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm, "NA" indicates that no value was calculated. producer defined 1.28 4.32 percentage Wt. percent in 7.00 phi bin or 0.00781 mm bin Weight percent of sample with grain diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm, "NA" indicates that no value was calculated. producer defined 1.36 4.96 percentage Wt. percent in 7.25 phi bin or 0.00657 mm bin Weight percent of sample with grain diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm, "NA" indicates that no value was calculated. producer defined 1.42 5.46 percentage Wt. percent in 7.50 phi bin or 0.00552 mm bin Weight percent of sample with grain diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm, "NA" indicates that no value was calculated. producer defined 1.48 5.89 percentage Wt. percent in 7.75 phi bin or 0.00465 mm bin Weight percent of sample with grain diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm, "NA" indicates that no value was calculated. producer defined 1.48 6.39 percentage Wt. percent in 8.00 phi bin or 0.00391 mm bin Weight percent of sample with grain diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm, "NA" indicates that no value was calculated. producer defined 1.49 6.99 percentage Wt. percent in 8.25 phi bin or 0.00329 mm bin Weight percent of sample with grain diameter between 8.00 and 8.25 phi, or 0.00329 and 0.00391 mm, "NA" indicates that no value was calculated. producer defined 1.46 7.30 percentage Wt. percent in 8.50 phi bin or 0.00276 mm bin Weight percent of sample with grain diameter between 8.25 and 8.50 phi, or 0.00276 and 0.00329 mm, "NA" indicates that no value was calculated. producer defined 1.36 7.15 percentage Wt. percent in 8.75 phi bin or 0.00232 mm bin Weight percent of sample with grain diameter between 8.50 and 8.75 phi, or 0.00232 and 0.00276 mm, "NA" indicates that no value was calculated. producer defined 1.28 6.98 percentage Wt. percent in 9.00 phi bin or 0.00195 mm bin Weight percent of sample with grain diameter between 8.75 and 9.00 phi, or 0.00195 and 0.00232 mm, "NA" indicates that no value was calculated. producer defined 1.19 6.62 percentage Wt. percent in 9.25 phi bin or 0.00164 mm bin Weight percent of sample with grain diameter between 9.00 and 9.25 phi, or 0.00164 and 0.00195 mm, "NA" indicates that no value was calculated. producer defined 1.09 6.12 percentage Wt. percent in 9.50 phi bin or 0.00138 mm bin Weight percent of sample with grain diameter between 9.25 and 9.50 phi, or 0.00138 and 0.00164 mm, "NA" indicates that no value was calculated. producer defined 0.98 5.62 percentage Wt. percent in 9.75 phi bin or 0.00116 mm bin Weight percent of sample with grain diameter between 9.50 and 9.75 phi, or 0.00116 and 0.00138 mm, "NA" indicates that no value was calculated. producer defined 0.89 5.19 percentage Wt. percent in 10.00 phi bin or 0.00098 mm bin Weight percent of sample with grain diameter between 9.75 and 10.00 phi, or 0.00098 and 0.00116 mm, "NA" indicates that no value was calculated. producer defined 0.75 4.49 percentage Wt. percent in 10.25 phi bin or 0.00082 mm bin Weight percent of sample with grain diameter between 10.00 and 10.25 phi, or 0.00082 and 0.00098 mm, "NA" indicates that no value was calculated. producer defined 0.67 4.11 percentage Wt. percent in 10.50 phi bin or 0.00069 mm bin Weight percent of sample with grain diameter between 10.25 and 10.50 phi, or 0.00069 and 0.00082 mm, "NA" indicates that no value was calculated. producer defined 0.52 3.30 percentage Wt. percent in 10.75 phi bin or 0.00058 mm bin Weight percent of sample with grain diameter between 10.50 and 10.75 phi, or 0.00058 and 0.00069 mm, "NA" indicates that no value was calculated. producer defined 0.39 2.61 percentage Wt. percent in 11.00 phi bin or 0.00049 mm bin Weight percent of sample with grain diameter between 10.75 and 11.00 phi, or 0.00049 and 0.00058 mm, "NA" indicates that no value was calculated. producer defined 0.26 1.79 percentage Wt. percent in 11.25 phi bin or 0.0004 mm bin Weight percent of sample with grain diameter between 11.00 and 11.25 phi, or 0.0004 and 0.00049 mm, "NA" indicates that no value was calculated. producer defined 0.14 1.01 percentage Wt. percent in 11.50 phi bin or 0.00035 mm bin Weight percent of sample with grain diameter between 11.25 and 11.50 phi, or 0.00035 and 0.0004 mm, "NA" indicates that no value was calculated. producer defined 0.03 0.23 percentage Wt. percent in 12.00 phi bin or 0.000241 mm bin Weight percent of sample with grain diameter between 11.50 and 12.00 phi, or 0.000241 and 0.00035 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Wt. percent in 13.00 phi bin or 0.00012 mm bin Weight percent of sample with grain diameter between 12.00 and 13.00 phi, or 0.00012 and 0.000241 mm, "NA" indicates that no value was calculated. producer defined 0.00 0.00 percentage Percent Gravel Percent of sample greater than 2 mm, "NA" indicates that no value was calculated. Producer defined 0.00 4.55 Percentage Percent Sand Percent of sample less than 2 mm and greater than 63 microns, "NA" indicates that no value was calculated. Producer defined 0.31 69.88 Percentage Percent Silt Percent of sample less than 63 microns and greater than 4 microns, "NA" indicates that no value was calculated. Producer defined 17.91 51.96 Percentage Percent Clay Percent of sample less than 4 microns, "NA" indicates that no value was calculated. Producer defined 11.01 60.91 Percentage Percent Mud Percent of sample less than 63 microns, "NA" indicates that no value was calculated. Producer defined 28.92 99.69 Percentage Gravel/Sand Ratio of gravel to sand in sample, "NA" indicates that no value was calculated. Producer defined 0.00 0.88 Sand/Silt Ratio of sand to silt in sample, "NA" indicates that no value was calculated. Producer defined 0.01 3.90 Silt/Clay Ratio of silt to clay in sample, "NA" indicates that no value was calculated. Producer defined 0.60 2.13 Sand/Clay Ratio of sand to clay in sample, "NA" indicates that no value was calculated. Producer defined 0.01 6.35 Sand/Mud Ratio of sand to mud in sample, "NA" indicates that no value was calculated. Producer defined 0.00 2.42 Gravel/Mud Ratio of gravel to mud in sample, "NA" indicates that no value was calculated. Producer defined 0.00 0.07 D5 Phi Phi size at D5 for sample, "NA" indicates that no value was calculated. Producer defined -0.85 6.13 Phi size D10 Phi Phi size at D10 for sample, "NA" indicates that no value was calculated. Producer defined 0.35 6.66 Phi size D16 Phi Phi size at D16 for sample, "NA" indicates that no value was calculated. Producer defined 1.25 7.05 Phi size D25 Phi Phi size at D25 for sample, "NA" indicates that no value was calculated. Producer defined 2.03 7.47 Phi size D50 Phi Phi size at D50 for sample, "NA" indicates that no value was calculated. Producer defined 2.73 8.40 Phi size D75 Phi Phi size at D75 for sample, "NA" indicates that no value was calculated. Producer defined 5.16 9.39 Phi size D84 Phi Phi size at D84 for sample, "NA" indicates that no value was calculated. Producer defined 7.16 9.83 Phi size D90 Phi Phi size at D90 for sample, "NA" indicates that no value was calculated. Producer defined 8.18 10.19 Phi size D95 Phi Phi size at D95 for sample, "NA" indicates that no value was calculated. Producer defined 9.17 10.56 Phi size F-W Median Phi size median for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. producer defined 2.73 8.40 Phi size F-W Mean Phi size mean for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. producer defined 3.96 8.40 Phi size F-W Sorting sorting for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. producer defined 1.34 3.55 Phi size F-W Skewness skewness for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. producer defined -0.41 0.69 Phi size F-W Kurtosis Kurtosis for sample by Folk and Ward (1957) method, "NA" indicates that no value was calculated. producer defined 0.61 1.47 Phi size Inman Median Phi size median for sample by Inman (1952) method, "NA" indicates that no value was calculated. producer defined 2.73 8.40 Phi size Inman Mean Phi size mean for sample by Inman (1952) method, "NA" indicates that no value was calculated. producer defined 4.57 8.40 Phi size Inman Sorting sorting for sample by Inman (1952) method, "NA" indicates that no value was calculated. producer defined 1.35 3.80 Phi size Inman Skew 16-84 skewness for sample (D16-D84) by Inman (1952) method, "NA" indicates that no value was calculated. producer defined -0.41 0.72 Phi size Inman Skew 05-95 skewness for sample (D5-D95) by Inman (1952) method, "NA" indicates that no value was calculated. producer defined -1.02 0.99 Phi size Inman Kurtosis Kurtosis for sample by Inman (1952) method, "NA" indicates that no value was calculated. producer defined 0.26 1.40 Phi size Trask Median mm size median for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. producer defined 0.00 0.15 millimeters Trask Mean mm size mean for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. producer defined 0.00 0.13 millimeters Trask Sorting sorting for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. producer defined 1.90 7.71 millimeters Trask Skewness skewness for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. producer defined 0.10 6.11 millimeters Trask Kurtosis kurtosis for sample by Trask (1930) method in mm, "NA" indicates that no value was calculated. producer defined 0.04 0.35 millimeters Mean Phi phi size mean for sample, "NA" indicates that no value was calculated. producer defined 3.80 8.34 Phi size Mean mm mm size mean for sample, "NA" indicates that no value was calculated. producer defined 0.00 0.07 millimeters Variance variance for sample, "NA" indicates that no value was calculated. producer defined 1.91 12.19 Phi size Std. Dev. standard deviation for sample, "NA" indicates that no value was calculated. producer defined 1.38 3.49 Phi size Skewness skewness for sample, "NA" indicates that no value was calculated. producer defined -2.10 1.03 Phi size Kurtosis kurtosis for sample, "NA" indicates that no value was calculated. producer defined 1.51 8.85 Phi size Mode in Phi Mode or modes of sample in phi units. If sample was multi-modal, multiple mode values reported, separated by semicolon. "NA" indicates that no value was calculated. producer defined -2.38 8.38 Phi size Bag Weight The weight of the empty sample bag. "NA" indicates that no value was calculated. producer defined 3.24 3.88 grams Bag and Wet Sediment Weight The weight of the initial wet sample, as it was collected in the sample bag. "NA" indicates that no value was calculated. producer defined 17.99 46.16 grams Dry Sediment Weight The weight of the dried sediment in the sample. "NA" indicates that no value was calculated. producer defined 6.92 31.31 grams Bulk Density The bulk density of the sample, calculated as the mass of the dry sediment divided by the volume of the initial sample. "NA" indicates that no value was calculated. producer defined 1.39 1.85 grams per cubic centimeter Percent_Total_Carbon total weight percentage of carbon, NA indicates that no value was calculated. producer defined 0.98 2.20 percentage Percent_Total_Organic_Carbon total weight percentage of organic carbon, NA indicates that no value was calculated. producer defined 0.92 2.18 percentage Percent_Total_Inorganic_Carbon total weight percentage of inorganic carbon, NA indicates that no value was calculated. producer defined 0.01 0.06 percentage Percent_Calcium_Carbonate weight percentage of calcium carbonate, NA indicates that no value was calculated. producer defined 0.07 0.47 percentage U.S. Geological Survey - ScienceBase U.S. Geological Survey mailing and physical

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov These data are available in csv format (GrainSizeBDCarbon_LHT-LI_2014Cores.csv) along with CSDGM FGDC-compliant metadata. 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. csv Microsoft Excel 2016 MSO (16.0.4549.1000) 64-bit zip file contains the csv table, associated metadata, and an image map of the study area showing sample locations, grain size summaries, and elevation model No compression applied 0.07246 https://www.sciencebase.gov/catalog/file/get/5a73a58fe4b0a9a2e9e172cf https://www.sciencebase.gov/catalog/item/5a73a58fe4b0a9a2e9e172cf https://doi.org/10.5066/F7V1241K Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. None. The data is available in comma-separated values (CSV) spreadsheet format. Text editing software can be used to open the file, as well as spreadsheet programs, such as Microsoft Excel. 20250319 U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 United States 831-427-4747 pcmsc_data@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998