Metadata: Identification_Information: Citation: Citation_Information: Originator: Mary McGann Originator: Charles K. Paull Originator: Eve Lundsten Originator: Roberto Gwiazda Originator: Maureen A.L. Walton Originator: Nora M. Nieminski Originator: Thomas D. Lorenson Originator: Homa J. Lee Publication_Date: 20230925 Title: Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019 Geospatial_Data_Presentation_Form: Comma-separated values Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9FWTKZQ Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: McGann, M., Paull, C.K., Lundsten, E., Gwiazda, R., Walton, M.A.L., Nieminski, N.M., Lorenson, T.D., and Lee. H.J., 2023, Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9FWTKZQ. Online_Linkage: https://doi.org/10.5066/P9FWTKZQ Description: Abstract: Results of radiocarbon age dating of planktic and benthic foraminifera collected from cores obtained in 1999, 2006, and 2019 offshore central California in the vicinity of Morro Bay. Purpose: Understanding the sediment dynamics of the region is critical to evaluate the structural feasibility of offshore wind farm development which is proposed for the area. These samples were taken to provide a chronology from which to assess a history of sediment mobilization via sediment gravity flows on the Morro Bay continental slope over the recent geologic past. Supplemental_Information: Additional information about the field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=O399MB https://cmgds.marine.usgs.gov/fan_info.php?fan=W406MB https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-603-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-642-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-667-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: 19990625 Ending_Date: 20191110 Currentness_Reference: Ground condition at time data were collected. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -121.926150 East_Bounding_Coordinate: -121.300355 North_Bounding_Coordinate: 35.776725 South_Bounding_Coordinate: 35.077682 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Habitat Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: chemical analysis Theme_Keyword: geochemistry Theme_Keyword: marine chemistry Theme_Keyword: radiometric dating Theme_Keyword: carbon-14 analysis Theme_Keyword: organisms Theme_Keyword: protists Theme_Keyword: foraminifera Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: fragile ecosystems Theme_Keyword: chemical oceanography Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: planktic foraminifera Theme_Keyword: benthic foraminifera Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:63bb2535d34e92aad3cd27ae Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Access_Constraints: None 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. 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: 650-329-4979 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Native_Data_Set_Environment: Mac OSX 12.6.3, Microsoft Excel 16.7 for Mac. Cross_Reference: Citation_Information: Originator: M. Stuiver Originator: H.A. Polach Publication_Date: 1977 Title: Discussion: reporting of 14C data Other_Citation_Details: Stuiver, M., and Polach, H.A., 1977, Discussion: Reporting of 14C data: Radiocarbon, v. 19, p. 355-363. Online_Linkage: https://doi.org/10.1017/S0033822200003672 Cross_Reference: Citation_Information: Originator: M. Stuiver Publication_Date: 1980 Title: Workshop on 14C data reporting Other_Citation_Details: Stuiver, M., 1980, Workshop on 14C data reporting. Radiocarbon, v. 2, p. 964-966. Online_Linkage: https://doi.org/10.1017/S0033822200010389 Cross_Reference: Citation_Information: Originator: M. Stuiver Originator: P.J. Reimer Publication_Date: 1993 Title: Extended 14C Data Base and Revised CALIB 3.0 14C Age Calibration Program Other_Citation_Details: Stuiver, M., and Reimer, P.J., 1993: Radiocarbon, v. 35, p. 215-230. Online_Linkage: https://doi.org/10.1017/S0033822200013904 Cross_Reference: Citation_Information: Originator: B.L. Ingram Originator: J.R. Southon Publication_Date: 1996 Title: Reservoir ages in eastern Pacific coastal and estuarine waters Other_Citation_Details: Ingram, B.L., and Southon, J.R., 1996, Reservoir ages in eastern Pacific coastal and estuarine water: Radiocarbon, v. 38, p. 573-582. Online_Linkage: https://doi.org/10.1017/S0033822200030101 Cross_Reference: Citation_Information: Originator: S.S. Kienast Originator: J.L. McKay Publication_Date: 2001 Title: Sea surface temperatures in the subarctic northeast Pacific reflect millennial-scale climate oscillations during the last 16 kyrs Other_Citation_Details: Kienast, S.S., and McKay, J.L., 2001, Sea surface temperatures in the subarctic northeast Pacific reflect millennial-scale climate oscillations during the last 16 kyrs: Geophysical Research Letters, v. 2, p. 1563-1566. Online_Linkage: https://doi.org/10.1029/2000GL012543 Cross_Reference: Citation_Information: Originator: P.J. Reimer Originator: R.W. Reimer Publication_Date: 2001 Title: A marine reservoir correction database and on-line interface. Accessed in 2022 as: 14CHRONO Marine 20 Reservoir Database Other_Citation_Details: Reimer, P.J., and Reimer, R.W., 2001, A marine reservoir correction database and on-line interface: Radiocarbon v. 43, p. 461-463. Online_Linkage: https://calib.org/marine/ Cross_Reference: Citation_Information: Originator: T.J. Heaton Originator: P. Kohler Originator: M. Butzin Originator: E. Bard Originator: R.W. Reimer Originator: W.E.N. Austin Originator: C. Bronk Ramsey Originator: P.M. Grootes Originator: K.A. Hughen Originator: B. Kromer Originator: P.J. Reimer Originator: J. Adkins Originator: A. Burke Originator: M.S. Cook Originator: J. Olsen Originator: L.C. Skinner Publication_Date: 2020 Title: The marine radiocarbon age calibration curve (0-55,000 ca BP) Other_Citation_Details: Heaton, T.J., Kohler, P., Butzin, M., Bard, E., Reimer, R.W., Austin, W.E.N., Bronk Ramsey, C., Grootes, P.M., Hughen, K.A., Kromer, B., Reimer, P.J., Adkins, J., Burke, A., Cook, M.S., Olsen J., and Skinner, L.C., 2020, Marine20 - The marine radiocarbon age calibration curve (0-55,000 ca BP): Radiocarbon, v. 62, p. 779-820. Online_Linkage: https://doi.org/10.1017/RDC.2020.68 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The age and associated error of the radiocarbon ages are calculated from the fraction modern and its error and the ages are reported according to conventions that the radiocarbon community has adopted. The Conventional Radiocarbon Age is always reported rounded (the NOSAMS convention is reported at https://www2.whoi.edu/site/nosams/calculations-and-reporting-of-results). The fraction modern values and the ages are listed in this data release, so there can be no misinterpretations of these data. The age for the calibration (not rounded) can be calculated using -8033 multiplied by the log normal of the fraction modern. Logical_Consistency_Report: Data were checked for logical consistency by the NOSAMS staff before release, and by the USGS staff compiling this data release, to confirm that numerical values were not outside a reasonable range for a particular field. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the metadata for each part of this data release carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. The horizontal accuracy was determined with the ship's GPS navigation (SIMRAD MX 512 Navigation System) which is accurate to 5 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Depth was determined using a using a Knudsen 320B/R Engineering System with a stated accuracy of 5 percent. Lineage: Process_Step: Process_Description: Samples for radiocarbon analysis were measured by accelerator mass spectrometry (AMS) at the National Ocean Sciences AMS (NOSAMS) Facility of Woods Hole Oceanographic Institution. The radiocarbon ages were obtained by a ratio of 14C to 12C using a 14C half-life of 5568 years (Stuiver and Polach, 1977) and then were converted to calibrated calendar ages (cal years BP), with BP (Before Present) equal to 1950, using the CALIB 8.2 program (Stuiver and Reimer, 1993; website accessed in 2022 and 2023) and the Marine20 calibration curve (Heaton and others, 2020). The calibrated ages are reported as the median probability ages at the 95 percent confidence level (2 sigma range). The regional marine radiocarbon reservoir correction (delta R), as defined by Ingram and Southon (1996), used for the planktic foraminiferal samples (delta R equals 59) was based on 40 samples located from 35 degrees North latitude to 40 degrees North latitude in the 14CHRONO Marine 20 Reservoir Database (Reimer and Reimer, 2001, accessed in 2022 at http://calib.org/marine/), and (delta R equals 1100) years for the benthic foraminiferal samples was a reinterpretation of Kienast and McKay, 2001 based on Heaton and others, 2020. The error in the values of the regional deviation were based on the same data set and were delta R error equals 134 for the planktic foraminiferal samples and delta R error equals 200 years for the benthic foraminiferal samples. Process_Date: 2022 Spatial_Data_Organization_Information: 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: 150 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698214 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute table Entity_Type_Definition: Table containing attribute information associated with the data set Entity_Type_Definition_Source: Producer defined. Attribute: Attribute_Label: USGS_FAN Attribute_Definition: Unique U.S. Geological Survey field activity identifier. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Unique U.S. Geological Survey field activity identifier. Attribute: Attribute_Label: Core_ID Attribute_Definition: name of core Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Unrepresentable_Domain: Unique alphanumberic identifier for the core given in the field. JPC refers to a jumbo piston core; VC refers to a vibracore; PC refers to a push core. Attribute: Attribute_Label: Cruise_Number Attribute_Definition: Unique alphanumeric identifier given to the cruise. BH refers to the M/V Bold Horizon; OO refers to the M/V Ocean Olympic. NAN indicates the parameter was not determined because the cruise was on the Monterey Bay Aquarium Research Institute's R/V Western Flyer and no cruise number is assigned to these cruises. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Presence or absence of each alphanumeric identifier Enumerated_Domain_Value_Definition: Cruise was on the M/V Bold Horizon, the M/V Ocean Olympic, or the R/V Western Flyer. Enumerated_Domain_Value_Definition_Source: Producer defined. Attribute: Attribute_Label: Dive_Number Attribute_Definition: Unique alphanumeric identifier given to the dive. DR refers to the Monterey Bay Aquarium Research Institute's remotely operated vehicle Doc Ricketts; T refers to the Monterey Bay Aquarium Research Institute's remotely operated vehicle Tiburon. NAN indicates the core was not obtained with an ROV but off the side of the vessel. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Unrepresentable_Domain: List of Dive ID numbers Attribute: Attribute_Label: Date_Collected Attribute_Definition: Date [YYYY-MM-DD] Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1999-06-25 Range_Domain_Maximum: 2019-11-10 Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sample location. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35.077682 Range_Domain_Maximum: 35.776725 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample location. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -121.300355 Range_Domain_Maximum: -121.926150 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: Water_Depth_m Attribute_Definition: Water depth of core collection. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 636.00 Range_Domain_Maximum: 1126.00 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Core_Section_Number Attribute_Definition: Section number of core. Core sections are assigned from the top of the core to the bottom in intervals of 150 cm (for example, section 1 is 0-150 cm, section 2 is 150-300 cm). Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 8 Attribute_Units_of_Measure: section Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sample_Upper_Depth_Limit_cm Attribute_Definition: Upper depth of sampling interval in core in centimeters. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 698.5 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Sample_Lower_Depth_Limit_cm Attribute_Definition: Lower depth of sampling interval in core in centimeters. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.0 Range_Domain_Maximum: 700.5 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Material_Radiocarbon_Dated Attribute_Definition: Biological specimen type Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Presence or absence of biological type Enumerated_Domain_Value_Definition: Biological type used for radiocarbon dating. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute: Attribute_Label: Radiocarbon_Sample_Weight_mg Attribute_Definition: The weight of the radiocarbon sample measured on a microbalance prior to submission for dating. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.59 Range_Domain_Maximum: 15.41 Attribute_Units_of_Measure: milligrams Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Approximate_Radiocarbon_Sample_Weight_mg Attribute_Definition: An approximate weight of the radiocarbon sample prior to submission for dating, based on an estimated from pre-weighed standards instead of weighing on a microbalance. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 14 Attribute_Units_of_Measure: milligrams Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: NOSAMS_Accession_Number Attribute_Definition: Lab specific ID from AMS facility. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Unrepresentable_Domain: List of lab IDs Attribute: Attribute_Label: Fraction_Modern Attribute_Definition: Fraction modern is a measurement of the deviation of the delta Carbon 14 to delta Carbon 12 ratio of a sample from modern carbon (Stuiver and Polach, 1977; Stuiver, 1980). Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.0006 Range_Domain_Maximum: 0.8942 Attribute_Units_of_Measure: unitless Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Fraction_Modern_Error Attribute_Definition: Fraction modern error is a measurement of the deviation of the delta Carbon 14 to delta Carbon 12 ratio of a sample from modern carbon (Stuiver and Polach, 1977; Stuiver, 1980). Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0003 Range_Domain_Maximum: 0.0029 Attribute_Units_of_Measure: unitless Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Conv_Radiocarbon_Age_yrs_BP Attribute_Definition: Conventional Radiocarbon Age calculated using the radiocarbon decay equation (Stuiver and Polach, 1977; Stuiver, 1980) with BP (Before Present) equal to 1950. Values with the "greater than" sign denote those samples in which the limit of the measuring instrument was exceeded. The maximum range domain is greater than 52,000 years. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 900 Range_Domain_Maximum: 52000 Attribute_Units_of_Measure: years Attribute_Measurement_Resolution: 10 Attribute: Attribute_Label: Conventional_Radiocarbon_Age_Error Attribute_Definition: Standard error for Conventional Radiocarbon Age. 9999 indicates the parameter was not determined. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15 Range_Domain_Maximum: 6700 Attribute_Units_of_Measure: years Attribute_Measurement_Resolution: 5 Attribute: Attribute_Label: Delta_C13_per_mil Attribute_Definition: delta C13 is a measure of the ratio of stable isotopes Carbon13 to Carbon12, reported in parts per thousand (per mil). 9999 indicates the parameter was not determined. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.35 Range_Domain_Maximum: 1.03 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Delta_C14_per_mil Attribute_Definition: The relative difference between the absolute international standard (base year 1950) and sample activity corrected for age and delta Carbon13. Attribute_Definition_Source: defined in Stuiver and Polach (1977) and Stuiver (1980). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1000.58 Range_Domain_Maximum: -113.25 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: dR_yrs_BP Attribute_Definition: The value of the regional deviation from the ocean reservoir age as defined by Ingram and Southon (1996). The regional marine radiocarbon reservoir correction (delta R) used for the planktic foraminiferal samples was delta R equals 59 and delta R equals 1100 years for the benthic foraminiferal samples. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 59 Range_Domain_Maximum: 1100 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: dR_error_yrs_BP Attribute_Definition: Error in the value of the regional deviation from the ocean reservoir age as defined by Ingram and Southon (1996). The regional marine radiocarbon reservoir correction error used for the planktic foraminiferal samples was delta R error equals 134 years and delta R error equals 200 years for the benthic foraminiferal samples. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 134 Range_Domain_Maximum: 200 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Min_Calib_Age_cal_yrs_BP_95_percent_conf Attribute_Definition: Minimum Calibration Age in calibrated years BP at the 95 percent confidence level (2 sigma range) with BP (Before Present) equal to 1950. Determined using the CALIB 8.2 program (Stuiver and Reimer, 1993) and the Marine20 calibration curve (Heaton and others, 2020). 9999 indicates the parameter was not determined. Attribute_Definition_Source: defined in Heaton and others (2020). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 49935 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Max_Calib_Age_cal_yrs_BP_95_percent_conf Attribute_Definition: Maximum Calibration Age in calibrated years BP at the 95 percent confidence level (2 sigma range) with BP (Before Present) equal to 1950. Determined using the CALIB 8.2 program (Stuiver and Reimer, 1993) and the Marine20 calibration curve (Heaton and others, 2020). 9999 indicates the parameter was not determined. Attribute_Definition_Source: defined in Heaton and others (2020). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 512 Range_Domain_Maximum: 54990 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Med_Calib_Age_cal_yrs_BP_95_percent_conf Attribute_Definition: Median Calibration Age in calibrated years BP at the 95 percent confidence level (2 sigma range) with BP (Before Present) equal to 1950. Modern equal to greater than 1950. Determined using the CALIB 8.2 program (Stuiver and Reimer, 1993) and the Marine20 calibration curve (Heaton and others, 2020). 9999 indicates the parameter was not determined. Attribute_Definition_Source: defined in Heaton and others (2020). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 296 Range_Domain_Maximum: 52876 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Med_Calib_Age_Correc_Error_cal_yrs_BP Attribute_Definition: Median Calibration Age error in calibrated years BP with BP (Before Present) equal to 1950. 9999 indicates the parameter was not determined. Calculated using CALIB 8.2 software (Stuiver and Reimer, 1993) and the Marine20 calibration curve (Heaton and others, 2020). Attribute_Definition_Source: defined in Heaton and others (2020). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 135 Range_Domain_Maximum: 4502 Attribute_Units_of_Measure: year Attribute_Measurement_Resolution: 1 Overview_Description: Entity_and_Attribute_Overview: The first line of the comma-separated values 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 - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available in a comma-delimited text file (Central_California_AgeData_data.csv) which contains results from radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019. 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-separated values Format_Version_Number: Microsoft Excel 16.68 for Mac Format_Information_Content: .csv file File_Decompression_Technique: none Transfer_Size: 0.03911 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/63bb2535d34e92aad3cd27ae Network_Resource_Name: https://doi.org/10.5066/P9FWTKZQ Access_Instructions: 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 the landing page for the entire data release. Fees: None. Technical_Prerequisites: These data can be viewed with any text editor software. Metadata_Reference_Information: Metadata_Date: 20230925 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