Metadata: Identification_Information: Citation: Citation_Information: Originator: Jenna C. Hill Originator: Nora M. Nieminski Originator: SeanPaul M. La Selle Originator: Janet T. Watt Originator: Daniel S. Brothers Originator: Mary L. McGann Originator: Travis V. Alongi Originator: Gerry A. Hatcher Originator: Brandon M. Nasr Originator: Jennifer A. McKee Originator: Peter Dal Ferro Publication_Date: 20240326 Title: Information on sediment cores collected offshore southern Cascadia, during field activity 2019-643-FA Geospatial_Data_Presentation_Form: CSV format tabular data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P1E8GDZH 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/P1E8GDZH Larger_Work_Citation: Citation_Information: Originator: Jenna C. Hill Originator: Nora M. Nieminski Originator: SeanPaul M. La Selle Originator: Janet T. Watt Originator: Daniel S. Brothers Originator: Mary L. McGann Originator: Travis V. Alongi Originator: Gerry A. Hatcher Originator: Brandon M. Nasr Originator: Jennifer A. McKee Originator: Peter Dal Ferro Publication_Date: 2024 Title: Sediment core data from offshore southern Cascadia - USGS field activity 2019-643-FA Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P1E8GDZH Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: Hill, J.C., Nieminski, N.M., La Selle, S.M., Watt, J.W., Brothers, D.S., McGann, M.L., Alongi, T.V., Hatcher, G.A., Nasr, B.M., McKee, J.A., and Dal Ferro, P., 2024, Sediment core data from offshore southern Cascadia during field activity 2019-643-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P1E8GDZH. Online_Linkage: https://doi.org/10.5066/P1E8GDZH Description: Abstract: This dataset presents core information such as core IDs, section numbers, lengths, depth intervals, and locations from sediment cores collected in southern Cascadia (offshore northern California) aboard the M/V Bold Horizon in September-October 2019. An inventory of core section CT, MSCL, and photograph scan files available in this data release are listed here. Purpose: As part of a multi-year project focused on characterizing offshore marine geohazards (tsunamis, earthquakes, and landslides), the U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program is collaborating with the Bureau of Ocean Energy Management (BOEM) to conduct research offshore northern California. This region marks the southern extent of the Cascadia Subduction Zone, which is a major tectonic boundary that is prone to megathrust earthquakes and includes a BOEM offshore wind area of interest. To gain a better understanding of the geologic hazards of the region, improve risk assessments for local communities and critical infrastructure, and to provide data for future research on regional tectonic, sedimentary, and geomorphic evolution of coastal California, the USGS collected sediment cores to enable a detailed investigation of southern Cascadia’s geologic history and ongoing activity. 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=2019-643-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: 20190927 Ending_Date: 20191010 Currentness_Reference: Ground conditions at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -125.25388241 East_Bounding_Coordinate: -124.07787323 North_Bounding_Coordinate: 41.76311745 South_Bounding_Coordinate: 40.76311745 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:af69a1fa-36ed-4c05-a925-61a376a2b994 Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: core analysis Theme_Keyword: ocean processes Theme_Keyword: sediment transport Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: substrate Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: sediment 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: Department of the Interior Theme_Keyword: DOI Theme_Keyword: field activity number 2019-643-FA Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Humboldt County Place_Keyword: Eureka 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. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) 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: Balster-Gee, A.F. Originator: Hill, J.C. Originator: Watt, J.T. Originator: Brothers, D.S. Originator: Nieminski, N.M. Originator: Alongi, T. Originator: Hatcher, G.A. Originator: Nasr, B.M. Publication_Date: 2017 Title: Multichannel minisparker seismic-reflection and chirp subbottom data collected offshore Northern California during USGS field activity 2019-643-FA Other_Citation_Details: Balster-Gee, A.F., Hill, J.C., Watt, J.T., Brothers, D.S., Nieminski, N.M., Alongi, T., Hatcher, G.A., Nasr, B.M., 2023, Multichannel minisparker seismic-reflection and chirp subbottom data collected offshore Northern California during USGS field activity 2019-643-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P998EC72. Seismic data collected during field activity 2019-643-FA by the USGS linked here for user interest. Online_Linkage: https://doi.org/10.5066/P998EC72. Cross_Reference: Citation_Information: Originator: Dartnell, P. Originator: Conrad, J.E. Originator: Watt, J.T. Originator: Hill, J.C. Publication_Date: 2021 Title: Composite multibeam bathymetry surface and data sources of the southern Cascadia Margin offshore Oregon and northern California Other_Citation_Details: Dartnell, P., Conrad, J.E., Watt, J.T., and Hill, J.C., 2021, Composite multibeam bathymetry surface and data sources of the southern Cascadia Margin offshore Oregon and northern California: U.S. Geological Survey data release, https://doi.org/10.5066/P9C5DBMR Online_Linkage: https://doi.org/10.5066/P9C5DBMR. Cross_Reference: Citation_Information: Originator: Ryan, W.B.F. Originator: Carbotte, S.M. Originator: Coplan, J.O. Originator: O’Hara, A.M. Originator: Melkonian, A. Originator: Arko, R. Originator: Weissel, R.A. Originator: Goodwillie, A. Originator: Nitsche, F. Originator: Bonczkowski, J. Originator: Zemsky, R. Publication_Date: 2009 Title: Global Multi-Resolution Topography synthesis Other_Citation_Details: Originator: Ryan, W.B.F., Carbotte, S.M., Coplan, J.O., O’Hara, A.M., Melkonian, A., Arko, R., Weissel, R.A., Goodwillie, A., Nitsche, F., Bonczkowski, J., Zemsky, R., 2009, Global Multi-Resolution Topography synthesis: Geochemistry, Geophysics, Geosystems, v. 10, n. 3, p. 9, https://doi.org/10.1029/2008GC002332 Online_Linkage: https://doi.org/10.1029/2008GC002332 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted. Logical_Consistency_Report: No formal logical consistency tests were conducted. Completeness_Report: Dataset 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. Some cells are intentionally left blank if there was no recovery of the core or other issues with core quality. These issues are noted in the ‘notes’ column. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A Hemisphere V110 GPS system was used for obtaining latitude and longitude point locations during the field activity with a stated accuracy of 0.6 meters (95 percent confidence). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Water depth values at core locations were estimated from multibeam bathymetric data (Dartnell and others (2021) or Ryan and others (2009)). No formal vertical accuracy tests were conducted. Lineage: Process_Step: Process_Description: Cores were collected aboard MV Bold Horizon using a U.S. Geological Survey (USGS) jumbo piston corer (JPC) on cruise 2019-643-FA. The JPC system consisted of a 2500-lb head weight, 3.43-inch diameter barrel, and polybutyrate liner. The JPC trigger arm was set up to collect a trigger core (TC) associated with each JPC (if successful). Gravity cores (GC) were collected with the same JPC system in two localities. JPCs and GCs were extruded and sectioned at sea. The cores were then transported back to the USGS Pacific Coastal and Marine Science Center. Process_Date: 2019 Process_Step: Process_Description: Cores were scanned, split, and sampled at the USGS Pacific Coastal and Marine Science Center core lab in Santa Cruz, CA. Process_Date: 2020 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: 179 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Local surface for water depth Depth_Resolution: 0.5 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 2019-643-FA_cores.csv Entity_Type_Definition: Comma separated value text file with name, location, and length/depth information for each core section, and an inventory of CT, MSCL, and linescan files. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: core_id Attribute_Definition: The unique identifier for a core site. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Unrepresentable_Domain: Identifier for the type of core (for example, GC- for gravity core, JPC- for jumbo piston core, TC- for trigger core) followed by a unique number for the core site. Attribute: Attribute_Label: section_number Attribute_Definition: Section number of core. If blank, core was not used for analyses or not recovered. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 6 Attribute_Units_of_Measure: sections Attribute: Attribute_Label: section_length_cm Attribute_Definition: Length of an individual core section. If blank, core was not used for analyses or not recovered. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.5 Range_Domain_Maximum: 152.0 Attribute_Units_of_Measure: cm Attribute: Attribute_Label: section_top_cm Attribute_Definition: Depth at top of core section in centimeters. If blank, core was not used for analyses or not recovered. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 564.8 Attribute_Units_of_Measure: cm Attribute: Attribute_Label: section_bottom_cm Attribute_Definition: Depth at bottom of core section in centimeters. If blank, core was not used for analyses or not recovered. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8.3 Range_Domain_Maximum: 715.6 Attribute_Units_of_Measure: cm Attribute: Attribute_Label: total_core_length_cm Attribute_Definition: Sum of all section lengths in a core. If blank, core was not used for analyses or not recovered. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8.3 Range_Domain_Maximum: 715.6 Attribute_Units_of_Measure: cm Attribute: Attribute_Label: latitude Attribute_Definition: Latitude of sample in decimal degrees, North Attribute_Definition_Source: Onboard Hemishphere V110 GPS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 40.57770 Range_Domain_Maximum: 41.58120 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: longitude Attribute_Definition: Longitude of sample in decimal degrees, East Attribute_Definition_Source: Onboard Hemishphere V110 GPS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -124.94707 Range_Domain_Maximum: -124.17528 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: water_depth_m Attribute_Definition: Depth of seafloor at core location Attribute_Definition_Source: Estimated from position on bathymetry datasets (see vertical positional accuracy report). Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 55 Range_Domain_Maximum: 1280 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: date_collected Attribute_Definition: Date of core collection in mm/dd/yyyy format. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9/30/2019 Range_Domain_Maximum: 10/08/2019 Attribute_Units_of_Measure: date Attribute: Attribute_Label: ct_file_xz Attribute_Definition: Filename of associated TIFF file of coronal (XZ) CT image of core section. Blank values indicate CT scans were not collected. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Filenames start with the FA number (2019_643_FA) followed by the core id, section number, 'XZView' and end with .tif file extension. Attribute: Attribute_Label: ct_file_yz Attribute_Definition: Filename of associated TIFF file of saggital (YZ) CT image of core section. Blank values indicate CT scans were not collected. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Filenames start with the FA number (2019_643_FA) followed by the core id, section number, and 'YZView' and end with .tif file extension. Attribute: Attribute_Label: photo_file Attribute_Definition: Filename of associated TIFF file of core section photograph. Blank values indicate photographs were not collected. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Filenames start with the FA number (2019_643_FA) followed by the core id and section number and end with .tif file extension. Attribute: Attribute_Label: mscl_file Attribute_Definition: Filename of associated CSV file containing MSCL data. Blank values indicate MSCL data were not collected. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Filenames start with the FA number (2019_643_FA) followed by the core id and end with .csv file extension. Attribute: Attribute_Label: notes Attribute_Definition: Notes on poor quality of core or recovery that explain why some core analyses were not performed. Notes are blank if there was no issue with the core quality. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: 'material disturbed', 'bagged in intervals', 'no recovery', 'imploded liner' Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: Producer defined 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: 1-831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: Core information is provided in a comma separated value (CSV) text file (2019-643-FA_cores.csv). 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_Date: 2024 Format_Information_Content: Comma separated value (csv) text file of core information. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P1E8GDZH Access_Instructions: Data can be downloaded using the Network_Resource_Name link and scrolling to 2019-643-FA_cores.csv in the Sampling Data section. Fees: None. Technical_Prerequisites: CSV files can be viewed with any standard table editing software (for example, excel, numbers). Metadata_Reference_Information: Metadata_Date: 20240326 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