Metadata: Identification_Information: Citation: Citation_Information: Originator: George R. Snyder Originator: Alicia F. Balster-Gee Originator: Jared W. Kluesner Originator: Samuel Y. Johnson Originator: Elisa Medri Originator: Alex Simms Originator: Stu Nishenko Originator: H. Gary Greene Originator: James E. Conrad Publication_Date: 20221213 Title: Grain-size data of vibracores collected offshore central California, during field activity 2019-651-FA Geospatial_Data_Presentation_Form: CSV format tabular data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9A0U8J7 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/P9A0U8J7 Larger_Work_Citation: Citation_Information: Originator: George R. Snyder Originator: Alicia F. Balster-Gee Originator: Jared W. Kluesner Originator: Samuel Y. Johnson Originator: Elisa Medri Originator: Alex Simms Originator: Stu Nishenko Originator: H. Gary Greene Originator: James E. Conrad Publication_Date: 2022 Title: Geophysical and core sample data collected offshore central California, during field activity 2019-651-FA Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9A0U8J7 Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9A0U8J7 Description: Abstract: This dataset includes grain-size data of sediment cores collected offshore central California in the vicinity of Morro Bay. These data were collected aboard the M/V Bold Horizon in October 2019 for use in regional hazard assessments relating to the Hosgri Fault. Purpose: Identification of fault-related submarine hazards is a primary mission of the USGS Coastal and Marine Hazards and Resources Program. The Hosgri Fault is a submarine fault system that likely poses the greatest submarine earthquake threat in the central California region. To gain a better understanding of this fault system, the USGS collected sparker multichannel seismic, CHIRP seismic, and sediment cores to enable a detailed investigation of its geologic history and ongoing activity. These data are intended to further our understanding of geologic hazards near the Hosgri Fault, 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. This work was funded through a Cooperative Research and Development Agreement (CRADA) between the USGS and Pacific Gas and Electric Corporation. Supplemental_Information: Additional information about the field activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-651-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: 20191018 Ending_Date: 20191024 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: -121.080024 East_Bounding_Coordinate: -121.074185 North_Bounding_Coordinate: 35.477597 South_Bounding_Coordinate: 35.476497 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:6f632d55-e9c1-479f-942f-98528ba142dc 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: USGS Thesaurus Theme_Keyword: core analysis Theme_Keyword: coastal processes Theme_Keyword: geospatial datasets 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 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: San Luis Obispo County Place_Keyword: Cayucos Place_Keyword: Cambria Place_Keyword: Estero Bay Place_Keyword: Morro Bay Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: Diablo Canyon 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 and University of California, Santa Barbara Department of Earth Sciences 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 Data_Set_Credit: USGS PCMSC Marine Facility personnel Rachel Marcuson, Jenny McKee, Cordell Johnson, and Dan Powers led vibracore collection operations. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Quality control of attribute accuracy was conducted during field data collection and processing workflows. 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. Lineage: Process_Step: Process_Description: Cores were collected aboard the M/V Bold Horizon using a Rossfelder P-5 vibracorer during U.S. Geological Survey cruise 2019-651-FA. The cores were transported back to the USGS Pacific Coastal and Marine Science Center core lab for subsequent analyses. Process_Date: 2019 Process_Step: Process_Description: One cubic centimeter core samples were taken at 5 cm intervals in cores HF-01, HF-03, and HF-07. Core HF-05, the longest core, was sampled at 5-cm intervals for the first 105 cm, and then at 2- and 3-cm intervals for the rest of the core. Sediment samples were pre-treated with 30 percent hydrogen peroxide to remove organic materials. Then, sediment was loaded into a CILAS 1190L particle size analyzer with a stated measurement range of 0.04 to 2500 microns. Process_Date: 2022 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elisa Medri Contact_Organization: UC Santa Barbara Department of Earth Sciences Contact_Address: Address_Type: mailing and physical Address: 1006 Webb Hall City: Santa Barbara State_or_Province: CA Postal_Code: 93106 Contact_Voice_Telephone: 805-893-4688 Contact_Electronic_Mail_Address: emedri@umail.ucsb.edu Process_Step: Process_Description: Corrected author/Originator spelling in Citation and Larger Work Citation sections of metadata (Media to Medri). No data were changed. (scochran@usgs.gov) Process_Date: 20230104 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: 147 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 2019-651-FA_cores_grainsize.csv Entity_Type_Definition: Comma-delimited text file containing grain-size data for core samples. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Core Attribute_Definition: Name of core sample. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Unique identifier for the sample used given in the field Attribute: Attribute_Label: Depth Attribute_Definition: Depth of sample within core as measured from top of core. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 295 Attribute_Units_of_Measure: centimeters Attribute: Attribute_Label: Percent grains 0 - 3.900 microns Attribute_Definition: Percent of grains with diameter between 0 – 3.9 microns. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00000000 Range_Domain_Maximum: 18.61130047 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Percent grains 3.900 – 62.500 microns Attribute_Definition: Percent of grains with diameter between 3.9 – 62.500 microns. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.936793566 Range_Domain_Maximum: 66.27854538 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Percent grains 62.500 – 2000 microns Attribute_Definition: Percent of grains with diameter between 62.500 - 2000 microns. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 19.22875214 Range_Domain_Maximum: 98.06320643 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Diameter at 50.00 percent Attribute_Definition: Diameter of median grain size Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15.6994462 Range_Domain_Maximum: 240.7506994 Attribute_Units_of_Measure: microns Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Location information for each sediment core can be found in the 2019-651-FA_cores_locations shapefile included in this data release. 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: 1-831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: Grain size data are provided in a comma-separated (csv) format (2019-651-FA_cores_grainsize.csv) accompanied by CSDGM 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_Date: 2022 Format_Information_Content: Comma-delimited text file of sediment grain-size data. Transfer_Size: 0.008 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9A0U8J7 Access_Instructions: Data can be downloaded using the Network_Resource_Name link and scrolling to the Environmental Data section. Fees: None. Technical_Prerequisites: Grain size data in .csv format can be viewed with any standard table editing software (for example, Excel, Numbers). Metadata_Reference_Information: Metadata_Date: 20230104 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