Metadata: Identification_Information: Citation: Citation_Information: Originator: Thomas D. Lorenson Originator: Ray W. Sliter Originator: James E. Conrad Originator: Antoinette Papesh Originator: Jonathan A. Warrick Publication_Date: 2021 Title: Core logger data from vibracores collected offshore Oceanside to San Diego, southern California, during field activity 2018-638-FA from 2018-05-22 to 2018-05-26 Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9690BEK 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/P9690BEK Larger_Work_Citation: Citation_Information: Originator: Ray W. Sliter Originator: James E. Conrad Originator: Thomas D. Lorenson Originator: Antoinette G. Papesh Originator: Jonathan A. Warrick Publication_Date: 2021 Title: Geophysical and core sample data collected offshore Oceanside, southern California, during field activity 2018-638-FA from 2018-05-22 to 2018-05-26 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9690BEK 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/P9690BEK Description: Abstract: This section of the data release contains core logger tabular data of 41 vibracores that were collected aboard the R/V Bold Horizon in 2018 on U.S. Geological Survey Field Activity 2018-638-FA offshore Oceanside to San Diego, southern California. The cores were analyzed for sound velocity (P-wave) and gamma ray density. The logging was performed at 1-cm intervals from the top of each core section. In addition to the core logger data, the location of the cores are available as either a comma-delimited file or a shapefile. Purpose: Core logger data were used to assess sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects along stretches of the coast where critical erosion hotspots have been identified. This cruise was funded through partnerships with the Bureau of Ocean Energy Management (BOEM) and the State of California Ocean Protection Council (OPC). Supplemental_Information: Additional information about the field activity from which these data were derived is available online at: http://cmgds.marine.usgs.gov/fan_info.php?fan=2018-638-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: Single_Date/Time: Calendar_Date: 20180526 Currentness_Reference: ground condition at time data were collected Status: Progress: Planned Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -117.592761 East_Bounding_Coordinate: -117.198116 North_Bounding_Coordinate: 33.330130 South_Bounding_Coordinate: 32.538404 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:212ce4bf-9d96-443e-b270-462de61f6ca5 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: Material Resources Theme_Keyword: Assessments Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: vibracoring Theme_Keyword: marine geology Theme_Keyword: drilling and coring Theme_Keyword: core analysis Theme_Keyword: sea-floor characteristics Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: geology Theme_Keyword: geotechnical experiments 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: Oceanside Place_Keyword: San Mateo Point Place_Keyword: San Diego Place_Keyword: Silver Strand Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: North 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. Please recognize and acknowledge the U.S. Geological Survey (USGS, the Bureau of Ocean Energy Management (BOEM), and the California Geological Survey (CGS) 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 Browse_Graphic: Browse_Graphic_File_Name: 2018-638-FA_tracks_and_cores.png Browse_Graphic_File_Description: Map showing locations of vibracore sites (purple dots) and tracklines (blue) along which chirp seismic data were collected. Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: comma separated file Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Identified as best available version Logical_Consistency_Report: Core logger data were collected in the lab from vibracores collected during USGS cruise 2018-638-FA using a Geotek Multi-Sensor Core Logger. The logging was performed at regular intervals. Quality control was conducted during the logging process. 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: 41 cores were collected on cruise 2018-638-FA with a Rossfelder P-5 vibracorer. Process_Date: 20180526 Process_Step: Process_Description: 42 core logger data files were created for 41 vibracores (core OC36 is in two sections). The core logging was done with a Geotek Multi-Sensor Core Logger running Geoteck MSCL software. The logger was equipped for gamma ray density measurements and P-wave sediment velocity measurements. The logging was performed at 1-cm intervals from the top of each core section. Core logger data consist of whole core P-wave relative amplitude, P-wave velocity, and gamma density. The GeoTek MSCL is equipped with two acoustic rolling transducers for measuring p-wave velocity on whole cores. The sensors were calibrated prior to logging with known dimensions of the core, core liner thickness, and core temperature. A 137Cs gamma ray source and gamma detector are mounted on the GeoTek MSCL for measuring bulk densities, which are based on gamma attenuation through core samples. The measurement was calibrated using an aluminum calibration piece mounted inside a water-filled polycarbonate core section. Anomalous values for P-wave velocity and gamma density were not excluded from the data. Measurements of velocity below 200 meters per second and gamma ray density measurements below 0.1 grams per cubic centimeter or missing data values were the result of poor contact with the core sample or air voids at the logging location. Process_Date: 20180803 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: 41 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: WGS 1984 UTM Zone 11N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -117.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0001 Ordinate_Resolution: 0.0001 Planar_Distance_Units: Meter Geodetic_Model: Horizontal_Datum_Name: D WGS 1984 Ellipsoid_Name: WGS 1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Attribute table Entity_Type_Definition: Table containing attribute information associated with the dataset Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: DEPTH cm Attribute_Definition: section depth in centimeters Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 151 Attribute_Units_of_Measure: centimeters Attribute: Attribute_Label: PWAmp Attribute_Definition: P-wave amplitude, relative scale Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 0.9713 Attribute_Units_of_Measure: no units Attribute: Attribute_Label: PWVel m/s Attribute_Definition: P-wave velocity, calculated Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 92.4615 Range_Domain_Maximum: 2187.314 Attribute_Units_of_Measure: meters per second Attribute: Attribute_Label: Den1 g/cc Attribute_Definition: gamma ray density, calculated Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.2889 Range_Domain_Maximum: 2.0793 Attribute_Units_of_Measure: grams per centimeter Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Pacific Coastal and Marine Science Center 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: 2018-638-FA_core_logs.zip contains core log data for vibracores collected during PCMSC field activity 2018-638-FA. Supplemental files include 2018-638-FA_core_locations.csv and 2018-638-FA_core_locations_shapefile.zip. 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: 20210430 Format_Information_Content: 2018-638-FA_core_logs.zip contains core logger tabular data per vibracore section File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 0.062 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9690BEK Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Date: 20210430 Format_Information_Content: 2018-638-FA_core_locations_shapefile.zip is a shapefile of vibracore locations File_Decompression_Technique: Winzip, 7-zip, or Winrar are free software that will open .zip files Transfer_Size: 0.055 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9690BEK Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Date: 20210430 Format_Information_Content: 2018-638-FA_core_locations.csv is a text file containing vibracore locations File_Decompression_Technique: no compression used Transfer_Size: 0.011 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9690BEK Access_Instructions: Data can be downloaded using the Network_Resource_Name link, then scroll down to the Sampling Data/Core logger data section. Fees: None. Technical_Prerequisites: These data can be viewed with Microsoft Excel software. Metadata_Reference_Information: Metadata_Date: 20210525 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