Metadata: Identification_Information: Citation: Citation_Information: Originator: Daniel J. Kennedy Originator: Maureen A. Walton Originator: Guy R. Cochrane Originator: Charlie Paull Originator: Roberto Gwiazda Originator: Thomas D. Lorenson Originator: Jason A. Addison Originator: Eve Lundsten Publication_Date: 20211016 Title: Multi-Sensor Core Logger (MSCL) data of piston and gravity cores collected in September 2019 offshore of south-central California (USGS FAN 2019-642-FA) Geospatial_Data_Presentation_Form: comma-delimited and tab-delimited text files Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9DE639J 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/P9DE639J Larger_Work_Citation: Citation_Information: Originator: Daniel J. Kennedy Originator: Maureen A. Walton Originator: Guy R. Cochrane Originator: Charlie Paull Originator: Roberto Gwiazda Originator: Thomas D. Lorenson Originator: Jason A. Addison Originator: Eve Lundsten Publication_Date: 2021 Title: Piston and gravity core data collected during USGS cruise 2019-642-FA offshore of south-central California in support of the Bureau of Ocean Energy Management (BOEM) California Deepwater Investigations and Groundtruthing (Cal DIG I) alternative energy project, September 2019 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9DE639J 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/P9DE639J Description: Abstract: This dataset includes multi-sensor core logger (MSCL) data for 39 piston and gravity cores that were collected as part of a groundtruthing survey in September 2019 aboard the R/V Bold Horizon. This dataset is one of several collected as part of the Bureau of Ocean Energy Management (BOEM)-funded California Deepwater Investigations and Groundtruthing (Cal DIG I) project. The purpose of the study is to assess shallow geohazards, benthic habitats, and thereby the potential for alternative energy infrastructure (namely floating wind turbines) offshore south-central California due to its proximity to power grid infrastructure associated with the Morro Bay power plant. These core data provide information about the geology of the seafloor and shallow subsurface offshore of the south-central California coast. Purpose: This dataset was collected in order to identify shallow geohazards, benthic habitats, and thereby the potential for alternative energy infrastructure (namely floating wind turbines) offshore south-central California due to its proximity to power grid infrastructure associated with the Morro Bay power plant. Supplemental_Information: Additional information about the USGS field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-642-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: 20190927 Currentness_Reference: ground condition at the time the samples were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -121.106945 East_Bounding_Coordinate: -121.869382 North_Bounding_Coordinate: 35.782235 South_Bounding_Coordinate: 34.535102 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5847e622-afeb-4969-a628-fe3e94a6ee9f Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Nonliving resources Theme_Keyword: Physical/Chemical Features Theme_Keyword: Substrate Theme_Keyword: Physical Habitats and Geomorphology Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: core analysis Theme_Keyword: coastal processes Theme_Keyword: hazards Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: sediment Theme_Keyword: submarine landslides 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: Bureau of Ocean Energy Management Theme_Keyword: BOEM Theme_Keyword: California Deepwater Investigations and Groundtruthing Theme_Keyword: Cal DIG I Theme_Keyword: Bold Horizon Theme_Keyword: Boho Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: Diablo Canyon Place_Keyword: Morro Bay Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: Santa Lucia Bank Place_Keyword: Diablo Canyon Place_Keyword: Santa Barbara Basin 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) as the originator 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: 2019-642-FA_core_thumbnail.png Browse_Graphic_File_Description: Bathymetry map of study area with sample sites in purple Browse_Graphic_File_Type: png Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted Logical_Consistency_Report: No formal logical accuracy tests were conducted Completeness_Report: Piston and gravity cores were collected from 39 of the 40 sampling sites. Site 08GC returned a 0 cm length core, with only a sample collected, so this site was not possible to log. Some jumbo piston cores (JPC) are missing logging from the bottom 22.5 cm; this is because a 5 cm long whole-round section was removed 17.5 cm from the base of some jumbo piston cores for sampling. In these cases, the lowest 22.5 cm of the logging data have been omitted to avoid a 5 cm gap in the logging data and likely artifacts from logging the short 17.5 cm sections at the base of these cores. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The locations of samples were determined using the R/V Bold Horizon's internal Yonav navigation system. No other formal positional accuracy tests were conducted. Lineage: Process_Step: Process_Description: Piston (JPC) and gravity (GC) cores were collected at sea aboard the R/V Bold Horizon on U.S. Geological Survey (USGS) cruise 2019-642-FA in conjunction with the Monterey Bay Aquarium Research Institute (MBARI). Often, a trigger core (TC) and a jumbo piston core accompanies each other at the same site; gravity cores will not have associated trigger cores. The trigger cores provide the shallowest sedimentary record at jumbo piston core sites. The cores were cut at sea into sections of maximum 1.5 meters and transported back to the USGS Pacific Coastal and Marine Science Center in Santa Cruz, CA. In the lab, cores were run through a GeoTek Multi-Sensor Core logger (MSCL), which measures gamma density, P-wave seismic velocity, and magnetic susceptibility. Measurements were calibrated to account for changes in core diameter and temperature. Gamma density measurements were calibrated using a known standard. Data are presented in folders per core. Folders follow the naming convention ##CoreType where ## is the core site number and CoreType is either TC (trigger core), JPC (jumbo piston core), or GC (gravity core) at that core site. Core sections were most often logged in sequence from top to bottom of the core (for example, starting with section 1, the shallowest section in the core, and then logging in sequence downsection from there). This method provides a continuous downcore data file in most cases. In some cases, a section needed to be relogged due to equipment or user issues. When relogging was necessary, folders have been appended with section numbers and/or data types (for example, 17JPC_section5) indicating which sections and/or data types were relogged. These folders contain only the data for those relogged sections. Each folder contains a .csv file that includes the scanning parameters and measurements, as well as several files including the following: a .raw file (machine-readable text file) containing the raw, uncalibrated data collected by the GeoTek system; an .out file (machine-readable text file) is the lab-calibrated file (the processed data) using calibration parameters outlined in the header of the .out file (the .out file is likely to be the file of most interest to users); a GeoTek system file (.dat); and a calibration files (.cal). The .dat and .cal files can be used to open, view, and manipulate the logging data using a GeoTek software system. Process_Date: 20200301 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Roberto Gwiazda Contact_Organization: Monterey Bay Aquarium Research Institute (MBARI) Contact_Position: Research Specialist Contact_Address: Address_Type: mailing and physical Address: 7700 Sandholdt Road City: Moss Landing State_or_Province: CA Postal_Code: 95039 Contact_Voice_Telephone: 831-775-1828 Contact_Electronic_Mail_Address: rgwiazda@mbari.org 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: 76 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: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Multi-sensor core logging (MSCL) data from piston and gravity cores. Each folder contains a .csv file that includes the scanning parameters and measurements, as well as several files including the following: a .raw file (machine-readable text file) containing the raw, uncalibrated data collected by the GeoTek system; an .out file (machine-readable text file) is the lab-calibrated file (the processed data) using calibration parameters outlined in the header of the .out file (the .out file is likely to be the file of most interest to users); a GeoTek system file (.dat); and a calibration files (.cal). The .dat and .cal files can be used to open, view, and manipulate the logging data using a GeoTek software system. 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_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 Resource_Description: Multi-sensor core logging (MSCL) data are packaged per core or core segment as identified in the folder file name. Within each folder are .cal, .dat, .out, .raw, and .csv files. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for have been reviewed for accuracy and completeness and approved for release by 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: various delimited text files Format_Version_Number: NA Format_Information_Content: Multi-sensor core logging (MSCL) data are packaged per core or core segment as identified in the folder file name. Within each folder are .cal, .dat, .out, .raw, and .csv files. File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 144.7 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9DE639J Access_Instructions: Data can be downloaded using the Network_Resource_Name link then scrolling down to the Sampling Data section. Fees: None. Technical_Prerequisites: Users will need WinZip, pkUnzip, or similar software to unzip the data package. Within the unzipped folder, data are presented per core. Each sub-folder contains GeoTek proprietary .cal, .dat, .out, and .raw files. Excel or any text-reading software can be used to read the .csv file. Metadata_Reference_Information: Metadata_Date: 20211016 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