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: Porewater chloride and sulfate concentrations from piston and gravity cores collected in September 2019 offshore of south-central California (USGS FAN 2019-642-FA) Geospatial_Data_Presentation_Form: comma-delimited text 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 concentrations chloride and sulfate in porewater from piston and gravity cores collected in September 2019 offshore of south-central California 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. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology. 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:ae53dc9b-b9d1-47cf-aa48-4287588897e3 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 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: Diablo Canyon Place_Keyword: Morro Bay 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: 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. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The locations of samples were determined using the Bold Horizon's internal Yonav navigation system, no other formal positional accuracy tests were conducted. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: No vertical positional accuracy tests were conducted Lineage: Process_Step: Process_Description: Piston and gravity 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). Process_Date: 20190927 Process_Step: Process_Description: Porewater samples were collected at intervals throughout each core using porous ceramic tubes connected to an evacuated small volume syringe at one end and inserted into the cores at the other end to extract pore waters through vacuum action. Porewater samples were filtered through 0.22-µmfilters, diluted 1:100, and injected into a Dionex DX-120 ion chromatograph. Bracketing standards were run every five samples. Long-term reproducibility of Cl concentration measurements is 3.2% (2s). Process_Date: 20200320 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: 324 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 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1927 Altitude_Resolution: 0.1 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 2019-642-FA_porewater.csv Entity_Type_Definition: Porewater data spreadsheet Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Core Attribute_Definition: Core sample from which porewater was sampled Attribute_Definition_Source: Monterey Bay Aquarium Research Institute (MBARI) Attribute_Domain_Values: Unrepresentable_Domain: Unique identifier for the core sample given in the field, where GC=gravity core and JPC=jumbo piston core Attribute: Attribute_Label: Depth cm Attribute_Definition: Depth from top of core at which the porewater was sampled Attribute_Definition_Source: Monterey Bay Aquarium Research Institute (MBARI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 30 Range_Domain_Maximum: 717 Attribute_Units_of_Measure: cm Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Porewater Chloride millimolar Attribute_Definition: Chloride concentration per core segment Attribute_Definition_Source: Monterey Bay Aquarium Research Institute (MBARI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 514.6 Range_Domain_Maximum: 564.5 Attribute_Units_of_Measure: g/mMa Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Porewater Sulfate millimolar Attribute_Definition: Sulfate concentration per core segment Attribute_Definition_Source: Monterey Bay Aquarium Research Institute (MBARI) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 28.6 Attribute_Units_of_Measure: g/mMa Attribute_Measurement_Resolution: 0.1 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 - 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: 2019-642-FA_porewater.csv containing Chloride and Sulfate porewater concentrations. The data are divided up and presented by core sample, as reflected in the individual file name(s). 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_Number: NA Format_Information_Content: 2019-642-FA_porewater.csv containing Chloride and Sulfate porewater concentrations. The data are divided up and presented by core sample, as reflected in the individual file name(s). File_Decompression_Technique: no compression used Transfer_Size: 0.007 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 links then scrolling down to the Sampling Data section. Fees: None. Technical_Prerequisites: These data can be viewed with Excel or any text-reading software. 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