Metadata: Identification_Information: Citation: Citation_Information: Originator: George R. Snyder Originator: Alicia F. Balster-Gee Originator: Daniel S. Brothers Originator: Drake M. Singleton Originator: Jason S. Padgett Originator: Jenna C. Hill Originator: Andrew C. Ritchie Originator: SeanPaul M. La Selle Originator: Jared W. Kluesner Originator: Brian Sherrod Originator: Daniel C. Powers Originator: Peter Dal Ferro Originator: Jackson E. Currie Publication_Date: 20240615 Title: Multi-sensor core logger (MSCL) data of vibracores and bob-cores collected in Lake Ozette, from 2019 to 2021 Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9W5RAL4 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/P9W5RAL4 Larger_Work_Citation: Citation_Information: Originator: George R. Snyder Originator: Alicia F. Balster-Gee Originator: Daniel S. Brothers Originator: Drake M. Singleton Originator: Jason S. Padgett Originator: Jenna C. Hill Originator: Andrew C. Ritchie Originator: SeanPaul M. La Selle Originator: Jared W. Kluesner Originator: Brian Sherrod Originator: Daniel C. Powers Originator: Peter Dal Ferro Originator: Jackson E. Currie Publication_Date: 2024 Title: Seismic sub-bottom, sediment core, and radiocarbon data collected in Ozette Lake, Washington from 2019 to 2021 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9W5RAL4 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/P9W5RAL4 Description: Abstract: This dataset includes multi-sensor core logger (MSCL) data from sediment cores collected in Lake Ozette, Washington. The sediment cores were collected during USGS field activities 2019-622-FA and 2021-641-FA for investigating submarine landslide deposits triggered by large Cascadia Subduction Zone earthquakes. Purpose: Identification of fault-related submarine hazards is a primary mission of the USGS Coastal and Marine Geology Program. In the US Pacific Northwest region, the greatest earthquake and tsunami threat is posed by the Cascadia Subduction Zone. From 2019-2021 the USGS carried out a detailed field investigation of earthquake-triggered landslide deposits in Lake Ozette, WA, to reconstruct the timing and severity of large subduction zone earthquakes in northern Cascadia. Field data collected as part of this investigation include boomer single-channel seismic, chirp seismic, and sediment cores. These data are intended to further our understanding of geologic hazards relating to the Cascadia Subduction Zone, improve risk assessments for local communities and critical infrastructure, and to provide data for future research on regional tectonic and sedimentary history of northern Cascadia. 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=2019-622-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-641-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: 20210830 Currentness_Reference: Ground conditions at time data were collected Status: Progress: In work Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.66785 East_Bounding_Coordinate: -124.607701 North_Bounding_Coordinate: 48.15099 South_Bounding_Coordinate: 48.051844 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:df37acd4-f390-4473-a3e8-c86659812b2d 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 Washington Place_Keyword: Ozette Lake Place_Keyword: Ozette River Place: Place_Keyword_Thesaurus: None Place_Keyword: Olympic Wilderness Access_Constraints: No access constraints 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 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Quality control of attribute accuracy was conducted during field data collection, processing workflows, and in compilation of this data release. Logical_Consistency_Report: No formal logical consistency tests were conducted. MSCL data values are sometimes inaccurate where there is air within the core section (usually near the start and end of core sections) due to the multi-sensor core logger’s calibration to expect sediment. This may result in nonsensical data values such as negative densities and P-wave velocities. 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. No MSCL data are available for vibracores VC-16 and VC-34. Lineage: Process_Step: Process_Description: Vibracores (VC- labeled core IDs) were collected using a Rossfelder P-5 vibracorer during USGS field activity 2019-622-FA and bob cores (BC- or -BC labeled core IDs) were collected using a mini-hammer corer during USGS field activity 2021-641-FA. The cores were transported back to the USGS Pacific Coastal and Marine Science Center core lab for splitting and archiving and subsequent analyses. Process_Date: 2021 Process_Step: Process_Description: Multi-sensor core logger (MSCL) data were acquired on a Geotek MSCL-S system (https://www.geotek.co.uk/products/mscl-s/). Each core was scanned through the system which records core thickness, p-wave amplitude, p-wave velocity, density, magnetic susceptibility, and acoustic impedance. Users are advised to review the data carefully as measurement intervals and measurements taken vary among cores. No data values are noted by ‘n.d.’ values and often occur near the start and end of core sections. Process_Date: 2021 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: 13459 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 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 Depth_Resolution: 0.001 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: OzetteLake.core.MSCL.csv Entity_Type_Definition: Comma-delimited text file containing multi-sensor core logger data for core samples. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: Core Name Attribute_Definition: Core number as assigned in the lab. VC denotes vibracore and BC for bobcore (aka percussion core) followed by core number (for example, VC-01 is vibracore 1 and BC-101 is bobcore 101). Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Unique identifier for the sample used given in the field. These are explicitly defined in the core information section csv file ‘OzetteLake.core.location.information.csv’ from this same data release. Attribute: Attribute_Label: Section Number Attribute_Definition: Depth in core that each measurement was taken. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 2 Attribute_Units_of_Measure: count of section numbers Attribute: Attribute_Label: Section Depth (cm) Attribute_Definition: Depth in core that each measurement was taken. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 154.5 Attribute_Units_of_Measure: cm (centimeters) Attribute: Attribute_Label: CT (cm) Attribute_Definition: Approximate thickness of core sediments. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.793 Range_Domain_Maximum: 8.692 Attribute_Units_of_Measure: cm (centimeters) Attribute: Attribute_Label: PWAmp (mv/V) Attribute_Definition: P-wave amplitude of sediment in sample interval. In units of RMS value of mV transmitted through core per voltage applied. Values of "n.d." indicate no data. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.0119 Attribute_Units_of_Measure: mV/V (millivolts per volts applied) Attribute: Attribute_Label: PWVel (m/s) Attribute_Definition: P-wave velocity of sediment in sample interval. Values of "n.d." indicate no data. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 448.1962 Range_Domain_Maximum: 4147.509 Attribute_Units_of_Measure: m/s (meters per second) Attribute: Attribute_Label: Den1 (g/cc) Attribute_Definition: Gamma density of sediment in sample interval. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.5121 Range_Domain_Maximum: 2.473 Attribute_Units_of_Measure: g/cc (grams per cubic centimeter) Attribute: Attribute_Label: MS1 (SI x 10^-5) Attribute_Definition: Magnetic susceptibility of sediment in sample interval. Values of "n.d." indicate no data. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -4.6655 Range_Domain_Maximum: 262.5239 Attribute_Units_of_Measure: SI units times 10^-5 Attribute: Attribute_Label: Imp (kg/sm^2 x 10^-5) Attribute_Definition: Acoustic impedance of sediment in sample interval. Values of "n.d." indicate no data. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1060.823 Range_Domain_Maximum: 7018.649 Attribute_Units_of_Measure: kg/(s*m^2) x 10^3 (kilograms per second meter squared times 10^-5) Attribute: Attribute_Label: FP Attribute_Definition: Fractional porosity of sediments. Values of "n.d." indicate no data. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.7944 Range_Domain_Maximum: 1.848 Attribute_Units_of_Measure: Fractional Porosity is a unitless ratio defined as (MGD-GD1)/(MGD-WD) where MGD is mineral grain density, GD1 is the Gamma Density as recorded by the MSCL, and WD is pore fluid density. 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 OzetteLake.core.location.information.csv 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: Multi-sensor core logger data are provided in a csv format (OzetteLake.core.MSCL.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: 2023 Format_Information_Content: Comma-delimited text file of multi-sensor core logger data. Transfer_Size: 0.7971 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9W5RAL4 Access_Instructions: Data can be downloaded using the Network_Resource_Name link and scrolling to the MSCL data section and selecting the OzetteLake.core.MSCL.csv data file for download. Fees: None. Technical_Prerequisites: MSCL data in comma-delimited text format can be viewed with any standard table editing software (for example, Excel, Numbers). Metadata_Reference_Information: Metadata_Date: 20240615 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