X-ray Fluorescence (XRF) scans of vibracores collected in Ozette Lake, Washington, in 2019.

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

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:

X-ray Fluorescence (XRF) scans of vibracores collected in Ozette Lake, Washington, in 2019.

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:

Seismic sub-bottom, sediment core, and radiocarbon data collected in Ozette Lake, Washington, from 2019-2021

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

Other_Citation_Details:

Suggested Citation: Snyder, G.R., Balster-Gee, A.F., Brothers, D.S., Singleton, D.M., Padgett, J.S., Hill, J.C., Ritchie, A.C., La Selle, S.M., Kluesner, J.W., Sherrod, B., Powers, D.C., Dal Ferro, P., and Currie, J.E., 2024, Seismic sub-bottom, sediment core, and radiocarbon data collected in Ozette Lake, Washington: U.S. Geological Survey data release, https://doi.org/10.5066/P9W5RAL4.

Online_Linkage: https://doi.org/10.5066/P9W5RAL4

Description:

Abstract:

Sediment cores were collected in Ozette Lake, Washington, in 2019, and cores were scanned using X-ray fluorescence (XRF). These data were used to investigate 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 Ozette Lake, 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 or activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-622-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: 20190714
Ending_Date: 20190803

Currentness_Reference: Ground conditions at the time data were collected.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.700615251
East_Bounding_Coordinate: -124.585683695
North_Bounding_Coordinate: 48.112743138
South_Bounding_Coordinate: 48.011953840

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:bdea56b2-6945-424a-a3a2-0de1914f75d3

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters
Theme_Keyword: geoscientificInformation
Theme_Keyword: location

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: substrate

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geochemistry
Theme_Keyword: core analysis
Theme_Keyword: geospatial datasets

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: data processing
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
Theme_Keyword: Department of the Interior
Theme_Keyword: DOI

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 of the dataset and in products derived from these data. This information is not intended for navigation purposes.

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 values were conducted during coring acquisition, processing, and compilation of the data release.

Logical_Consistency_Report:

Error reports are included as attributes for certain measurements. See detailed attribute descriptions in the Entity and Attribute section below.

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. XRF analysis is only included for cores VC-39, VC-41, VC-43 and VC-46. No data values (denoted by n.d.) within the csv table indicated that no data was collected or available for the sampled section depth, usually occurring near the top and bottom of core sections.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A Hemisphere V110 GPS system was used for obtaining latitude and longitude point locations during the field activity with a stated accuracy of 0.6 meters (95 percent confidence).

Lineage:

Process_Step:

Process_Description:

Vibracore samples were acquired in July of 2019 during USGS field activity 2019-622-FA throughout Ozette Lake in Washington. A Rossfelder P-5 vibracorer was used aboard the USGS Pacific Coastal and Marine Science Center's (PCMSC) coring Platform Hadai. Sediment cores were sent to PCMSC for processing and archiving.

Process_Date: 20190803

Process_Step:

Process_Description:

X-RAY FLUORESCENCE ANALYSIS: Cores were segmented into 150 cm (or shorter) sections and split into "working" and "archive" halves in the lab. Sediment surfaces were cleaned and smoothed on the "archive" halves of split cores. A four micron-thick ultralene film that is transparent to x-rays was applied to the sediment surface in order to protect the XRF window. Cores were loaded onto the track of a Geotek Multi Sensor Core Logger (MSCL) with an Olympus Delta Professional XRF gun mounted to an arm that moves the XRF sensor vertically on and off the core surface. The XRF sensor was calibrated before each scan using a 316-alloy reference coin. The XRF window is 1x1 cm square and measurements were collected every 1 cm downcore, automated by the motors on the MSCL. The XRF was run in "geochem" mode with two beams at 26-28 seconds each. Data were processed with Geotek MSCL software and elemental abundances are reported in parts per million (ppm). Geochem mode processes the data as a closed sum compositional dataset, assuming that all components add up to 100 percent. Elements lighter than Mg are grouped into the "Light Elements" (LE) category in order to maintain a closed compositional dataset.

Process_Date: 20210810
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Angela Tan
Contact_Organization: USGS

Contact_Position: Physical Scientist
Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7409
Contact_Electronic_Mail_Address: atan@usgs.gov

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: 886

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: 0.1
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: OzetteLake.core.XRFdata.csv
Entity_Type_Definition: Table of core XRF data
Entity_Type_Definition_Source: producer defined

Attribute:

Attribute_Label: Core ID
Attribute_Definition: Unique identifier for each core
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: sample identifier

Attribute:

Attribute_Label: Section Number
Attribute_Definition:

Core were sectioned into 150 cm or shorter sections in order to fit into the scanning equipment. Sections numbers are sequential starting from the top of the original unsectioned core.