A.A. Boggess B.J. Buczkowski J.D. Chaytor 20230605 1.0 digital data DOI:10.5066/P9H74BAX Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Hazards and Resources Program https://doi.org/10.5066/P9H74BAX https://www.sciencebase.gov/catalog/item/6436e630d34ee8d4addcb35f A.A. Boggess B.J. Buczkowski J.D. Chaytor 2023 1.0 data release DOI:10.5066/P9H74BAX Reston, VA U.S. Geological Survey Suggested citation: Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2023, Sedimentological and geotechnical analyses of marine sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9H74BAX. https://doi.org/10.5066/P9H74BAX https://www.sciencebase.gov/catalog/item/64355a3dd34ee8d4addacd40 Twenty-four piston cores (and associated trigger cores) were collected from the source zone of the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon by the U.S. Geological Survey and the University of Rhode Island Department of Ocean Engineering during an eight-day cruise aboard the R/V Hugh R. Sharp in September/October of 2012. These cores were analyzed for evidence of seafloor mass transport processes, with an emphasis on constraining the age and shallow stratigraphy of the landslide complex. Sedimentological and geotechnical characterization of the cores was carried out through whole core imaging and description, followed by analysis of discrete samples at the USGS Woods Hole Coastal and Marine Science Center's Sediment Analysis Laboratory and other facilities, including grain-size, CaCO3 content, mineral composition, and bulk index properties (e.g., undrained shear strength and water content), micropaleontologic separations, and geochronology. This data release contains the results of these core descriptions and results of the laboratory analyses. The data provides a comprehensive understanding of the nature and properties of the sediments found in this geographic location. Radiographs highlight sedimentary structures, especially bioturbation, mass transport deposit morphology, and the fine tails of turbidites. Cores were collected on the Hugh R. Sharp cruise HRS1209 from September 28, 2012 to October 4, 2012, and currently reside in the Woods Hole Coastal and Marine Science Center's core repository. Information about USGS Field Activity 2012-007-FA is available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-007-FA. 20120928 20121004 ground condition Complete None planned -74.75686 -74.52812 36.43533 36.14594 ISO 19115 Topic Category oceans geoscientificInformation None U.S. Geological Survey USGS Woods Hole Coastal and Marine Science Center WHCMSC sediment samples cores piston cores trigger cores Cruise ID HRS1209 WHCMSC Field Activity 2012-007-FA Hugh R. Sharp X-radiograph USGS Thesaurus geology sedimentology piston coring core analysis unconsolidated deposits clay deposits sand deposits earth material properties Holocene USGS Metadata Identifier USGS:6436e630d34ee8d4addcb35f None Currituck Landslide Baltimore Canyon Atlantic U.S. Continental Shelf Virginia North Carolina Maryland None. Not to be used for navigation. The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Jason D. Chaytor U.S. Geological Survey, Northeast Region Research Geologist mailing and physical

384 Woods Hole Road

Woods Hole MA 02543 US 508-548-8700 x2351 jchaytor@usgs.gov https://www.sciencebase.gov/catalog/file/get/6436e630d34ee8d4addcb35f?name=HRS1209_Xradiograph2.jpg&allowOpen=true Browse image of the collection locations of cores that were X-rayed. JPEG Microsoft Windows 10 Enterprise Version 10.0.18363 (Build 18363) Attribute values input into the x-radiograph were double checked to ensure that they related the correct interval data to the information available for each core imaged. X-ray images are generally consistent with expected results. Of the 24 cores collected during the Hugh R. Sharp HRS1209 cruise, 10 cores were imaged using radiography. Each core was cut into sections on the ship after collection. 2016 Jason D. Chaytor U.S. Geological Survey, Northeast Region Research Geologist mailing and physical

384 Woods Hole Road

Woods Hole MA 02543 US 508-548-8700 x2351 jchaytor@usgs.gov Once back onshore, digital x-radiographs of each core section were acquired at the Cape Cod Veterinary Specialists in Buzzards Bay, Mass. X-radiograph images were saved as JPG files and were organized in folders by core. Each photo should overlap on each side with the preceding and succeeding interval by a few centimeters. The files were named for the core (for example, HRS1209-5PC) then the section (1, 2, or 3) and then the frame interval (1, 2, 3, 4, or 5). The section numbers increase from bottom of the core to top of the core, while the interval numbers increase from top of the section to bottom of the section. Folders for cores HRS1209-6PC, HRS1209-7PC, HRS1209-12PC, HRS1209-14PC also contain cropped JPG image files, JPG image files stitched together, and PSD files used to create the stitched images. 2014 Jason D. Chaytor U.S. Geological Survey, NORTHEAST REGION Research Geologist mailing address

384 Woods Hole Road

Woods Hole MA 02543 US 508-548-8700 x2351 jchaytor@usgs.gov 0.0197464427 0.0258271413 Decimal degrees WGS_1984 WGS_84 6378137.0 298.257223563 Local surface 0.1 meters Attribute values HRS1209_Xradiograph.zip ZIP file containing JPG images of piston cores collected from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon in folders organized by core. Producer Defined U.S. Geological Survey - ScienceBase mailing and physical

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov The dataset includes the data file (HRS1209_Xradiograph.zip), the browse graphic HRS1209_BrowseGraphic.png), and the FGDC CSDGM metadata in XML format (HRS1209_Xradiograph.xml). 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. JPEG The ZIP file HRS1209_Xradiograph.zip contains 189 JPG and 6 PSD image files. Use WinZip, 7zip, Peazip or pkUnzip 100 https://www.sciencebase.gov/catalog/file/get/6436e630d34ee8d4addcb35f https://www.sciencebase.gov/catalog/item/6436e630d34ee8d4addcb35f https://doi.org/10.5066/P9H74BAX The first link is to download the data in a ZIP file. The second link is to the dataset landing page where files can be downloaded individually. The third link is to the main landing page of the data release. PSD Adobe Photoshop 2023 The ZIP file HRS1209_Xradiograph.zip contains 189 JPG and 6 PSD image files. Use WinZip, 7zip, Peazip or pkUnzip 100 https://www.sciencebase.gov/catalog/file/get/6436e630d34ee8d4addcb35f https://www.sciencebase.gov/catalog/item/6436e630d34ee8d4addcb35f https://doi.org/10.5066/P9H74BAX The first link is to download the data in a ZIP file. The second link is to the dataset landing page where files can be downloaded individually. The third link is to the main landing page of the data release. None 20230605 Allyson A. Boggess U.S. Geological Survey, NORTHEAST REGION Geologist mailing address

384 Woods Hole Road

Woods Hole MA 02543 US 508-548-8700 x2341 508-457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998