Visual description sheets of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA
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.
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.
Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 20230605, Visual description sheets of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA: digital data DOI:10.5066/P9H74BAX, U.S. Geological Survey, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.
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: data release DOI:10.5066/P9H74BAX, U.S. Geological Survey, Reston, VA.
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.
This dataset contains scanned images of hand-written, visual core descriptions of sediment cores collected aboard the Hugh R. Sharp during the 2012 HRS1209 cruise. After collection and splitting, the sediment cores were observed for visual changes grain-size texture, color, lithology, and sedimentary structures. Visual description sheets also contain location information, identifiable macrofossils and shell fragments, and torque gauge measurements for calculating shear strength. The dataset is composed of one PDF file. A list of core IDs and sampling locations for this field activity are listed in "Collection locations of sediment cores from the Currituck Landslide and Baltimore Canyon collected on USGS Field Activity 2012-007-FA" within the greater work.
The data provides a comprehensive understanding of the nature and properties of the sediments found in this geographic location. Visual descriptions of the cores were used as a reference for determining sampling intervals and estimating the depths of major lithologic changes.
Sediment cores were cut into sections on the research vessel and later split in half in the laboratory.
Date: 2019 (process 2 of 3)
Each core was described in the laboratory. The features observed include color (based on the Munsell color chart), overall texture, and presence of shells and other biogenic material. Distinct and indistinct unit boundaries were identified with sedimentological changes. A torque meter was used to measure the vane shear strength of the material, recorded every 10 cm of depth in fine-grained sediment. Shear strength was not measured in sediment coarser than silt.
Person who carried out this activity:
Jason D. Chaytor
U.S. Geological Survey, Northeast Region
384 Woods Hole Road
Woods Hole, MA
508-548-8700 x2351 (voice)
Date: 2020 (process 3 of 3)
Many of the core description sheets were redrawn from the original copy for clarity, neatness, and in cases where the paper was stained with core material. Each description sheet was scanned as a PDF, and then individual pages were combined into one multi-page PDF document for each core.
Person who carried out this activity:
Where are the gaps in the data? What is missing?
Of the 24 cores collected during the Hugh R. Sharp HRS1209 cruise, 13 cores (cores 1-14, excluding core 4) were visually described and documented. Cores chosen for analysis were thought to represent the full range of sediments expected to be encountered.
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.
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.