Dataset description: Properties of sediment collected throughout the strategic placement of dredge material in south San Francisco Bay, California, 2023-2025

Bed sediment samples were collected from several sites within south San Francisco Bay, California, USA. Stations sampled were located within or adjacent to an area defined for strategic sediment placement. These stations were more specifically located either near instrumented stations where time-series data were collected, on/near a mound of placed sediment, or in a channel adjacent to an instrumented station. Time-series data are provided on the home page for this data release. Sediment samples were collected by ship-side push core sampling or subsampling a Gomex box corer with push cores. Push cores, which ranged in total length from 6 to 16 centimeters (cm), were sectioned by depth. The uppermost six sections from each core were 1 cm thick, and the following sections were 2 cm thick. Samples were analyzed for sediment properties including bulk density, particle size distribution, and percent carbon.

Version	1
Keywords	sea-floor characteristics, sediment transport, sediment transport, unconsolidated deposits, carbon, bulk density, push coring, grab sampling, grain-size analysis
Data types	Geology
Format	comma-delimited text;
Amount	6 GB

Contacts

Contact	Samantha C McGill PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P14D723N/ https://doi.org/10.5066/P14D723N
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P14D723N/DMP23_sediment_properties_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2023-655-FA	Push corer Core inserted into the sediment 'by hand'
2023-655-FA	Gomex Core