Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2012-16.

This dataset includes mercury and other constituent concentration and physical properties data for seven deep sediment profiles (ranging from 79 cm to 214 cm in length) collected from the thalwag of Alviso Slough, a major tributary to South San Francisco Bay (California, USA). Field sampling occurred during May 2012 (4 sites) and January 2016 (3 sites). Each profile was comprised of 1–4 core sub-sections, which were collected from adjacent boreholes with 10–18 cm of vertical overlap.
This data product includes two data tables (*.csv): 1) ‘T1_ALSL_DC_Sed_Data.csv’, the deep core analytical results; 2) ‘T2_ALSL_DC_QA_Data.csv’, quality assurance data. The two image files, ‘ALSL_DC_Log_2012.pdf’ and ‘ALSL-DC_Log_2016.pdf’, provide photography of the 23 split core sections and complimentary multi-sensor core logger gamma density and magnetic susceptibility scans. The geospatial file, ‘ALSL_DC_2012_2016.kmz’, allows for the mapping of the sampling site locations in Google Earth.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5a0b14b3e4b09af898cb6e8d
metadata_type geospatial
modified 20200831
old-spatial -122.02136, 37.42274, -121.97513, 37.46132
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 790de6d17c56fd453ac7eb26296b3b4112c90877
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-122.02136, 37.42274], [-122.02136, 37.46132], [ -121.97513, 37.46132], [ -121.97513, 37.42274], [-122.02136, 37.42274]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • alviso-slough
  • amerigeo
  • amerigeoss
  • biogeochemistry
  • ckan
  • environment
  • geo
  • geoscientificinformation
  • geoss
  • mercury
  • national
  • north-america
  • san-francisco-bay
  • sediment-cores
  • slough
  • south-bay-salt-ponds
  • united-states
  • usgs-5a0b14b3e4b09af898cb6e8d
  • wetland-restoration
isopen False
license_id notspecified
license_title License not specified
maintainer Mark C Marvin-DiPasquale
maintainer_email mmarvin@usgs.gov
metadata_created 2025-11-21T13:41:02.468436
metadata_modified 2025-11-21T13:41:02.468440
notes This dataset includes mercury and other constituent concentration and physical properties data for seven deep sediment profiles (ranging from 79 cm to 214 cm in length) collected from the thalwag of Alviso Slough, a major tributary to South San Francisco Bay (California, USA). Field sampling occurred during May 2012 (4 sites) and January 2016 (3 sites). Each profile was comprised of 1–4 core sub-sections, which were collected from adjacent boreholes with 10–18 cm of vertical overlap. This data product includes two data tables (*.csv): 1) ‘T1_ALSL_DC_Sed_Data.csv’, the deep core analytical results; 2) ‘T2_ALSL_DC_QA_Data.csv’, quality assurance data. The two image files, ‘ALSL_DC_Log_2012.pdf’ and ‘ALSL-DC_Log_2016.pdf’, provide photography of the 23 split core sections and complimentary multi-sensor core logger gamma density and magnetic susceptibility scans. The geospatial file, ‘ALSL_DC_2012_2016.kmz’, allows for the mapping of the sampling site locations in Google Earth.
num_resources 2
num_tags 19
title Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2012-16.