Sediments of Narragansett Bay acquired in 1960 (MCMASTER60 shapefile)

Gravel, sand, silt, and clay contents were determined for samples from Narragansett Bay and the adjacent Rhode Island Shelf. In the Narragansett Bay system, clayey silt and sand-silt-clay are the most abundant sediments. Sand is abundant locally and on the inner shelf. In general, toward the lower passages of the Bay the sediments show a progressive change to coarser textures.

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
datagov_dedupe_retained 20220725150959
identifier USGS:644d04d3-07c5-4fd2-8f42-6dd9271f6d84
metadata_type geospatial
modified 20211116
old-spatial {"type": "Polygon", "coordinates": [[[-71.441700, 41.434000], [-71.441700, 41.766700], [ -71.162000, 41.766700], [ -71.162000, 41.434000], [-71.441700, 41.434000]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 5937725f6cf0d7eb14e5fbf9d703b459a04f2f8c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-71.441700, 41.434000], [-71.441700, 41.766700], [ -71.162000, 41.766700], [ -71.162000, 41.434000], [-71.441700, 41.434000]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • atlantic-ocean
  • ckan
  • clay
  • cmgp
  • coastal-and-marine-geology-program
  • geo
  • geographic-information-system
  • geoscientificinformation
  • geospatial-datasets
  • geoss
  • gis
  • grain-size-analysis
  • gravel
  • greenwich-bay
  • location
  • marine-geology
  • mount-hope-bay
  • narragansett-bay
  • national
  • national-assessment-of-marine-sand-and-gravel-resources
  • navigational-data
  • new-england
  • north-america
  • oceans
  • open-file-report-03-001
  • point-shapefile
  • points
  • providence-ri
  • rhode-island
  • sand
  • sea-floor-characteristics
  • sediment
  • sediment-classification
  • silt
  • surficial-classification
  • texture
  • u-s-east-coast
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-644d04d3-07c5-4fd2-8f42-6dd9271f6d84
  • whsc
  • woods-hole-science-center
isopen False
license_id notspecified
license_title License not specified
maintainer Lawrence J. Poppe
maintainer_email lpoppe@usgs.gov
metadata_created 2025-11-22T18:31:30.388398
metadata_modified 2025-11-22T18:31:30.388402
notes Gravel, sand, silt, and clay contents were determined for samples from Narragansett Bay and the adjacent Rhode Island Shelf. In the Narragansett Bay system, clayey silt and sand-silt-clay are the most abundant sediments. Sand is abundant locally and on the inner shelf. In general, toward the lower passages of the Bay the sediments show a progressive change to coarser textures.
num_resources 2
num_tags 45
title Sediments of Narragansett Bay acquired in 1960 (MCMASTER60 shapefile)