Lithogeochemical Character of Near-Surface Bedrock in the New England Coastal Basins
This geographic information system (GIS) data layer shows the generalized
lithologic and geochemical, termed lithogeochemical, character of
near-surface bedrock in the New England Coastal Basins (NECB) study
area of the U.S. Geological Survey's National Water Quality Assessment
(NAWQA) Program. The area encompasses 23,000 square miles in western
and central Maine, eastern Massachusetts, most of Rhode Island,
eastern New Hampshire and a small part of eastern Connecticut.
The NECB study area includes the Kennebec, Androscogginn, Saco,
Merrimack, Charles, and Blackstone River Basins, as well as all
of Cape Cod. Bedrock units in the NECB study area are classified into
38 lithogeochemical units based on the relative reactivity of their
constituent minerals to dissolution and the presence of carbonate or
sulfide minerals. The 38 lithogeochemical units are generalized into 7
major groups: (1) carbonate-bearing metasedimentary rocks; (2)primarily
noncalcareous, clastic sedimentary rocks with restricted deposition in
discrete fault-bounded sedimentary basins of Mississipian or younger age;
(3) primarily noncalcareous, clastic sedimentary rocks at or above
biotite-grade of regional metamorphism; (4) mafic igneous rocks and
their metamorphic equivalents; (5) ultramafic rocks; (6) felsic igneous
rocks and their metamorphic equivalents; and (7) unconsolidated and poorly
consolidated sediments.
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Keith Robinson", "@type": "vcard:Contact", "hasEmail": "mailto:kwrobins@usgs.gov" } |
| description | This geographic information system (GIS) data layer shows the generalized lithologic and geochemical, termed lithogeochemical, character of near-surface bedrock in the New England Coastal Basins (NECB) study area of the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program. The area encompasses 23,000 square miles in western and central Maine, eastern Massachusetts, most of Rhode Island, eastern New Hampshire and a small part of eastern Connecticut. The NECB study area includes the Kennebec, Androscogginn, Saco, Merrimack, Charles, and Blackstone River Basins, as well as all of Cape Cod. Bedrock units in the NECB study area are classified into 38 lithogeochemical units based on the relative reactivity of their constituent minerals to dissolution and the presence of carbonate or sulfide minerals. The 38 lithogeochemical units are generalized into 7 major groups: (1) carbonate-bearing metasedimentary rocks; (2)primarily noncalcareous, clastic sedimentary rocks with restricted deposition in discrete fault-bounded sedimentary basins of Mississipian or younger age; (3) primarily noncalcareous, clastic sedimentary rocks at or above biotite-grade of regional metamorphism; (4) mafic igneous rocks and their metamorphic equivalents; (5) ultramafic rocks; (6) felsic igneous rocks and their metamorphic equivalents; and (7) unconsolidated and poorly consolidated sediments. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P9G0VSQZ", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.148f11d8-5149-417f-a29d-663d2294206c.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_148f11d8-5149-417f-a29d-663d2294206c |
| keyword |
[ "Androscogginn River Basin", "Bedrock", "CONN", "CONN NAWQA study unit", "Charles River Basin", "Connecticut", "Geochemical", "Geology", "Kennebec River Basin", "Lithogeochemical", "Lithology", "Maine", "Massachusetts", "Merrimack River Basin", "Mineral", "NAWQA", "NECB", "NECB NAWQA study unit", "New Hampshire", "Pawcatuck River Basin", "Rhode Island", "Saco River Basin", "Taunton River Basin", "USGS:148f11d8-5149-417f-a29d-663d2294206c", "Water chemistry", "environment", "geoscientificInformation", "inlandWaters" ] |
| modified | 2020-11-17T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -72.19068043, 41.13443365, -69.03158607, 45.90221224 |
| theme |
[ "geospatial" ] |
| title | Lithogeochemical Character of Near-Surface Bedrock in the New England Coastal Basins |
