Dataset Identification:
Resource Abstract:
- 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.; abstract: 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.
Citation
- Title Lithogeochemical Character of Near-Surface Bedrock in the New England Coastal Basins.
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- creation Date
2018-05-20T04:33:16.127694
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T20:26:24Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:26:24Z
Metadata contact
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pointOfContact
- organisation Name
CINERGI Metadata catalog
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- Contact information
-
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- Address
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- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:78ea62e6-0da4-4263-bb28-06baefb6304e
Metadata record format is ISO19139 XML (MD_Metadata)