Precambrian Basement Structure Map of the Continental United States - An Interpretation of Geologic and Aeromagnetic Data

Sims, Paul K.; Saltus, Richard W.; Anderson, Eric D.

Abstract:

The Precambrian basement rocks of the continental United States are largely covered by younger sedimentary and volcanic rocks, and the availability of updated aeromagnetic data (NAMAG, 2002) provides a means to infer major regional basement structures and tie together the scattered, but locally abundant, geologic information. Precambrian basement structures in the continental United States have strongly influenced later Proterozoic and Phanerozoic tectonism within the continent, and there is a growing awareness of the utility of these structures in deciphering major younger tectonic and related episodes. Interest in the role of basement structures in the evolution of continents has been recently stimulated, particularly by publications of the Geological Society of London (Holdsworth and others, 1998; Holdsworth and others, 2001). These publications, as well as others, stress the importance of reactivation of basement structures in guiding the subsequent evolution of continents. Knowledge of basement structures is an important key to understanding the geology of continental interiors.

Genre:

USGS Numbered Series

ProdID:

85836

Citation Author:

Sims, Paul K.; Saltus, Richard W.; Anderson, Eric D.

Citation Contributing Office:

Geological Survey (U.S.)

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Citation Edition:

Version 1.0

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Citation Language:

ENGLISH

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Citation LatN:

0500000

Citation LatS:

0200000

Citation LonE:

-0600000

Citation LonW:

-1350000

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Citation Phsyical Description:

Map Sheet: 56 x 38 inches; Downloads Directory

Citation Projection:

Universal Transverse Mercator

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Citation Publisher:

Geological Survey (U.S.)

Citation Series:

Scientific Investigations Map

Citation Series Code:

SIM

Citation Series Number:

3012

Citation Search Results Text:

Precambrian Basement Structure Map of the Continental United States - An Interpretation of Geologic and Aeromagnetic Data; 2008; SIM; 3012; Sims, Paul K.; Saltus, Richard W.; Anderson, Eric D.

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Citation Volume:

Citation Year:

2008

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citation/reference

Text:

Precambrian Basement Structure Map of the Continental United States - An Interpretation of Geologic and Aeromagnetic Data; 2008; SIM; 3012; Sims, Paul K.; Saltus, Richard W.; Anderson, Eric D.