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Open-File Report 01–0364

Crustal Imaging and Characterization Team

PRELIMINARY PRECAMBRIAN BASEMENT MAP OF COLORADO --
A GEOLOGIC INTERPRETATION OF THE AEROMAGNETIC ANOMALY MAP
By
P.K. Sims, Viki Bankey, and C.A. Finn1
2001

Open-File Report 01-364




 
PLATE 1
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PLATE 2
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PrecambrianBasement Map of Colorado
Basement mapshowing geologic-geophysical domains of Colorado over magnetic map

Information on magnetic data processing is given in the original publication by Oshetski and Kucks, 2000.  We reduced these observed magnetic data to the pole, a technique that attempts to account for the inclination of the Earth's magnetic field. Its principal effect is to shift magnetic anomalies to positions directly above their sources.  We used a declination of 11 degrees and inclination of 66 degrees for the entire state in the reduction-to-pole calculation.


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1Denver, Colorado

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code.  Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Page Maintained by Viki Bankey; email: viki@usgs.gov

 
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