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Provisional zircon and monazite uranium-lead geochronology for selected rocks from Vermont

Open-File Report 2011-1309

Prepared in cooperation with the State of Vermont, Vermont Geological Survey
By:
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Abstract

This report presents the results of zircon and monazite uranium-lead (U-Pb) geochronologic analyses of 24 rock samples. The samples in this study were collected from mapped exposures identified while conducting either new, detailed (1:24,000-scale) geologic quadrangle mapping or reconnaissance mapping, both of which were used for compilation of the bedrock geologic map of Vermont. All of the collected samples were judged to be igneous rocks (either intrusive or extrusive) on the basis of field relations and geochemistry. The one exception is the Okemo Quartzite on Ludlow Mountain. These geochronologic data were used to supplement regional correlations between igneous suites on the basis of similar geochemistry and geologic mapping.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Provisional zircon and monazite uranium-lead geochronology for selected rocks from Vermont
Series title:
Open-File Report
Series number:
2011-1309
Year Published:
2011
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Denver Federal Center
Description:
iii, 46 p.
State:
Vermont
Online Only (Y/N):
Y