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Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 09:07 PM | Dataset Last Updated: January 21, 2021 at 12:00 AM
This dataset accompanies planned publication 'Unmixing multiple metamorphic muscovite age populations with powder X-ran diffraction and 40Ar/39Ar analysis'. The 40Ar/39Ar and electron microprobe data are from samples adjacent to a lower greenschist facies shear zone in western New Hampshire. The geochronology coupled with the electron microprobe data provide a petrochronologic framework for the rocks studied in the manuscript. Samples collection was supervised by Ryan McAleer, Gregory Walsh, and Peter Valley of the USGS.

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