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

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.

Data and Resources

Field Value
accessLevel public
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identifier USGS:60099c53d34e162231fb2265
metadata_type geospatial
modified 20210121
old-spatial {"type": "Polygon", "coordinates": [[[-72.4, 43.3], [-72.4, 43.5], [ -72.2, 43.5], [ -72.2, 43.3], [-72.4, 43.3]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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source_hash 51c99ce7f9d4add5f58878bca5b63fb163ac99a3
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theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 40ar-39ar
  • amerigeo
  • amerigeoss
  • ckan
  • claremont-new-hampshire
  • fbgc
  • florence-bascom-geoscience-center
  • geo
  • geochronology
  • geoscientificinformation
  • geoss
  • mass-spectroscopy
  • national
  • national-cooperative-geologic-mapping-program
  • ncgmp
  • new-hampshire
  • north-america
  • petrochronology
  • radiometric-dating
  • reston-argon-geochronology-laboratory
  • reston-electron-microbeam-laboratory
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-60099c53d34e162231fb2265
isopen False
license_id notspecified
license_title License not specified
maintainer Ryan McAleer
maintainer_email rmcaleer@usgs.gov
metadata_created 2025-11-20T16:07:28.869463
metadata_modified 2025-11-20T16:07:28.869468
notes 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.
num_resources 2
num_tags 25
title Electron microprobe and 40Ar/39Ar isotopic data from west-central New Hampshire