Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2023-2024

This dataset includes rock magnetic susceptibility and gamma ray spectrometer measurements from 243 outcrops in southwest Montana during 2023-2024. The measurements were collected to understand the causative sources of airborne magnetic and radiometric survey anomalies in the Idaho-Montana porphyry belt. Sixteen magnetic susceptibility measurements were collected at each analyzed site using a ZH Instruments SM30 susceptibility meter. Gamma ray measurements were collected using a Radiation Solutions RS-230 BGO Super-SPEC Handheld Gamma-Ray Spectrometer. Geologic units were assigned from 1:100,000 scale digital geologic maps noted in the supplemental information section of the metadata file.

Data e Risorse

Questo dataset non ha dati

Campo Valore
accessLevel public
bureauCode {010:12}
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catalog_@id https://ddi.doi.gov/usgs-data.json
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-677c44ced34e711d10b7ca7c
metadata_type geospatial
modified 2025-03-04T00:00:00Z
old-spatial -113.2500, 45.4479, -111.5661, 46.5595
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash b7ff5b75f60e298a8bb68c213f0d77d48535367db61ba3013911f57b2d92f746
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-113.2500, 45.4479], [-113.2500, 46.5595], [ -111.5661, 46.5595], [ -111.5661, 45.4479], [-113.2500, 45.4479]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • beaverhead-county
  • broadwater-county
  • butte
  • earth-mapping-resources-initiative
  • earth-mri
  • gamma-ray-spectrometry
  • geology-geophysics-and-geochemistry-science-center
  • geoscientificinformation
  • gggsc
  • helena
  • jefferson-county
  • lewis-and-clark-county
  • madison-county
  • magnetic-susceptibility
  • mineral-resources-program
  • montana
  • mrp
  • potassium
  • powell-county
  • radiometric
  • silver-bow-county
  • thorium
  • u-s-geological-survey
  • united-states-of-america
  • uranium
  • usgs
  • usgs-677c44ced34e711d10b7ca7c
isopen False
license_id notspecified
license_title License not specified
maintainer Benjamin P Magnin
maintainer_email bmagnin@usgs.gov
metadata_created 2025-09-23T18:15:16.267003
metadata_modified 2025-09-23T18:15:16.267009
notes This dataset includes rock magnetic susceptibility and gamma ray spectrometer measurements from 243 outcrops in southwest Montana during 2023-2024. The measurements were collected to understand the causative sources of airborne magnetic and radiometric survey anomalies in the Idaho-Montana porphyry belt. Sixteen magnetic susceptibility measurements were collected at each analyzed site using a ZH Instruments SM30 susceptibility meter. Gamma ray measurements were collected using a Radiation Solutions RS-230 BGO Super-SPEC Handheld Gamma-Ray Spectrometer. Geologic units were assigned from 1:100,000 scale digital geologic maps noted in the supplemental information section of the metadata file.
num_resources 0
num_tags 35
title Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2023-2024