Terrestrial Tephra Spectral Library for the Visible-Near-Infrared and Mid-Infrared Spectral Regions

Visible/near-infrared (VNIR) and mid-infrared (MIR) spectral library composed of twenty natural tephra samples from ten volcanic sources that span a range of compositions and components. The bulk, glass, and mineral phase compositions of each sample have been measured and VNIR and MIR spectra from four size fractions of each sample were collected.

Data and Resources

Field Value
accessLevel public
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identifier USGS:6101bd79d34ef8d7055da174
metadata_type geospatial
modified 20220128
old-spatial -124.8490, 24.3963, -66.8854, 49.3844
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 8f549bf1afd2bf0a414eda9ae868e3a50f28f91f
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-124.8490, 24.3963], [-124.8490, 49.3844], [ -66.8854, 49.3844], [ -66.8854, 24.3963], [-124.8490, 24.3963]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • cima
  • ckan
  • crater-flat
  • dunes
  • geo
  • geoscientificinformation
  • geoss
  • heimaey
  • long-valley-caldera
  • mid-infrared
  • mount-pinatubo
  • mount-rainier
  • mount-saint-helens
  • mount-shasta
  • mount-vesuvius
  • national
  • north-america
  • okmok-volcano
  • spectra
  • tephra
  • united-states
  • usgs-6101bd79d34ef8d7055da174
  • visible-near-infrared
  • volcanic
  • volcanic-rock
isopen False
license_id notspecified
license_title License not specified
maintainer CJ Leight
maintainer_email cleight@utk.edu
metadata_created 2025-11-20T11:10:05.801969
metadata_modified 2025-11-20T11:10:05.801974
notes Visible/near-infrared (VNIR) and mid-infrared (MIR) spectral library composed of twenty natural tephra samples from ten volcanic sources that span a range of compositions and components. The bulk, glass, and mineral phase compositions of each sample have been measured and VNIR and MIR spectra from four size fractions of each sample were collected.
num_resources 2
num_tags 27
title Terrestrial Tephra Spectral Library for the Visible-Near-Infrared and Mid-Infrared Spectral Regions