U-Pb Isotopic Data and Ages of Detrital Zircon Grains and Graptolite Fossil Data from Selected Rocks from the Western Alaska Range, Livengood area, and Seward Peninsula, Alaska - 2018

This data set contains two data sets. One data set is of U-Pb isotopic data and associated ages of detrital zircon grains from 16 sedimentary and metasedimentary rocks from the western Alaska Range, Livengood area and Seward Peninsula, Alaska. Two samples were collected from the York Mountains area of the Seward Peninsula of western Alaska. Three samples were collected from the Livengood quadrangle of central Alaska. Eleven samples were collected from the western Alaska Range of south-central Alaska. Detrital zircon grains from each of the sixteen samples were separated and analyzed by Apatite to Zircon, Inc. (A2Z) and Geosep Services (GSS) laboratories between 2011 and 2014, using laser-ablation-inductively-coupled-plasma-mass spectrometry (LA-ICP-MS) techniques.

The second data set contains fossil identifications and age assignments from a select sedimentary rock from the western Alaska Range of south-central Alaska. Fossils were identified by visual inspection.

All samples were collected as part of geological mapping research conducted between 1984 and 2014 and funded by the Mineral Resources Program of the U.S. Geological Survey.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:ASC197
metadata_type geospatial
modified 20201125
old-spatial -167.7, 61.8, -147.3, 65.7
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 79b9d464710789aeb36901403a244cfe36270420
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-167.7, 61.8], [-167.7, 65.7], [ -147.3, 65.7], [ -147.3, 61.8], [-167.7, 61.8]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • alaska-range
  • amerigeo
  • amerigeoss
  • ckan
  • detrital-zircon
  • earth-science
  • fossils
  • geo
  • geochronology
  • geology
  • geoscientificinformation
  • geoss
  • graptolite
  • land-records
  • livengood
  • macrofossils
  • national
  • north-america
  • ordovician
  • paleoclimate
  • revelation-mountains
  • state-of-alaska
  • terra-cotta-mountains
  • trimokish-hills
  • u-pb
  • united-states
  • uranium-lead-analysis
  • usgs-asc197
  • white-mountains
  • york-mountains
isopen False
license_id notspecified
license_title License not specified
maintainer James V. Jones, III
maintainer_email ascweb@usgs.gov
metadata_created 2025-11-21T01:12:15.138704
metadata_modified 2025-11-21T01:12:15.138708
notes This data set contains two data sets. One data set is of U-Pb isotopic data and associated ages of detrital zircon grains from 16 sedimentary and metasedimentary rocks from the western Alaska Range, Livengood area and Seward Peninsula, Alaska. Two samples were collected from the York Mountains area of the Seward Peninsula of western Alaska. Three samples were collected from the Livengood quadrangle of central Alaska. Eleven samples were collected from the western Alaska Range of south-central Alaska. Detrital zircon grains from each of the sixteen samples were separated and analyzed by Apatite to Zircon, Inc. (A2Z) and Geosep Services (GSS) laboratories between 2011 and 2014, using laser-ablation-inductively-coupled-plasma-mass spectrometry (LA-ICP-MS) techniques. The second data set contains fossil identifications and age assignments from a select sedimentary rock from the western Alaska Range of south-central Alaska. Fossils were identified by visual inspection. All samples were collected as part of geological mapping research conducted between 1984 and 2014 and funded by the Mineral Resources Program of the U.S. Geological Survey.
num_resources 2
num_tags 30
title U-Pb Isotopic Data and Ages of Detrital Zircon Grains and Graptolite Fossil Data from Selected Rocks from the Western Alaska Range, Livengood area, and Seward Peninsula, Alaska - 2018