Zircon U-Pb age data, Ray Mountains area, Bettles Quadrangle, Alaska

U-Pb analyses were performed on igneous rocks from the Ray Mountains area of west-central Alaska. These new age analyses will allow us to better evaluate the geochronology of the granitic rocks that are the apparent source of the alluvial REE and tin resources. The plutonic samples have ages ranging from 98.0 +/- 0.9 Ma to 111.6 +/- 1.0 Ma. The sample location coordinates and analytical data tables associated with this report are available in digital format as comma-separated value (CSV) files.

Data and Resources

Field Value
access_constraints ["Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.", "Access Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below)."]
bbox-east-long -150.047000
bbox-north-lat 66.511910
bbox-south-lat 66.054390
bbox-west-long -150.502600
contact-email dggsgis@alaska.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2016-01-01"}]
frequency-of-update notPlanned
licence ["The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product."]
metadata-date 2016-05-12
metadata-language eng; USA
metadata_type geospatial
progress completed
resource-type dataset
responsible-party [{"name": "Alaska Division of Geological & Geophysical Surveys", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-150.5026, 66.05439], [-150.047, 66.05439], [-150.047, 66.51191], [-150.5026, 66.51191], [-150.5026, 66.05439]]]}
spatial_harvester true
temporal-extent-begin 2012-01-01
temporal-extent-end 2016-01-01
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • age-dates
  • amerigeo
  • amerigeoss
  • analyses
  • analyses-and-sampling
  • analytical-lab-results
  • analytical-results
  • bedrock
  • bedrock-geology
  • bettles-quadrangle
  • ckan
  • cretaceous
  • geo
  • geochronology
  • geology
  • geoss
  • hot-springs-pluton
  • igneous-rocks
  • kanuti-pluton
  • lab-methods
  • metals
  • mineral-assessment
  • mineral-deposit
  • mineral-resources
  • minerals
  • national
  • no-name-creek-pluton
  • north-america
  • plutonic
  • polymetallic
  • rare-earth-elements
  • ray-mountains
  • ray-river-pluton
  • sample-location
  • strategic-and-critical-minerals-assessment-project
  • tin
  • u-pb
  • united-states
  • zircon
isopen False
metadata_created 2025-11-20T07:14:57.473382
metadata_modified 2025-11-20T07:14:57.473386
notes U-Pb analyses were performed on igneous rocks from the Ray Mountains area of west-central Alaska. These new age analyses will allow us to better evaluate the geochronology of the granitic rocks that are the apparent source of the alluvial REE and tin resources. The plutonic samples have ages ranging from 98.0 +/- 0.9 Ma to 111.6 +/- 1.0 Ma. The sample location coordinates and analytical data tables associated with this report are available in digital format as comma-separated value (CSV) files.
num_resources 4
num_tags 39
title Zircon U-Pb age data, Ray Mountains area, Bettles Quadrangle, Alaska