DATA RELEASE Part 2: Optical luminescence dating of Bradley Lake, Oregon, tsunami deposits, analytical data for: A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis

The following report summarizes the dating results from Bradley Lake, Oregon. Within this report, we detail the methodology used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and datingrelated calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report. This version supersedes all previous age estimates and reports.

Data and Resources

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identifier USGS:606e3016d34ef99870162d32
metadata_type geospatial
modified 20210521
old-spatial -124.4272, 43.0655, -124.4272, 43.0655
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
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theme {geospatial}
Groups
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  • National Provider
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  • amerigeo
  • amerigeoss
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  • ckan
  • geo
  • geochronology
  • geoss
  • luminescence-dating
  • national
  • north-america
  • north-olympic-fault-zone
  • optically-stimulated-luminescence
  • oregon
  • radiation-dosimetry
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  • southern-cascadia-subduction-zone
  • united-states
  • usgs-606e3016d34ef99870162d32
isopen False
license_id notspecified
license_title License not specified
maintainer Shannon Mahan
maintainer_email smahan@usgs.gov
metadata_created 2025-11-21T16:50:26.867707
metadata_modified 2025-11-21T16:50:26.867710
notes The following report summarizes the dating results from Bradley Lake, Oregon. Within this report, we detail the methodology used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and datingrelated calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report. This version supersedes all previous age estimates and reports.
num_resources 2
num_tags 19
title DATA RELEASE Part 2: Optical luminescence dating of Bradley Lake, Oregon, tsunami deposits, analytical data for: A maximum rupture model for the central and southern Cascadia subduction zone—reassessing ages for coastal evidence of megathrust earthquakes and tsunamis