| summary:
|
Sourced from th National Geochronological Database: Radiometric and fission-track age determinations of geologic materials from the continental US and Alaska |
| accessInformation:
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USGS |
| thumbnail:
|
thumbnail/Geology_GeoChron.png |
| culture:
|
en-US |
| name:
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GeoChron |
| description:
|
From the USGS
Abstract:
Radiometric ages of geological materials by K-Ar, Rb-Sr, Sm-Nd, fission track, and U-Th-Pb dating methods. A revision of DDS-14 correcting locations and providing the data in more convenient formats.
Purpose:
This database is a minor revision of DDS-14, with some corrections. |
| licenseInfo:
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Please refer to the USGS NURE-HSSR geochemical database for more information |
| title:
|
GeoChron |
| tags:
|
["Geochron","age","geology"] |