Mineral Resources On-Line Spatial Data: geochronology

Mineral Resources On-Line Spatial Data

Geochronology

Study of the age of the earth by dating geological formations, rocks, and fossils.

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Results 1 - 4 of 4 listed by similarity [list alphabetically]

Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan mountains, Colorado [New Window]: New age determinations with descriptions of sample locations and analytical details.
Isotopic ages of rocks in the northern Front Range, Colorado [New Window]: Maps, tables, and GIS data for isotopic ages determined in the northern part of the study area.
K/Ar ages of materials in the US [New Window]: A subset of the National Geochemical Database (as of 1995). Shows the distribution of published K/Ar and Ar/Ar age determinations in the US. Sample location, rock description, analytical data, age, interpretation, and bibliographic reference are given.
Radiometric ages of rocks from Alaska [New Window]: Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.