Reserachers tackle the hot topic of whether to define a new 'Anthropocene' epoch as a formal unit of the geologic time scale. In the March-April issue of GSA Today, Stanley Finney (California State ...
Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in ...
The next step to improve the Geological Time Scale is to provide an astronomical calibration of the Paleogene period that covers the past 23-65.5 Myr. This will require both an extension of ...
NH copy Purchased from the Cullman Endowment. V. 1. The chronostratigraphic scale / F.M. Gradstein and J.G. Ogg -- Biochronology / F.M. Gradstein -- Cyclostratigraphy and astrochronology / L.A. Hinnov ...
During this time, collection visits will be available by appointment and other special access requests will be considered on a case-by-case basis. Please email cumuseum@colorado.edu for more ...
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