A new Geologic Time Scale, with special reference to Precambrian and Neogene

2004/06/01 by Felix M. Gradstein, James G. Ogg, Alan G. Smith +2 · 13 citations
Computer Science · #Geochemistry and Geologic Mapping

paper · pdf · doi:10.18814/epiiugs/2004/v27i2/002

openalex publication_date 2004/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A Geologic Time Scale (GTS2004) is presented that integrates currently available stratigraphic and geochronologic information. Key features of the new scale are outlined, how it was constructed, and how it can be further improved. The accompanying International Stratigraphic Chart, issued under auspices of the International Commission on Stratigraphy (ICS), shows the current chronostratigraphic scale and ages with estimates of uncertainty for all stage boundaries. Special reference is made to the Precambrian part of the time scale, which is coming of age in terms of detail, and to the Neogene portion, which has attained an ultra-high-precision absolute-age calibration.

Citations

• An alternative astronomical calibration of the lower Pleistocene timescale based on ODP Site 677
• Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present
• A Revised Geological Time-Scale

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