The geologic time classification of the United States Geological Survey compared with other classifications, accompanied by the original definitions of era, period and epoch terms
Bulletin
769
By: Mary Grace Wilmarth
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Abstract
No abstract available.
Suggested Citation
Wilmarth, M.G., 1925, The geologic time classification of the United States Geological Survey compared with other classifications, accompanied by the original definitions of era, period and epoch terms: U.S. Geological Survey Bulletin 769, vi, 138 p., https://doi.org/10.3133/b769.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | The geologic time classification of the United States Geological Survey compared with other classifications, accompanied by the original definitions of era, period and epoch terms |
| Series title | Bulletin |
| Series number | 769 |
| DOI | 10.3133/b769 |
| Year Published | 1925 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | vi, 138 p. |
| Country | United States |