| Abstract: | Three new fission-track (zircon) and four new K-Ar (biotite) dates corroborate a late Oligocene-early Miocene age (22-28 Ma) for the Salla Beds of Bolivia. These ages contrast markedly with the previously accepted age of about 35 Ma for these strata and their contained faunas, and recasts of order and chronology of interchange between New World and Old World mammals. -Authors |
| Genre: | Article |
| ProdID: | 70014103 |
| Citation Author: | Naeser, C. W.; McKee, E. H.; Johnson, N. M.; Macfadden, B. J. |
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| Citation End Page: | 828 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Geology |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.; 1987; Article; Journal; Journal of Geology; Naeser, C. W.; McKee, E. H.; Johnson, N. M.; Macfadden, B. J. |
| Citation Start Page: | 825 |
| Citation Volume: | 95 |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.; 1987; Article; Journal; Journal of Geology; Naeser, C. W.; McKee, E. H.; Johnson, N. M.; Macfadden, B. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1987 00:00 -0600 |
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