Trace element patterns at a non-marine cretaceous-tertiary boundary
January 1, 1984
At the fossil-pollen-defined Cretaceous-Tertiary boundary in the Raton Basin of New Mexico and Colorado, an iridium abundance anomaly and excess scandium, titanium, and chromium are associated with a thin ash or dust fallout bed (now kaolinitic clay) that was preserved in freshwater coal swamps. ?? 1984 Nature Publishing Group.
Citation Information
| Publication Year | 1984 |
|---|---|
| Title | Trace element patterns at a non-marine cretaceous-tertiary boundary |
| DOI | 10.1038/307224a0 |
| Authors | J. S. Gilmore, J.D. Knight, C. J. Orth, C. L. Pillmore, R.H. Tschudy |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Nature |
| Index ID | 70013392 |
| Record Source | USGS Publications Warehouse |