Trace element patterns at a non-marine cretaceous-tertiary boundary
Nature
By: J. S. Gilmore, J.D. Knight, C. J. Orth, C. L. Pillmore, and R.H. Tschudy
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Abstract
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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Trace element patterns at a non-marine cretaceous-tertiary boundary |
| Series title | Nature |
| DOI | 10.1038/307224a0 |
| Volume | 307 |
| Issue | 5948 |
| Year Published | 1984 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Nature |
| First page | 224 |
| Last page | 228 |