Lerbekmo, J. F., Louis, R. M. St. (1986) The terminal Cretaceous iridium anomaly in the Red Deer Valley, Alberta, Canada. Canadian Journal of Earth Sciences, 23 (1) 120-124 doi:10.1139/e86-014
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | The terminal Cretaceous iridium anomaly in the Red Deer Valley, Alberta, Canada | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Lerbekmo, J. F. | Author | |
| Louis, R. M. St. | Author | ||
| Year | 1986 (January 1) | Volume | 23 |
| Issue | 1 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e86-014Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 478846 | Long-form Identifier | mindat:1:5:478846:5 |
| GUID | 0 | ||
| Full Reference | Lerbekmo, J. F., Louis, R. M. St. (1986) The terminal Cretaceous iridium anomaly in the Red Deer Valley, Alberta, Canada. Canadian Journal of Earth Sciences, 23 (1) 120-124 doi:10.1139/e86-014 | ||
| Plain Text | Lerbekmo, J. F., Louis, R. M. St. (1986) The terminal Cretaceous iridium anomaly in the Red Deer Valley, Alberta, Canada. Canadian Journal of Earth Sciences, 23 (1) 120-124 doi:10.1139/e86-014 | ||
| In | (1986, January) Canadian Journal of Earth Sciences Vol. 23 (1) Canadian Science Publishing | ||
| Abstract/Notes | Neutron activation analysis following fire-assay preconcentration in a nickel sulphide button allows processing of relatively large samples (25 g) for precision analysis of platinum group elements. Using this method, an iridium anomaly with maximum concentration of 3.36 ± 0.04 ppb has been located at the Cretaceous–Tertiary boundary at the base of the Nevis coal seam in the Red Deer Valley of Alberta. The iridium anomaly coincides with the disappearance of diagnostic late Cretaceous palynomorphs, including all but one species of Aquilapollenites. | ||
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