Are Ir anomalies sufficient and unique indicators for cosmic events?

TitleAre Ir anomalies sufficient and unique indicators for cosmic events?
Publication TypeJournal Article
Year of Publication2001
AuthorsKramar, U, üben, D, Berner, Z, Stinnesbeck, W, Philipp, H, Keller, G
JournalPlanetary and Space Science
Volume49
Issue8
Pagination831 - 837
Date PublishedJan-07-2001
ISSN00320633
Abstract

Ir anomalies are often considered unique indicators for cosmic events. The present paper compares the contents and patterns of platinum group element (PGE) anomalies of magmatic and sedimentary origins with similar anomalies found in the Cretaceous–Tertiary (K/T) boundary impact clay and other PGE enriched layers across the K/T boundary and early Danian (Parvularugoglobigerina eugubina zone) at Beloc, Haiti. This analysis demonstrates that PGE patterns provide more conclusive evidence for the reconstruction of paleoevents than that can be achieved by Ir content alone.  PDF

URLhttp://linkinghub.elsevier.com/retrieve/pii/S0032063301000368
DOI10.1016/S0032-0633(01)00036-8
Short TitlePlanetary and Space Science