Beloc, Haiti, revisited: multiple events across the KT boundary in the Caribbean

Details

Serval ID
serval:BIB_69F884CC8B64
Type
Article: article from journal or magazin.
Collection
Publications
Title
Beloc, Haiti, revisited: multiple events across the KT boundary in the Caribbean
Journal
Terra Nova
Author(s)
Stinnesbeck W., Keller G., Adatte T., Stüben D., Kramar U., Berner Z., Desremeaux C., Molière E.
ISSN-L
0954-4879
Publication state
Published
Issued date
1999
Peer-reviewed
Oui
Volume
11
Pages
303-310
Language
english
Abstract
Examination of new expanded K/T boundary sections near Beloc, Haiti,
reveals deposition of a glass spherule-rich deposit (SRD) and two (PGE)
anomalies (one Ir-dominated and one Pd-dominated) during the early
Danian Parvularugoglobigerina eugubina Zone [Pla(l)]. The presence of
the Haiti SRD within the early Danian is interpreted as being due to
reworking. Ir is only slightly elevated within the SRD but forms an
anomaly at the top of the SRD extending into the overlying pelagic
limestones. It is unclear at present whether this Ir anomaly results
from mechanical reworking of an impact at the K/T boundary, or an
additional impact event in the early Danian. The second PGE anomaly
upsection is dominated by Pd and Pt and is more compatible with a
magmatic origin. This suggests a multi-event scenario consistent with
one (and possibly two) impact(s), followed by a PGE-enriched volcanic
event in the Caribbean.
Create date
28/09/2012 10:02
Last modification date
20/08/2019 14:24
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