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Seawater strontium isotopes, oceanic anoxic events, and seafloor hydrothermal activity in the Jurassic and Cretaceous

Abstract:

There were three negative seawater strontium-isotope excursions (shifts to lower 87Sr/86Sr values) during the Jurassic and Cretaceous that were of relatively short duration (5-13 my) and showed a relatively quick recovery to pre-excursion 87Sr/86Sr ratios. These excursions occurred in the Pliensbachian-Toarcian (Early Jurassic), Aptian-Albian, and Cenomanian-Santonian (Early and Late Cretaceous respectively). Each excursion coincided closely in time with an Oceanic Anoxic Event (OAE) marked b...

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Publication status:
Published

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Publisher copy:
10.2475/ajs.301.2.112

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
AMERICAN JOURNAL OF SCIENCE
Volume:
301
Issue:
2
Pages:
112-149
Publication date:
2001-02-01
DOI:
ISSN:
0002-9599
Source identifiers:
82092
Language:
English
Pubs id:
pubs:82092
UUID:
uuid:ccde1143-d1b6-49ae-8c99-cb22967fe074
Local pid:
pubs:82092
Deposit date:
2012-12-19

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