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Petrography and high-resolution geochemical records of Lower Jurassic manganese-rich deposits from Monte Mangart, Julian Alps

Abstract:

Deposits with unusually high Mn contents sampled at Monte Mangart in the Julian Alps include organic-rich marlstone and black shale with interbedded manganoan and siliceous limestone, which were deposited during the early Toarician Oceanic Anoxic Event. Mn enrichment during that period has been related to global sea-level change coincident with increasing subsistence rate. The formation of Fe-Mn nodules, marking a hardground at the base of the Monte Mangart section, seems to be triggered by r...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
Università di Palermo, Italy
Department:
Dipartimento di Chimica e Fisica della Terra
Role:
Author
More by this author
Institution:
Università di Palermo, Italy
Department:
Dipartimento di Chimica e Fisica della Terra
Role:
Author
More by this author
Institution:
Università di Palermo, Italy
Department:
Dipartimento di Chimica e Fisica della Terra
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
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Institution:
Università di Ferrara, Italy
Department:
Dipartimento di Scienze della Terra
Role:
Author
Publisher:
Elsevier Publisher's website
Journal:
Palaeogeography, Palaeoclimatology, Palaeoecology Journal website
Volume:
299
Issue:
1-2
Pages:
97-109
Publication date:
2011-01-01
DOI:
ISSN:
0031-0182
Language:
English
Keywords:
Subjects:
UUID:
uuid:3bd9cd6f-6de8-427d-ae46-36cb89b2acbe
Local pid:
ora:4824
Deposit date:
2011-01-18

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