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Precise timing of abrupt increase in dust activity in the Middle East coincident with 4.2 ka social change

Abstract:

The extent to which climate change causes significant societal disruption remains controversial. An important example is the decline of the Akkadian Empire in northern Mesopotamia ∼4.2 ka, for which the existence of a coincident climate event is still uncertain. Here we present an Iranian stalagmite record spanning 5.2 ka to 3.7 ka, dated with 25 U/Th ages that provide an average age uncertainty of 31 y (1σ). We find two periods of increased Mg/Ca, beginning abruptly at 4.51 and 4.26 ka, and ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1073/pnas.1808103115

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
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Publisher:
National Academy of Sciences Publisher's website
Journal:
Proceedings of the National Academy of Sciences Journal website
Volume:
116
Issue:
1
Pages:
67-72
Publication date:
2018-12-24
Acceptance date:
2018-11-20
DOI:
EISSN:
1091-6490
ISSN:
0027-8424
Pubs id:
pubs:949745
URN:
uri:8ce31c7d-f307-4919-911c-313034d6349a
UUID:
uuid:8ce31c7d-f307-4919-911c-313034d6349a
Local pid:
pubs:949745

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