Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil
Oxygen isotope records of stalagmites from China and Oman reveal a weak summer monsoon event, with a double-plunging struc- ture, that started 8.21 ± 0.02 kyr B.P. An identical but antiphased pattern is also evident in two stalagmite records from eastern Brazil, indicating that the South American Su...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Digital Commons @ University of South Florida
2009
|
Subjects: | |
Online Access: | https://digitalcommons.usf.edu/kip_articles/5403 https://doi.org/10.1130/G30126A |
id |
ftusouthflorida:oai:digitalcommons.usf.edu:kip_articles-6402 |
---|---|
record_format |
openpolar |
spelling |
ftusouthflorida:oai:digitalcommons.usf.edu:kip_articles-6402 2023-09-05T13:21:32+02:00 Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil Cheng, Hai Fleitmann, Dominik Edwards, R. Lawrence 2009-11-01T07:00:00Z https://digitalcommons.usf.edu/kip_articles/5403 https://doi.org/10.1130/G30126A unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/kip_articles/5403 https://doi.org/10.1130/G30126A KIP Articles Timing And Structure Of The 8.2 Kyr B.P Δ18o Records Stalagmites China Oman Brazil text 2009 ftusouthflorida https://doi.org/10.1130/G30126A 2023-08-13T16:27:57Z Oxygen isotope records of stalagmites from China and Oman reveal a weak summer monsoon event, with a double-plunging struc- ture, that started 8.21 ± 0.02 kyr B.P. An identical but antiphased pattern is also evident in two stalagmite records from eastern Brazil, indicating that the South American Summer Monsoon was intensi- fied during the 8.2 kyr B.P. event. These records demonstrate that the event was of global extent and synchronous within dating errors of <50 years. In comparison with recent model simulations, it is plau- sible that the 8.2 kyr B.P. event can be tied in changes of the Atlan- tic Meridional Overturning Circulation triggered by a glacial lake draining event. This, in turn, affected North Atlantic climate and lati- tudinal position of the Intertropical Convergence Zone, resulting in the observed low-latitude monsoonal precipitation patterns. Text North Atlantic University of South Florida St. Petersburg: Digital USFSP Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) |
institution |
Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Timing And Structure Of The 8.2 Kyr B.P Δ18o Records Stalagmites China Oman Brazil |
spellingShingle |
Timing And Structure Of The 8.2 Kyr B.P Δ18o Records Stalagmites China Oman Brazil Cheng, Hai Fleitmann, Dominik Edwards, R. Lawrence Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
topic_facet |
Timing And Structure Of The 8.2 Kyr B.P Δ18o Records Stalagmites China Oman Brazil |
description |
Oxygen isotope records of stalagmites from China and Oman reveal a weak summer monsoon event, with a double-plunging struc- ture, that started 8.21 ± 0.02 kyr B.P. An identical but antiphased pattern is also evident in two stalagmite records from eastern Brazil, indicating that the South American Summer Monsoon was intensi- fied during the 8.2 kyr B.P. event. These records demonstrate that the event was of global extent and synchronous within dating errors of <50 years. In comparison with recent model simulations, it is plau- sible that the 8.2 kyr B.P. event can be tied in changes of the Atlan- tic Meridional Overturning Circulation triggered by a glacial lake draining event. This, in turn, affected North Atlantic climate and lati- tudinal position of the Intertropical Convergence Zone, resulting in the observed low-latitude monsoonal precipitation patterns. |
format |
Text |
author |
Cheng, Hai Fleitmann, Dominik Edwards, R. Lawrence |
author_facet |
Cheng, Hai Fleitmann, Dominik Edwards, R. Lawrence |
author_sort |
Cheng, Hai |
title |
Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
title_short |
Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
title_full |
Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
title_fullStr |
Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
title_full_unstemmed |
Timing and structure of the 8.2 kyr B.P. event inferred from δ18 O records of stalagmites from China, Oman, and Brazil |
title_sort |
timing and structure of the 8.2 kyr b.p. event inferred from δ18 o records of stalagmites from china, oman, and brazil |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2009 |
url |
https://digitalcommons.usf.edu/kip_articles/5403 https://doi.org/10.1130/G30126A |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) |
geographic |
Glacial Lake |
geographic_facet |
Glacial Lake |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
KIP Articles |
op_relation |
https://digitalcommons.usf.edu/kip_articles/5403 https://doi.org/10.1130/G30126A |
op_doi |
https://doi.org/10.1130/G30126A |
_version_ |
1776202128291790848 |