noaa-cave-9957
8.2k Event Speleothem Oxygen Isotope Data
Cheng, H.; Fleitmann, D.; Edwards, R.L.; Wang, X.; Cruz, F.W.; Auler, A.S.; Mangini, A.; Wang, Y.; Kong, X.; Burns, S.J.; Matter, A.
8.2k Event Speleothem Oxygen Isotope Data
2010-07-21
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9957
Investigator
H.
Cheng
Investigator
D.
Fleitmann
Investigator
R.L.
Edwards
Investigator
X.
Wang
Investigator
F.W.
Cruz
Investigator
A.S.
Auler
Investigator
A.
Mangini
Investigator
Y.
Wang
Investigator
X.
Kong
Investigator
S.J.
Burns
Investigator
A.
Matter
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
Intertropical Convergence Zone (ITCZ)
Meridional Overturning Circulation (MOC)
Monsoon
abrupt climate change
8566 cal yr BP
7678 cal yr BP
Complete
-13.2167
25.28
-44.05
108.08
650
800
Continent
South America
Brazil
Paixão Cave>LATITUDE -12.65>LONGITUDE -41.05
Continent
Asia
Western Asia
Middle East
Oman
Hoti Cave>LATITUDE 23.08>LONGITUDE 57.35
Continent
Asia
Eastern Asia
China
Dongge Cave>LATITUDE 25.28>LONGITUDE 108.08
Continent
Asia
Western Asia
Middle East
Oman
Qunf Cave>LATITUDE 17.17>LONGITUDE 54.3
Continent
South America
Brazil
Padre Cave>LATITUDE -13.2167>LONGITUDE -44.05
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Cheng, H., D. Fleitmann, R.L. Edwards, X. Wang, F.W. Cruz, A.S. Auler,
A. Mangini, Y. Wang, X. Kong, S.J. Burns, and A. Matter. 2009.
Timing and structure of the 8.2 kyr B.P. event inferred from d18O
records of stalagmites from China, Oman, and Brazil.
Geology, Vol. 37, No. 11, pp. 1007–1010, November 2009.
doi: 10.1130/G30126A.1
Oxygen isotope records of stalagmites from China and Oman reveal
a weak summer monsoon event, with a double-plunging structure,
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
intensified 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 plausible that the 8.2 kyr B.P. event can be tied in changes
of the Atlantic Meridional Overturning Circulation triggered by a
glacial lake draining event. This, in turn, affected North Atlantic
climate and latitudinal position of the Intertropical Convergence Zone,
resulting in the observed low-latitude monsoonal precipitation patterns.
STUDY NOTES: Oxygen isotope data from six stalagmites in China, the Middle East,
and South America over the 8.2k Climate Event. The stalagmites are
from Dongge Cave, southern China (D4 and DA, 25°17'N, 108°5'E),
Qunf Cave, Oman (Q5, 17°10'N, 54°18'E), Hoti Cave, Oman (H14, 23°05'N,
57°21'E), Padre Cave (PAD07, 13°13'S, 44°3'W), eastern Brazil,
and Paixão Cave (PX5, 12°39'S, 41°3'W), eastern Brazil
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt
USA/NOAA
DIF
Version 9.8.4
2019-02-01
2019-02-01