noaa-cave-11819
Moaning Cave, California 16 - 8 KYrBP Stable Isotope Data
Oster, J.L.; Montañez, I.P.; Sharp, W.D.; Cooper, K.M.
Moaning Cave, California 16 - 8 KYrBP Stable Isotope Data
2011-07-14
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11819
Investigator
J.L.
Oster
Investigator
I.P.
Montañez
Investigator
W.D.
Sharp
Investigator
K.M.
Cooper
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil PDB,null,speleothems,corrected,isotope ratio mass spectrometry,N,corrected for ice volume
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 13C,calcium carbonate,null,per mil PDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
speleothems
carbon isotopes
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
16340 cal yr BP
8770 cal yr BP
Complete
38.0717
38.0717
-120.4655
-120.4655
520
520
Continent
North America
United States Of America
California
Moaning Cave>LATITUDE 38.0717>LONGITUDE -120.4655
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
Oster, J.L., I.P. Montañez, W.D. Sharp, and K.M. Cooper. 2009.
Late Pleistocene California droughts during deglaciation
and Arctic warming.
Earth and Planetary Science Letters, Vol. 288, Issues 3-4,
pp. 434 - 443, 15 November 2009. doi:10.1016/j.epsl.2009.10.003
Recent studies document the synchronous nature of shifts in North
Atlantic regional climate, the intensity of the East Asian monsoon,
and productivity and precipitation in the Cariaco Basin during the
last glacial and deglacial period. Yet questions remain as to what
climate mechanisms influenced continental regions far removed from
the North Atlantic and beyond the direct influence of the
inter-tropical convergence zone. Here, we present U-series
calibrated stable isotopic and trace element time series for a
speleothem from Moaning Cave on the western slope of the central
Sierra Nevada, California that documents changes in precipitation
that are approximately coeval with Greenland temperature changes
for the period 16.5 to 8.8 ka.
From 16.5 to 10.6 ka, the Moaning Cave stalagmite proxies record
drier and possibly warmer conditions, signified by elevated d18O,
d13C, [Mg], [Sr], and [Ba] and more radiogenic 87Sr/86Sr, during
Northern Hemisphere warm periods (Bølling, early and late Allerød)
and wetter and possibly colder conditions during Northern Hemisphere
cool periods (Older Dryas, Inter-Allerød Cold Period, and Younger
Dryas). Moaning Cave stable isotope records indicate that wet
conditions persisted in this area well beyond 11.5 ka, suggesting
the effects of the Younger Dryas event may have been longer lived
in the western Sierra Nevada than in Greenland. However, a shifting
drip center and corresponding change in seepage water routing may
have influenced the trace element records between 10.6 and 9.6 ka.
Linkages between northern high-latitude climate and precipitation
in the Sierra Nevada suggested here could indicate that, under
conditions of continued global warming, this drought-prone region
may experience a reduction in Pacific-sourced moisture.
STUDY NOTES: Stable oxygen and carbon isotope data from a U-series dated
stalagmite from Moaning Cave, Sierra Nevada foothills, California.
Oxygen isotope data has been corrected for variations in seawater
delta 18O with sea level using Fleming et al., 1998.
Both oxygen and carbon isotope records display shifts that are
approximately coeval with changes in Greenland temperature
between 8.7 and 16.5 ka.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/california/moaning2009.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/california/moaning2009.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11