| SPELEOTHEMS |
Cheng et al. 2006 Hulu Cave Stalagmite Penultimate Glacial d18O Data
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Cheng, H.;Edwards, R.L.;Wang, Y.;Kong, X.;Ming, Y.;Kelly, M.J.;Wang, X.;Gallup, C.D.;Liu, W. 2006 A penultimate glacial monsoon
record from Hulu Cave and two-phase glacial terminations Geology Vol. 34, Issue 3, pp. 217 - 220, March 2006.
| Data Coverage |
North: 32.5 * South: 32.5 |
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West: 119.16 * East: 119.16 |
Start Year: -176100 AD
End Year: -126080 AD
Data: Please Cite Data Contributors!
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Summary: Oxygen isotope records of three stalagmites from Hulu Cave,
China, extend the previous high-resolution absolute-dated Hulu
Asian Monsoon record from the last to the penultimate glacial and
deglacial periods. The penultimate glacial monsoon broadly follows
orbitally induced insolation variations and is punctuated by at
least 16 millennial-scale events. We confirm a Weak Monsoon Interval
between 135.5±1.0 and 129.0±1.0 ka, prior to the abrupt
increase in monsoon intensity at Asian Monsoon Termination II.
Based on correlations with both marine ice-rafted debris and
atmospheric CH4 records, we demonstrate that most of marine
Termination II, the full rise in Antarctic temperature and
atmospheric CO2, and much of the rise in CH4 occurred within
the Weak Monsoon Interval, when the high northern latitudes were
probably cold. From these relationships and similar relationships
observed for Termination I, we identify a two-phase glacial
termination process that was probably driven by orbital forcing
in both hemispheres, affecting the atmospheric hydrological cycle,
and combined with ice sheet dynamics.
More Info on Speleothems |
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Complete XML Record: noaa-cave-5440
(Last Revised: 2007-10-18 )
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