Distinct climate change synchronous with Heinrich event one, recorded by stable oxygen and carbon isotopic compositions in stalagmites from China

Zhou, Houyun; Zhao, Jian‐xin; Feng, Yuexing; Gagan, Michael K.; Zhou, Guoqing; Yan, Jiaxin

doi:10.1016/j.yqres.2007.11.001

Cited by 54 publications

(61 citation statements)

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“…The LGM and H1 are cold and dry climatic phases in the East Asian summer monsoon regime compared with the LDG and MIS 3 periods which are relatively warm and humid (Liu and Ding, 1998). A detailed description of the geological setting and stalagmite SJ3 is provided in Zhou et al (2008cZhou et al ( , 2009. Because the REY concentrations of SJ3 are very low, the results previously obtained on a Thermo X-Series ICP-MS at the University of Queensland using a low sensitivity mode have relatively large errors (with relative standard deviation as high as 20-30% for some low REY calcite bands) (Zhou et al, 2008b).…”

Section: Methodsmentioning

confidence: 99%

Rare earth element patterns in a Chinese stalagmite controlled by sources and scavenging from karst groundwater

Zhou

Greig

Tang

et al. 2012

Geochimica et Cosmochimica Acta

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Section: Methodsmentioning

confidence: 99%

Rare earth element patterns in a Chinese stalagmite controlled by sources and scavenging from karst groundwater

Zhou

Greig

Tang

et al. 2012

Geochimica et Cosmochimica Acta

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“…This positive relationship can be explained by sudden drops or rises in temperature that lead to increasing or decreasing stalagmite density. During this period temperature changes in high latitudes of the north Atlantic exerted a much stronger influence on the Asian summer monsoon than insolation [43], and temperature change dominated variation in stalagmite density in Wanxiang Cave.…”

Section: Linkage Between Wx42a Density Record and The Asian Monsoonmentioning

confidence: 95%

Implications of stalagmite density for past climate change: An example from stalagmite growth during the last deglaciation from Wanxiang Cave, western Loess Plateau

Zhang

Sang

et al. 2010

Chin. Sci. Bull.

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The density of a stalagmite (WX42A) from Wanxiang Cave, Wudu County, Gansu Province, China, in the western margin of the Asian summer monsoon region, presents regular fluctuations in different deposition periods during the last deglaciation. Over long timescales, high-precision 230 Th dating and high-resolution stalagmite density data indicate that the density-time series between 17644 a BP and 12758 a BP is quite similar to the stalagmite δ 18 O record which reflects Asian monsoon intensity. Strengthening/weakening (lighter/heavier stalagmite δ 18 O values) of the Asian monsoon is accompanied by increase/decrease in stalagmite density. Over short timescales, decrease in stalagmite density correlates to monsoon-retreat events such as the Inter-Allerød Cold Period (IACP), Older Dryas (OD) and Inter-Bølling Cold Period (IBCP). Generally, this kind of decrease in stalagmite density reflects precipitation decrease with weakening of the Asian monsoon, which in turn slows cave dripwater rate and decreases crystal nuclei, leading to enlargement of calcite crystals, weakened biological activity and decreased soil pCO 2 which increases the abundance of impure detrital materials in stalagmites. However, during the period of large amplitude reduction of precipitation and biological activity which resulted from extreme monsoon-retreat events, temperature variation would dominate fluctuation of stalagmite density. For example, stalagmite density increased suddenly when temperature dropped suddenly in the north Atlantic during Heinrich event 1 (H-1). This may be caused by low seepage water temperature, more dissolved calcium carbonate, compact regular crystals forming under higher supersaturation, leading to the stalagmite increased density. Stalagmite density fluctuation sensitively recorded stalagmite growth history and environment, demonstrating that stalagmite density can be used as a proxy for paleoclimatic research. stalagmite density, Asian monsoon, climate change, Wanxiang Cave, monsoon margin Citation:Zhang D Z, Zhang P Z, Sang W C, et al. Implications of stalagmite density for past climate change: An example from stalagmite growth during the last deglaciation from Wanxiang Cave, western Loess Plateau.

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“…1). Oxygen isotope reconstructions from the East Asian monsoon (EAM) region demonstrate an anti-correlation with Greenland ice core records (Wang et al, 2001;Wang et al, 2008;Zhou et al, 2008). In China, enriched δ 18 O calcite values (δ in permil units, ‰, of the subscripted value relative to a known standard) coincident with H events have been interpreted as a weakening of the EAM (Wang et al, 2001).…”

Section: Heinrich Event Expression In δ 18 O Recordsmentioning

confidence: 99%

“…Chinese speleothem δ 18 O variability is commonly interpreted as primarily controlled by rainfall seasonality and changes in the intensity of the summer season rainfall (Wang et al, 2001(Wang et al, , 2008Zhou et al, 2008), analogous to the Type-4 category. Local amount effect changes are considered to be a secondary driver of δ 18 O p (Wang et al, 2001;Zhou et al, 2008).…”

Section: Chinamentioning

confidence: 99%

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Water vapour source impacts on oxygen isotope variability in tropical precipitation during Heinrich events

et al. 2010

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Abstract.Water isotope records such as speleothems provide extensive evidence of past tropical hydrological changes. During Heinrich events, isotopic changes in monsoon regions have been interpreted as implying a widespread drying through the Northern Hemisphere tropics and an antiphased precipitation response in the south. Here, we examine the sources of this variability using a water isotope-enabled general circulation model, Goddard Institute for Space Studies ModelE. We incorporate a new suite of vapour source distribution tracers to help constrain the impact of precipitation source region changes on the isotopic composition of precipitation and to identify nonlocal amount effects. We simulate a collapse of the North Atlantic meridional overturning circulation with a large freshwater input to the region as an idealised analogue to iceberg discharge during Heinrich events. An increase in monsoon intensity, defined by vertical wind shear, is modelled over the South American domain, with small decreases simulated over Asia. Simulated isotopic anomalies agree well with proxy climate records, with lighter isotopic values simulated over South America and enriched values across East Asia. For this particular abrupt climate event, we identify which climatic change is most likely linked to water isotope change -changes in local precipitation amount, monsoon intensity, water vapour source distributions or precipitation seasonality. We categorise individual sites according to the climate variability that water isotope changes are most closely associated with, and find that the dominant isotopic controls are not consistent across the tropics -simple local explanations, in particular, fall short of explaining water isotope variability at all sites. Instead, the best interpretations appear to be site specific and often regional in scale.

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Distinct climate change synchronous with Heinrich event one, recorded by stable oxygen and carbon isotopic compositions in stalagmites from China

Cited by 54 publications

References 50 publications

Rare earth element patterns in a Chinese stalagmite controlled by sources and scavenging from karst groundwater

Rare earth element patterns in a Chinese stalagmite controlled by sources and scavenging from karst groundwater

Implications of stalagmite density for past climate change: An example from stalagmite growth during the last deglaciation from Wanxiang Cave, western Loess Plateau

Water vapour source impacts on oxygen isotope variability in tropical precipitation during Heinrich events

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