Data Report: Stable Isotopes from Sites 1147 and 1148

Cheng, Xiaodong; Zhao, Q.; Wang, J.; Jain, Z.; Xia, Pengfei; Huang, Baoqi; Fang, Dufei; Xu, Jin; Zhou, Z. Y.; Wang, P.

doi:10.2973/odp.proc.sr.184.223.2004

Cited by 30 publications

(15 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, noticeable is the very similar trend in both records, as well as in loess accumulation rate in Qinan on the Loess Plateau [6] (Figure 6). All these suggest that the three sites have actually recorded the same signal of Asian inland drying and further confirm the reliability of our modeled results with [46] , dust accumulation rates of QA-I on Loess Plateau from Guo et al [6] , N. dutertrei % at ODP Site 1146 from Wang et al [9] , and benthic δ 18 O at ODP Site 1148 from Cheng et al [63] . The data (fine) were smoothed by a three-point moving average (coarse).…”

Section: Evolution Of the East Asian Monsoonsupporting

confidence: 89%

Grain-size records at ODP site 1146 from the northern South China Sea: Implications on the East Asian monsoon evolution since 20 Ma

Wan

Stuut

et al. 2007

SCI CHINA SER D

View full text Add to dashboard Cite

samples from Ocean Drilling Program (ODP) Site 1146 in the northern South China Sea (SCS)were analyzed for grain-size distributions using grain-size class vs. standard deviation method and end-member modeling algorithm (EMMA) in order to investigate the evolution of the East Asian monsoon since about 20 Ma. 10-19 μm/1.3-2.4 μm, the ratio of two grain-size populations with the highest variability through time was used to indicate East Asian winter monsoon intensity relative to summer monsoon. The mass accumulation rate of the coarsest end member EM1 (eolian), resulting from EMMA, can be used as a proxy of winter monsoon strength and Asian inland aridity, and the ratio of EM1/(EM2+EM3) as a proxy of winter monsoon intensity relative to summer monsoon. The combined proxies show that a profound enhancement of East Asian winter monsoon strength and winter monsoon intensity relative to summer monsoon occurred at about 8 Ma, and it is possible that the summer monsoon simultaneously intensified with winter monsoon at 3 Ma. Our results are well consistent with the previous studies in loess, eolian deposion in the Pacifc, radiolarians and planktonic foraminifera in the SCS. The phased uplift of the Himalaya-Tibetan Plateau may have played a significant role in strengthening the Asian monsoon at 8 Ma and 3 Ma. grain size, eolian dust, East Asian monsoon, South China Sea, ODP Leg184East Asian monsoon circulation is driven by differential heating between the WPWP (western Pacific warm pool) and the Asian continent. Seanally reversing summer-and winter-monsoon winds drive seasonal precipitation and runoff regimes which determine, in part, the soil and vegetation characteristics of eastern Asia [1] . Past fluctuations of the East Asian winter and summer monsoons over long time scales (>1 Ma) have been studied using the loess-paleosol sequences in the Chinese Loess Plateau [2][3][4][5][6] . By comparison, similar studies of deep-sea sediments in the South China Sea (SCS), which is the main sediment sink for fluvial material from the East Asian continent and an ideal location for recording the erosional response to both winter and summer monsoons were hampered by the lack of long sediment cores until six sites were drilled in two areas in the SCS during ODP Leg 184 [7] . Until now, most of the paleoclimatic studies which permit the reconstruction of long-term evolution of the East Asian paleo-monsoon from sediments in the SCS are mainly based on studies of radiolarians [8] , foraminifera [9,10] , stable isotopes [11][12][13] , sediment geochemistry [14] and even broad scale climatic and botanical zones of China [15] . However, evidence of longterm evolution of the East Asian monsoon over tectonic

show abstract

Section: Evolution Of the East Asian Monsoonsupporting

confidence: 89%

Grain-size records at ODP site 1146 from the northern South China Sea: Implications on the East Asian monsoon evolution since 20 Ma

Wan

Stuut

et al. 2007

SCI CHINA SER D

View full text Add to dashboard Cite

show abstract

“…Relatively low hematite/goethite ratios, oxygen isotopes of planktonic foraminifer, and high productivity of radiolarians in the 3.1-2.7, 1.6-0.9, and 0.5 Ma intervals from the ODP Sites 1146-1148 in the South China Sea reflect enhanced chemical weathering and, by inference, monsoon intensification during these time periods ( Fig. 11c; Cheng et al, 2004;Huang et al, 2005;Zhang et al, 2009). Within the Yunnan Plateau, many basins (e.g., Heqing, Yuanmou, Kunming, and Songhua; Fig.…”

Section: A Causal Link To the Indian Monsoonmentioning

confidence: 99%

“…(Singh and Gupta, 2005). (c) Planktonic oxygen isotopes from ODP 1147 and 1148, South China Sea (Cheng et al, 2004). (d) Soil carbonate δ 13 C from Lingtai of the Chinese Loess deposits ; (e) Pollen percentage curve of mesic conifer revealed from the scientific 38 drilling program in the Heqing basin ( Fig.…”

Section: Topographic Evolutionmentioning

confidence: 99%

Geochronology of the Baye Mn oxide deposit, southern Yunnan Plateau: Implications for the late Miocene to Pleistocene paleoclimatic conditions and topographic evolution

Deng

Vasconcelos

et al. 2014

Geochimica et Cosmochimica Acta

View full text Add to dashboard Cite

Please cite this article as: Deng, X-D., Li, J-W., Vasconcelos, P.M., Cohen, B.E., Kusky, T.M., Geochronology of the Baye Mn oxide deposit, southern Yunnan Plateau: implications for the late Miocene to Pleistocene paleoclimatic conditions and topographic evolution, Geochimica et Cosmochimica Acta (2014), doi: http://dx.doi.org/10.1016/ j.gca. 2014.04.036 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

“…Moreover, the comprehensive environmental and tectonic information are integrated in Fig. 4, which shows the ACL, CPI and C 31 /C 27 records since 22 Ma stacked from the NE Tibetan Plateau and their comparison with the South China Sea benthic d 18 O (Cheng et al, 2004), the global stacked d 18 O (Zachos et al, 2001), pCO 2 concentration (Pagani et al, 2010;Beerling and Royer, 2011;Zhang et al, 2013), Pacific dust flux (Rea et al, 1998), major pulsed uplift of Tibetan Plateau (Wan et al, 2010) and mammal fauna (Deng et al, 2013). In detail, The CPI values of all samples from the NE Tibetan Plateau vary from 0.97 to 14.04.…”

Section: Resultsmentioning

confidence: 99%

An integrated biomarker perspective on Neogene–Quaternary climatic evolution in NE Tibetan Plateau: Implications for the Asian aridification

Peng

Song

et al. 2016

Quaternary International

View full text Add to dashboard Cite

Data Report: Stable Isotopes from Sites 1147 and 1148

Cited by 30 publications

References 1 publication

Grain-size records at ODP site 1146 from the northern South China Sea: Implications on the East Asian monsoon evolution since 20 Ma

Grain-size records at ODP site 1146 from the northern South China Sea: Implications on the East Asian monsoon evolution since 20 Ma

Geochronology of the Baye Mn oxide deposit, southern Yunnan Plateau: Implications for the late Miocene to Pleistocene paleoclimatic conditions and topographic evolution

An integrated biomarker perspective on Neogene–Quaternary climatic evolution in NE Tibetan Plateau: Implications for the Asian aridification

Contact Info

Product

Resources

About