| Late Pleistocene／Holocene wetland events recorded in southeast Tengger Desert lake sediments, NW China |
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| 作者姓名： | D.B.Madsen CHENFahu Ch.G.Oviatt ZHUYan P.J.Brantinaham R.GoElston R.L.Bettinger |
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| 作者单位： | [1]TexasArcheologicalResearchLaboratory,UniversityofTexas,Austin,TX78712,USA [2]CAEENationalLaboratoryofWesternChina‘sEnvironmentalSystem,LanzhouUniversity,Lanzhou730000,China [3]DepartmentofGeoi0gy,KansasStateUniversity,Kansas,USA [4]DepartmentofAnthropology,UniversityofCalifornia,LosAngels,USA [5]SilverCity,Nevada.USA [6]DepartmentofAnthropology,UniversityofCalifornia,Davis,CA95616,USA |
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| 基金项目： | 美国国家自然科学基金，国家自然科学基金 |
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| 摘 要： | The area along the eastern and southeastern margins of the Tengger Desert, NW China, which is sensitive to the summer monsoon variations, was selected for studying the environmental conditions surrounding the transition between Paleolithic foragers and Neolithic farmer/pastoral-ists. Short cores were obtained from four lake basins in the southwestern Tengger using a hand-driven piston coringdevice. Proxies from these cores were supplemented by ra-diocarbon ages obtained from lake sediment cores, shoreline features and spring mound deposits. Together these records provide evidence of millennial-scale climate change eventsfrom the Pleistocene-Holocene transition to the present.Lake/wetland events, representing periods of more intensive summer monsoon, occur in the records at-12.7-11.6,-10.1, -9.3, -8.0, -5.4, -1.5, and -0.8 ka BP. They do suggest that century- to miliennial-seale climatic cycles are characteristic of the Holocene in the southeastern Tengger Desert although the chronology must be considered extremely tentative.
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| 关 键 词： | 中国西北地区 腾葛尔沙漠 晚更新世 全新世 湖泊沉积物 古气候 |
| 收稿时间： | 6 June 2002 |
Late Pleistocene/Holocene wetland events recorded in southeast Tengger Desert lake sediments,NW China |
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| D.B.Madsen CHENFahu Ch.G.Oviatt ZHUYan P.J.Brantinaham R.GoElston R.L.Bettinger.Late Pleistocene/Holocene wetland events recorded in southeast Tengger Desert lake sediments,NW China[J].Chinese Science Bulletin,2003,48(14):1423-1429. |
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| Authors: | Madsen D B Chen Fahu Oviatt Ch G Zhu Yan Brantingham P J Elston R G Bettinger R L |
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| Institution: | (1) Texas Archeological Research Laboratory, University of Texas, 78712 Austin, TX, USA;(2) CAEP, National Laboratory of Western China’s Environmental System, Lanzhou University, 730000 Lanzhou, China;(3) Department of Geology, Kansas State University, Kansas, USA;(4) Department of Anthropology, University of California, Los Angels, USA;(5) Silver City, Nevada, USA;(6) Department of Anthropology, University of California, 95616 Davis, CA, USA |
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| Abstract: | The area along the eastern and southeastern margins of the Tengger Desert, NW China, which is sensitive to the summer monsoon variations, was selected for studying the environmental conditions surrounding the transition between Paleolithic foragers and Neolithic farmer/pastoral- ists. Short cores were obtained from four lake basins in the southwestern Tengger using a hand-driven piston coring device. Proxies from these cores were supplemented by ra- diocarbon ages obtained from lake sediment cores, shoreline features and spring mound deposits. Together these records provide evidence of millennial-scale climate change events from the Pleistocene-Holocene transition to the present. Lake/wetland events, representing periods of more intensive summer monsoon, occur in the records at ~12.711.6, ~10.1, ~9.3, ~8.0, ~5.4, ~1.5, and ~0.8 ka BP. They do suggest that century- to millennial-scale climatic cycles are characteristic of the Holocene in the southeastern Tengger Desert although the chronology must be considered extremely tentative. |
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| Keywords: | Tengger Desert lake fluctuations Holocene rapid cli- matic change |
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