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U-Pb zircon dating evidence for a Pleistocene Sarasvati River and capture of the Yamuna River
Clift, PD; Carter, A; Giosan, L; Durcan, J; Duller, GAT; Macklin, MG; Alizai, A; Tabrez, AR; Danish, M; VanLaningham, S; Fuller, DQ
2012
发表期刊GEOLOGY
ISSN0091-7613
卷号40期号:3页码:211-214
摘要The Harappan Culture, one of the oldest known urban civilizations, thrived on the northwest edge of the Thar Desert (India and Pakistan) between 3200 and 1900 BCE. Its demise has been linked to rapid weakening of the summer monsoon at this time, yet reorganization of rivers may also have played a role. We sampled subsurface channel sand bodies predating ca. 4.0 ka and used U-Pb dating of zircon sand grains to constrain their provenance through comparison with the established character of modern river sands. Samples from close to archaeological sites to the north of the desert show little affinity with the Ghaggar-Hakra, the presumed source of the channels. Instead, we see at least two groups of sediments, showing similarities both to the Beas River in the west and to the Yamuna and Sutlej Rivers in the east. The channels were active until after 4.5 ka and were covered by dunes before 1.4 ka, although loss of the Yamuna from the Indus likely occurred as early as 49 ka and no later than 10 ka. Capture of the Yamuna to the east and the Sutlej to the north rerouted water away from the area of the Harappan centers, but this change significantly predated their final collapse.
部门归属[Clift, Peter D.] Univ Aberdeen, Sch Geosci, Aberdeen AB24 3UE, Scotland; [Clift, Peter D.] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Carter, Andrew] Univ London Birkbeck Coll, Dept Earth & Planetary Sci, London WC1E 7HX, England; [Giosan, Liviu] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA; [Durcan, Julie; Duller, Geoff A. T.; Macklin, Mark G.] Aberystwyth Univ, Inst Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales; [Alizai, Anwar] Geol Survey Pakistan, Karachi, Pakistan; [Tabrez, Ali R.; Danish, Mohammed] Natl Inst Oceanog, Karachi 75600, Pakistan; [VanLaningham, Sam] Univ Alaska, Sch Fisheries & Ocean Sci, Fairbanks, AK 99775 USA; [Fuller, Dorian Q.] UCL, Inst Archaeol, London WC1H 0PY, England
学科领域Geology
语种英语
资助项目海洋地质
WOS记录号WOS:000301171200006
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被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10353
专题中科院边缘海地质重点实验室
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Clift, PD,Carter, A,Giosan, L,et al. U-Pb zircon dating evidence for a Pleistocene Sarasvati River and capture of the Yamuna River[J]. GEOLOGY,2012,40(3):211-214.
APA Clift, PD.,Carter, A.,Giosan, L.,Durcan, J.,Duller, GAT.,...&Fuller, DQ.(2012).U-Pb zircon dating evidence for a Pleistocene Sarasvati River and capture of the Yamuna River.GEOLOGY,40(3),211-214.
MLA Clift, PD,et al."U-Pb zircon dating evidence for a Pleistocene Sarasvati River and capture of the Yamuna River".GEOLOGY 40.3(2012):211-214.
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