Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.quascirev.2010.08.003 |
A similar to 200 ka record of climatic change and dune activity in the Thar Desert, India | |
Singhvi, A. K.2; Williams, M. A. J.1; Rajaguru, S. N.3; Misra, V. N.3; Chawla, S.2; Stokes, S.4; Chauhan, N.2; Francis, T.2; Ganjoo, R. K.5; Humphreys, G. S.6 | |
通讯作者 | Williams, M. A. J. |
来源期刊 | QUATERNARY SCIENCE REVIEWS
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ISSN | 0277-3791 |
出版年 | 2010 |
卷号 | 29期号:23-24页码:3095-3105 |
英文摘要 | An 18 4 m excavated dune section in the Thar Desert of India with a chronology based on 12 TL ages and a basal age of similar to 190 ka has preserved 12 cycles of dune accretion soil formation calcrete development and subsequent erosion together with the presence of stone artefacts ranging in age from Lower Palaeolithic to Mesolithic coeval with more humid climatic interludes Phases of soil development and carbonate precipitation were relatively wet and phases of dune accretion relatively dry so that there were 12 significant moist intervals separated by 11 drier intervals during the past similar to 190 ka The calculated time interval between successive phases of dune sand accumulation ranged from 22 2 ka to 15 8 ka with a mean of 19 0 ka These values are consistent with a precessional influence on dune activity and on the associated onset of early monsoonal activity in this region Carbon isotopes measured on organic matter within the sand profiles show consistent values close to -21 6 +/- 1 parts per thousand, pointing to deposition during a transitional climatic regime characterized by a change from open C3 grassland to C4 woodland or forest. (C) 2010 Elsevier Ltd All rights reserved |
类型 | Article |
语种 | 英语 |
国家 | Australia ; India ; England |
收录类别 | SCI-E |
WOS记录号 | WOS:000283699000011 |
WOS关键词 | LATE PLEISTOCENE ; MONSOONAL CLIMATE ; WESTERN INDIA ; SEQUENCES ; RAJASTHAN ; RESPONSES ; EASTERN ; PLAINS ; SAHARA ; MARGIN |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | University of Oxford |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/166191 |
作者单位 | 1.Univ Adelaide, Adelaide, SA 5005, Australia; 2.Phys Res Lab, Ahmadabad 380009, Gujarat, India; 3.Deccan Coll, Pune, Maharashtra, India; 4.Univ Oxford, Dept Geog, Oxford, England; 5.Univ Jammu, Dept Geol, Jammu 180004, India; 6.Macquarie Univ, Sydney, NSW 2109, Australia |
推荐引用方式 GB/T 7714 | Singhvi, A. K.,Williams, M. A. J.,Rajaguru, S. N.,et al. A similar to 200 ka record of climatic change and dune activity in the Thar Desert, India[J]. University of Oxford,2010,29(23-24):3095-3105. |
APA | Singhvi, A. K..,Williams, M. A. J..,Rajaguru, S. N..,Misra, V. N..,Chawla, S..,...&Humphreys, G. S..(2010).A similar to 200 ka record of climatic change and dune activity in the Thar Desert, India.QUATERNARY SCIENCE REVIEWS,29(23-24),3095-3105. |
MLA | Singhvi, A. K.,et al."A similar to 200 ka record of climatic change and dune activity in the Thar Desert, India".QUATERNARY SCIENCE REVIEWS 29.23-24(2010):3095-3105. |
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