Late quaternary palaeolake levels in Tengger Desert, NW China
Comprehensive field investigations and laboratory analyses show that palaeolakes, including the Megalake Tengger, and other semi-connected and isolated water bodies, during late Pleistocene covered an area of more than 20,000 km(2). This is an area more than half the size of the Tengger Desert in NW...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Language: | English |
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/20580 https://doi.org/10.1016/j.palaeo.2004.04.006 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/20580 2023-05-15T16:39:16+02:00 Late quaternary palaeolake levels in Tengger Desert, NW China Zhang, HC Peng, JL Ma, Y Chen, GJ Feng, ZD Li, B Fan, HF Chang, FQ Lei, GL Wunnemann, B 2004-08-19 http://ir.nigpas.ac.cn/handle/332004/20580 https://doi.org/10.1016/j.palaeo.2004.04.006 英语 eng ELSEVIER SCIENCE BV PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.nigpas.ac.cn/handle/332004/20580 doi:10.1016/j.palaeo.2004.04.006 late Pleistocene lake level Tengger Desert NW China C-14 data NORTHWESTERN CHINA MONSOON CLIMATE NORTH-ATLANTIC WESTERN TIBET GOBI DYNAMICS ICE-CORE HOLOCENE RECORD EVOLUTION INSTABILITY Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary 期刊论文 2004 ftchinacscnigpas https://doi.org/10.1016/j.palaeo.2004.04.006 2019-08-14T12:44:42Z Comprehensive field investigations and laboratory analyses show that palaeolakes, including the Megalake Tengger, and other semi-connected and isolated water bodies, during late Pleistocene covered an area of more than 20,000 km(2). This is an area more than half the size of the Tengger Desert in NW China. Stratigraphic correlations and chronological evidence indicate that the palaeolakes started to develop around 42,000 C-14 year BP (uncalibrated, all throughout the paper) but their extent was limited until 37,000 C-14 year BP. Based on the chronology of representative lacustrine deposits, it can be deduced that the Megalake Tengger was established around 35,00 year BP and maintained until 22,000 C-14 year BP, leading to the formation of the Baijian Hu terraces, which are regarded as firm evidence of the existence of palaeolakes. The formation mechanism is unclear and the climate situation at the time is still an open question. The Holocene palaeolakes started to develop around 12,000 C-14 year BP. The Baijian Hu terraces indicate that the high water levels in the area occur-red around 8500, 5400-5100, 3500, and 1860-1370 C-14 year BP. The extent of the Holocene palaeolakes, primarily migratory lakes, was smaller than that of the Late Pleistocene palaeolakes. (C) 2004 Elsevier B.V. All rights reserved. Report ice core North Atlantic Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Palaeogeography, Palaeoclimatology, Palaeoecology 211 1-2 45 58 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
late Pleistocene lake level Tengger Desert NW China C-14 data NORTHWESTERN CHINA MONSOON CLIMATE NORTH-ATLANTIC WESTERN TIBET GOBI DYNAMICS ICE-CORE HOLOCENE RECORD EVOLUTION INSTABILITY Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
spellingShingle |
late Pleistocene lake level Tengger Desert NW China C-14 data NORTHWESTERN CHINA MONSOON CLIMATE NORTH-ATLANTIC WESTERN TIBET GOBI DYNAMICS ICE-CORE HOLOCENE RECORD EVOLUTION INSTABILITY Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary Zhang, HC Peng, JL Ma, Y Chen, GJ Feng, ZD Li, B Fan, HF Chang, FQ Lei, GL Wunnemann, B Late quaternary palaeolake levels in Tengger Desert, NW China |
topic_facet |
late Pleistocene lake level Tengger Desert NW China C-14 data NORTHWESTERN CHINA MONSOON CLIMATE NORTH-ATLANTIC WESTERN TIBET GOBI DYNAMICS ICE-CORE HOLOCENE RECORD EVOLUTION INSTABILITY Physical Geography Geology Paleontology Geography Physical Geosciences Multidisciplinary |
description |
Comprehensive field investigations and laboratory analyses show that palaeolakes, including the Megalake Tengger, and other semi-connected and isolated water bodies, during late Pleistocene covered an area of more than 20,000 km(2). This is an area more than half the size of the Tengger Desert in NW China. Stratigraphic correlations and chronological evidence indicate that the palaeolakes started to develop around 42,000 C-14 year BP (uncalibrated, all throughout the paper) but their extent was limited until 37,000 C-14 year BP. Based on the chronology of representative lacustrine deposits, it can be deduced that the Megalake Tengger was established around 35,00 year BP and maintained until 22,000 C-14 year BP, leading to the formation of the Baijian Hu terraces, which are regarded as firm evidence of the existence of palaeolakes. The formation mechanism is unclear and the climate situation at the time is still an open question. The Holocene palaeolakes started to develop around 12,000 C-14 year BP. The Baijian Hu terraces indicate that the high water levels in the area occur-red around 8500, 5400-5100, 3500, and 1860-1370 C-14 year BP. The extent of the Holocene palaeolakes, primarily migratory lakes, was smaller than that of the Late Pleistocene palaeolakes. (C) 2004 Elsevier B.V. All rights reserved. |
format |
Report |
author |
Zhang, HC Peng, JL Ma, Y Chen, GJ Feng, ZD Li, B Fan, HF Chang, FQ Lei, GL Wunnemann, B |
author_facet |
Zhang, HC Peng, JL Ma, Y Chen, GJ Feng, ZD Li, B Fan, HF Chang, FQ Lei, GL Wunnemann, B |
author_sort |
Zhang, HC |
title |
Late quaternary palaeolake levels in Tengger Desert, NW China |
title_short |
Late quaternary palaeolake levels in Tengger Desert, NW China |
title_full |
Late quaternary palaeolake levels in Tengger Desert, NW China |
title_fullStr |
Late quaternary palaeolake levels in Tengger Desert, NW China |
title_full_unstemmed |
Late quaternary palaeolake levels in Tengger Desert, NW China |
title_sort |
late quaternary palaeolake levels in tengger desert, nw china |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2004 |
url |
http://ir.nigpas.ac.cn/handle/332004/20580 https://doi.org/10.1016/j.palaeo.2004.04.006 |
genre |
ice core North Atlantic |
genre_facet |
ice core North Atlantic |
op_relation |
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://ir.nigpas.ac.cn/handle/332004/20580 doi:10.1016/j.palaeo.2004.04.006 |
op_doi |
https://doi.org/10.1016/j.palaeo.2004.04.006 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
211 |
container_issue |
1-2 |
container_start_page |
45 |
op_container_end_page |
58 |
_version_ |
1766029605410439168 |