Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years
Abstract Climatic changes inferred from lacustrine deposits and lake-level fluctuations in northwestern and central China are mainly based on paleoclimatic records from the Tibetan Plateau, while there is still a lack of data relating to the semiarid/arid desert regions of Inner Mongolia. In the Ten...
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Cambridge University Press (CUP)
1995
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Online Access: | http://dx.doi.org/10.1006/qres.1995.1061 http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400024364 |
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crcambridgeupr:10.1006/qres.1995.1061 2024-09-09T19:26:11+00:00 Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years Pachur, Hans-Joachim Wünnemann, Bernd Zhang, Hucai 1995 http://dx.doi.org/10.1006/qres.1995.1061 http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400024364 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 44, issue 2, page 171-180 ISSN 0033-5894 1096-0287 journal-article 1995 crcambridgeupr https://doi.org/10.1006/qres.1995.1061 2024-08-28T04:03:32Z Abstract Climatic changes inferred from lacustrine deposits and lake-level fluctuations in northwestern and central China are mainly based on paleoclimatic records from the Tibetan Plateau, while there is still a lack of data relating to the semiarid/arid desert regions of Inner Mongolia. In the Tengger Desert, different paleolake levels at Baijian Hu are documented by six paleoshorelines and stratified lake carbonates. The highest lake level occurred ca. 39,000 14 C yr B.P. and prevailed over about 16,000 km 2 . From sediment structure, geochemical composition, and ostracods we infer humid/cool conditions until 23,000 14 C yr B.P. In the northern Badanjilin Desert at Gaxan Nur/Sogu Nur, high lake levels can be deduced from mollusc-bearing paleobeaches and lake carbonates, which have been dated to 34,000 14 C yr B.P. and indicate a lake that covered some 32,000 km 2 . After ca. 20,000 yr B.P. the climate became dry with increased eolian activity and decreasing lake levels. Reestablishment of wet conditions occurred ca. 13,000 yr B.P. The Holocene is represented by stratified lake deposits that alternate with fluvial and eolian deposits, indicating a longterm oscillating trend toward arid conditions. The existence of widespread freshwater lakes during the late Pleistocene indicates a semihumid climate without an accompanying fall in temperature to arctic conditions. Article in Journal/Newspaper Arctic Cambridge University Press Arctic High Lake ENVELOPE(-110.849,-110.849,67.386,67.386) Quaternary Research 44 2 171 180 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Climatic changes inferred from lacustrine deposits and lake-level fluctuations in northwestern and central China are mainly based on paleoclimatic records from the Tibetan Plateau, while there is still a lack of data relating to the semiarid/arid desert regions of Inner Mongolia. In the Tengger Desert, different paleolake levels at Baijian Hu are documented by six paleoshorelines and stratified lake carbonates. The highest lake level occurred ca. 39,000 14 C yr B.P. and prevailed over about 16,000 km 2 . From sediment structure, geochemical composition, and ostracods we infer humid/cool conditions until 23,000 14 C yr B.P. In the northern Badanjilin Desert at Gaxan Nur/Sogu Nur, high lake levels can be deduced from mollusc-bearing paleobeaches and lake carbonates, which have been dated to 34,000 14 C yr B.P. and indicate a lake that covered some 32,000 km 2 . After ca. 20,000 yr B.P. the climate became dry with increased eolian activity and decreasing lake levels. Reestablishment of wet conditions occurred ca. 13,000 yr B.P. The Holocene is represented by stratified lake deposits that alternate with fluvial and eolian deposits, indicating a longterm oscillating trend toward arid conditions. The existence of widespread freshwater lakes during the late Pleistocene indicates a semihumid climate without an accompanying fall in temperature to arctic conditions. |
format |
Article in Journal/Newspaper |
author |
Pachur, Hans-Joachim Wünnemann, Bernd Zhang, Hucai |
spellingShingle |
Pachur, Hans-Joachim Wünnemann, Bernd Zhang, Hucai Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
author_facet |
Pachur, Hans-Joachim Wünnemann, Bernd Zhang, Hucai |
author_sort |
Pachur, Hans-Joachim |
title |
Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
title_short |
Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
title_full |
Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
title_fullStr |
Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
title_full_unstemmed |
Lake Evolution in the Tengger Desert, Northwestern China, during the Last 40,000 Years |
title_sort |
lake evolution in the tengger desert, northwestern china, during the last 40,000 years |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1006/qres.1995.1061 http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589485710617?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400024364 |
long_lat |
ENVELOPE(-110.849,-110.849,67.386,67.386) |
geographic |
Arctic High Lake |
geographic_facet |
Arctic High Lake |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Quaternary Research volume 44, issue 2, page 171-180 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.1995.1061 |
container_title |
Quaternary Research |
container_volume |
44 |
container_issue |
2 |
container_start_page |
171 |
op_container_end_page |
180 |
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1809895843068641280 |