Cenozoic record of aeolian sediment accumulation and aridification from Lanzhou, China, driven by Tibetan Plateau uplift and global climate

Zhang, Yuebao; Sun, Deqiang; Li, Zaijun; Wang, Fei; Wang, Xin; Li, Baofeng; Guo, Feng; Wu, S. Z.

doi:10.1016/j.gloplacha.2014.05.009

Cited by 62 publications

(47 citation statements)

References 67 publications

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“…The upper four normal intervals (N1–N4) separated by three reversed intervals (R1–R3) in the present DTG section and the Fenghuangshan section26 are consistently correlated to correlated to C5En–C6An.2n. Possibly because of frequently thick sandstone deposition in the Fenghuangshan section, Zhang et al 26. failed to establish a reliable magnetostratigraphy for the lower part of the Middle Xianshuihe Formation.…”

Section: Discussionsupporting

confidence: 49%

“…In comparison to the initial magnetostratigraphic record from the DTG section22425 and a recent record from the Fenghuangshan section26 (6 km to the south of the DTG section), our new detailed magnetostratigraphy considerably improves the polarity chron structure of the Middle Xianshuihe Formation in the Lanzhou Basin, although the three records have roughly similar magnetic polarity sequences (Fig. 2).…”

Section: Discussionmentioning

confidence: 75%

“…S1). In recent years more paleomagnetic records from the Lanzhou Basin (e.g., Xingjiawan17 and Fenghuangshan section26) and the adjacent Xining Basin814 became available. Thus, the basin’s depositional history and the specific features of its detrital remanent magnetism are better understood.…”

mentioning

confidence: 99%

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Late Oligocene–Early Miocene magnetochronology of the mammalian faunas in the Lanzhou Basin–environmental changes in the NE margin of the Tibetan Plateau

Zhang

Dekkers

et al. 2016

Sci Rep

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A large number of terrestrial mammalian fossils were reported in the well-exposed Paleogene and Neogene fluvio-lacustrine strata in Western China. Their accurate ages are crucial to understand the mammalian and environmental evolution associated with the step-wise uplift of the Tibetan Plateau. At present their ages are surprisingly poorly constrained. Here, we present a high-resolution magnetostratigraphic dating of the Late Oligocene–Early Miocene mammal assemblages from a 233-m thick fluvio-lacustrine section in the Lanzhou Basin located at the northeastern margin of the Tibetan Plateau, China. The results suggest that the section spans from the polarity subchron C6Cn.2r to C5En, i.e. ranging from ca 23 to 18 Ma. This magnetochronology provides considerably more robust ages for three associated land mammalian faunal assemblages. Updated ages end the debate on existing ambiguous and distinctly different magnetostratigraphic correlations for those Late Oligocene–Early Miocene assemblages. The new ages now enable precise correlation of these faunas to the European Land Mammal and North American Land Mammal Ages. The faunal assemblages further suggest a mixed setting of woodlands and grasslands associated with a humid environment in the Lanzhou Basin during the Late Oligocene–Early Miocene, in contrast to its modern poor vegetation cover and arid environment.

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Section: Discussionsupporting

confidence: 49%

Section: Discussionmentioning

confidence: 75%

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Late Oligocene–Early Miocene magnetochronology of the mammalian faunas in the Lanzhou Basin–environmental changes in the NE margin of the Tibetan Plateau

Zhang

Dekkers

et al. 2016

Sci Rep

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“…Sun et al 1998a;Ding et al 1998b;Qiang et al 2001). Further studies suggest that the history of aeolian dust deposition of interior China can be tracked back to 11 Ma (Xu et al 2009;Wang et al 2014) or even to 26-22 Ma (Guo et al 2002;Sun et al 2010;Qiang et al 2011;Zhang et al 2014a). Recently, late Eocene aeolian records have been found in the Xining basin ( Figure 1) (Licht et al 2014).…”

Section: Introductionmentioning

confidence: 95%

Combined tectonics and climate forcing for the widespread aeolian dust accumulation in the Chinese Loess Plateau since the early late Miocene

Jiang

2015

International Geology Review

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Currently mechanisms for the onset of the widespread aeolian dust accumulation in the Chinese Loess Plateau since 8-7 Ma remain elusive. In this study, we compile 11 records of climate (14-7 Ma) and tectonic activity of the Tibetan Plateau and its adjacent areas (15-6 Ma). The results suggest that strong tectonic activity in the northeastern Tibetan Plateau has produced massive debris and dust, which was deposited in the piedmont basins and reworked by weathering and fluviolacustrine erosion. At the same time, global cooling and uplift of the Tibetan Plateau over the period of 14-7 Ma intensified the East Asian winter monsoon and westerly winds (westerlies) while weakening the Asian summer monsoon, which led to the spread of dry land vegetation and aridification in interior China. Sediments in the piedmont basins were then exposed in the aridity and transported by the westerlies to the Chinese Loess Plateau and the North Pacific. We suggest that tectonic activity in the northeastern Tibetan Plateau and shifting global climate together triggered the widespread aeolian dust accumulation in the Chinese Loess Plateau and the North Pacific since 8-7 Ma.

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“…Another subbasin of the Longzhong Basin is the Lanzhou basin, located in the eastern part of Linxia basin. Its Cenozoic lithology can be divided into the Neogene fluvial/lacustrine mudstone and sandstone, and Quaternary eolian loess (Zhang et al, 2014). The Tianshui Basin, situated in the southeastern corner of the broad Longzhong Basin, is surrounded by the Western Qinling Mountains to the south, the Liupan Shan Mountains to the east, and the Huajia Ling Mountains to the north.…”

Section: Geological Setting and Data Integrationmentioning

confidence: 99%

An integrated biomarker perspective on Neogene–Quaternary climatic evolution in NE Tibetan Plateau: Implications for the Asian aridification

Peng

Song

et al. 2016

Quaternary International

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Cenozoic record of aeolian sediment accumulation and aridification from Lanzhou, China, driven by Tibetan Plateau uplift and global climate

Cited by 62 publications

References 67 publications

Late Oligocene–Early Miocene magnetochronology of the mammalian faunas in the Lanzhou Basin–environmental changes in the NE margin of the Tibetan Plateau

Late Oligocene–Early Miocene magnetochronology of the mammalian faunas in the Lanzhou Basin–environmental changes in the NE margin of the Tibetan Plateau

Combined tectonics and climate forcing for the widespread aeolian dust accumulation in the Chinese Loess Plateau since the early late Miocene

An integrated biomarker perspective on Neogene–Quaternary climatic evolution in NE Tibetan Plateau: Implications for the Asian aridification

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