Rock magnetic record of Cenozoic lake sediments from the Linxia basin and aridification of the Asian inland |
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| Authors: | Xianhai Xu and Xiaomin Fang |
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| Affiliation: | (1) Anqing Teachers College, Anqing, 246011, China;(2) Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China;(3) Key Laboratory of West China’s Environmental Systems of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China |
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| Abstract: | High resolution research of rock magnetic records and quartz sands from the Maogou Section in the Linxia basin reveals that after a relatively stable environment between 13.07 Ma and 8.6 Ma, the basin was gradually influxed by eolian dusts at about 8.6 Ma, with two rapid increases at about 6.4 Ma and 5.3 Ma, respectively. The study suggests that drying of northwest China began at 8.6 Ma and strengthened rapidly at about 6.4 Ma and 5.3 Ma. __________ Translated from Marine geology & Quaternary geology, 2007, 27(4): 103–110 [译自: 海洋地质与第四纪地质] |
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| Keywords: | rock magnetism quartz sands aridification Linxia basin |
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