机构地区:[1]College of Earth Science, Graduate University of Chinese Academy of Sciences, Beijing 100049, China [2]State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China [3]College of Earth Sciences and Resources, China University ofGeosciences, Beijing 100083, China
出 处:《Science China Earth Sciences》2011年第11期1643-1650,共8页中国科学(地球科学英文版)
基 金:supported by the National Natural Science Foundation of China (Grant Nos. 40925012 and 40821091);the Ministry of Science and Technology of China (Grant No. 2007FY110200);the Chinese Academy of Sciences (Grant No. KZCX2-EW-117)
摘 要:The fluvio-lacustrine sedimentary sequences in the Nihewan Basin, northern China, are important for studying Quaternary land mammal evolution and Paleolithic settlements in the high-latitude temperate East Asia. Here we report new magnetostrati- graphic results that constrain age of the Hougou Paleolithic site in this basin. Magnetite and hematite were identified as carriers of the characteristic remanent magnetizations, with the former being dominant. Magnetic polarity stratigraphy shows that the Hougou sequence recorded the very late Matuyama reverse chron and the Brunhes normal chron. The age of the Hougou Paleolithic site was estimated to be 395 ka based on an averaged rate of sediment accumulation. The combination of our mag- netostratigraphy and previously published chronological data for early Paleolithic or human sites in the high-latitude northern China may document a persistent colonization of the hostile high-latitude areas of the eastern Old World during the mid- die-early Pleistocene.The fluvio-lacustrine sedimentary sequences in the Nihewan Basin,northern China,are important for studying Quaternary land mammal evolution and Paleolithic settlements in the high-latitude temperate East Asia.Here we report new magnetostratigraphic results that constrain age of the Hougou Paleolithic site in this basin.Magnetite and hematite were identified as carriers of the characteristic remanent magnetizations,with the former being dominant.Magnetic polarity stratigraphy shows that the Hougou sequence recorded the very late Matuyama reverse chron and the Brunhes normal chron.The age of the Hougou Paleolithic site was estimated to be 395 ka based on an averaged rate of sediment accumulation.The combination of our magnetostratigraphy and previously published chronological data for early Paleolithic or human sites in the high-latitude northern China may document a persistent colonization of the hostile high-latitude areas of the eastern Old World during the middle-early Pleistocene.
关 键 词:Nihewan Basin Hougou Paleolithic site magnetic stratigraphy early human evolution
分 类 号:P532[天文地球—古生物学与地层学] K871.11[天文地球—地质学]
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