Magnetostratigraphic dating of the Huojiadi Paleolithic site in the Nihewan Basin,North China
会议名称：《中国科学院地质与地球物理研究所第十届(2010年度)学术年会》
会议日期：2011年
学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学]
基 金：provided by the National Natural Science Foundation of China(grants 40925012,40904016 and 40821091) the Ministry of Science and Technology of China(grant 2007FY110200) and the Chinese Academy of Sciences
关 键 词：Pleistocene Magnetostratigraphy Huojiadi Paleolithic site Nihewan Basin Brunhes Matuyama Jaramillo Human evolution
摘 要：The fluvio-lacustrine sequences in the Nihewan Basin,northern China provide important terrestrial archives of paleoclimate and paleoenvironment as well as an important source of Paleolithic settlements and therefore early human occupation in the eastern Old *** dating of the sequences has permitted the precise timing of the basin infilling and associated Paleolithic and mammalian fauna *** we report new magnetostratigraphic results that place stringent age controls on the Huojiadi Paleolithic site in this ***-oxidized magnetite and hematite were identified as the major carriers for the characteristic remanent *** results show that the Huojiadi sequence recorded the very late Matuyama reverse chron and the Jaramillo normal *** stone artifact layer resides in the Jaramillo normal subchron,yielding an estimated age of around 1.0 Ma for the Huojiadi Paleolithic ***,by combining our magnetostratigraphy and previously published magneto-chronology data,a magnetochronological sequence of the early Pleistocene Paleolithic sites in the Nihewan Basin has been *** chronological sequence implies that early humans may have persistently colonized the high-latitude temperate areas in the eastern Old World,such as the Nihewan Basin,during the Early Pleistocene.