Magnetostratigraphic dating of the Huojiadi Paleolithic site in the Nihewan Basin, North China
Magnetostratigraphic dating of the Huojiadi Paleolithic site in the Nihewan Basin, North China
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华北泥河湾盆地霍家地旧石器时代遗址的磁性地层测年
DOI：
10.1016/j.palaeo.2010.10.027
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发表时间：
2010-12-15
影响因子：
3
通讯作者：
Zhu, Rixiang
中科院分区：
文献类型：
--
作者：
Liu, Ping;Deng, Chenglong;Zhu, Rixiang
中国北方泥河湾盆地的河湖相沉积是古气候和古环境的重要记录，也是旧大陆东部旧石器时代人类活动的重要来源。磁性地层测年的序列允许盆地填充和相关的旧石器时代和哺乳动物区系的网站的精确时间。在这里，我们报告的新的磁性地层学结果，在该盆地的霍家地旧石器时代遗址严格的年龄控制。部分氧化的磁铁矿和赤铁矿被确定为主要载体的特征reversible磁化。磁性地层学研究表明，霍家地层序记录了松山逆时晚期和哈拉米略正亚时。石制品层位于Jaramillo正常亚时，估计霍家地旧石器时代遗址的年龄约为1.0 Ma。结合磁性地层学和已发表的磁性年代学资料，建立了泥河湾盆地早更新世旧石器时代遗址的磁性年代学序列。年代顺序表明，早期人类可能在早更新世期间持续地在旧大陆东部的高纬度温带地区定居，如泥河湾盆地。(C)2010爱思唯尔有限公司版权所有。
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 World. Magnetostratigraphic dating of the sequences has permitted the precise timing of the basin infilling and associated Paleolithic and mammalian fauna sites. Here we report new magnetostratigraphic results that place stringent age controls on the Huojiadi Paleolithic site in this basin. Partially-oxidized magnetite and hematite were identified as the major carriers for the characteristic remanent magnetizations. Magnetostratigraphic results show that the Huojiadi sequence recorded the very late Matuyama reverse chron and the Jaramillo normal subchron. The stone artifact layer resides in the Jaramillo normal subchron, yielding an estimated age of around 1.0 Ma for the Huojiadi Paleolithic site. Furthermore, by combining our magnetostratigraphy and previously published magnetochronology data, a magnetochronological sequence of the early Pleistocene Paleolithic sites in the Nihewan Basin has been established. The 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. (C) 2010 Elsevier B.V. All rights reserved.