Magnetostratigraphic and uranium-series dating of fossiliferous cave sediments in Jinyuan Cave, Liaoning Province, northeast China
Magnetostratigraphic and uranium-series dating of fossiliferous cave sediments in Jinyuan Cave, Liaoning Province, northeast China
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中国东北辽宁省金源洞化石洞穴沉积物的磁性地层和铀系测年
DOI：
10.1016/j.quaint.2020.11.031
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发表时间：
2020-11
影响因子：
2.2
通讯作者：
Olsen John W.
中科院分区：
文献类型：
--
作者：
Ge Junyi;Deng Chenglong;Shao Qingfeng;Wang Yuan;Tang Ruiping;Zhao Bo;Cheng Xiaodong;Jin Changzhu;Olsen John W.
第四纪陆生哺乳动物群的年代序列可以为哺乳动物的演化历史、区域生物地层学和古环境变迁提供重要信息。本文报道了中国东北辽宁省金源洞一个近连续的厚层沉积层序的研究结果，该层序包含4个哺乳动物群，时代从上新世晚期到中更新世晚期。详细的古地磁和U系年龄测定将沉积序列的上部单元确定为~2.2-0.3 Ma。结果表明，洞穴的发育和充填与渤海盆地的构造演化密切相关，包括盆地的沉降和周围山脉的隆升，如骆驼山。与中国南北方的大型哺乳动物群相比，中更新世过渡期（1.2- 0.7Ma）的哺乳动物群规模较小，物种多样性较低。这表明，在MPT在中国北方的主要气候变化可能降低了它们的分类丰度和多样性。季风东亚的大冰期之后，极端温暖和潮湿的间冰期气候为这些哺乳动物群的进化和迁移提供了一个生态位，导致东亚哺乳动物数量和多样性的增加。
Chronological sequences of Quaternary terrestrial mammalian faunas can provide important information about the evolutionary history of mammals, regional biostratigraphy and paleoenvironmental changes. Here we report the results of studies of a thick, nearly-continuous sedimentary sequence from Jinyuan Cave, in Liaoning Province, northeast China; the sequences contains four mammalian faunas ranging in age from the Late Pliocene to the late Middle Pleistocene. Detailed paleomagnetic and U-series age determinations date the upper unit of the sedimentary sequence to ~2.2–0.3 Ma. The results suggest that cave development and infilling were closely associated with the tectonic evolution of the Bohai Basin, including the subsidence of the basin and the uplift of the surrounding mountains, such as Luotuo Hill. Together with the large mammalian faunas from both south and north China, we suggest that these mammalian faunas were smaller in size and lower in species diversity during the Middle Pleistocene Transition (MPT) (1.2–0.7 Ma) than in the earlier and later Pleistocene. This indicates that major climatic variations during the MPT in north China may have reduced their taxonomic abundance and diversity. The extremely warm and wet interglacial climates that followed the MPT in monsoonal East Asia provided an ecological niche for the evolution and migration of these mammalian faunas, resulting in an increase in the numbers and diversity of mammals in East Asia.
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DOI：
--
发表时间：
1934
期刊：
--
影响因子：
--
作者：
W. Pei
通讯作者：
W. Pei
东亚温带北部中更新世过渡期间的植被变化和大型哺乳动物群的进化响应
DOI：
10.1016/j.palaeo.2018.06.007
发表时间：
2018-09
期刊：
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子：
--
作者：
Zhou Xinying;Yang Jilong;Wang Shiqi;Xiao Guoqiao;Zhao Keliang;Zheng Yan;Shen Hui;Li Xiaoqiang
通讯作者：
Li Xiaoqiang
影响因子：
--
作者：
Chang-zhu Jin;Wenshi Pan;Yingqi Zhang;Yanjun Cai;Qinqin Xu;Zhi-lu Tang;Wei Wang;Yuanping Wang;Jinyi Liu;Dagong Qin;R. Lawrence Edwards;Hai Cheng
通讯作者：
Chang-zhu Jin;Wenshi Pan;Yingqi Zhang;Yanjun Cai;Qinqin Xu;Zhi-lu Tang;Wei Wang;Yuanping Wang;Jinyi Liu;Dagong Qin;R. Lawrence Edwards;Hai Cheng
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
W. White
通讯作者：
W. White
影响因子：
0.9
作者：
P. Bosák;P. Pruner;J. Kadlec
通讯作者：
P. Bosák;P. Pruner;J. Kadlec