摘要
南岭以南(简称"岭南")广东东江流域河源地区东源县上莞镇的碧寿洞,经2008年再次考察与发掘,新发现哺乳动物化石11属11种。这是继2000年之后又一次重要发现,现已总计达6目21属21种。经研究,其属末次间冰期OIS5a大熊猫-剑齿象动物群。该动物群的组成特别是其中典型热带成员中国犀、华南巨獏、长臂猿的存在,反映了当时的热带雨林环境。而化石层位土状堆积物的硅铝系数也在一定程度上指示了该动物群生存时期的这种气候环境。由此表明,OIS5a时东江流域及至岭南的南亚热带范围曾经发生过热带气候向北较大幅度移动的重大环境变迁。
The Bishou cave is located at Shangwan County, Heyuan area, Guandong. After investigation and excavation in 2008, 11 new speices and 11 genus of mammal fossils have been discovered there. This is another important discovery after 2000, with a total species up to 21 assigned to 21 genus within 6 order. Research shows that they all belong to the late Last Interglacial OISSa Ailuropoda-Stegodon Fauna by identification. The genera of the fauna, especially members in typical tropical zones, including Rhinoceros sinensis, Ursus thibetanus, Hylobates, etc, reflect a tropical rain forest environment at that time. To some extent, the SiOz/A12 03 ratio of earthy deposits in the fossiliferous horizon also shows this kind of the climate in which fauna lived. It is suggested that an important environment change that the tropical climate moved northward intensively in OIS5a occurred in the Dongjiang River Valley and southern subtropics zones of Linnan.
出处
《地质学报》
EI
CAS
CSCD
北大核心
2011年第12期2031-2038,共8页
Acta Geologica Sinica
基金
国家自然科学基金项目(编号41071136
40471139)
中国科学院地球环境研究所黄土与第四纪地质国家重点开放实验室基金(编号SKLLQG0809)
教育部国家大学生创新性实验计划(编号081057415)
高等学校博士学科点专项科研基金(编号20070574005)
国家重点基础研究发展计划"973"项目(编号2010CB833405)资助成果
关键词
岭南
碧寿洞
哺乳动物化石
大熊猫-剑齿象动物群
末次间冰期末期
热带气候环境
Lingnan
Bishou cave, mammal fossil
Ailuropoda-Stegodon Fauna
the close of LastInterglacial Stage
environment of tropical climate
作者简介
彭培欣，男，1988年生。硕士研究生。Email：452801551@qq．COM。通讯作者：李保生，男，1951年生。教授，多年来从事环境演变研究。Email：libsh@scnu．edu．cn。
