The early Miocene sediments deposited very well in Xining basin that located in junction zone among eastern humid monsoon areas、 northwestern inland arid areas、 alpine cold regions of Tibet plateau. It remained famous Xiejia mammal fauna.
青海西宁盆地地处我国东部湿润季风区、西北内陆干旱区及青藏高原高寒区的交汇地带,内部发育良好的早中新世地层,其中含著名的谢家地方哺乳动物群,动物群所在剖面是我国谢家阶的层型剖面。
参考来源 - 青海西宁盆地早中新世磁性地层学研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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