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青藏高原和广大西北地区是我国新生界研究最为薄弱的地区之一,绝大多数地层的划分仅依据岩性和发现的少量生物化石进行,缺少绝对年代测定山.本文以临夏盆地为层型地点,对我国西北地区的新生界开始逐步展开详细研究.
The Qinghai-Tibet Plateau and the vast northwestern region are one of the most weakest areas in the study of Cenozoic in China. The vast majority of stratigraphic division is only based on lithology and a small amount of biological fossils found, but lack of absolute dating .In this paper, , Began a detailed study of the Cenozoic in Northwest China gradually.