唐古拉山地区第三纪地层的划分及命名

根据1986～1990年期间1∶20万区调资料,将唐古拉山地区的第三纪地层,划分为古—始新统、渐新统、中新统及上新统,并分别命名为沱沱河群(E1-2tt)、雅西措群（E3yx）、查保马群（N1ch）、五道染群（N1wd）和曲果组（N2q）。认为中新统查保马群和五道梁群属同期异相,并指出在雅西措群中寻找盐类矿产、五道梁群中寻找锌银铁矿产具有很大的前景。

STRATIGRAPHICAL DIVISION AND NOMENCLATURE OF THE TERTIARY IN THE TANGGULA MOUNTAINS

According to the data of 1:200000 regional surveys, the Tertiary of the Tanggula Mountains is divided into the Paleocene-Eocene, Oligocene, Miocene and Pliocene, which are named the Tuotuohe Group (E1-2tt), Yaxico Group （E3yx）, Chabama Group （N1ch）, Wudaoliang Group （N1wd） and Quguo Formation （N2q） respectively. The discovery of saline mineral deposits in the Yaxico Group and zinc, silver and iron in the Wudaoliang Group is promising.