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chai da mu dong bei yuan de zhong ao tao tong ji qi yu xia ao tao tong de jie xian
Author(s): 
Pages: 26-32
Year: Issue:  1
Journal: QINGHAI GUOTU JINGLUE

Keyword:  中奥陶统下奥陶统中奥陶世石灰沟柴达木盆地达肯大坂群下伏地层兰代洛期大坂山角度不整合;
Abstract: <正> 一、中奥陶统概况柴达木盆地东北缘山区的中奥陶统分布在大柴旦镇东南,青新公路以北的达肯大坂山中段塔塔楞河下游、大头羊沟等地组成达肯大坂山主脊.拔海高度平均在4000米以上,最高峰达4928米。塔塔楞河横贯中部,河床到山脊的相对高差在1000米以上,河谷两岸则形成上百米高的绝壁。达肯大坂山北坡出露为石炭、二迭纪地层;南坡以震旦亚界达肯大坂群为主。在石炭系与达肯大坂群间则为中奥陶世地层;呈北北西——南南东向
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