论文部分内容阅读
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
First, the Central Ordovician Overview Ordos Basin in the northeastern margin of the Qaidam Basin in the distribution of the Middle East in the town of Dachaichaan Daqing Daban Dan Shan Dakar mid-section of the lower reaches of the Tara River, Dadouyanggou and other places up to Ken Osaka Hill main ridge. Pull altitude average more than 4000 meters, the highest peak of 4928 meters. The Tatale River traverses the central part of the country. The relative height difference between the riverbed and the ridges is above 1000 meters. The two sides of the river valley form a cliff with a height of 100 meters. Dakan Osaka mountain slope exposed as Carboniferous, two Diego stratigraphic; southern slope to Aurora sub-Dhaka Osaka group. In the Carboniferous and Daken Association between the group is the Middle Ordovician strata; was north-west-south-south-east