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一、概述柴达木盆地西南的祁漫塔格北麓低山区——哈尔扎到黑山一带(东经91°30′—92°00′,北纬37°20′—37°40′),发育着一套层序比较清楚的海陆交互相晚泥盆世沉积地层。其总体分布,呈一轴向大致北西的残破复向斜构式。岩性以碎屑岩建造为主,间夹不规则的透镜状中基—中酸性火山熔岩、火山碎屑岩和少量灰岩透镜体。总厚度大于1475.4米。产有较丰富的动植物化石。
I. Overview The southwestern Qaidam Basin is located in the low mountainous area of northern foot of Qimantag-Halza-Montenegro (longitude 91 ° 30’-92 ° 00’and longitude 37 ° 20’-37 ° 40’N) A set of relatively clear sequences of sea-land interaction late Devonian sedimentary strata. Its general distribution, showing a north-west axis of the ruptured complex synclinary structure. Lithology is mainly composed of clastic rocks with irregularly shaped lenticular medium-acidic volcanic lava, pyroclastic rocks and a few limestone lenses. The total thickness of more than 1475.4 meters. Produce more abundant animal and plant fossils.