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新疆托克逊县之东南约60km的阿齐克布拉克地区,发育着一套厚逾5100m的火山碎屑岩、碎屑岩和碳酸盐岩系地层,其中含有多种类型的金属矿产。1965年新疆地质局将这套地层称阿哈布拉克群,多年来均未找到化石,时代为志留纪其根据是:1)1959年新疆地质局库巴大队在西邻区找到志留纪笔石,岩性为灰绿色泥质岩,从构造位置上与本区处在同一条带;2)该套地层在本区被下石炭统马鞍桥组呈角度不整合超覆其上,时
There is a volcaniclastic, clastic and carbonate rock formation of more than 5100 m in thickness in the Azibulak region about 60 km southeast of Toksun County in Xinjiang, containing various types of metallogenic minerals. In 1965, Xinjiang Geological Bureau called this stratum Ahabulake Group, and found no fossils for many years. According to the time, Silurian was based on: 1) In 1959, the Xinjiang Geological Bureau Kuoba Brigade found Silurian Penoliths, lithologically gray-green argillaceous rocks, are structurally located in the same zone as this zone; 2) the set of strata is overridden by the unconformity of the Lower Carboniferous saddle arch formation in this zone,