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在巴颜喀拉盆地西段黄羊岭组中发现了一个长约3km、厚约1295m的玄武岩+碳酸盐岩的隆起建造,具有3个由玄武岩基底加碳酸盐岩盖层组成的双层剖面结构。隆起建造中海相沉积物由下至上从深海相渐变为浅海相,生物化石由浮游生物组合演变为浅海造礁生物组合。通过与现代海山的对比,证实巴颜喀拉西段发现的隆起建造属古海山堆积,根据化石的时代确定其为中二叠世的古海山,暗示巴颜喀拉盆地在中二叠世以前存在一个古大洋,其后古大洋逐渐俯冲消减,演化为残留洋盆地,这对巴颜喀拉盆地地质构造演化的研究和构造属性的厘定具有重要意义。
In the Huangyangling Formation in the western segment of the Bayan Har basin, a basalt / carbonate uplift about 3 km long and about 1295 m thick has been found with three basalts consisting of basaltic and carbonate caprock Layer profile structure. In the uplift, the sediments in the middle-sea facies gradually change from the deep sea facies to the shallow sea facies from bottom to top, and the biological fossils have evolved from the plankton assemblage to the shallow sea reef biological assemblage. By contrast with the modern seamounts, it is confirmed that the uplift built in the Bayan Kalaxi section belongs to the Guhaishan pluton. According to the age of the fossils, it was confirmed as the Middle Himalayas of the Middle Permian, suggesting that the Bayan Kala Basin was The existence of an ancient ocean, followed by the subduction and subduction of the Paleo-Ocean and the evolution to a residual ocean basin are of great significance for the study of the tectonic evolution and the determination of structural properties in the Bayan Har basin.