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本文以浅部沉积盆地热历史为基础,结合地热学的相关理论计算了塔里木盆地主要地质时期的“热”岩石圈厚度.研究表明,塔里木盆地中、新生代岩石圈厚度演化具有中生代-古近纪早期的缓慢增厚和古近纪至今的快速增厚的特征,即中生代早期“热”岩石圈厚度为57~62km,平均为59km,逐渐增加至中生代末期的76~84km,平均为79km;古近纪受印度板块与欧亚板块碰撞及其随后持续的汇聚作用,岩石圈厚度快速增厚,增加至现今的104~159km,平均为134km.本文的研究成果初步揭示出塔里木盆地中、新生代岩石圈演化的过程及阶段,弥补了塔里木盆地在这一方面的研究空白,具有重要的科学意义.
Based on the thermal history of the shallow sedimentary basins, the “hot” lithospheric thickness of the Tarim Basin during the main geologic period was calculated based on the geothermal correlation theory.The results show that the Mesozoic and Cenozoic lithosphere thickness evolution in the Tarim Basin has Mesozoic- The slow thickening in the early Paleogene and rapid thickening from the Paleogene to the present, ie, the early Mesozoic “hot” lithosphere has a thickness of 57-62 km with an average of 59 km and gradually increases from 76-84 km in the late Mesozoic, with an average of The Paleogene was affected by the collision between the Indian plate and the Eurasian plate and its subsequent continuous convergence. The thickness of the lithosphere was rapidly thickened, increasing to the present 104 km-159 km with an average of 134 km. The research results of this paper initially revealed that the Tarim Basin The process and stages of the Meso-Cenozoic lithosphere evolution make up the research blank of Tarim Basin in this aspect and have important scientific significance.