地质通报2011，Vol.30Issue(12)：1823-1828,6.
青海省天峻县木里煤田聚乎更矿区构造轮廓和地层格架
Structure and stratigraphy of the Juhugeng coal district at Muli, Tianjun County, Qinghai Province
摘要
Abstract
Since gas hydrates were found in the permafrost of the Juhugeng ore district (fHG) in the Muli coalfield of Qinghai Province, the JHG has become one of the hot spot areas in the Tibetan Plateau. This paper has investigated the geological structure, coal-bearing stratigraphy and depositional facies of the Jurassic coal measures in the JHG area. The JHG area is structurally located in the western section of the Qilian depression-folding zone. Controlled by the thrusting faults along the northern margin of the Datong-shan and the southern margin of the Tuolaishan, the structures in the JHG area extend from northwest to southeast, and find expression in two synclines, I.e., northern syncline and southern syncline. Coal resources are preferentially preserved in the northern syncline. Coals were formed in the Middle Jurassic Muli Formation and Jiangcang Formation, and the regionally minable coals are preserved in the Upper Member of the Muli Formation. Coal accumulations mainly occur in the swamp environment developed in the abandoned braided river system and in the swamp environment developed by shallowing of the lacustrine and subaqueous delta.关键词
侏罗纪/木里组/沉积相/构造背景/木里煤田/青海Key words
Jurassic/ Muli Formation/ sedimentary facies/ structure setting/ Muli coalfield/ Qinghai分类
天文与地球科学引用本文复制引用
文怀军,邵龙义,李永红,鲁静,张少林,王文龙,黄曼..青海省天峻县木里煤田聚乎更矿区构造轮廓和地层格架[J].地质通报,2011,30(12):1823-1828,6.基金项目
中国地质调查局地质调查项目《青藏高原冻土带天然气水合物调查评价》(编号:1212010818055)和国家重点基础研究发展计划项目(编号:2009CB219501) （编号:1212010818055）
