地质通报2011，Vol.30Issue(2)：205-213,9.
东北地区晚古生代构造演化及其石油地质意义
Late-Paleozoic tectonic evolution and oil-gas potential in northeastern China
摘要
Abstract
The three important events of tectonic-magmatism developed during Paleozoic in northeastern China, with the peak ages of 500Ma、320Ma and 250Ma, respectively. The granites with age of 500Ma are distributed in all tectonic units in the area and associated with the simultaneous high grade metamorphic rocks, representing Caledonian orogeny in northeastern China. The granites with age of 320Ma are mainly distributed in the Da-Xinganling Mountains, in NE trending, with a continuous geochemical evolution from subduction to post collision. It was an important event that an united continent (Jiameng continent) formed in northeastern China and neighbors. The granites with age of 250Ma are for the most part distributed in south and east parts of northeastern China. They are originated by extension after collision of North China continent and Jiameng continent. During Late-Carboniferous to Early-Permian,the south part of the united Jiameng continent was a passive continent margin connecting southwards with Paleo-Asia Ocean,where developed a series of faulted basins filled by terrestrial volcanics and sediments in north part and marine volcanics and sediments in south part. In Middle Permian, the faulted basins subsided continuously, a large marrine basra formed in the centre-south part of the Jiameng continent, where large thick sediments of marine carbonate and mudstone formed. In Late Permian-Early Triassic, as collision of North China and Jiameng continents along E-W trending Xilamulunhe fault and paleo sea basin extincted, a terrestrial sediment basin was formed in south part of the Jiameng continent. These Late Paleozoic basins are filled with thick sediments of mudstones and for the most part covered by Mesozoic-Cenozoic basins, it is worthy to be considered as a new field for oil-gas exploration.关键词
东北地区/晚古生代/构造演化/石油地质分类
天文与地球科学引用本文复制引用
张兴洲,乔德武,迟效国,周建波,孙跃武,张凤旭,张淑琴,赵庆英..东北地区晚古生代构造演化及其石油地质意义[J].地质通报,2011,30(2):205-213,9.基金项目
国土资源部油气专项《松辽盆地及外围上古生界油气资源战略选区》(批准号:2009GYXQ12)和国家自然科学基金重点项目《"兴蒙海槽"晚古生代构造演化》(批准号:40739905) （批准号:2009GYXQ12）
