地质科学2012，Vol.47Issue(4)：921-940,20.
准噶尔盆地东部石炭纪富火山岩海相油气盆地原型:一个工作假说
Prototype of a Carboniferous petroliferous volcano-sedimentary basin in the eastern Junggar Basin:A working hypothesis
摘要
Abstract
The discovery of Carboniferous igneous hydrocarbon reservoirs in the Junggar Basin has not only enlarged prospect of petroleum exploration, but also put forward a new theme in reconstructing the prototype of petroliferous basin with igneous hydrocarbon reservoirs. The present paper, based on inter-well correlation and zircon U-Pb dating, suggested stratigraphic correlation schedule and 5 profiles across the Junggar Basin. The eastern Junggar Basin was filled in Carboniferous through two cycles and 7 steps. The first cycle is in the EarlyCarboniferous and could be subdivided into 4 steps. The steps 1 ~3 are characterized by various igneous rocks and the step 4 by dark colored mudstone indicating a quiet period in igneous activity. The second cycle is in the Late Carboniferous and could be subdivided into 3 steps. The steps 5 ~ 6 are characterized by intermediate-basic igneous rocks and the step 7 by interlayered sedimentary tuff and mudstone as well as sandstone. The present paper summarized the main characters of hydrocarbon source rock and reservoir rock and put forward a hypothetic prototype. The eastern Junggar Basin was an archipelago during Carboniferous. Northeastward subduction of the Carboniferous Junggar ocean caused southwest migration of depositional center in the eastern Junggar Basin. The prototype of the Carboniferous eastern Junggar Basin was named as accretionary basin for its position in accretionary orogenic belt. In fact, giant petroliferous basin could be formed in many kinds of tectonic background, if basin possesses good hydrocarbon source rock, reservoir rock and effective trap. In the eastern Junggar Accretionary Basin,hydrocarbon source rock and reservoir rock have intimate spatial links. Their interlayer or interfinger occurrence result in that oil-gas reservoirs always form near hydrocarbon source, and that reservoirs themselves develop in various shapes and types because of irregular shape and poor layering of igneous rocks.关键词
增生楔盆地/石炭纪/准噶尔盆地Key words
Accretionary basin, Carboniferous, The Junggar Basin分类
天文与地球科学引用本文复制引用
王清晨,阳孝法,陶辉飞..准噶尔盆地东部石炭纪富火山岩海相油气盆地原型:一个工作假说[J].地质科学,2012,47(4):921-940,20.基金项目
国家科技重大专项(编号:2011ZX05008-001)资助. （编号:2011ZX05008-001）
