發(fā)布時(shí)間：2018-04-13 23:02

  本文選題：塔里木盆地 + 成因機(jī)理��； 參考：《天然氣地球科學(xué)》2017年07期

【摘要】：通過(guò)研究確定塔里木盆地哈得遜地區(qū)巴楚組地層序列類型及其成因機(jī)理,解決地層演化和沉積歷史的相關(guān)爭(zhēng)議。通過(guò)巖心、測(cè)井資料的分析及區(qū)域地層對(duì)比,確定哈得遜地區(qū)巴楚組東河砂巖段之上存在下泥巖段和生屑灰?guī)r段。哈得遜地區(qū)東河砂巖段、下泥巖段、生屑灰?guī)r段在石炭系早期依次沉積,此沉積序列為該區(qū)巴楚組標(biāo)準(zhǔn)沉積序列,該標(biāo)準(zhǔn)序列與塔里木盆地其他地區(qū)的東河砂巖段—下泥巖段—生屑灰?guī)r段沉積序列一致。由于在沉積之后即受構(gòu)造抬升、不均勻剝蝕及混積作用影響,該區(qū)大部分巴楚組標(biāo)準(zhǔn)地層序列不再完整,并形成角礫巖段,形成5種地層序列類型(自下而上):Ⅰ東河砂巖—下泥巖—生屑灰?guī)r;Ⅱ東河砂巖—下泥巖—角礫巖;Ⅲ東河砂巖—下泥巖;Ⅳ東河砂巖—角礫巖;Ⅴ東河砂巖,此種地層序列在東河砂巖油藏區(qū)具有明顯的分區(qū)性。對(duì)哈得遜地區(qū)巴楚組地層序列的正確認(rèn)識(shí)對(duì)該區(qū)沉積環(huán)境和沉積層序、東河砂巖鈣質(zhì)來(lái)源和成巖作用、地震資料應(yīng)用以及油氣勘探等研究具有重要意義。
[Abstract]:The formation sequence types and genetic mechanism of Bachu formation in Hudson area of Tarim Basin are determined and the related disputes about stratigraphic evolution and sedimentary history are resolved.Based on the analysis of core, logging data and regional stratigraphic correlation, it is determined that there are lower mudstone member and lithogenic limestone member above Donghe sandstone member of Badeson formation in Hudson area.The Donghe sandstone member, the lower mudstone member and the sedimentary limestone member of Donghe formation in Hudson area were sequentially deposited in the early Carboniferous, which is the standard sedimentary sequence of the Bachu formation in this area.The standard sequence is consistent with the sedimentary sequence of Donghe sandstone-Lower mudstone member and bioclastic limestone member in other areas of Tarim Basin.Due to the influence of tectonic uplift, inhomogeneous denudation and mixing, most of the standard formation sequences of Bachu formation in this area are no longer complete and breccia formation is formed.Forming five types of stratigraphic sequence (from bottom to top: I Donghe sandstone-Lower mudstone -bioclastic limestone; 鈪，

本文編號(hào)：1746587