古地理学报2011，Vol.13Issue(2)：209-220,12.
江汉盆地马王庙地区古近系新沟嘴组下段沉积相及其演化
Sedimentary facies and its evolution of the Lower Member of Paleogene Xingouzui Formation in Mawangmiao area of Jianghan Basin
摘要
Abstract
Based on the petrology, sedimentary structure, sedimentary sequence and logging facies etc., the delta and lacustrine sedimentary system is recognized in the Lower Member of Paleogene Xingouzui Formation in Mawangmiao area, which includes the delta plain, delta front, prodelta, shore-shallow lake and gypsum lacustrine subfacies. According to the above analyses, the single-factor analysis and multifactor eomprehensive mapping method was used to compile the strata isopach maps, sandstone isopaeh maps,sandstone istrata thickness ratio isoline maps, single well superior facies projection maps, and final sedimenlary facies maps of intervals Ⅰ、 Ⅱ and Ⅲ of the Lower Member of Xingouzui Formation in Mawangmina area. The results indicate that there were 2 provenanees which were from northeast and northwest during the depositional period of the Lower Member of Paleogene Xingouzui Formation. The provenanee sedimernts were distributed towards southwest and southeast. The delta plain, delta front and prodelta, were developed which were dominated by the subaqueous distributary channel and sheet-like sands microfacies,shore-shallow laeuslrine deposit were distributed surrounding the two delta sandbodies, Meanwhile, the water depth changed from shallow to deep then shallow level. During the depositionsl period of the interval Ⅲ and Ⅱ, the delta sandbody were widely distributed and the reservoir were well developed.关键词
江汉盆地/马王庙地区/新沟嘴组/单因素分析多因素综合作图法/沉积相Key words
Jianghan Basin/ mawangmiao area/ Xingouzui Formation/ single factor analysis and multfactor comprehensive mapping method/ sedimentary facies分类
天文与地球科学引用本文复制引用
谢春安,胡明毅,贾秀容,胡忠贵..江汉盆地马王庙地区古近系新沟嘴组下段沉积相及其演化[J].古地理学报,2011,13(2):209-220,12.基金项目
中石化委托科研项目"潜南地区新沟嘴组下段沉积相及砂体展布规律研究"(编号:G0601-09-ZS-0034)资助 （编号:G0601-09-ZS-0034）
