新疆塔里木板块巴麦地区志留系对比与时空分布
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摘要
塔里木板块巴麦地区志留系钻井岩芯中的化石十分贫乏,很难作高精度地层划分和对比。本文综合分析柯坪-巴楚露头区及巴麦覆盖区典型钻井志留系,对巴麦地区多口主要钻井志留系岩电特征对比厘定。井下志留系自下而上可划分为早志留世柯坪塔格组、塔塔埃尔塔格组及依木干他乌组。柯坪塔格组仅发育上段,缺失中-下段,主要见于D5-B7-C2井以北地区,厚度一般在200m左右,具有北厚南薄、东厚西薄的变化;塔塔埃尔塔格组地层序列较全,均发育下部的红泥岩段与上部的上砂岩段,主要见于D5-B7-C2井以北地区,厚度一般在400m左右,最厚可大于1 000m,由南向北变厚;依木干他乌组序列较全,分布于C2-B8-C7井西部及C1-B4-B1井以北,厚度一般在200m左右,具有北厚南薄、西厚东薄的特点,最厚可达300m以上。
Stratigraphic correlation of Silurian is difficult at wells in the Bamai region,Tarim Basin,Wchina due to few fossil occurrence.The present paper focus on subdivision and correlation of the Silurian sequences according to the log data both from wells and outcrops.The Silurian strata in Bamai can be subdivided into the Kepingtage,Tataaiertage and Yimugantawu Formations in ascending order.The lower and middle members of the Kepingtage Formation are mostly absent,and only the upper member is recognized.The Kepingtage Formation is mainly occurred in northernward of the wells of D_5,B_7 and C_2.The thicknesses are about 200 m with increasing northward and eastward.The Tataaiertage Formation is composed of the lower red mudstone member and upper sandstone member with thickness about 400 mand maximum of 800～1 000 mincreasing northward.The Tataaiertage Formation occurred in the northward of the wells of the D_5,B_7 and C_2.The Yimugantawu Formation covers a region in west of the wells of C_2,B_8 and C_7and C_1,B_4 and B_1 with thickness about 200 mand maximum of 300 mincreasing northward and westward.
Stratigraphic correlation of Silurian is difficult at wells in the Bamai region,Tarim Basin,Wchina due to few fossil occurrence.The present paper focus on subdivision and correlation of the Silurian sequences according to the log data both from wells and outcrops.The Silurian strata in Bamai can be subdivided into the Kepingtage,Tataaiertage and Yimugantawu Formations in ascending order.The lower and middle members of the Kepingtage Formation are mostly absent,and only the upper member is recognized.The Kepingtage Formation is mainly occurred in northernward of the wells of D_5,B_7 and C_2.The thicknesses are about 200 m with increasing northward and eastward.The Tataaiertage Formation is composed of the lower red mudstone member and upper sandstone member with thickness about 400 mand maximum of 800～1 000 mincreasing northward.The Tataaiertage Formation occurred in the northward of the wells of the D_5,B_7 and C_2.The Yimugantawu Formation covers a region in west of the wells of C_2,B_8 and C_7and C_1,B_4 and B_1 with thickness about 200 mand maximum of 300 mincreasing northward and westward.
引文
王成林,张惠良,李玉文等,2007.塔里木盆地志留系划分、对比及其地质意义.新疆石油地质,28(2):185-188
皮学军,刘楚雄,陈颖等,2007.新疆柯坪大湾沟奥陶系顶部-志留系底部化学地层特征讨论.北京大学学报(自然科学版),43(2):183-189
江大勇,皮学军,孙作玉等,2006.新疆柯坪大湾沟剖面柯坪塔格组中段底部笔石生物地层初步分析.地层学杂志,30(3):253-257
江大勇,郝维城,白顺良等,2001.新疆塔里木盆地晚奥陶世-早石炭世地层划分对比研究新突破.北京大学学报(自然科学版),37(4):529-536
张师本,倪寓南,龚福华等,2003.塔里木盆地周缘地层考察指南.北京:石油工业出版社.281-362
张师本,高琴琴,陈钦保等,1996.塔里木盆地西北缘志留-泥盆纪地层研究新进展.见:童晓光,梁狄刚,贾承造(主编),塔里木盆地石油地质研究新进展.北京:科学出版社.54-66
张师本,高琴琴,耿良玉等,2001.志留系.见:周志毅(主编),塔里木盆地各纪地层.北京:科学出版社.81-102,344-345
贾承造,张师本,吴绍祖等著,2003.塔里木盆地及周边地层(上册).北京:科学出版社.1561-1575
蔡习尧,窦丽玮,王怿等,2012.塔里木盆地沙雅隆起托甫2井志留系划分对比.岩石学报,28(8):2584-2590.
CAI Xiyao,DOU Liwei,WANG Yi et at.,2012.Classification and correlation of Silurian of Well TP2in Shaya Rise,Tarim Basin.Acta Petro logica Sinica,28(8):2584-2590(in Chinese with English abstract)
JIA Chengzao,ZHANG Shiben,WU Shaozu et al.,2003.Stratigraphy of the Tarim Basin and adjacent areas.Beijing:Science Press.1561-1575(in Chinese with English summary)
JIANG Dayong,HAO Weicheng,BAI Shunliang et al.,2001.New progress of the study on Late Ordovician-Early Carboniferous stratigraphic division and correlation in Tarim Basin,Xinjiang.Acta Scientiarum Naturalium Universitatis Pekinensis,37(4):529-536(in Chinese with English abstract)
JIANG Dayong,PI Xuejun,SUN Zuoyu et al.,2006.Report on graptolite biostratigraphy of the basal part of the middle member of the Kepingtage Formation at Dawangou section,Keping,Xinjiang.Journal of Stratigraphy,30(3):253-257(in Chinese with English abstract)
PI Xuejun,LIU Chuxiong,CHEN Ying et al.,2007.Discussion on chemo-stratigraphic characteristics of boundary bed between the top part of the Ordovician and the basal part of the Silurian at Dawangou section,Keping,Xinjiang.Acta Scientiarum Naturalium Universitatis Pekinensis,43(2):183-189(in Chinese with English abstract)
WANG Chenglin,ZHANG Huiliang,LI Yuwen et al.,2007.Stratigraphic Division,Correlation and Geologic Significance of Silurian in Tarim Basin.Xinjiang Petroleum Geology,28(2):185-188(in Chinese with English abstract)
ZHANG Shiben,GAO Qinqin,CHEN Qinbao et al.,1996.Silurian-Devonian stratigraphic research advances in the northwestern margin of Tarim Basin.In:TONG Xiaoguang,LIANG Digang,JIA Chengzao(eds.),Research advances of Petroleum Geology of Tarim Basin.Beijing:Science Press.54-66(in Chinese with English abstract)
ZHANG Shiben,GAO Qinqin,GENG Liangyu et al.,2001.Silurian.In:ZHOU Zhiyi(ed.),Stratigraphy of the Tarim Basin.Beijing:Science Press.81-102,344-345(in Chinese with English abstract)
ZHANG Shiben,NI Yunan,GONG Fuhua et al.,2003.A Guide to the stratigraphic investigation on the periphery of the Tarim Basin.Beijing:Petroleum Industry Press.281-362(in Chinese with English abstract)
皮学军,刘楚雄,陈颖等,2007.新疆柯坪大湾沟奥陶系顶部-志留系底部化学地层特征讨论.北京大学学报(自然科学版),43(2):183-189
江大勇,皮学军,孙作玉等,2006.新疆柯坪大湾沟剖面柯坪塔格组中段底部笔石生物地层初步分析.地层学杂志,30(3):253-257
江大勇,郝维城,白顺良等,2001.新疆塔里木盆地晚奥陶世-早石炭世地层划分对比研究新突破.北京大学学报(自然科学版),37(4):529-536
张师本,倪寓南,龚福华等,2003.塔里木盆地周缘地层考察指南.北京:石油工业出版社.281-362
张师本,高琴琴,陈钦保等,1996.塔里木盆地西北缘志留-泥盆纪地层研究新进展.见:童晓光,梁狄刚,贾承造(主编),塔里木盆地石油地质研究新进展.北京:科学出版社.54-66
张师本,高琴琴,耿良玉等,2001.志留系.见:周志毅(主编),塔里木盆地各纪地层.北京:科学出版社.81-102,344-345
贾承造,张师本,吴绍祖等著,2003.塔里木盆地及周边地层(上册).北京:科学出版社.1561-1575
蔡习尧,窦丽玮,王怿等,2012.塔里木盆地沙雅隆起托甫2井志留系划分对比.岩石学报,28(8):2584-2590.
CAI Xiyao,DOU Liwei,WANG Yi et at.,2012.Classification and correlation of Silurian of Well TP2in Shaya Rise,Tarim Basin.Acta Petro logica Sinica,28(8):2584-2590(in Chinese with English abstract)
JIA Chengzao,ZHANG Shiben,WU Shaozu et al.,2003.Stratigraphy of the Tarim Basin and adjacent areas.Beijing:Science Press.1561-1575(in Chinese with English summary)
JIANG Dayong,HAO Weicheng,BAI Shunliang et al.,2001.New progress of the study on Late Ordovician-Early Carboniferous stratigraphic division and correlation in Tarim Basin,Xinjiang.Acta Scientiarum Naturalium Universitatis Pekinensis,37(4):529-536(in Chinese with English abstract)
JIANG Dayong,PI Xuejun,SUN Zuoyu et al.,2006.Report on graptolite biostratigraphy of the basal part of the middle member of the Kepingtage Formation at Dawangou section,Keping,Xinjiang.Journal of Stratigraphy,30(3):253-257(in Chinese with English abstract)
PI Xuejun,LIU Chuxiong,CHEN Ying et al.,2007.Discussion on chemo-stratigraphic characteristics of boundary bed between the top part of the Ordovician and the basal part of the Silurian at Dawangou section,Keping,Xinjiang.Acta Scientiarum Naturalium Universitatis Pekinensis,43(2):183-189(in Chinese with English abstract)
WANG Chenglin,ZHANG Huiliang,LI Yuwen et al.,2007.Stratigraphic Division,Correlation and Geologic Significance of Silurian in Tarim Basin.Xinjiang Petroleum Geology,28(2):185-188(in Chinese with English abstract)
ZHANG Shiben,GAO Qinqin,CHEN Qinbao et al.,1996.Silurian-Devonian stratigraphic research advances in the northwestern margin of Tarim Basin.In:TONG Xiaoguang,LIANG Digang,JIA Chengzao(eds.),Research advances of Petroleum Geology of Tarim Basin.Beijing:Science Press.54-66(in Chinese with English abstract)
ZHANG Shiben,GAO Qinqin,GENG Liangyu et al.,2001.Silurian.In:ZHOU Zhiyi(ed.),Stratigraphy of the Tarim Basin.Beijing:Science Press.81-102,344-345(in Chinese with English abstract)
ZHANG Shiben,NI Yunan,GONG Fuhua et al.,2003.A Guide to the stratigraphic investigation on the periphery of the Tarim Basin.Beijing:Petroleum Industry Press.281-362(in Chinese with English abstract)