用户名: 密码: 验证码:
广元地区上三叠统须家河组沉积体系与层序地层学研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本文采用沉积学、岩石学、层序地层学、测井以及地震等多学科相结合的方法与手段,研究了广元地区上三叠统须家河组沉积体系,分析了沉积特征。对广元工农镇露头剖面进行了层序地层学研究,并建立了区域层序地层格架,进而以三级层序为基础,分析了广元—元坝地区的层序—岩相古地理特征及演化,具体步骤及成果如下:
     首先在收集众多前人资料基础上,通过对广元地区上三叠统须家河组露头剖面、钻井岩心和大量测井资料的观察、分析、研究,提取出岩石学特征、沉积构造、电测曲线、剖面结构以及粒度特征等沉积相标志,从上三叠统须家河组中划分出冲积扇、河流、湖泊三角洲、湖泊、海相三角洲和有障壁海岸等6个沉积体系,详细描述和综合归纳了各沉积体系及其沉积亚相和微相的特征。并进一步得出了2种相应的沉积模式,须家河组一段至二段主要为海陆过渡相→海相的沉积模式,由海相三角洲、海湾、障壁海岸与浅海组合。须家河组三段至五段总体上发育由盆地边缘冲积扇经河流到三角洲或扇三角洲再到湖泊的沉积模式,随盆地的时空变化而有所变化,可细分为两种沉积模式,即(1)冲积扇→辨状河三角洲→湖泊的模式和(2)冲积扇→扇三角洲→湖泊的模式。
     运用陆相层序地层学的方法对研究区须家河组进行了层序地层学研究。以不整合面为界限确定了层序界面,将广元地区须家河组划分出3个构造层序(TS1、TS2和TS3)和5个三级层序(SQ1、SQ2、SQ3、SQ4和SQ5),SQ1对应TS1,SQ2和SQ3对应TS2,SQ4和SQ5对应TS3。须5段对应的层序SQ5由于龙门山隆升作用所以在广元工农镇地区缺失,深入探讨了层序特征。并建立了广元工农镇—元坝地区的南北向的层序地层对比格架。
     以Ⅲ级层序为编图单元,根据研究区内重点钻井沉积相的划分,编制了广元—元坝地区上三叠统须家河组层序-岩相古地理图,详细描述了各期层序岩相古地理特征及其演化。
This artiele uses sedimentology, sequenee stratigraphy, petrology, logging, seismie and combination of mult-disciplinary to reseach sedimentary features and analyze the deposition types of the Xujiahe formation of the Upper Triassic Series in Guangyuan area. It reserches the sequence stratigraphy of outcropping profile, then establishing sequence stratigraphic framework and further based on depositional sequence analyzes sequence-based lithofacies palaeogeographic features of Guangyuan to Yuanba area, concrete steps and results are as follows:
     Firstly, On the basis of lots of forerunners’data and my research in this thesis, Combining drilling data with observation and analysis of the well core, Xujiahe formation can be divided into six kinds of sedimentary systems such as alluvial fan, river, lake delta, lake, marine delta and beach-barrier by using sedimentary facies signs which is rock feature, sedimentary structure, well log and section texture, Each of the sedimentary systems was subdivided into several subfacies and microfacies, which were described and generalized in detail. By generalizing, I conclude that two relevant sedimentation model of Guangyuan area to Yuanba area. The first sedimentation model is transitional facies- marine facies in Xujiahe formation one-two section, which is made up of marine delta, bay, beach-barrier and epeiric sea. The second sedimentation model is alluvial fan-river-delta or fan delta-lake in Xujiahe formation three-five section, which is changed along with the time and space alter of basin. Further, it can be subdivided into two sedimentation model. The one: alluvial fan-river(alluvial plain)-braid river delta-lake. The second: alluvial fan-fan delta-lake.
     On the basis of analysis on seismic sequence, defining the stratic interface by the surface of unconformity, this paper divids the Xujiahe Formation of outcropping cut plane in Guangyuan Gongnong town into three tectonic sequence and five sedimentary sequence, and also deeply investigates the characteristics of all levels sequence. It establishes sequence stratigraphic framework of the Xujiahe Formation of the Upper Triassic in Guangyuan Gongnong town to Yuanba area.
     The sequence-based lithofacies-paleogeographic maps of the Xujiahe Formation of the Upper Triassic in study area are compiled by choosing sedimentary sequence as the isochronous mapping unit. This paper demonstrats in details the characteristics of lithofacies aleogeography and their evolution during different sedimentary sequence developing period.
引文
[1] A.W.Ba11y and S.Snelson, (1980), Realms of subsidence, In: Facts and principles of world Petrolesim occurrence (Ed. By A.D.Miall)Men、Can. Soc. Petro. Geo1. 6. 9-75.
    [2] Cao Yingchang, Jiang Zaixing. Application of high resolutuion sequence stratigraphy to Linpan Oilfield. Proceedings of 30th International Geological Congress. 1996.
    [3] Cross T A. High-resolution stratigraphic correlation from the perspective of base-level cycles and sediment accommodation, in: preedings of Northwestern European sequence stratigraphy congree. 1994. 105-123.
    [4] Galloway W E. Genetic stratigraphic sequences in basin analysis architecture and genesis of flooding-surface bounded depositional units[J]. AAPG, 1989, 73: 125-142.
    [5] J.G.Johnson, G.Klapper and C.A.Sandberg.Devonian eustatic fluctuation in Eurameria[J]. Geological Soeitery of Ameriea Balletin, 1985, 96.
    [6] Jiang Zaixing, Cao Yingchang.Application of high resolution sequence stratigraphy to precise lacustrine reservoir correlations with an example from Linpan Oilfield[J]. Sedimentary of China, 1998, 16(2).
    [7] Jiang Zaixing.Sequence stratigraphic division and models for Bohai Bay Basin. Proceedings of 30th International Geological Congress. 1996.
    [8] Posamentier H W, Vail P R.Eustatic controls on clastic deposition II-sequence and system tract model[A]. Sea-level Changes:an Integrated Approach[C]. Society of Economic Paleontologists and Mineralogists, Special Publication, SEPM, 1988, 42: 109-124.
    [9] Sloss L L. Sequences in the cratonic interior of North America[J]. Geological Society of American Bulletin, 1963, 74: 93-114.
    [10] Vail P R. Seismic stratigraphy interpretation using sequence stratigraphy. Part1: seismic stratigraphy interpretation procedure[A]. In: Bally A W,ed. Atlas of seismic stratigraphy[C]. AAPG,Studies in Geology, 1987, 27: 11-18.
    [11]陈洪德,钱奕中,刘文均.层序地层学理论及研究方法[M].成都.四川科学技术出版社,1994
    [12]陈建强,于炳松.塔里木地台北部寒武系层序地层研究进展[J].现代地质.2001(03).
    [13]池英柳.陆相断陷盆地层序成因初探[J].石油学报,1996,17(3):19-26.
    [14]邓宏文,王洪亮,李熙.层序地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177-183.
    [15]邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89-97.
    [16]方石,等.河流相层序地层学研究[J].世界地质,2000,19(2):132-137.
    [17]冯有良.东营凹陷下第三系层序地层格架及盆地充填模式[J].中国地质大学学报,1999,24(6):635-642.
    [18]顾家裕,张兴阳.油气沉积学发展回顾和应用现状[J].沉积学报,2003,21(1):137-141.
    [19]顾家裕.陆相盆地层序地层学格架概念及模式[J].石油勘探与开发,1995,22(4):6-10
    [20]关士聪,等.中新生代陆相盆地发育与油气[M].北京:石油工业出版社,1987.
    [21]郭建华,等.陆相断陷湖盆T-R旋回沉积层序与研究实例[J].沉积学报,1998,16(1):8-14.
    [22]郭正吾,灯康龄,韩永辉.四川盆地形成与演化[M]. 1994,北京,地质出版社.
    [23]何登发,吕修详等,前陆盆地分析〔M].1996,北京,石油工业出版社.
    [24]侯方浩,蒋欲强,方少仙,等.四川盆地上三叠统香溪组二段和四段砂岩沉积模式[J].石油学报,2005,26(2):30-37.
    [25]纪友亮,张立强,张继果.沾化凹陷孤岛东部斜坡下第三系层序地层学[J].石油大学学报(自然科学版),1998,22(6):34-38.
    [26]纪友亮,张世奇.层序地层学原理及层序成因机制模式[M].北京:地质出版社,1998
    [27]姜在兴,等.层序地层学原理及应用[M].北京:石油工业出版社,1996.
    [28]库丽曼,刘树根,张长俊,等.川中地区上三叠统须家河组二段和四段沉积相[J].油气地质与采收率.2007,14(2)
    [29]李华启.四川盆地西部上三叠统须家河组层序地层学及沉积体系研究[D].中国科学院广州地球化学研究所,2003.
    [30]李丕龙,等.陆相断陷盆地油气地质与勘探:陆相断陷盆地构造演化与构造样式(卷一)[M].北京:石油工业出版社,2003.
    [31]李思田,林畅松.大型陆相盆地层序地层学研究——以鄂尔多斯中生代盆地为例[J].地
    [32]李思田,林畅松.大型陆相盆地层序地层学研究——以鄂尔多斯中生代盆地为例[J].地学前缘,1995,2(4):133-136.
    [33]李思田,杨士恭,林畅松.论沉积盆地的等时地层和基本构造单元[J].沉积学报,1992,10(4).
    [34]李勇,曾允孚.龙门山前陆盆地沉积及构造演化[M],成都:成都科技大学出版社, l995.
    [35]林畅松,李思田,任建业.断陷湖盆层序地层研究和计算机模拟——以二连盆地乌里雅斯太断陷为例[J].地学前缘,1995,2(2-3):124-131.
    [36]林良彪.川西前陆盆地上三叠统须家河组沉积相及岩相古地理演化[D].成都理工大学,2005.
    [37]刘宝珺,曾允孚.岩相古地理基础和工作方法[M].北京:地质出版社,1985.
    [38]刘宝珺,等.沉积岩石学[M].北京:地质出版社,1980.
    [39]刘宝珺,许效松,徐强.扬子东南大陆边缘晚元古代-早古生代层序地层和盆地动力演化[J].岩相古地理.1995(03).
    [40]刘和甫,梁慧社等.川西龙门山冲断系构造样式与前陆盆地演化[J],地质学报, 1994,68(2): 102-108.
    [41]刘建民,李阳,关振良,等.孤岛地区馆陶组河流沉积地层的高分辨率层序地层样式[J].石油勘探与开发,2000,27(6):31-32.
    [42]刘树根,罗志立等.评述“前陆盆地”名词在中国中西部含油气盆地中的引用[J].地质论评,2002, 48(4): 398-407.
    [43]刘树根,罗志立等.中国西部盆山系统的祸合关系及其动力学模式[J].地质学报, 2003,77(2): 177-186.
    [44]刘树根.龙门山冲断带与川西前陆盆地的形成与演化[M]. 1993,成都:成都科技大学出版社.
    [45]罗启后.王世谦.四川盆地中西部三叠系重点含气层系天然气富集条件研究[J].天然气工业,1996,(S1):40-54
    [46]罗志立,刘树根等.试论C-型俯冲带对中国中西部造山带形成的作用,龙门山造山带的崛起和四川盆地的形成与演化[M]. 1993,成都:成都科技大学出版社.
    [47]梅冥相,马永生,邓军,etal.从旋回到层序:华北地台晚寒武世层序地层及相对海平面变化[J].地质学报.2005(03).
    [48]梅冥相,马永生,邓军,etal.滇黔桂盆地及其邻区石炭纪至二叠纪层序地层格架及三级海平面变化的全球对比[J].中国地质.2005(01).
    [49]梅冥相,马永生,高金汉,etal.滇黔桂盆地及其邻区晚古生代层序地层格架及相对海平面变化[J].现代地质.2002(04).
    [50]梅冥相,马永生.从旋回层序的特征论地层记录的两种相变面及两种穿时性[J].地层学杂志.2001(02).
    [51]梅冥相,马永生.华北北部晚寒武世层序地层及海平面变化研究——兼论与北美晚寒武世海平面变化的对比[J].地层学杂志.2001(03).
    [52]梅冥相,马永生.华北地台晚寒武世层序地层及其与北美地台海平面变化的对比[J].沉积与特提斯地质.2003(04).
    [53]梅冥相,徐德斌.沉积地层旋回性记录中几个理论问题的认识[J].现代地质.1996(01).
    [54]梅冥相,郑宽兵,初汉民,etal.滇黔桂盆地及邻区二叠纪层序地层格架及古地理演化[J].古地理学报.2004(04).
    [55]梅冥相.从地层记录的特性论岩石地层学的困惑[J].地层学杂志.1996(03).
    [56]梅冥相.从近年来我国地层学的可喜进展谈地层学方法论[J].地层学杂志.2002(02).
    [57]梅冥相.从岩石成因论华北地台“霍山砂岩”的时代归属[J].地层学杂志.1993(03).
    [58]蒲仁海.断陷盆地层序地层学的几点进展[J].石油与天然气质,2002,23(4):410-414.
    [59]瞿辉,徐怀大,郭齐军.塔里木盆地北部奥陶系层序地层研究[J].现代地质.1997(01).
    [60]史晓颖,陈建强,梅仕龙.中朝地台奥陶系层序地层序列及其对比[J].地球科学-中国地质大学学报.1999(06).
    [61]史晓颖.中朝地台寒武系层序地层对比及寒武/奥陶系最佳自然界线[J].现代地质.1999(02).
    [62]四川省地矿局.1:5万区域地质调查报告:广元市幅,朝天幅,曾家幅,盐井幅,檬子幅,关坝幅,吴家娅幅,国华幅,楠木幅,南江幅等,1999,成都理工大学和四川省国土资源厅.
    [63]四川省地矿局和陕西省地矿局区调队.1:20万区域地质调查报告:广元幅,间中幅,南江幅,通江幅,仪陇幅,广安幅,南充幅,达县幅,镇巴幅,紫阳幅,1960-1980,四川省和陕西省国土资源厅.
    [64]孙肇才,中国中西部中、新生代界前陆类盆地及其含油气性[R]. 2000,九江油气盆地研究新进展学术研讨会,交流材料.
    [65]王东坡,刘立.大陆裂谷盆地层序地层学的研究[J].岩相古地理,1994,14(3)1-9.
    [66]王鸿祯,史晓颖.沉积层序及海平面旋回的分类级别—旋回周期的成因讨论[J].现代地质.1998(01).
    [67]魏魁生,徐怀大,雷怀玉等.非海相层序地层学--以松辽盆地为例[M].北京:地质出版社,1996
    [68]魏魁生,徐怀大,叶淑芬.鄂尔多斯盆地北部奥陶系碳酸盐岩层序地层研究[J].中国地质大学学报,1996,21(1):1-9.
    [69]魏魁生,徐怀大,叶淑芬.鄂尔多斯盆地北部下古生界层序地层分析[J].石油与天然气地质.1997(02).
    [70]魏魁生,徐怀大,叶淑芬.四川盆地层序地层特征[J].石油与天然气地质,1997,18(2).
    [71]魏魁生,徐怀大.二连盆地白垩系非海相沉积层序地层特征[J].中国地质大学学报,1994,19(2):181-193.
    [72]魏魁生,叶淑芬,郭占谦.松辽盆地白垩系非海相沉积层序模式[J].沉积学报,1996,14(4):50-58.
    [73]魏魁生.层序地层学教学中的点滴体会[J].中国地质教育.2000(02).
    [74]徐怀大,等译.层序地层学原理(海平面变化综合分析)[M].北京:石油工业出版社,1993.
    [75]徐怀大.从地震地层学到层序地层学[M].北京:石油工业出版社,1994
    [76]徐怀大.陆相层序地层学研究中的某些问题[J].石油与天然气地质,1997, 18(2):83-89.
    [77]徐强,姜烨,董伟良,etal.中国层序地层研究现状和发展方向[J].沉积学报.2003(01).
    [78]徐效松,刘宝珺,徐强,潘桂棠等.中国西部大型盆地分析及地球动力学[M]. 1997,北京;地质出版社.
    [79]于炳松.塔里木盆地北部寒武—奥陶纪层序地层格架[J].矿物学报.1996(03).
    [80]于炳松.塔里木盆地北部寒武—奥陶纪层序年代地层体制[J].现代地质.1996(01).
    [81]于炳松.塔里木盆地北部中下奥陶统碳酸盐陆棚—盆地的层序地层分析[J].矿物岩石.1995(03).
    [82]袁选俊,薛叔浩.南堡凹陷第三系沉积特征及层序地层学研究[J].石油勘探与开发,1994,21(4):87-94.
    [83]赵国连.层序地层学的研究现状[J].沉积与特提斯地质.2000(03).

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700