淮南煤田二叠系高分辨率层序地层学特征HIGH-RESOLUTION SEQUENCE STRATIGRAPHIC CHARACTERSTICS IN THE PERMIAN FROM HUAINAN COALFIELD
李增学,魏久传,金秀昆
摘要(Abstract)：
在对淮南煤田二叠系不同周期地层基准面旋回识别和分析的基础上 ,进行了层序地层划分 ,尤其是进行了二叠系四级、五级高分辨率层序的识别与划分。淮南煤田二叠系三级层序内部具有明显的三分性 ,即一个三级层序由底部的低水位体系域、中部的水进体系域和上部的高水位体系域构成。其中水进体系域较薄 ,而低水位体系域和高水位体系域较厚 ,这说明华北南部二叠纪聚煤盆地基准面以下降周期为主导 (持续时间较长 ) ,水进 (盆地水域扩张 )期持续时间较短。基准面升降高频振荡性的变化 ,使盆地沉积环境发生频繁交替 ,从而导致盆地聚煤作用发生高频率变化。淮南煤田二叠系发育煤层达 2 6层之多 ,就是盆地基准面升降高频性变化的结果。研究表明 ,具有工业价值的煤层主要形成于高水位体系域。
关键词(KeyWords)： 高分辨率层序;地层基准面旋回;二叠系;淮南煤田;安徽
基金项目(Foundation): 煤炭科学基金资助项目!(97地 10 5 0 7)部分成果
作者(Author): 李增学,魏久传,金秀昆
参考文献(References)：
- 邓宏文 ,1995 .美国层序地层研究中的新学派——高分辨率层序地层学 .石油与天然气地质 ,16 (2 ) :89— 97.
- 宋衍文 ,朱忠德 ,肖传桃 ,吴智勇 ,1995 .全息地层学——新的挑战 .石油与天然气地质 ,16 (2 ) :110— 118.
- 李思田 ,林畅松 ,李 祯 ,杨士恭 ,解习农 ,1993.含煤盆地层序地层分析的几个基本问题 .煤田地质与勘探 ,2 1(3) :1— 10 .
- 李增学 ,1994.内陆表海聚煤盆地的层序地层分析 .地球科学进展 ,9(6 ) :6 5— 70 .
- 李增学 ,魏久传 ,李守春 ,李青山 ,1996 .内陆表海含煤盆地 级层序的划分原则及基本构成特点 .地质科学 ,31(2 ) :186— 192 .
- 李增学 ,魏久传 ,王明镇 ,李守春 ,1996 .华北南部晚古生代陆表海盆地层序地层格架与海平面变化 .岩相古地理 ,16 (5 ) :1— 11.
- 雷建雄 ,1998.高分辨率层序地层学 .岩相古地理 ,18(3) :5 5— 6 6 .
- 韩树芬 ,1990 .两淮地区成煤条件及成煤预测 .北京 :地质出版社 .1— 13.
- Aitken JF & F lint S S,1995 .The application of high-resolution se-quence stratigraphy to fluvial systems;a case study from theUpper Carboniferous Breathitt Group,Eastern Kentucky U SA.Sedimentology,42 :3— 30 .
- Cross T A,1994.High-resolution stratigraphic correlation from theperspective of base-level cycles and sediment accommodation.In:Precedings of Northwestern European Sequence StrtigraphyCongress. 10 5 -12 3.
- Davies S J& Elliott T,1996 .Spectral gam ma-ray characterization ofhigh resolution sequence stratigraphy:examples from Vper Car-boniferous fluvio deltaic system s,Country Vlave,Irland.In:Howell J A & Aitken J F eds.,High resolution sequencestratigraphy:innovations and applications. Geological SocietSpecial Publication,10 4:2 5— 36 .
- Dalrymple R W & Zaitlin B A,1994.High-resolution sequencestratigraphy of a complex,incised valley succession cobequidBay-salmen River Estuary,Bay of Fundy,Canada.Sedimentolo-gy,41:10 6 9— 10 91.
- Helland-Hansen W & Glilberg JG,1994.Conceptual basis and vari-ability in sequence stratigraphy:a Different perspective.Sedi-mentary Geology,92 :31— 5 2 .
- L i Zeng-xue,Wei Jiu-chuan,Li Shou-chun,Wang Ming-zhen &Zhang Xi-qi,1997.The characteristics of sequence stratigraphyin the epicontinental basin.Proceedings30 th Int'l Congr.,8:14 1— 15 1.
- L i Zeng-xue,Wei Jiu-chuan,Wang Ming-zhen & Li Shou-chun,1996 .Extension of sequence stratigraphic model and sequencestratigraphic analysis in lim nic depositional basin.Journal ofCoal Science & Egineering(China) ,2 (2 ) :1— 8.
- Mitcham R M & Van Wagoner J C,1991.High-frequence and theirstacking patterns:sequence stratigraphic evidence of high-fre-quency eustatic cycles.Sedimentary Geology,70 :131— 16 0 .
- Mitchell S F ,Paul C R & Gale A S,1996 .Carbon isotopes and se-quence statigraphy.In:Howell T A & Aitken JK eds.,Highresolution sequence stratigraphy :innovations and applications.Geological Society Special Publication,10 4:11— 2 4.
- Nam medal D,Riley G W & Tem plet P L,1993.High resolution se-quence architecture:a chronostratigraphic model based on Equi-librium Profile studies.In:Posementier H W,Sum merhayes CP,Haq B V et al.,Sequence stratigraphy and faces associa-tions.Intennational Association of Sedimentologists SpecialPublication,18:5 5— 6 8.
- Van Wogoner JC,Mitchum R M,Campian R M & Rahmanian V D,1991.Siliciclatic sequence stratigraphy in well logs,cores,andoutcorps:concepts for high-resolution correlation of tim e andfacies.AAPG Methods in Exploration Series,7:1— 5 5 .