贵州盘县晚二叠世潮坪相沉积特征Upper Permian Series Tidal Flat Facies Sedimentary Characteristics in Panxian, Guizhou
王先超,范士彦,邵玉宝,王怀勐
摘要(Abstract)：
通过对贵州盘县上二叠统钻井资料的研究分析,基于沉积岩石学、沉积学、古生物地史学及沉积地球化学等相标志识别出潮坪沉积以陆源碎屑沉积为主,可细分为砂坪、混合坪、泥坪、泥炭坪和潮沟等5种微相。分析认为:潮坪沉积发育海退型进积层序,沉积物粒度整体较细,分选性较好,发育潮汐层理;混合坪、泥坪、泥炭坪微相泥岩中V/(V+Ni)、Sr/Ba、U/Th、V/Cr、Ni/Co、Ceanom等地球化学参数指示了各微相沉积水体的缺氧-贫氧-氧化状态、贫氧-氧化状态和还原-贫氧-缺氧-氧化状态,与地质背景吻合性好。
关键词(KeyWords)： 上二叠统;潮坪相;贵州盘县
基金项目(Foundation):
作者(Author): 王先超,范士彦,邵玉宝,王怀勐
参考文献(References)：
- [1]徐彬彬,何明德.贵州煤田地质[M].江苏徐州:中国矿业大学出版社,2003.
- [2]夏文臣,要庆军,初志民,等.黔西晚二叠世中潮坪——潮道相沉积构成及环境解释[J].煤田地质与勘探,1988,(5):1-11.
- [3]赵时久,陈家怀,陈善庆.滇东田坝黔西土城晚二叠世煤系上段沉积相及含煤性[J].沉积学报,1988,6(4):62-71.
- [4]邵龙义,张鹏飞,陈代钊,等.滇东黔西晚二叠世早期辫状河三角洲沉积体系及其聚煤特征[J].沉积学报,1994,12(4):132-139.
- [5]肖建新.一种低能障壁-潟湖含煤沉积体系——以贵州织金晚二叠世煤系上部为例[J].煤田地质与勘探,1997,25(4):1-3.
- [6]陈代钊.河流沉积占优势地层中高频层序地层——以贵州盘县西部龙潭组为例[J].地质科学,1997,32(4):432-444.
- [7]黄昔容,陶述平.贵州织金地区晚二叠世的沉积环境分析[J].贵州地质,1999,16(4):301-306.
- [8]熊孟辉.贵州五轮山矿区煤层气地质条件及资源潜力[D].江苏徐州:中国矿业大学,2006,1-124.
- [9]Wang H,Shao L Y,Hao L M,et al.Sedimentology and sequence stratigraphy of the Lopingian(Late Permian)coal measures in southwestern China[J].International Journal ofCoal Geology,2011,(85):168-183.
- [10]王小川.黔西川南滇东晚二叠世含煤地层沉积环境与聚煤规律[M].重庆:重庆大学出版社,1996.
- [11]桂宝林.黔西滇东煤层气地质与勘探[M].昆明:云南科技出版社,2001.
- [12]邵玉宝.黔西盘县上二叠统沉积相与层序地层研究[D].江苏徐州:中国矿业大学,2012.
- [13]SHAO Yu Bao,GUO Ying Hai,QIN Yong,et al.Distribution characteristic and geological significance of rare earth elements in Lopingian mudstone of Permian,Panxian County,Guizhou Province[J].Mining Science and Technology(China),2011,21(4):469-476.
- [14]HATCH J R,Leventhal J S.Relationship between inferred redox potential of the depositional environment and geochemistry of the Upper Pennsylvanian(Missourian)Stark Shale Member of the Dennis Limestone.Chemical Geology,1992,(99):65-82.
- [15]JONES B,Manning D A C.Comparion of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones[J].Chemical Geology,1994,111(1-4):111-129.
- [16]Elderfield H,Greaves M J.The rare earth elements in seawater[J].Nature,1982,296(18):214-219.