蓟县地区雾迷山组硅质岩成因研究

永颉同心

摘　要：中晚元古代华北地台处于燕辽拗拉谷的张裂期,有利于形成风暴流.蓟县雾迷山组广泛发育风暴沉积,在硅质条带白云岩中发育硅质砾屑具奇特的菊花状构造,这种构造形成于成岩作用后期,在尚未完全固结成坚硬的岩石时期,遭遇风暴破坏,将原有水平层理打碎,继而被风暴流搅起,风暴流的涡动使得岩石碎片直立,或者呈发散状,后经成岩作用保留了这种构造形态,与上下岩层形成典型的风暴沉积序列.通过野外与镜下观察并结有机地球化学分析得出,蓟县地区雾迷山组硅质条带白云岩发育典型的风暴沉积序列和挤压滑塌序列,风暴硅质岩具丘状形态,内部菊花状构造为近源风暴产物,其中硅质岩来源于海底热水活动.沉积环境推测为碳酸盐台地前缘斜坡.
关键词：硅质岩;风暴序列;雾迷山组

基金项目：国际地质对比计划IGCP447项目(编号:SC/GEO/546/447)、科技部国家重点基础研究项目(001CB7 11002),国家自然科学基金(批准号:40172043,40572073)和中国地质调查局项目(编号:200313000055)资助.
作者简介：任国选 男 1980年出生 在读博士 矿产普查与勘探  
作者单位：任国选（中国地质大学,沉积盆地研究所,北京,100083）　
　　　　　孟祥化（中国地质大学,沉积盆地研究所,北京,100083）　
　　　　　葛铭（中国地质大学,沉积盆地研究所,北京,100083）　
　　　　　王德海（中国地质大学,沉积盆地研究所,北京,100083）　
　　　　　郭峰（中国地质大学,沉积盆地研究所,北京,100083）　
参考文献：

[1]宋春青.地质学基础[M].北京:高等教育出版社,1996[Sun Qingchun.Foundation of geology[M].Beijing:High Education Press,1996]
[2]Matthew R,Greentree.Late Mesoproterozoic to earliest Neoproterozoic basin record of the Sibao orogenesis in western South China and relationship to the assembly of Rodinia[J].Precambrian Research,2006,151:79-100
[3]周立君.快速扩张的东太平洋海隆侧翼年轻深海丘陵的热液释放现象[J].编译自Geology.2005,33(2):153-156.海洋地质动态,2005,21(4):14-1[Zhou Lijun.Manifestations of hydrothermal discharge from young abyssal hills on the fast-spreading east Pacific Rise Flank[J].Marine Geology Letters.2005,21(4):14-1]
[4]黄永建,王成善,汪云亮.古海洋生产力指标研究进展[J].地学前缘,2005,12(2):163-170[Huang Yongjian,Wang Chengshan,Wang Yongliang.Progress in the study of proxies of paleocean productivity[J].Earth Science Frontiers,2005,12(2):163-170]
[5]赵澄林.华北中、新元古界油气地质与沉积学[J].石油大学学报.1997,3:118-138[Zhao Chenglin.Study on gas oil geology and sedimentology in North China of Middle-upper Proterzoic[J].Journal of China University of Petroleum,1997,3:118-138]
[6]谢庆宾,朱筱敏.北京西山地区雾迷山组风暴硅岩沉积序列[J].沉积学报,1997,(3):37-40[Xie Qingbin,Zhu Xiaomin.Depositional sequence of storm siliceous rock in Wumishan Formation,West Mountain,Beijing,China[J].Acta Sedimentologica Sinica,1997,(3):37-40]
[7]倪丙荣,主编.地史学[M].北京:石油工业出版社,1988:59-71[Ni Bingrong.Geohistory[M].Beijingetroleum Industry Press,1988:59-71]
[8]王杰,陈践发.华北中上元古界烃源岩沉积环境及生烃潜力研究[J].天然气地球科学,2001,12(3):27-35[Wang Jie,Chen Jianfa.Study on the environment and potential of source rocks in North China Platform of Middle-upper Proterzoic[J].Natural Gas Geosciences,2001,12 (3):27-35]
[9]孟祥化,葛铭.中朝板块层序、事件和演化[M].科学出版社,2004[Meng Xianghua,Ge Ming.Cyclic sequences,events and evolution of the Sino-Korean Plate[M].Science Press,2004]
[10]吕炳全,胡望水,王红罡,等.华北地块中-上元古界上升流沉积相及其与油气的关系[J].海洋地质与第四纪地质,2005,25:83-88[Lu Bingquan,Hu Wangshui,Wang Honggan,et al.Neoproterozoic-Mesoproterozoic upwelling facies and its relationship with hydrocarbon in North China[J].Marine Geology & Quaternary Geology.2005,25:83-88]
[11]吕炳全,瞿建忠.下扬子地区早二叠世海进和上升流形成的缺氧环境的沉积[J].科学通报,1989,34(22):1721-1724[Lü Bingquan,Qu Jianzhong.Sedimentation of anoxic environments under transgression and upwelling process in early Permian in Lower Yangtze area[J].Chinese Science Bulletin.1989,34(22):1721-1724]
[12]徐伟民.苏浙皖地区二叠系硅质来源及其与油气关系的探讨[J].石油实验地质,1990,12(1):44-48[Xu Weimin.On the origins of the Permian siliceous rocks in Jiangsu-Zhejiang-Anhui Provinces and their relation with the generation of oil and gas[J].Experimental Petroleum Geology,1990,12(1):44-48]
[13]孙省利,陈践发,刘文汇.海底热水活动与海相富有机质层形成的关系[J].地质论评,2003,49 (6):588-595[Sun Xingli,Chen Jianfa,Liu Wenhui.Hydrothermal venting on the seafloor and formation of organic-rich sediments[J].Geological Review,2003,49(6):588-595]
[14]肖荣阁,张汉城,陈卉泉,等.热水沉积岩及矿物岩石标志[J].地学前缘,2001,8(4):379-385[Xiao Rongge,Zhang Hancheng,Chen Huiquan et al.Hydrothermal sedimentary rock and indicators of minerals and rocks[J].Earth Science Frontiers,2001,8(4):379-385]
[15]Clayton R N.High temperature isotope effects in the early solar system[C]//Valley,et al.Eds.Reviews in Mineralogy.Houstonergamon Press,1986,16:129-139
[16]裘怿楠.油气储层评价技术[M].北京:石油工业出版社,1997[Qiu Yi'nan.Evaluation method in hydrocarbon reservoir[M].Beijingetroleum Industry Press,1997]