静北潜山地层学研究  

STUDIES OF STRATIGRAPHY IN JINBEI BURIED HILL

作　　者：张雄华[1] 尹万泉[2] 张吉昌[2] 卢宗盛[1] 

机构地区：[1]中国地质大学,湖北武汉430074 [2]辽河油田勘探开发研究院,辽宁盘锦124010

出　　处：《石油与天然气地质》2001年第1期75-77,共3页Oil & Gas Geology

摘　　要：静北潜山地层岩性主要为变质陆源碎屑岩、混和岩、碳酸盐岩、蒸发岩及硅质岩等 ,与邻区的大红峪组、高于庄组、杨庄组、雾迷山组岩性特征极为相似 ;微古植物有 2 0属 33种 ,特征化石及化石组合特征可与邻区蓟县剖面的中元古界对比 ;潜山地层中的伊利石结晶度为 12 2～ 15 0 ,b0 值为 9 0 30～ 9 0 6 6 ,变质程度为浅变质绿片岩相 ,而邻近区域只有中元古界具有这样的特征 ;地球化学特征也与邻区中元古界的高于庄组、杨庄组、雾迷山组类似 ,而与古生界的差别极大。综上所述 ,静北潜山地层应与邻区中元古界的大红峪组、高于庄组、杨庄组和雾迷山组相当。Jinbei buried hill consists mainly metamorphic terrigenous clastic rock,diamictite,carbonatite,evaporite and silicite. Paleo-microphytes of the study area include 20 genera and 33 kinds,the characteristic fossils and the fossil assemblages could be correlated to that of Middle Proterozoic in Jixian County nearby.Illite crystallinity of the buried hill is 122～150,bo-value is 9.030～9.066, showing low metamorphic greenschist facies. In short,the strata of the buried hill show similarity in lithology,lithofacies, fossils,metamorphic grade and geochemistry with those of Middle Proterozoic Dahongyu,Gaoyuzhuang,Yangzhuang,Wumishan Formations of the neighbouring areas but differ greatly from those of the Paleozoic. So it is suggested that the strata should correspond to the above mentioned formations.

关 键 词：静北潜山 地层学 白云岩 岩石地层 变质程度 地球化学 

分 类 号：P539[天文地球—古生物学与地层学] P534[天文地球—地质学]