松辽盆地白垩系火山岩类型与鉴别特征.pdfVIP

第 26 卷 第 4 期 大庆石油地质与开发 P1G1O 1D1D1 2007年 8月 # 9# : 1000-3754 ( 2007) 04-0009-08 1 1 2 2 1 1 1 郑常青, 王璞珺 , 刘 杰 , 舒 萍 , 刘万洙, 黄玉龙, 唐华风 ( 11 , 130061; 21 , 163712) : 依据 127口钻遇火山岩探井和盆缘剖 研究资料, 提出松辽盆地深层火山岩及沉积岩变质岩 的分类方案, 将火山岩类划分为火山熔岩火山碎屑熔岩火山碎屑岩和沉火山碎屑岩四类根据火 山岩化学成分斑晶矿物组合和结构构造等区分具体岩石类型, 依据火山岩出现的频率和厚度确定出 松辽盆地北部常见典型火山岩类型 20种从深层火山岩勘探的实际入手, 从岩石的颜色化学成 分矿物成分结构构造裂缝等特征详细描述了这 20种火山岩类型和鉴别特征, 并附有 42张特征 照片和简要说明, 以期促进松辽盆地火山岩命名与鉴定研究, 进而直接应用于火山岩的油气勘探 : 松辽盆地; 白垩系; 火山岩类型; 鉴别特征 : TE121 : A Types and distinguishing characteristics of cretaceous volcanic rocks in Songliao Basin 1 1 2 2 1 ZHENG Chang- ing , WANG Pu-jun , LIU Jie, SHU Ping , LIU W an-zhu , 1 1 HUANG Yu-long, TANG Hua-feng ( 11Geosciences Institute, J ilin University, Changchun 130061, China; 21Exp loration and D evelopm ent Research Institute of Da ing O ifl ield Comp any L td1, Da in 163712, Ch ina) Abstract: Based on core sections from 127w ells drilling into volcan ic rocks and outcrops around the basin, a classifica- tion method has been proposed for the deep basin volcan ic rocks and sedmi entary rocks asw ell as metamorph ic rocks in Songliao Basin. The volcan ic rocks are d ivided into 4 types: volcan ic lavas, volcanic clastic lavas, pyroclastics rocks, and sedmi entary volcanic clastic rocks. Detailed types are further differentiated by volcan ic geochem istry, phenocrystic m ineral assemblage and inner structures. A ccord ing to their fre uency an