吉林省蛟河市琵河基性岩体地质特征及形成环境分析  

Geologic features and form environment of Pihe basic rock body,Jiaohe City of Jilin Province

作　　者：丁淑燕[1] 陈明[1] 王丽伟[1] 纪春华[1] 刘丽[2] 刘帅 

机构地区：[1]吉林省区域地质矿产调查所,吉林长春市130013 [2]吉林省第一地质调查所,吉林长春130033 [3]吉林省矿产勘查开发研究院,吉林长春130061

出　　处：《吉林地质》2013年第2期14-16,共3页Jilin Geology

摘　　要：吉林省蛟河市琵河基性岩体为省内目前为止最新的侵入体,与船底山期火山活动有关,主要岩性为辉绿玢岩,岩体沿火山口侵入,为次火山岩相侵入体,时代为新近纪。本文以实际资料介绍了其地质特征、岩石学特征、岩石化学和地球化学特征,岩浆来源于地幔,形成于大陆裂谷环境,受敦密断裂控制。The Pihe basic rock body,Jiaohe City of Jilin Province is so far the latest intrusion in the province,and is close relationship with the Chuandishan period volcanic activities,the main lithology is diabase-porphyrite,rock mass was invaded along the crater,as the invasion of the subvolcanic facies,age of Neogene.Based on the actual data,introduced the geological features,petrology,petrochemistry and geochemistry characteristics;magma derived from the mantle,formed a continental rift environment,and was controlled by the Dunmi fracture.

关 键 词：琵河基性岩 次火山岩相侵入体 辉绿玢岩 新近纪 

分 类 号：P588.124[天文地球—岩石学]