摘要
青藏高原北部半岛湖地区英安岩岩石学、岩石化学、岩石地球化学特征指示半岛湖地区所属巴颜喀拉地体的大地构造位置在后中二叠世一段时期内曾经为可能受多岛弧背景影响的活动大陆边缘。
Characteristic of the dacite in petrology,petrochemistry,petrogeochemistry in the Bandaohu area, north of Qinghai-Tibet Plateau indicated that geotectonic position of Bandaohu area belong to Bayankala terrane was active continental margin which perhaps had been influenced by many island arcs behind the middle Permian Period.
出处
《贵州地质》
2004年第3期141-147,共7页
Guizhou Geology
基金
中国地调局青藏高原1:25万奥依亚依拉克幅
羊湖幅区调(项目编号19991300009071)成果。
关键词
英安岩
岩石特征
地质意义
半岛湖
青藏高原
dacite
petrology characteristics
geologic significance
Bandaohu
Qinghai-Tibet Plateau
