摘要
首次发现报道了曼信一带海相火山岩微枕状构造的地质特征。主要根据野外第一手资料，分析探讨了曼信—老厂一带火山岩的时代，主要认识是：“依柳组”火山岩的主要形成于晚二叠世；老厂地区泥盆纪—中晚石炭世有少量基性—中性火山活动及三叠纪火山活动。
On the basis of the first field data,some geological characteristics of micropillow structure in volcanic rocks are firstly found and reported along the Manxin area.The age of the volcanic rocks along the Manxin Laochang area are discussed.It is considered that the volcanic rocks in the Yiliu group were mainly formed in late Permain,and in the there was weak basic intermediate volcanism in Devonian-middle late Carboniferous and Triassic period Laochang area
出处
《矿产与地质》
1996年第5期313-318,共6页
Mineral Resources and Geology
关键词
火山岩
微枕状构造
地质意义
Micropillow structure
Volcanic rocks
Yiliu group
Late Permain
Manxin Laochang
Yunnan
