摘要
本文详细描述了赣北乐平地区中元古代变质地层中海相火山岩的岩石学、岩石化学、副矿物等方面的特征及其空间分布规律，对该区中元古代海底火山活动特点进行了初步探讨，认为整个火山活动过程反映了一个由弱→强→弱的发展过程，火山活动呈现出火山喷溢—喷发交替进行的特点。
Based on petrology, petrochemistry and accessory mineral characteristics
and spatial distribution of the marine volcanic rocks in Middle Proterozoic metamorphosed strata
in the Leping area, North Jiangxi, the authors have discussed preliminarily the characteristics of
Middle Proterozoic submarine volcanism of this area, and believe that the whole course of
volcanism reflects a weak-strong-weak evolutionary trend and a multistage nature of alternating
effusion and eruption events.
出处
《江西地质》
1999年第1期23-28,共6页
Jiangxi Geology
