早志留世 meaning in Chinese

lower silurian
lowersilurian

During the early silurian , the corals of the erlangping trough and the graptolites of the xichuan shelf belonged to the south china province
在早志留世，二郎坪海槽的珊瑚与浙川陆棚的笔石属华南生物省。
Therefore , two mineralization periods ore divided , which can be called as hot - water sedimention period and telescoping period . stratiform green - rock is the direct country rock of bedded orebodies . the rock was called as skam in the past
作者将本区成矿过程划分出两个成矿期，即早志留世热水沉积成矿期和燕山期岩浆?热液叠生改造成矿期。