摘要
广西岑溪地区志留系为半深、深海笔石相—滨浅海腕足相的碎屑岩地层序列，属地槽型沉积产物；泥盆系为滨岸碎屑岩相—台地碳酸盐岩相—槽盆硅质岩相的地层序列，富含鱼、腕足等多门类化石，具地台型沉积特征。泥盆系与志留系之间为平行不整合接触。表明广西运动在本区表现为整体抬升遭受剥蚀而非强烈的造山运动，其集中暴发时间在早泥盆世早期，前奏可追溯到中志留世。由于这一运动，结束了本区早古生代地槽的发展历史，此后进入准地台发展阶段，导致钦州地槽博白—玉林拗陷未能延至本区。
In Cenxi district, Silurian System beloning to
geosynclinal sedimentary is clastic rock series with subabyssal abjyssal graptolitan
facies neritic bfrachiopodous facies; but Devonian System is shorelina clastic rock facies
carbonate platform facies basin in trough siliceous rock facies,containing abundant fossils
such as fish and brachiopods The contact relationship between Silurian and Devonian is
parallel unconformity It shows Guangxi movement caused whole uplift in this district
Because of Guangxi movement in Early Palaeozonic, parageosyncline was ended, and
metaplatform developed So Qinzhou geosyncline and Bab Yulin downwarp did not extent to
this district
出处
《广西地质》
1999年第1期9-14,共6页
Guangxi Geology
