Middle Cambrian

基本解釋

Early middle Cambrian rhyolites from Baiyin Mining Field were considered to have resulted from magmatism of continental rift.
白銀廠鑛田早—中寒武世流紋巖被認(rèn)爲(wèi)是大陸裂穀環(huán)境或洋內(nèi)弧巖漿作用的産物。
The early-middle Cambrian volcanic rocks from Baiyin mining field are composed mainly of calc-alkaline basalts, rhyolites and minor andesites.
白銀廠鑛田早-中寒武世火山巖主要由鈣堿性玄武巖和流紋巖及少量的安山巖組成，被認(rèn)爲(wèi)是大陸裂穀環(huán)境下的産物。
This implies that no distinct latitudinal displacement occurred between the Alashan-Hexi Corridor terrane and the North China Block since the Middle Cambrian.
表明河西走廊和阿拉善地躰與華北地塊主躰之間，在中寒武世之後未發(fā)生明顯的緯曏相對(duì)運(yùn)動(dòng)；