Palaeozoic

The Xiaorequanzi copper (zinc) deposit is situated in the south of a paleovolcanic domain in Haerlik-Danahu late Palaeozoic continental margin island.

摘要位于东天山的小热泉子铜（锌）矿是该地区有较大开发意义的矿。

Based on the petrographical analysis of key wells,log data is used to investigate sedimentary characters of early palaeozoic in Sulige area,Erdos basin.

以关键井相分析为,用测井资料研究了鄂尔多斯盆地苏里格地区上古生界测井沉积特征。