白云巖

Dolostone is the main rock type of the Cambrian in this area. 從下寒武統(tǒng)石龍洞組開始都是白云巖沈積。

According to the mechanism of dolomitization, it can be divided into penecontemporaneous dolostone and post-penecontemporaneous dolostone. 白云巖可據(jù)白云石化作用的機理和時間分為準同生白云巖和準同生后白云巖兩大類。