Limestone and dolomite in North Chinamainly occur in the Lower Paleozoic and those in South China in the Devonian - Triassic.
灰岩、白云岩在华北主要产于下古生界，在华南主要产于泥盆系-三叠系。
Limestone and dolomite in North Chinamainly occur in the Lower Paleozoic and those in South China in the Devonian - Triassic.
灰岩、白云岩在华北主要产于下古生界，在华南主要产于泥盆系-三叠系。
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