GEOLOGICAL CHARACTERISTICS AND GENETIC TYPES OFTHE DAGUSHAN DOLOSTONE DEPOSIT INFULIJI,SUZHOU
There are multiple dolomite deposits in the Fuliji area in Suzhou City,Anhui Province,which occur in the middle to upper Cambrian strata.The weathered surface of them is often black brown,and the fresh surface is gray,grayish white with flesh red color,which can be distinguished from other bedrocks.The ore types corresponding to the three ore layers of the Dagushan dolomite deposit are oolitic dolomite,crystalline dolomite and argillaceous dolomite.Dolomite accounts for over 95%,with an average MgO content of 20.72%.They are deep-sea dolomites derived from the long-term erosion of Ca and Mg,which were transported and deposited in a colloidal manner,in the southern Huaiyang Shield.
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