By study dabaoshan deposit on minerogenetic and geological background , mineral constituent , rare - earth element , isotope and typomorphic feature of sulpurization mineral , finally , we made a conclusion that dabaoshan deposit resulted from the volcanic deposition which type is laterebuilt and magma hydrothermal superimposed . we found the upside of dabaoshan deposit have been denuded or oxidized , bassically , it have reached the lowest part of the deposit
12.
By analyzing and generalizing minerogenetic and geological background , mineral constituent , rare - earth element , isotope and typomorphic feature of sulpurization mineral , finally , we made a conclusion that fankou desposit resulted from the hot spring eruption at the bottom of sea , it has a character of syngenetic sedimentary deposit , which was affected by the late hydrothermal superimposed and light rebuilding after it came into being , which is typical sedex bedded - controlled deposit
