Proposal of Cold Seep Carbonate Factory and Its Paleoclimatic Significance
[Significance]The proposal of a carbonate factory and its classification study are of great significance for promoting the development of carbonate sedimentology.However,the current classification scheme is not sufficient to cover all carbonate sediments,so it is urgent to clarify different carbonate factories at the level of mechanism and pro-cess.[Progress]The carbon used by traditional carbonate factories mainly comes from atmospheric and oceanic inor-ganic carbon pools,whereas certain marine and continental carbonate factories mainly fix carbon from exogenous car-bon pools,so the two are fundamentally different.The latter is often highly significant for tracing deep water environ-ments and climate events.[Conclusions and prospects]As an example,this study takes hydrocarbon seep carbon-ate,and formally puts forward the concept of a"cold seep carbonate factory".In addition,its sedimentary character-istics,biological composition and biogeochemical processes are summarized,and an example is discussed to address its geological significance.The type of carbonate factory based on an exogenous carbon pool deserves much attention.
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