The reconstruction of ancient marine environments is an important task of the Earth Sciences, of great interest to geology, pure and applied, to oceanography and climatology, as well as to such fields as ecology and evolution. In principle, such reconstructions are based on the actualistic approach of “the present is the key to the past.” Since the deciphering of past environmental changes, either natural or man-made, has considerable bearing on planning, the past may provide a key to the future.
KeywordsBiomass Silicate Geochemistry Fractionation Drilling
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