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引言 同碎屑沉积不一样,化学沉积不能提供任何关于其组分来源的信息。这是一般的认识,然而,对化学沉积进行岩石学研究,就可再造部分的沉积过程,从而解决沉积区的古地理问题。
INTRODUCTION Unlike clastic sedimentation, chemical deposition does not provide any information about the origin of its components. This is a general understanding. However, carrying out petrological studies of chemical depositions can re-engineer part of the sedimentary process and solve the paleogeographic problems in the sedimentary area.