Three misreadings during the developing course of sequence stratigraphy
On the basis of an important concept that an unconformity can be understood as a time barrier and a stratigraphic boundary,the stratigraphic unit bounded by an unconformity and its correlative surface can be defined as a sequence; and further,the repeatability of sequence boundaries resulted from the base-level changes was attributed genetically to the sea-level change.This bold explanation with speculations became an important basis for the deduction model that is in the lead within the conceptual system of sequence stratigraphy.Both the establishment and the evolvement of the conceptual system represent the renovation and revolution of the work-method and term system.Thus,sequence stratigraphy has been praised as a latest conceptual revolution for the methodology of stratigraphic analysis in a broad realm of sedimentary geology.The complicacy of the stratigraphic records and their forming processes has resulted in three misreadings in the developing course of sequence stratigraphy,which can be summarized as follows:(1) a mistaken correlation in 1977; (2) a mistaken assumption in 1988; (3) a redundancy amendment in 1999.These three misreadings are a true portrayal of senior scientists having strived to extract more regularities from sophisticated stratigraphic records and are endowed with the vivid peculiarities of times.It is very meaningful for the further advancement of sequence stratigraphy to pursuit and to summarize both the historical background resulting in these three misreadings and their scientific implications for sedimentology and stratigraphy.
three misreadingsscientific implicationsequence stratigraphystratigraphysedimentology
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