Abstract
In the Post-Exxon Era of sequence stratigraphy, various sequence models for the complex stratigraphic records with their response mechanisms are developed. All the models with strong pertinence are endowed, which lead to misapprehension in the conceptual system. Therefore, the standardization of sequence stratigraphy with the aim to provide consistency in the terminology has become an important motive of modern sequence. During the development of sequence stratigraphy, the identification and distinction between normal and forced regression have laid important foundation for the system description of sequence development. This becomes the first step towards the standardization because of model-independent nature. The introduction of model-independent unconventional system tracts in fluvial sequence models, which are low- and high-accommodation system tracts, which turn out to be another successful attempt of towards the standardization of sequence stratigraphy. The four parts of stratigraphic records, which include the complexity and cyclicity in the stratigraphic accumulation process; the non-gradual change and the non-integrity of the stratigraphic records; the variability represented by the diversity of the sequence models and the nature of standardization including variability, will provide more clues and approaches for further sequence stratigraphy development
Highlights
The Sequence stratigraphy was introduced into the mainstream of stratigraphic practice in the 26 seismic stratigraphic compilations by American Association of Petroleum Geoscientists [1]
The more prominent contribution is that the introduction of the concept of the unconventional system tract provides confirming terms for the sequence stratigraphic standardization of all inland sedimentary environments, and it is another successful attempt of sequence stratigraphy standardization
No matter what type of difference exists among the stratigraphic succession, these are the product formed by the combined action of both accommodation and sediment supply, and are formed from the combination of different types of system tracts or genetic units
Summary
The Sequence stratigraphy was introduced into the mainstream of stratigraphic practice in the 26 seismic stratigraphic compilations by American Association of Petroleum Geoscientists [1]. If the quartered system tract of Helland-Hansen[23] is considered as the tentative exploration of the standardization of sequence stratigraphy, the detailed description of the transgression–regression process through the distinction of normal and forced regression would provide the most satisfactory solution for the ideal base-level change cycle and system tract division, because the segmentation of its concept refines the manifestation of the sedimentary trend in the base-level change curve, and emphasizes the importance of sedimentary trend research. It is the first important intelligent attempt towards the standardization of sequence stratigraphy. The more prominent contribution is that the introduction of the concept of the unconventional system tract provides confirming terms for the sequence stratigraphic standardization of all inland sedimentary environments, and it is another successful attempt of sequence stratigraphy standardization
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