Advances in Ichnology and Its Potential for Sequence Stratigraphy

ZHANG Jian ping; LI Ming lu

The devlopment history of ichnology and its current advances are briefly reviewed in this paper,and the measurement of ichnofabric indices is introduced.It is agreed that the ichnological suites and their variation could reflect changes in substrate consistency,physical environmental energy,sedimentation rate, bottom current,oxygen content,water chemistry and water depth, all these are consistent with both phases and magnitudes of the associated sea-level cycles.Based on the analysis above,it has been pointed out that the ichnofossils are sensitive to paleoenvironmental changes as a result of sea level dynamics,the potential of ichnology for the sequence stratigaphy could be indicated by at least the following five aspects:1.determination and analysis of cyclic sequences;2.recognition and interpreation of sequence stratigaphic boundaries;3.analysis of condensed section;4.facies succession analysis;5.definition of marine or lacustrine shore zones.

China University of Geosciences,Beijing 100083

Received Date: 1998-05-12

Rev Recd Date: 1999-08-10

Publish Date: 2000-09-10

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Abstract: The devlopment history of ichnology and its current advances are briefly reviewed in this paper,and the measurement of ichnofabric indices is introduced.It is agreed that the ichnological suites and their variation could reflect changes in substrate consistency,physical environmental energy,sedimentation rate, bottom current,oxygen content,water chemistry and water depth, all these are consistent with both phases and magnitudes of the associated sea-level cycles.Based on the analysis above,it has been pointed out that the ichnofossils are sensitive to paleoenvironmental changes as a result of sea level dynamics,the potential of ichnology for the sequence stratigaphy could be indicated by at least the following five aspects:1.determination and analysis of cyclic sequences;2.recognition and interpreation of sequence stratigaphic boundaries;3.analysis of condensed section;4.facies succession analysis;5.definition of marine or lacustrine shore zones.

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Reference (19)

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Advances in Ichnology and Its Potential for Sequence Stratigraphy

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