Significance of Terrace Deposits in Fluvial Sequence Stratigraphy

Abstract:

The terrace deposits in a river valley are key records to the research of fluvial sequence stratigraphy. Terrace deposits and the basal sequence boundary comprise the half-cycle of base level fall, and the fluvial infillings belong to the half-cycle of base level rise. Thus, terrace deposits and the basal sequence boundary are part of the regressive systems tract, and should be separated from the transgressive or lowstand systems tracts in previously published littoral fluvial sequence stratigraphic models. In addition, in the upstream portions of the fluvial system where sea level cannot reach, the fluvial sequence is influenced by tectonism and/or climate. The terrace deposits can provide specific information about the main controlling factor (e.g., tectonism or climate) and its varying pattern during the half-cycle of base level fall. Because the two half-cycles of base level fall and rise are at the same stratigraphic levels and belong to the same base level cycle, it is possible to research the controlling factor and its varying pattern during the rising half-cycle, which will be significant to an inland fluvial sequence stratigraphic model. Finally, the authors assert that seeking isochronous parasequence correlation based on 4-division models (4 different systems tracts), along with the blend of sedimentology and geomorphology and diversification of models based on different controlling factors will collectively produce more robust-interpretations of fluvial sequence stratigraphy in the future.

• Periodical: Applied Mechanics and Materials (Volume 318)
• Pages: 423-427
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.318.423
• Online since: May 2013
• Authors: Guang Ming Hu, Shun She Luo, Marjorie A. Chan, Hong Ping Xiao
• Keywords: Climate, Fluvial Sequence Stratigraphy, Inland, Regressive Systems Tract, Tectonism, Terrace Deposit

References

[1] K. W. Shanley, P. J. McCabe, Alluvial architecture in a sequence stratigraphic framework: a case history from the Upper Cretaceous of southern Utah, USA, in: Stephen S. Flint, Ian D. Bryant (Eds.), The geological modeling of hydrocarbon reservoirs and outcrop analogues, Blackwell Scientific Publications, Oxford, 1993, pp.47-49.

DOI: 10.1002/9781444303957.ch2

[2] K. W. Shanley, P. J. McCabe, Perspective on the sequence stratigraphy of continental strata, American Association of Petroleum Geologist Bulletin. 78 (1994) 559-561.

[3] L. B. Leopold, M. G. Wolman and J. P. Miller, Fluvial processes in geomorphology, W. H. Freeman and Company, San Francisco, 1964.

[4] H. Deng, H. Wang, Y. Zhu and T. A. Cross, High resolution sequence stratigraphy: principle and application, Geology Press, Beijing, 2002.

[5] T. A. Cross, High-resolution stratigraphic correlation from the perspectives of base-level cycles and sediment accommodation, in: J. Dolson. (Ed.), Unconformity Related Hydrocarbon Exploration and Accumulation in Clastic and Carbonate Setting, Rocky Mountain Association of Geologists, Short Course Notes, 1991, pp.28-41.

[6] O. Catuneanu, principles of sequence stratigraphy, first ed., Elsevier, Oxford, 2006.

[7] J. Imbrie, J. D. Hays and D. G. Martinson, The orbital theory of Pleistocene climate: Support from a revised chronology of the marine oxygen isotope record, in: A. L. Berger, (Ed.), Milankovitch and climate:Dordrecht, Netherlands, Reidel Publishing Company, 1984, pp.269-305.

[8] H. Chang, Z. An, X. Qiang, Y. Song and C. Fu, The causes of fluvial terraces inland and its implication, 2006 IEEE International Symposium on Geoscience and Remote Sensing, 1537-1540.

DOI: 10.1109/igarss.2006.396

[9] Q. Wei, L. Tan and S. Wang, Formation and evolution of river terrace and environment responses, Progress in Geography. 25 (2006) 56-58.

[10] L. Xu and S. Zhou, Formation process and driving mechanisms of fluvial terrace, Scientia Geographica Sinica. 27 (2007) 673-676.

[11] C. Zhang, S. Zhang, S. Li, W. Dan and L. Hou, Advances in Chinese fluvial sedimentology from 1983 to 2003, Acta Sedimentologica Sinica. 22 (2004) 183-188.