Received date: 2006-02-27
Revised date: 2006-08-28
Online published: 2006-11-15
Seismic sedimentology is the use of seismic data in the study of sedimentary rocks and the processes by which they were formed. The key technology includes: ninety-degree phasing of seismic data and stratal slicing etc. The technology of ninety-degree phasing of seismic data gives lithological meaning to seismic phase and can be used in high frequency sequence interpretation; the technology of stratal slicing can be used to study the planar distribution of isochronal depositional systems by using a kind of slice named "stratal slice”.To make the stratal slice,a series of surfaces are firstly inserted between two isochronal depositional surfaces and then slices are made along each of them. Ideas in this paper is that: (1) At present , seismic sedimentology is only used in the research of macroscopic formation, rock, depositional history and depositional systerm because of the limit of seismic resolution.It still can not reach the research of sedimemtory rocks and the process in which they were formed. Therefore, seismic sedimentology at present is a subject to study macroscopic formation, rocks, depositional history and depositional systerm with seismic and well logging data using the geophysical technologies. It still needs a further development to be a new subject like seismic stratigraphy and sequence stratigraphy which are used to study the sedimentary rocks and sedimentary process. (2) In the use of the phasing technology, the phase-adjust angle should't be limited to 90 degrees and it should be determined in the well log-seismic data calibration. (3) Strata slice is more perfect than time slice and horizontal slice, but at present, the alteration of deposition rate versus time is ignored in the strata slice technology. Therefore, strata slice is not strictiy along the isochronal surfaces.
Key words： Seismic sedimentology; Strata slicing.; Phase convert
LIN Cheng-yan , ZHANG Xian-guo . The Discussion of Seismic Sedimentology[J]. Advances in Earth Science, 2006 , 21(11) : 1140 -1144 . DOI: 10.11867/j.issn.1001-8166.2006.11.1140
[1] Zeng Hongliu, Ambrose William A. Seismic sedimentology and regional depositional systems in Mioceno Norte, Lake Maracaibo, Venezuela[J]. The Leading Edge,2001,20(11):1 260-1 269.
[2] Zeng Hongliu, Hentz Tucker F. High-frequency sequence stratigraphy from seismic sedimentology: Applied to Miocene, Vermilion Block 50, Tiger Shoal area, offshore Louisiana[J]. AAPG Bulletin, 2004,88(2):153-174.
[3] Zeng Hongliu, Backus Milo M. Interpretive advantages of 90-phase wavelets: Part 1-Modeling[J]. Geophysics, 2005,70(3):C7-C15.
[4] Zeng Hongliu, Backus Milo M. Interpretive advantages of 90-phase wavelets: Part 2-Seismic applications[J]. Geophysics, 2005, 70(3):C17-C24.
[5] Brown A R, Dahm C G, Graebner R J. A stratigraphic case history using three-dimensional seismic data in the Gulf of Thailand[J]. Geophysical Prospecting, 1981, 29(3): 327-349.
[6] Zeng Hongliu, Backus Milo M, Barraw Kenneth T, et al. Stratal slicing, part Ι: Realistic 3D seismic model[J]. Geophysics, 1998, 63(2):502-513.
[7] Wolfgang Schlager. The future of applied sedimentary geology[J]. Journal of Sedimentary Research, 2000, 70(1) :2-9.
[8] Huang Feng, Li Zhirong, Liao Ling, et al. Sedimentary facies analysis using seismic data[J]. Computing Techniques for Geophysical and Geochemical Exploration,2003,25(3):197-200.[黄锋,李志荣,廖玲,等. 利用地震资料进行沉积相分析[J]. 物探化探计算技术, 2003, 25(3):197-200.]
[9] Zeng Hongliu, Hentz Tucker F, Wood Lesli J. Stratal slicing of Miocene-Pliocene sediments in Vermilion Block 50-Tiger Shoal Area, offshore Louisiana[J]. The Leading Edge, 2001, 20(4):408-418
[10] Zeng Hongliu, Backus Milo M, Barrow Kenneth T, et al. Facies Mapping from Three-Dimensional seismic data: Potential and guidelines from a Tertiary Sandstone-Shale Sequence Model, Powerhorn Field,Calhoun County, Texas[J]. AAPG Bulletin, 1996, 80(1):16-46.
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