Mapping sediment-dispersal patterns and associated systems tracts in fourth- and fifth-order sequences using seismic sedimentology: Example from Corpus Christi Bay, Texas

AAPG Bulletin ◽  
2007 ◽  
Vol 91 (7) ◽  
pp. 981-1003 ◽  
Author(s):  
Hongliu Zeng ◽  
Robert G. Loucks ◽  
L. Frank Brown
Geophysics ◽  
2008 ◽  
Vol 73 (5) ◽  
pp. A27-A31 ◽  
Author(s):  
Hongliu Zeng ◽  
Robert G. Loucks ◽  
Ursula Hammes

Linear amplitude patterns on stratal slices in the Corpus Christi Bay area of Texas are important seismic geomorphological features that reflect sediment dispersal patterns. These amplitude patterns are oriented in both strike and dip directions. Some of the linear amplitude patterns are related to faults; however, most are related to orientation of sandstone bodies. Faulting may make the depositionally related linear amplitude patterns more fragmented, but faults do not destroy the overall orientation or geomorphologic significance of these patterns. Amplitude patterns on stratal slices should be interpreted as unbiased, general, sediment-dispersal patterns unless the patterns can be tied directly to a structural feature. In-depth understanding of structural and depositionally related amplitude patterns leads to more accurate stratal slicing interpretation in facies/reservoir prediction using poststack 3D seismic data.


2016 ◽  
Author(s):  
Viridis M. Miranda Berrocales ◽  
◽  
Glenn R. Sharman ◽  
Jacob A. Covault ◽  
Daniel F. Stockli

1976 ◽  
Vol 1 (15) ◽  
pp. 114
Author(s):  
E.H. Owens

Detailed field investigations of barrier beach morphology and processes at adjacent sites in the Magdalen Islands, Gulf of St. Lawrence, show that the two beaches are in distinctly different morphodynamic environments. The differences are expressed in terms of wave energy levels, sediment dispersal patterns, and nearshore, littoral, and dune geomorphology. The exposed west-facing coast has a steeper offshore gradient, is a zone of sediment bypassing, and has a complex sequence of three nearshore bars. Wave energy levels are lower on the sheltered east coast, and this is a zone of sediment redistribution and deposition with a single, linear nearshore bar. The different morphological characteristics of the two barriers are attributed to the spatial variation in energy levels and to the differences in offshore gradients on the two coasts. Computed wave energy values, derived from data monitored during two study periods (August and November, 1974), indicate that the mean wave energy levels were greater on the west coast as compared to the east coast by factors of 2.25 in summer and 2.95 in winter. This is due primarily to the dominance of winds out of the westerly quadrant throughout the year. 1975


2020 ◽  
Vol 5 (1) ◽  
pp. 92-102 ◽  
Author(s):  
Elijah N. Waddell ◽  
Nigel Lascelles ◽  
Jeremy L. Conkle

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