3D seismic analysis of normal fault growth and interaction within a gravitational detachment delta system in the Ceduna Sub-Basin, Great Australian Bight

Alexander Robson; Dr Rosalind King; Dr Simon Holford

doi:10.1071/ASEG2015ab008

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa 3D seismic analysis of normal fault growth and interaction within a gravitational detachment delta system in the Ceduna Sub-Basin, Great Australian Bight
Authors Alexander Robson^a, Dr Rosalind King^b and Dr Simon Holford^c
View Affiliations Hide Affiliations

^a University of Adelaide, Adelaide, SA, 5005, [email protected] ^b University of Adelaide, Adelaide, SA, 5005, [email protected] ^c University of Adelaide, Adelaide, SA, 5005, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab008
- Published online: 01 Dec 2015

Abstract

We use three-dimensional (3D) seismic reflection data to determine the structural evolution of thin-skinned listric fault growth, at the extensional top of a gravitationally driven delta system, in the central Ceduna Sub-Basin. We present analysis of a strike and dip-linked extensional fault system, which is decoupled at the base of a marine mud interval of late Albian age. The fault system is oriented NW-SE with strike-linkage of fault segments and dip-linkage through the Santonian interval which connects a Cenomanian-Santonian period of kilometre scale fault growth and post-Santonian normal faulting. Understanding the growth of listric faulting requires quantifying heave and throw, which involves simplistic depth conversion of fault plane time measurements to establish a fault plane model to translate throw into fault plane displacement. Our analysis constrains fault growth into six evolutionary stages: [1] early Cenomanian nucleation and isolated radial propagation of fault segments; [2] substantial segment linkage established by the latest Cenomanian; [3] late Santonian cessation of a majority of fault growth; [4] heavy erosion at continental breakup of Australia and Antarctica (c. 83 Ma); [5] early Campanian independent nucleation of the post-Santonian fault system; and [6] fault assemblages fully linked by the Cenozoic, with continued accumulation of displacement. The structural evolution of this fault system is compatible with the ‘isolated fault model’. In particular, we emphasise the importance of dip-linkage in this fault system, which controls the present day geometry of the fault array.

Article metrics loading...

/content/journals/10.1071/ASEG2015ab008

2015-12-01

2026-01-23

From This Site

/content/journals/10.1071/ASEG2015ab008

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Baudon, C., & Cartwright, J. (2008). The kinematics of reactivation of normal faults using high resolution throw mapping. Journal of Structural Geology, 30(8), 1072-1084.
Cartwright, J. A., Trudgill, B. D., & Mansfield, C. S. (1995). Fault growth by segment linkage: an explanation for scatter in maximum displacement and trace length data from the Canyonlands Grabens of SE Utah. Journal of Structural Geology, 17(9), 1319-1326.
Childs, C., Nicol, A., Walsh, J. J., & Watterson, J. (2003). The growth and propagation of synsedimentary faults. Journal of Structural Geology, 25(4), 633-648.
Dawers, N. H., & Anders, M. H. (1995). Displacement length scaling and fault linkage. Journal of Structural Geology, 17(5), 607-614.
Dutton, D. M., & Trudgill, B. D. (2009). Four dimensional analysis of the Sembo relay system, offshore Angola: Implications for fault growth in salt-detached settings. AAPG bulletin, 93(6), 763-794.
Giba, M., Walsh, J. J., & Nicol, A. (2012). Segmentation and growth of an obliquely reactivated normal fault. Journal of Structural Geology, 39, 253-267.
Huggins, P., Watterson, J., Walsh, J. J., & Childs, C. (1995). Relay zone geometry and displacement transfer between normal faults recorded in coal-mine plans. Journal of Structural Geology, 17(12), 17411755.
Jackson, C. A. L., & Rotevatn, A. (2013). 3D seismic analysis of the structure and evolution of a salt-influenced normal fault zone: A test of competing fault growth models. Journal of Structural Geology, 54, 215-234.
Mansfield, C. S., & Cartwright, J. A. (1996). High resolution fault displacement mapping from three-dimensional seismic data: evidence for dip linkage during fault growth. Journal of Structural Geology, 18(2), 249-263.
Mansfield, C., & Cartwright, J. (2001). Fault growth by linkage: observations and implications from analogue models. Journal of Structural Geology, 23(5), 745-763.
Peacock, D. C. P., & Sanderson, D. J. (1991). Displacements, segment linkage and relay ramps in normal fault zones. Journal of Structural Geology, 13(6), 721-733.
Rowan, M. G., Hart, B. S., Nelson, S., Flemings, P. B., & Trudgill, B. D. (1998). Three-dimensional geometry and evolution of a salt-related growth-fault array: Eugene Island 330 field, offshore Louisiana, Gulf of Mexico. Marine and petroleum geology, 15(4), 309328.
Rykkelid, E., & Fossen, H. (2002). Layer rotation around vertical fault overlap zones: observations from seismic data, field examples, and physical experiments. Marine and Petroleum Geology, 19(2), 181-192.
Totterdell, J. M., Blevin, J. E., Struckmeyer, H. I. M., Bradshaw, B. E., Colwell, J. B., & Kennard, J. M. (2000). Petroleum frontiers, systems and plays-A new sequence framework for the Great Australian Bight: Starting with a clean slate.APPEA Journal-Australian Petroleum Production and Exploration Association,40(1), 95-120.
Totterdell, J. M., & Bradshaw, B. E. (2004). The structural framework and tectonic evolution of the Bight Basin. In Eastern Australasian Basins Symposium II, Petroleum Exploration Society of Australia, Special Publication, 41-61.
Walsh, J. J., & Watterson, J. (1988). Analysis of the relationship between displacements and dimensions of faults. Journal of Structural Geology, 10(3), 239-247.
Walsh, J. J., Nicol, A., & Childs, C. (2002). An alternative model for the growth of faults. Journal of Structural Geology, 24(11), 1669-1675.
Walsh, J. J., Bailey, W. R., Childs, C., Nicol, A., & Bonson, C. G. (2003). Formation of segmented normal faults: a 3-D perspective. Journal of Structural Geology, 25(8), 1251-1262.

/content/journals/10.1071/ASEG2015ab008

Article Type: Research Article

Keyword(s): bight; delta; detachment; fault; seismic

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa 3D seismic analysis of normal fault growth and interaction within a gravitational detachment delta system in the Ceduna Sub-Basin, Great Australian Bight

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed