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Details for article 11 of 11 found articles
| Title: |
Structure of the Cobar Basin, New South Wales, based on seismic reflection profiling |
| Author: |
Glen, R. A. Drummond, B. J. Goleby, B. R. Palmer, D. Wake-Dyster, K. D. |
| Appeared in: |
Australian journal of earth sciences |
| Paging: | Volume 41 (1994) nr. 4 pages 341-352 |
| Year: |
1994-08 |
| Contents: |
The Cobar Basin in central western New South Wales is a mineral-rich Early Devonian basin typical of those that characterize the Siluro-Devonian history of the Lachlan Orogen of southeastern Australia. One hundred and seventy kilometres of seismic profiling in three lines across the basin have shown it to be asymmetrical in shape with an east-dipping western margin that is steeper than the moderately west-dipping eastern margin. Maximum basin thickness is around 6 km, but there are significant thickness changes, especially from south to north, which reflect the effect of synsedimentary faulting. Seismic profiling suggests that the basin deformed by thin-skinned tectonics; postulated strike-slip effects were not visible on the sections. The seismic profiling has, for the first time, imaged the western synrift basin margin which is generally not exposed. Strain variations during deformation along this edge were taken up by the formation of a major jog ('dog-leg') which has propagated into the basin as a tear fault. Intrabasinal tears, as well as thrusts, which link into one or more detachments, provide potential pathways for mineralizing fluids during basin inversion. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 11 of 11 found articles
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