The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin
Typescript Thesis (PhD) -- University of Melbourne, Faculty of Science, 2006 Includes bibliographical references (leaves 196-206) The Otway Basin formed during Late Jurassic�Late Paleocene rifting and separation of the Australian and Antarctic continents. Rifting proceeded from west to east, and by...
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ftumelbourne:oai:jupiter.its.unimelb.edu.au:11343/341762 2024-06-02T07:58:13+00:00 The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin Schneider, Craig Louis 2005 http://hdl.handle.net/11343/341762 English eng University of Melbourne THSS_b3022130-00001 http://hdl.handle.net/11343/341762 Copyright in works deposited in Minerva Access is retained by the copyright owner. The work may not be altered without permission from the copyright owner. Readers may only download, print and save electronic copies of whole works for their own personal non-commercial use. Any use that exceeds these limits requires permission from the copyright owner. Attribution is essential when quoting or paraphrasing from these works. Petroleum -- Prospecting Petroleum -- Geology -- Australia -- Otway Basin (Vic. and SA) Geology -- Australia -- Otway Basin (Vic. and SA) Rifts (Geology) Geology Stratigraphic -- Cretaceous PhD thesis 2005 ftumelbourne 2024-05-06T12:15:35Z Typescript Thesis (PhD) -- University of Melbourne, Faculty of Science, 2006 Includes bibliographical references (leaves 196-206) The Otway Basin formed during Late Jurassic�Late Paleocene rifting and separation of the Australian and Antarctic continents. Rifting proceeded from west to east, and by the end of the Early Cretaceous the intra-cratonic rift stretched from the Indian Ocean in the west to the eastern side of the Gippsland Basin to the east. During the Late Cretaceous, the architecture changed in the east-central Otway Basin as the rift axis began to propagate to the south, along the western margin of Tasmania, creating a NNW-SSE trending left-lateral oblique transform margin. The change caused decreased extension and the eventual abandonment of the Bass Basin rift segment as Tasmania remained attached to the Indo-Australian Plate. Previous workers have hypothesized that the development of the oblique margin was controlled by the extensional reactivation of the N-S trending lithospheric- scale suture between the Palaeozoic Lachlan and Delamerian mobile belts. The Shipwreck Trough is located along strike of the Palaeozoic suture, at the northern tip of the Late Cretaceous oblique margin, and has been the location of numerous recent natural gas discoveries. These discoveries have driven the acquisition of high-resolution 3D seismic data sets making the Shipwreck Trough an ideal location to study the structural development of this oblique rift margin. This study has illuminated the evolution of the Shipwreck Trough through 3D structural mapping of seismic horizons, faults, and growth strata geometry and distribution. The Shipwreck Trough evolved through two rift phases. Commencing in the Late Jurassic-Barremian, the N-S trending Proto-Shipwreck Trough and NE trending Minerva Graben, Princetown Horst, and Geographe Horst were formed by the probable extensional reactivation of NE and NNW trending Palaeozoic basement structures. These early Cretaceous depocentres were filled with up to 4 km of ... Doctoral or Postdoctoral Thesis Antarc* Antarctic The University of Melbourne: Digital Repository Antarctic Indian |
institution |
Open Polar |
collection |
The University of Melbourne: Digital Repository |
op_collection_id |
ftumelbourne |
language |
English |
topic |
Petroleum -- Prospecting Petroleum -- Geology -- Australia -- Otway Basin (Vic. and SA) Geology -- Australia -- Otway Basin (Vic. and SA) Rifts (Geology) Geology Stratigraphic -- Cretaceous |
spellingShingle |
Petroleum -- Prospecting Petroleum -- Geology -- Australia -- Otway Basin (Vic. and SA) Geology -- Australia -- Otway Basin (Vic. and SA) Rifts (Geology) Geology Stratigraphic -- Cretaceous Schneider, Craig Louis The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
topic_facet |
Petroleum -- Prospecting Petroleum -- Geology -- Australia -- Otway Basin (Vic. and SA) Geology -- Australia -- Otway Basin (Vic. and SA) Rifts (Geology) Geology Stratigraphic -- Cretaceous |
description |
Typescript Thesis (PhD) -- University of Melbourne, Faculty of Science, 2006 Includes bibliographical references (leaves 196-206) The Otway Basin formed during Late Jurassic�Late Paleocene rifting and separation of the Australian and Antarctic continents. Rifting proceeded from west to east, and by the end of the Early Cretaceous the intra-cratonic rift stretched from the Indian Ocean in the west to the eastern side of the Gippsland Basin to the east. During the Late Cretaceous, the architecture changed in the east-central Otway Basin as the rift axis began to propagate to the south, along the western margin of Tasmania, creating a NNW-SSE trending left-lateral oblique transform margin. The change caused decreased extension and the eventual abandonment of the Bass Basin rift segment as Tasmania remained attached to the Indo-Australian Plate. Previous workers have hypothesized that the development of the oblique margin was controlled by the extensional reactivation of the N-S trending lithospheric- scale suture between the Palaeozoic Lachlan and Delamerian mobile belts. The Shipwreck Trough is located along strike of the Palaeozoic suture, at the northern tip of the Late Cretaceous oblique margin, and has been the location of numerous recent natural gas discoveries. These discoveries have driven the acquisition of high-resolution 3D seismic data sets making the Shipwreck Trough an ideal location to study the structural development of this oblique rift margin. This study has illuminated the evolution of the Shipwreck Trough through 3D structural mapping of seismic horizons, faults, and growth strata geometry and distribution. The Shipwreck Trough evolved through two rift phases. Commencing in the Late Jurassic-Barremian, the N-S trending Proto-Shipwreck Trough and NE trending Minerva Graben, Princetown Horst, and Geographe Horst were formed by the probable extensional reactivation of NE and NNW trending Palaeozoic basement structures. These early Cretaceous depocentres were filled with up to 4 km of ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Schneider, Craig Louis |
author_facet |
Schneider, Craig Louis |
author_sort |
Schneider, Craig Louis |
title |
The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
title_short |
The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
title_full |
The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
title_fullStr |
The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
title_full_unstemmed |
The 3D structural evolution of the shipwreck trough, Otway Basin, southeastern Australia : architecture of an oblique rift margin |
title_sort |
3d structural evolution of the shipwreck trough, otway basin, southeastern australia : architecture of an oblique rift margin |
publisher |
University of Melbourne |
publishDate |
2005 |
url |
http://hdl.handle.net/11343/341762 |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
THSS_b3022130-00001 http://hdl.handle.net/11343/341762 |
op_rights |
Copyright in works deposited in Minerva Access is retained by the copyright owner. The work may not be altered without permission from the copyright owner. Readers may only download, print and save electronic copies of whole works for their own personal non-commercial use. Any use that exceeds these limits requires permission from the copyright owner. Attribution is essential when quoting or paraphrasing from these works. |
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