![]() Whatsoever without the written permission of the Department of Primary Industries.Ī framework sequence stratigraphic study of the onshore and offshore eastern Otway basin has been conductedĪs part of the 3D Victoria Initiative, in an attempt to resolve the complex stratigraphy and contradictions andĬonfusions present in the published literature. Information in this publication are copyright under the Copyright Act and may not be reproduced by any process All photographs, images, maps, charts, tables and written Particular purposes and therefore disclaims all liability for any error, loss or other consequences which may ariseįrom you relying on any information in this publication. This publication may be of assistance to you, but the State of VictoriaĪnd its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate for your Keatley of 3D-Geo Pty Ltd on a contract basis. This report was prepared for GeoScience Victoria and the 3D Victoria project by Professor Mike Hall and Dr Jeff Hoffman, Rob Kirk, Alan Tait and Lorenzo D’Auria from 3D Geo and Geoff O’Brien, Peter Tingate, Louise Goldie-ĭivko, Kusum Gunatillake, Bob Harms, Eddie Frankel, Tim Rawling and Terry Smith from GeoScience Victoria. The authors wish to thank all who contributed and in particular Kevin Asquith, Nick This report is the result of a collaboration between all of the members of the 3D Geo team and a number of Melbourne, VIC 3000 Australia GPO Box 4440 Melbourne, VIC 3001 Australia This report may be obtained from: For further information contact:ĭepartment of Primary Industries GeoScience Victoriaġ Spring Street Department of Primary Industries Keywords: 3D modelling, Otway Basin, cross sections, fence diagram, seismic, regional, sequence stratigraphy, © The State of Victoria, Department of Primary Industries, 2009 Otway Basin: stratigraphic and tectonic framework. GeoScience Victoria 3D Victoria Report 2. The results are presented in terms of petroleum systems and the implications for non-petroleum minerals and resources such as geothermal energy.įurther work is recommended in several areas:-ġ) Definitively resolving the lithostratigraphic nomenclature and sequence stratigraphy from the eastern Otway to the Torquay embaymentĢ) Continuing this work with a further study at finer spatial and temporal scaleĤ) Ties to other nearby basins along the Australian marginĦ) Communication and distribution of the results of this present studyħ) Consolidation of prior learnings from key individualsģD GEO 3D Victoria Project Department of Primary Industry Some changes of structural style are also seen in the deepwater but these cannot be resolved at the present scale of study. In the deepwater, gravity sliding is prominent as post-breakup differential subsidence tilted the margin. ![]() ![]() ![]() These maps provide a useful basis for regional-scale exploration and for the beginnings of prospectivity and play fairway analysis. The results are promising at the present pilot scale, but the full details of the chronostratigraphy have not yet been finalised.Ī number of seismic and well database issues have been addressed and partially resolved, but further database clean-up and improvements in general usability are required.Ī series of seismic and well facies maps have been produced for the major depositional sequences and a number of interesting sub-sequences identified for further work. A framework sequence stratigraphic study of the onshore and offshore eastern Otway basin has been conducted as part of the 3D Victoria Initiative, in an attempt to resolve the complex stratigraphy and contradictions and confusions present in the published literature. ![]()
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