Abstract

During the period 1991-94, a co-operative study of the early development of the Otway' Basin was undertaken as part of a National Geoscience Mapping Accord project. The partners in the project were the Australian Geological Survey Organisation (AGSO), the Geological Survey of Victoria (GSV), the Department of Mines and Energy, South Australia (MESA), and the Victorian Institute of Earth and Planetary Sciences (VIEPS) at Monash and La Trobe Universities. As part of the project, four subsurface horizons were mapped across the onshore parts of the basin using exploration industry and AGSO seismic data. MESA undertook mapping in the South Australian sector of the basin, GSV in the central (western Victorian) part of the basin, and AGSO and VIEPS in the eastern part of the basin. This is the first time such mapping has been published on a basinwide scale in the Otway Basin. This Record accompanies a folio of ten 1:500 000 scale maps compiled by AGSO from the data provided by NGMA partners from the western, central and eastern parts of the onshore basin. Four of these maps are presented as two-way times (in milliseconds) to four mega-sequence boundaries together with interpreted structural information. The four mega-sequence boundaries are: - 1) - base Wangerrip Group, 2) - top Eumeralla Formation, 3) - top Crayfish Group, and 4) - top Palaeozoic basement. Time thickness (isochron) maps (in milliseconds two-way time) for the Crayfish Group, the Eumeralla Formation and the Sherbrook Group, complete the horizon mapping. Also included are maps of seismic line information and tectonic elements, and geophysical maps of gravity and magnetic data. The maps are designed to improve the overall understanding of Otway Basin subsurface geometry and tectonic evolution as a guide to possible hydrocarbon resources.
Google map showing geographic bounding box with values North bound East bound West bound South bound
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1994-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

14758 Product http://www.ga.gov.au/metadata-gateway/metadata/record/14758/

Keywords

GA Publication
Record
seismics
AU-SA
AU-VIC
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Legacy product, source data not available.

Metadata File Identifier

a05f7892-745f-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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