Abstract

The Capel and Faust basins are located on the northern Lord Howe Rise between eastern Australia and New Caledonia in water depths of 1300-2500 m. Under the Australian Government's New Petroleum (2003-2007) and Offshore Energy Security (2007-2011) programs, Geoscience Australia acquired new geological data including high quality 2D seismic data, high resolution multibeam bathymetry, gravity and magnetic data, and rock dredge samples. These data have been analysed and synthesised for a geological and petroleum prospectivity assessment of the area. Prior to this phase of data collection, geoscientific data was limited to regional seismic profiles acquired during the 1970s to 1990s, shiptrack potential field and bathymetric data, and one DSDP drill hole. The interpretation of new data has improved definition of depocentres previously indicated by regional satellite gravity data. The largest depocentres are approximately 150 km long and 40 km wide. Seismic data suggest that the basin fill attains a maximum total thickness of over 6 km and consists of two syn rift and one sag megasequence packages, overlying a pre rift basement. The basement includes an older (?Mesozoic) sedimentary succession and a possible rift precursor volcanic succession. The early syn rift megasequence (Syn rift 1) is inferred to be dominated by Early Cretaceous (or older) volcanics and volcaniclastic sediments. It may also include coaly and lacustrine sediments. The late syn rift megasequence (Syn rift 2) is likely to be dominated by Late Cretaceous non marine clastic sediments, with localised volcanics and coal. The upper part of this megasequence was deposited under increasingly marine influence and is likely to include deltaic and shoreline sandstones. The post rift megasequence is essentially a Late Cretaceous to Recent deepeningupward marine succession that becomes increasingly calcareous and fine grained.
Google map showing geographic bounding box with values North bound -23.0 East bound 162.0 West bound 157.0 South bound -30.0
Related Links
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays

Product Type/Sub Type

dataset - External Publication - Abstract

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2010

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

External Publication
Abstract
structural geology
stratigraphy
sedimentary basins
continental margins
petroleum geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-23.0
East bound
162.0
West bound
157.0
South bound
-30.0

Lineage

Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

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

Metadata File Identifier

a05f7892-ef57-7506-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 Date Stamp

2010-01-06

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Related Links
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays