Abstract

In general, we met the scientific objective of this voyage in improving our understanding of the geological evolution and modern environmental setting of the poorly known Kenn Plateau off northeast Australia. The voyage was an overall success, but the sampling program was greatly curtailed for two reasons: problems with the Geoscience Australia seismic compressor increased the amount of seismic time needed, and the ship's winches failed with 4 sampling days to go. As Chief Scientist for the Mellish Rise voyage scheduled for November-December 2004, I gratefully accepted the offer of an additional two days' ship time to allow some key Kenn Plateau dredges to be taken. This will enable us to meet all our pre-voyage objectives, albeit late. The RV Southern Surveyor's acquisition program can be summarised as: 1 Successful seismic program with 3090 km of high-quality seismic data collected. 2 Successful swath-mapping program with 7584 km of bathymetric data using the SIMRAD EM 300 multibeam sonar system. 3 Only 12 dredge hauls and one grab were obtained. The seismic results will enable us to greatly improve our geological understanding of this very poorly known part of Australia's marine jurisdiction. The swath mapping results will improve existing bathymetric maps and also our understanding of sedimentary processes on the plateau margins. The sampling results will allow us to start to build up a reliable geological history of this region. This survey recovered the first ancient rocks from this large frontier offshore region. The performance of the vessel and equipment was generally good. The entire ship's crew performed very well, being professional, helpful and courteous. The CSIRO support technicians did everything that could be expected of them. Steve Thomas was an excellent voyage manager, always looking for and finding ways to help the Geoscience Australia science contingent in their work.
Google map showing geographic bounding box with values North bound -18.0 East bound 171.0 West bound 166.0 South bound -22.0
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 - Report

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2004

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

External Publication
Report
marine
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-18.0
East bound
171.0
West bound
166.0
South bound
-22.0

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-c1f5-7506-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

2004-07-12

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