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Seafloor bathymetry of the Gascoyne Marine Park  


Authors / CoAuthors

Post, A.L.

Abstract

This flythrough highlights canyon environments within the Gascoyne Marine Park offshore northwestern Australia. The Cape Range Canyon is a relatively narrow, linear canyon that initiates on the continental slope, but is connected to the shelf via a narrow channel. The walls of the canyon are steep and reveal a history of slumping and retrogressive failure, that have broadened the canyon over time. The floor contains a series of deep plunge pools, indicative of the action of sediment-laden turbidity currents in further eroding this canyon. Epibenthos within the canyons was relatively sparse and likely regulated by disturbance associated with sedimentation in the canyons. Rock overhangs often supported the highest densities of benthic suspension feeders, including glass sponges, octocorals, and ascidians. Bathymetry data and seafloor imagery for this flythrough was collected by the Schmidt Ocean Institute during survey FK200308. Funding was provided by Schmidt Ocean Institute, Geoscience Australia, the Australian Government’s National Environmental Science Program (NESP) Marine Biodiversity Hub, the Director of National Parks, and the Foundation for the WA Museum through a Woodside Marine Biodiversity Grant.

Product Type

product

eCat Id

144535

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
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Keywords

theme.ANZRC Fields of Research.rdf
  • Geomorphology and Regolith and Landscape EvolutionEARTH SCIENCES
( Theme )
  • Marine
  • Bathymetry
( Instrument )
  • Multibeam
( Product )
  • Bathymetric grids
  • Published_External

Publication Date

2021-02-24T04:09:46

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - license

Use - license

Status

completed

Purpose

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Lineage

Parent Information

Extents

[-23.9001, -20.9138, 111.1126, 114.5047]

Reference System

Spatial Resolution

Service Information

Associations

Downloads and Links

Link to the Flythrough  

Source Information



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