Marine Gazetteer Placedetails

Status Proposed standard Proposed standard
Language Name Name source
EnglishMaadjit CanyonsIHO-IOC GEBCO Gazetteer of Undersea Feature Names   
PlaceType Canyon(s) 
Latitude 64° 50' 9.1" S (-64.83586°)  
Longitude 119° 48' 38.9" E (119.8108°)  
Min. Lat 65° 20' 6.4" S (-65.3351°)  
Min. Long 119° 10' 5.8" E (119.1683°)  
Max. Lat 63° 51' 54.3" S (-63.8651°)  
Max. Long 120° 43' 31.4" E (120.7254°)  
Source IHO-IOC GEBCO Gazetteer of Undersea Feature Names, available online at
Notes Additional information (en): Submarine canyons with asymmetrical cross section and flat floor. Straight to slightly sinuous with several tributaries near the on shore end. Minimum depth (m): 2887. Maximum depth (m): 3737. Total relief (m): 850. Dimension/size: 53 km wide and 170 km long..    
GEBCO: associated meeting, proposer and year of proposal (en): Associated meeting: SCUFN-33. Proposer: Ph.E. O’Brien, Macquarie University, Sydney, Australia; and L. Armand, Australian National University, Canberra, Australia. History: 2018.    
GEBCO: discoverer and year of discovery (en): Discoverer: Australian research vessel "Investigator". Year of discovery: 2017. History: Maadjit means water snake in the language of the Noongar people who are the indigenous people of the part of Australia that was adjacent to the Sabrina Coast before continental break up and drift. The name was chosen because of the sinuous tributary canyons which are unusually curved (snake-like) for this area.    
ACUF unique id (UFI) (en): 15036075    
Coordinates in ACUF (en): Latitude: -65.126236; Longitude: 119.557547    
Part of  Southern Ocean (IHO Sea Area)  [view hierarchy]   
Edit history Last edited on 2021-09-02 22:35:14 by Lonneville Britt
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