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Fairway Basin

Entity ID: 27898 Compiled by: Taubert, S. Year: 2002 Status: Defined

Last Revised: 2013

Rank: province Type: sedimentary Subtype: polyhistory Location: Territory of Norfolk Island, NSW Off-shore

Synonyms: NA Symbol: NA

Minimum age: Recent Age method: inferred, seismic interpretation

Maximum age: Early Cretaceous Age method: inferred, seismic interpretation

Summary: The Early Cretaceous to Recent Fairway Basin is an offshore frontier basin located on the Lord Howe Rise about 1000 km off the east coast of Australia and contains approximately 2500 m of sediment in water depths ranging from 1500 to 3000 m.

Attributes:
Area (square kilometres): 130800
State: Territory of Norfolk Island
State: NSW
Minimum present water depth (m): 1500
Maximum present water depth (m): 3000
Main rock types: carbonate sediments and sedimentary rocks
Main rock types: sediments and sedimentary rocks with volcaniclastic debris
Main depositional environment: marine and non-marine
Maximum sediment thickness (m): 2500
Present crustal setting: unknown
Country: AUS
Country: FRA
Nouvelle Caledonie.

Parent: No data

Child Provinces: No data

Relationships:
Adjoins - Fairway Ridge, Lord Howe Platform, New Caledonia Basin

Constituent units:

Events: No data

Mineral Deposits: No data

Key Reference: Van de Beuque, S., Stagg, H., Sayers, J., AGSO Law of the Sea Group. Geological framework of the northern Lord Howe Rise and adjacent basins, Australian Geological Survey Organisation, Record 2001, (in press), 2001, (Refid:12678)

Comments: No data

Overview: The Early Cretaceous to Recent Fairway Basin is an offshore frontier basin located about 1000 km off the east coast of Australia. The basin is part of the eastern flank of the Lord Howe Rise and contains approximately 2500 m of sediment in water depths ranging from 1500 to 3000 m. The Fairway Basin is bound by the New Caledonia Basin and Fairway Ridge to the east, the Lord Howe Platform to the west, and the Chesterfield Plateau to the north. The stratigraphy in the Fairway Basin is based on seismic interpretations and ties to DSDP 208. The nature of basement underlying the Fairway Basin is unclear with either a volcanic, oceanic or highly extended continental crust origin. The basement is onlapped by a thin pre-Cenomanian sequence. This is overlain by a Cenomanian to Campanian sequence in the north, however, it is unclear if this sequence extends to the southern part of the basin. A Campanian to Lower Eocene sequence shows evidence of uplift. Lower Eocene to Recent sequences consist of nannofossil oozes, with some chalk and volcanic ash in the Middle Miocene to Recent sequences. A number of structures within the Fairway Basin have been reactivated as a result of a regional compressional event during Eocene to Oligocene. Compressive deformation and associated folds, and a lateral shift of the depocentre, suggest a degree of inversion. Diapiric structures have also been interpreted in the northern Fairway Basin that may be remobilised mud and/or salt from the syn-rift section. The petroleum prospectivity of the Fairway Basin is speculative due to its frontier nature. However, recent studies indicate that there is sufficient sediment cover in the southern part of the basin for hydrocarbon generation. Indications of oil slicks in the vicinity of the southern Fairway Basin also suggests the possibility of a petroleum system within the region.

Images: No data

Other media: No data

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This report was generated on Monday, April 21, 2014 8:06:39 PM EST.