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New Caledonia Basin

Entity ID: 28452 Compiled by: Taubert, S. & Laurie, J.R. Year: 2002 Status: Defined

Last Revised: 2013

Rank: province Type: sedimentary Subtype: undefined Location: Territory of Norfolk Island Off-shore

Synonyms: NA Symbol: NA

Minimum age: Recent Age method: inferred, biostratigraphic correlation

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

Summary: The frontier, Late Cretaceous to Recent New Caledonia Basin lies to the east of the Lord Howe Rise and contains up to about 4 km of marine and nonmarine sediments and volcanics

Attributes:
Area (square kilometres): 665600
State: Territory of Norfolk Island
Minimum present water depth (m): 2000
Maximum present water depth (m): 5000
Main rock types: carbonate sediments and sedimentary rocks
Main rock types: siliciclastic sediments and sedimentary rocks
Main depositional environment: marine and non-marine
Maximum sediment thickness (m): 4000
Present crustal setting: unknown
Country: AUS
Country: NZL
Country: FRA
Nouvelle Caledonie

Parent: No data

Child Provinces: No data

Relationships:
Adjoins - Challenger Plateau, Fairway Basin, Fairway Ridge, Norfolk Ridge

Constituent units:

Events: No data

Mineral Deposits: No data

Key Reference: Willcox, J.B., Sayers, J., Stagg, H.M.J., Van de Beuque, S. 2001, Geological framework of the Lord Howe Rise and adjacent ocean basins IN Hill, K.C. and Bernecker, T. (eds.) "Eastern Australasian Basins Symposium: a refocussed energy perspective for the future", Petroleum Exploration Society of Australia. Special Publication, 1v, p211-227 (Refid:12680)

Comments: No data

Overview: The New Caledonia Basin is an elongate basin which lies approximately 1,000 km off the east coast of Australia in water depths of up to 5000 m, extends between the North Island of New Zealand and New Caledonia, and is sub-parallel to and east of the Lord Howe Rise. This sinuous basin covers approximately 665,600 sq. km and contains up to 4000 m of Upper Cretaceous to Recent marine and non-marine sediments, with some volcanics. Based on seismic and satellite gravity data, the basin can be divided into three distinct sectors: southern, central and northern. The central sector is bounded by the northwest trending Vening-Gifford-Cato Lineament in the south and the northeast trending Barcoo-Elizabeth-Fairway Lineament in the north. The stratigraphy of the basin can only be inferred from DSDP wells (sites 206 and 591) drilled in the southern sector of the basin and by extrapolation from the contiguous deepwater Taranaki Basin to the south. Site 206 penetrated 734 m sub-surface and terminated in Lower Paleocene calcareous oozes, while Site 591 penetrated 500 m and terminated in Miocene sediments. Pre-Cainozoic stratigraphy in the New Caledonia Basin is unknown, but seismic data extending along the axis of the southern sector of the basin can be tied to Wainui 1 well in the deepwater Taranaki Basin. This suggests that the oldest rocks in the basin are Upper Cretaceous and may include coals and other non-marine sediments. By the time rifting had ceased during the earliest Paleogene, the basin had subsided to bathyal depths and deposition of calcareous oozes predominated. No petroleum exploration has been undertaken. The nature of the crust beneath the New Caledonia Basin is unknown: it could be either oceanic basalts or extended continental crust.

Images: No data

Other media: No data

Source Information:

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This report was generated on Wednesday, September 3, 2014 4:57:03 AM EST.