Authors / CoAuthors
Butcher, G. | Grosjean, E. | Byass, J. | Williams, A. | Carson, C.J.
Abstract
Exploring for the Future (EFTF) is an Australian Government program led by Geoscience Australia, in partnership with state and Northern Territory governments. The first phase of the EFTF program (2016-2020) aimed to drive industry investment in resource exploration in frontier regions of northern Australia by providing new precompetitive data and information about their energy, mineral and groundwater resource potential. One of the key discoveries of the first phase of the Exploring for the Future program was the identification of a large sedimentary depocentre in the South Nicholson region, an underexplored area straddling north-eastern Northern Territory and north-western Queensland. This depocentre, up to 8 km deep, was termed the ‘Carrara Sub-basin’ by Geoscience Australia. It is interpreted to contain thick sequences of Proterozoic rocks, broadly equivalent to rocks of the greater McArthur Basin (Northern Territory) and northern Lawn Hill Platform and Mount Isa Province (Queensland), known to be highly prospective for sediment-hosted base metals and unconventional hydrocarbons. In order to gain insights into the resource potential of the Carrara Sub-basin, the South Nicholson National Drilling Initiative (NDI) Carrara 1 stratigraphic drillhole was completed in late 2020, as a collaboration between Geoscience Australia, the Northern Territory Geological Survey (NTGS) and the MinEx CRC . NDI Carrara 1 is the first drillhole to intersect the, as yet, undifferentiated Proterozoic rocks of the Carrara Sub-Basin. NDI Carrara 1 is located on the western flanks of the Carrara Sub-basin on the South Nicholson Seismic line (17GA-SN1), reaching a total depth of 1751 mGL, intersecting ca. 630 m of Cambrian Georgina Basin overlying ca. 1100 m of Proterozoic carbonates, black shales and minor siliciclastics . Geoscience Australia is undertaking a range of investigations on the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 based on wireline data, as well as undertaking a range of analyses of over 400 physical samples recovered through the entire core. This report presents new data from bulk density measurements carried out on selected rock samples as part of this comprehensive analytical program.
Product Type
dataset
eCat Id
145737
Contact for the resource
Point of contact
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Digital Object Identifier
Keywords
- ( Project )
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- Barkly–Isa–Georgetown
- ( Project )
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- NDI
- ( Project )
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- MinEx CRC
- ( Project )
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- EFTF – Exploring for the Future
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- EFTF
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- Bulk Density
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- Minex CRC (Cooperative Research Centre)
- theme.ANZRC Fields of Research.rdf
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- Petroleum and Coal GeologyStratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
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- Published_External
Publication Date
2021-10-01T06:20:13
Creation Date
2021-08-18T22:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Data release of results from the NDI Carrara 1 drillhole. Analysis was undertaken at Geoscience Australia
Maintenance Information
As needed
Topic Category
geoscientificInformation
Series Information
Record
Lineage
This is an update of an earlier version of the report that had been released on 01/10/2021 with 27 additional new data.
Parent Information
Extents
[-26.00, -11.00, 129.00, 138.00]
Reference System
GDA94 / MGA zone 53 / projected (EPSG: 28353)
Spatial Resolution
Service Information
Associations
Source Information