Authors / CoAuthors
Abstract
In 2017, under the Federal Governments’ Exploring for the Future program, in collaboration with the NTGS under their ‘Resourcing the Territory’ initiative, Geoscience Australia acquired the South Nicholson Deep Crustal Seismic Reflection Survey in north-eastern Northern Territory. One of the key discoveries of this survey was the identification of a large sedimentary depocentre, concealed beneath the sedimentary rocks of the Cambrian Georgina Basin. This depocentre, up to 7 km deep, termed the ‘Carrara Sub-basin’ by Geoscience Australia (e.g. Carr et al., 2020), is interpreted to contain thick sequences of resource-rich Proterozoic rocks, broadly equivalent to rocks of the greater McArthur Basin (Northern Territory) and northern Lawn Hill Platform and Mount Isa Province of northwest Queensland, rocks that are highly prospective for sediment-hosted base metals and unconventional hydrocarbons. The Carrara-1 stratigraphic drillhole was completed in late 2020, as a collaboration between Geoscience Australia, the Northern Territory Geological Survey and the MinEx CRC. Carrara-1 is the first drillhole to intersect the undifferentiated Proterozoic rocks of the Carrara Sub-Basin. 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 m, intersecting ca. 630 m of Cambrian Georgina Basin overlying ca. 1100 m of Proterozoic carbonates, black shales and minor siliciclastics. These rocks preserve evidence of both oil and gas and visible disseminated sulphide mineralisation. Carrara-1 affords us a privileged glimpse into this highly prospective and exciting frontier Proterozoic basin.
Product Type
document
eCat Id
145701
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
- Contact instructions
- MEG
Resource provider
Digital Object Identifier
Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
- ( Place )
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- Barkly Tablelands
- ( Feature type )
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- Carrara stratigraphic drillhole
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- South Nicholson region
- ( Project )
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- Exploring for the Future
- ( Feature type )
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- Carrara Sub-basin
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- Published_External
Publication Date
2021-08-26T00:46:04
Creation Date
Security Constraints
Legal Constraints
Status
completed
Purpose
Poster for Industry showing workshop, hosted by NTGS preceding NT Resources Week 2021
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Industry Viewing workshop – 31 August 2021, NT Resources Week
Lineage
poster contains high resolution images of Carrara-1 core, a generic well log and location map for Carrara-1. For display at Industry Core viewing workshop
Parent Information
Extents
[-19.00, -18.80, 137.60, 137.80]
Reference System
Spatial Resolution
100m
Service Information
Associations
Source Information