Authors / CoAuthors
Grosjean, E. | Jarrett, A. | Boreham, C.J. | Jinadasa, N. | Sohn, J. | Butcher, G. | Hong, Z. | Carson, C.J.
Abstract
<div>Exploring for the Future (EFTF) is an Australian Government program led by Geoscience Australia, in partnership with state and Northern Territory governments, and aimed at stimulating exploration now to ensure a sustainable, long-term future for Australia through an improved understanding of the nation’s minerals, energy and groundwater resource potential. </div><div>The EFTF program is currently focused on eight interrelated projects, united in growing our understanding of subsurface geology. One of these projects, the Barkly–Isa–Georgetown project, will deliver new data and knowledge to assess the mineral and energy potential in undercover regions between Tennant Creek, Mount Isa and Georgetown. Building on the work completed in the first four years of the Exploring for the Future program (2016-2020), the project undertook stratigraphic drilling in the East Tennant and South Nicholson regions, in collaboration with MinEx CRC and the Northern Territory Geological Survey (NTGS). This work tests geological interpretations and the inferred mineral and energy potential of these covered regions. Geoscience Australia is undertaking a range of analyses on physical samples from these drill holes including geochemistry and geochronology. </div><div>The South Nicholson National Drilling Initiative (NDI) Carrara 1 drill hole is the first drillhole to intersect the Proterozoic rocks of the Carrara Sub-Basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys acquired as part of the EFTF. It 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.</div><div>The NDI BK10 drill hole is the tenth drill hole drilled as part of the East Tennant project aimed to constrain the East Tennant basement geology and calibrate predictive mineral potential maps to further our understanding of the prospectivity of this region. NDI BK10 reached a depth of 766 m and intersected basement at 734 m. Overlying these basement metasediments of the Alroy Formation, the drillhole intersected about 440 m of Proterozoic rocks underlain by ca. 300 m rocks of Cambrian age from the Georgina Basin.</div><div>During coring of NDI Carrara 1 and NDI BK10, cores containing oil stains were identified and sent for geochemical analysis to Geoscience Australia. This report presents the geochemical data from these oil stains including biomarker and isotopic data.</div>
Product Type
dataset
eCat Id
146452
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Digital Object Identifier
Keywords
- ( Project )
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- EFTF – Exploring for the Future
- ( Project )
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- Minex Cooperative Research Centre
- ( Project )
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- Barkly–Isa–Georgetown
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- Oil
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- Petroleum geochemistry
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- isotopes
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- Biomarkers
- theme.ANZRC Fields of Research.rdf
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- Exploration GeochemistryIsotope GeochemistryOrganic Geochemistry
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- Published_External
Publication Date
2022-07-20T00:49:21
Creation Date
2022-06-22T02:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Public release of raw geochemical data from oil stains recovered from NDI Carrara 1 and NDI BK10
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
<div>New data</div>
Parent Information
Extents
[-22.00, -16.00, 140.00, 134.00]
Reference System
Spatial Resolution
Service Information
Associations
Source Information