Product catalogue
East Tennant whole rock inorganic geochemistry data release
As part of Geoscience Australia's Exploring for the Future program, the East Tennant region, which is centred on the Barkly Roadhouse in the Northern Territory, was identified as having favourable geological and geophysical indicators of mineral systems potential. Potentially prospective stratigraphy in the East Tennant region is completely concealed beneath Mesoproterozoic to Quaternary cover sequences. Prior to 2020 basement rocks in the East Tennant region were only known from a handful of legacy boreholes, supported by geophysical interpretation. In order to test geophysical interpretations and obtain additional samples of basement rocks for detailed analysis, a stratigraphic drilling campaign was undertaken in the East Tennant region as part of the MinEx CRC’s National Drilling Initiative. Ten stratigraphic boreholes were drilled through the cover sequences and into basement for a total of nearly 4000 m, including over 1500 m of diamond cored basement rocks to be used for scientific purposes.
Inorganic geochemical samples from East Tennant National Drilling Initiative boreholes were taken to characterise cover and basement rocks intersected during drilling. Two sampling approaches were implemented based on the rocks intersected:
1) Borehole NDIBK04 contained localised sulphide mineralisation and elevated concentrations of several economically-significant elements in portable X-ray fluorescence data. In order to understand the geochemical variability and distribution of elements important for mineral system characterisation, the entire basement interval was sampled at nominal one metre intervals. This spacing was reduced to between 0.5 and 0.25 m from 237 m to 263 m to better understand a more intense zone of mineralisation, and
2) Samples from boreholes NDIBK01, NDIBK02, NDIBK03, NDIBK05, NDIBK06, NDIBK07, NDIBK08, NDIBK09 and NDIBK10 were selected to capture lithological and geochemical variability to establish bulk rock geochemical compositions for further interpretation. Attempts were made to sample representative, lithologically consistent intervals.
A total of 402 samples were selected for analysis. Sample preparation was completed at Geoscience Australia and Bureau Veritas, with all analyses performed by Bureau Veritas in Perth. All samples were submitted for X-ray fluorescence (XRF), laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), FeO determination, and loss on ignition (LOI). Samples from borehole NDIBK04 also underwent total combustion C and S, and Pb collection fire assay by ICP-MS for determination of Au, Pt and Pd concentrations.
This data release presents inorganic geochemistry data acquired on rock samples from the ten East Tennant National Drilling Initiative boreholes.
Simple
Identification info
- Date (Creation)
- 2022-03-22T11:00:00
- Date (Publication)
- 2022-03-30T21:49:49
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/146418
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/146418
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice
- Purpose
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Inorganic geochemical samples from the East Tennant National Drilling Initiative boreholes were taken to characterise cover and basement rocks intersected during drilling. These data address fundamental geological objectives in the East Tenant region, including informing stratigraphic correlations with exposed basement rocks in the adjacent Warramunga and Murphy provinces, understanding tectonic and magmatic processes, identification of mineral system footprints, and determining representative ‘background’ values for East Tennant lithologies. Geochemical samples were also taken to compliment other analyses, such as U/Pb geochronology.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Schofield, A.
Internal Contact Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2021-08-30 2022-03-01
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Project
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Exploring for the Future
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- Project
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Barkly-Isa-Georgetown
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- Project
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East Tennant
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- Project
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MinEx CRC
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- Project
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National Drilling Initiative
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- Keywords
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Geochemistry
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- Keywords
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Assay
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- Keywords
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Inorganic
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- Keywords
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Whole rock
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- theme.ANZRC Fields of Research.rdf
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Earth Sciences not elsewhere classified
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Geochemistry not elsewhere classified
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Inorganic Geochemistry
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Geology not elsewhere classified
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Addressee
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Role Organisation / Individual Name Details User Any
- Use constraints
- License
- Use constraints
- Other restrictions
- Other constraints
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(c) Commonwealth of Australia (Geoscience Australia) 2021
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
-
Australian Government Security Classification System
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download Data (csv) [316 KB]
Download Data (csv) [316 KB]
- Distribution format
-
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csv
- File decompression technique
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none
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Resource lineage
- Statement
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Data presented in this release was acquired through geochemical analysis at Bureau Veritas in Perth. Upon receiving the data, rigorous quality assurance and quality control measures were implemented, including checking of analytical blanks for contamination, assessing the variability of reference materials, and checking duplicate pairs for analyte reproducibility. Data presented in this release satisfy quality assurance and quality control measures. Final geochemical data is stored in Geoscience Australia's inorganic geochemistry database and is also available through Geoscience Australia's Exploring for the Future Data Discovery Portal ( https://portal.ga.gov.au/persona/eftf).
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/e549a272-81a5-45d1-a29f-587ce15e9571
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Schofield, A.
Internal Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/146418
- Date info (Creation)
- 2022-03-30T21:22:10
- Date info (Revision)
- 2022-03-30T21:22:10
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551