Product catalogue
Exploring for the Future—Preliminary HyLogger results of borehole samples from the Southern Stuart Corridor Project area. Northern Territory
The hyperspectral HyLoggerTM instrument for collecting high resolution spectra data of drill core and drilling chips is a widely used and powerful in mineral and energy exploration, including sediment hosted mineralisation and hydrocarbons. It enables mapping of hydrothermal, diagenetic, and weathering assemblages, clarification of stratigraphy, and determination of primary mineralogy.
This report presents key results of hyperspectral data from the HyLogger-3TM instrument collected from drilling in the Southern Stuart Corridor (SSC) project area in the Northern Territory conducted as part of Exploring for the Future (EFTF)—an eight year, $225 million Australian Government funded geoscience data and information acquisition program focused on better understanding the potential mineral, energy and groundwater resources across Australia.
The results show that HyLogger plots are in most cases in the most effective means of identification of stratigraphic contacts. HyLogger plots are also especially effective and determining the depth and mineralogy of weathering and distinguishing provenance in shallow transported material such as palaeovalley fill and alluvium. Geological observations are however still crucial, especially in determining texture, which cannot be determined by the HyLogger scans or from photographs of chips and core, and in cases where contamination obscures or confuses the spectral signals.
Weathering in the SSC can be determined by the appearance of dickite and poorly crystalline kaolinite. This allows a better determination of base of weathering than visual means: generally based of the presence of oxidised iron phases such as goethite and haematite (which are not definitive where the rocks already contained these prior to weathering), or where oxidised iron deposition has not occurred. This aids in depth of weathering mapping from regional AEM data.
The ability of the HyLogger to discriminate between swelling (montmorillonite) and non-swelling (kaolinite, dickite) clays is potentially significant in the prediction of aquifer properties and the validation of borehole MR methods. The detection of zones of potential dolomitisation and dedolomisation through mineralogy (presence of dolomite and possible secondary calcite and magnesite, respectively) in carbonate units has the potential to similarly predict properties in carbonate units, through the potential increase in porosity/permeability of the first and decreased porosity/permeability of the second.
Simple
Identification info
- Date (Creation)
- 2021-10-01
- Date (Publication)
- 2021-10-05T03:19:40
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/133933
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2021.012
- Cited responsible party
-
Role Organisation / Individual Name Details Author Clarke, J.D.A.
External Contact
- Name
-
Record
- Issue identification
-
RECORD: 2021/012
- Purpose
-
The results show that HyLogger plots are in most cases an effective means of identification of stratigraphic contacts. HyLogger plots are also particularly effective at determining the depth and mineralogy of weathering and distinguishing provenance in shallow transported material such as palaeovalley fill and alluvium. Geological observations are, however, still crucial, especially in determining texture, which cannot be determined by the HyLogger scans or from photographs of chips and core, and in cases where contamination obscures or confuses the spectral signals.
- Status
- Completed
- Point of contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Cathro, D.
MEG Internal Contact Resource provider Minerals, Energy and Groundwater Division
External Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
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
- theme.ANZRC Fields of Research.rdf
-
-
EARTH SCIENCES
-
- Project
-
-
EFTF
-
- Project
-
-
Exploring For The Future
-
- Keywords
-
-
Hylogger
-
- Keywords
-
-
hyperspectral
-
- Keywords
-
-
Western Davenport
-
- Keywords
-
-
Ti Tree
-
- Keywords
-
-
Alice Springs
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download the Record (pdf) [3.5 MB]
Download the Record (pdf) [3.5 MB]
- Distribution format
-
-
pdf
-
Resource lineage
- Statement
-
Sample Provenance
Samples consisted of chips and diamond cored intervals collected from drilling during 2018 in the Southern Stuart Corridor (SSC) project area in the Northern Territory conducted as part of Exploring for the Future (EFTF)—an eight year, $225 million Australian Government funded geoscience data and information acquisition program focused on better understanding the potential mineral, energy and groundwater resources across Australia.
Most holes had both cored and chipped intervals, these were amalgamated to form composite sections. Unfortunately a pallet of samples was lost during transit resulting in gaps in data and subsequent summary logs across the SSC project area. Partial holes (chipped intervals) missing from the analysis are: RN019449 (SSC18-03), RN019451 (SSC18-35), RN019457 (SSC18-62), RN019674 (SSC18-40) and RN019675 (SSC18-9A).
Data Collection
Logging was performed by The Geological Survey of South Australia in Adelaide in 2020 (Mauger & Gordon 2020) using the HyLogger-3 instrument.
Mauger, A. J. & Gordon, G. A. 2020. Southern Stuart Corridor Bores mud rotary core and chip HyLogger scanning for Geoscience Australia, Report Book 2020/00005. Department for Energy and Mining, South Australia, Adelaide
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/192303c2-ddd9-435d-a7c1-380a2fae2ee3
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Cathro, D.
MEG Internal Contact
Type of resource
- Resource scope
- Document
- Name
-
GA publication: GA Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/133933
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551