3D Mineral mapping of Queensland - Version 2 ASTER and related geoscience products
The digital 3-dimenional (3D) mineral mapping suite of Queensland comprises ~20 “standardized” products at the spectral resolution of the ASTER (Advanced Space-borne Thermal Emission and Reflection Radiometer) sensor and generated from publicly-available satellite, airborne, field and drill core spectral data spanning the visible near infrared (VNIR; 0.4 to 1.0 µm), shortwave infrared (SWIR; 1.0 to 2.5 µm) and thermal infrared (TIR; 7.5 to 12.0 µm) wavelength regions, including:
1. Satellite ASTER maps at both 30 m and 90 m pixel resolution with complete coverage of the state of Queensland, i.e. 1.853 million km²;
2. Airborne HyMap maps at ~5 m pixel resolution with a coverage of ~25,000 km2 from areas across north Queensland;
3. Field point samples (~300) from the National Geochemical Survey of Australia (NGSA) collected from a depth of 0-10 cm of flood overbank sediments;
4. Drill-core profiles (~20) of the National Virtual Core Library (NVCL) selected from the area around the Georgetown seismic line (07GA-IG2).
Key to the processing of the remote sensing data-sets (ASTER and HyMap) was the implementation of unmixing methods to remove the effects dry and green vegetation. This unmixing was not applied to the Australian ASTER geoscience maps released in 2012 (called here Version 1 or V1) resulting in extensive areas with little/no mineral information because of the need to apply masks. The vegetation unmixing methods used in the Version 2 (V2) processing of the ASTER and HyMap imagery has resulted in very few areas without coherent mineral information.
The resultant V2 “mineral group” products were designed to measure mineral information potentially useful for mapping: (i) primary rock composition; (ii) superimposed alteration effects; and (iii) regolith cover. These V2 products may assist in mapping soil properties and groundwater conditions. However their relatively low spectral resolution (based on ASTER’s 14 VNIR-SWIR-TIR bands) means that they do not provide the high level of mineralogical detail available from hyperspectral systems (>100 spectral bands), like HyMap and the HyLogger. Nevertheless, the relatively low spectral resolution of ASTER means that all other sensor data can be spectrally resampled to that resolution. Furthermore, the ASTER global data archive, which now spans entire Earth’s land surface <80degrees latitude, means that it can be used as global base-map for integrating all other spectral data.
Simple
Identification info
- Date (Publication)
- 2019-12-05
- Date (Revision)
- 2019-12-05
- Edition
- v4
Publisher
Author
Author
Author
Author
Author
Author
Identifier
- Keywords (Discipline)
-
- Mineral mapping
- 3D
- ASTER
- HyMap
- NVCL
- NGSA
- vegetation unmixiing
- Geology
- Alteration
- Regolith
- Queensland
- Australia
- Version 2
- ANZSRC Fields of Research
Extent
Temporal extent
- Time period
- 2014-12-01 2016-12-01
Resource constraints
- Use limitation
- The Creative Commons Attribution 4.0 International (CC BY 4.0) license allows others to copy, distribute, display, and create derivative works provided that they credit the original source and any other nominated parties. Details are provided at https://creativecommons.org/licenses/by/4.0/
- File name
- 88x31.png
- File description
- CCBy Logo from creativecommons.org
- File type
- png
- Title
- Creative Commons Attribution 4.0 International Licence
- Alternate title
- CC-BY
- Edition
- 4.0
- Access constraints
- License
- Use constraints
- Other restrictions
- Other constraints
- Data is accessible online and may be reused in accordance with licence conditions
Resource constraints
- Classification
- Unclassified
- Credit
- All Rights (including copyright) CSIRO, Geological Survey of Queensland 2017.
Distribution Information
Distributor
Distributor
- Distribution format
-
- OnLine resource
- http://hdl.handle.net/102.100.100/44156?index=1
Resource lineage
- Statement
- The raw ASTER data used in this project are freely available from the United States Geological Survey (USGS) Land Processes Distributed Active Archive Centre (LPDAAC) (https://lpdaac.usgs.gov/dataset_discovery/aster/aster_products_table/ast_l1t) as well as NASA’s REVERB (http://reverb.echo.nasa.gov) and Japan’s Advanced Institute for Science Technology (AIST) https://gbank.gsj.jp/madas/map. The Australian ASTER Geoscience (V1) Maps can be downloaded from CSIRO’s Data Access Portal (DAP) (https://data.csiro.au/dap/landingpage?pid=csiro%3A6182) and Geoscience Australia’s Australian Geoscience Information Network, Geoscience Australia (AUSGIN) (http://portal.geoscience.gov.au/gmap.html). The NVCL data can be downloaded from http://www.auscope.org.au/nvcl or http://portal.geoscience.gov.au/gmap.html. The National Geochemical Survey of Australia (NGSA) spectral data is accessible via CSIRO’s Data Access Portal http://www.ga.gov.au/about/projects/minerals-archive/concluded/national-geochemical-survey.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
- Reference system type
- Geodetic Geographic 2D
Metadata
- Metadata identifier
-
urn:uuid/30d94622-52aa-57f6-977f-24235b0faada
- Title
- TERN GeoNetwork UUID - Commonwealth Scientific and Industrial Research Organisation
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/30d94622-52aa-57f6-977f-24235b0faada
Point of truth URL of this metadata record
- Date info (Creation)
- 2019-12-05T11:34:48+11:00
Metadata standard
- Title
- ISO 19115-1:2014/AMD 1:2018 Geographic information - Metadata - Fundamentals
- Edition
- 1
Metadata standard
- Title
- ISO/TS 19115-3:2016
- Edition
- 1.0
Metadata standard
- Title
- ISO/TS 19157-2:2016
- Edition
- 1.0
- Title
- Terrestrial Ecosystem Research Network (TERN) Metadata Profile of ISO 19115-3:2016 and ISO 19157-2:2016
- Date (published)
- 2021
- Edition
- 1.0