Showing results for: [ Geomorphology and Regolith and Landscape Evolution ]
The Rocklea Dome 3D Mineral Mapping project was conducted by the Western Australian Centre of Excellence for 3D Mineral Mapping from 2009 to 2012 to showcase the opportunities offered by existing hype... morerspectral remote and proximal sensing technologies for comprehensive minerals systems analyses.
Key achievements of the Rocklea Dome 3D Mineral Mapping project are (Haest et al., 2012 a,b; 2013):
•Quantification of iron oxide phases and associated mineralogy derived from hyperspectral data and validated using X-ray diffractometry and geochemistry:•iron (oxyhydr-)oxide content: RMSE of 9.1 wt % Fe
•Al clay content: RMSE 3.9 wt % Al2O3
•hematite/goethite ratio: RMSE 9.0 wt % goethite
•Spatial characterisation of vitreous vs. ochreus goethite
•Defining the Tertiary channel boundary using key mineralogical parameters, such as the kaolin crystallinity
•Modelling the iron ore resource of the Rocklea Dome CID
•Identification of drill holes that were sunk into barren (i.e. bedrock) lithologies, suggesting that about a third of drill holes could have been saved
•Detailed characterisation of clay mineralogy that is associated with distinct domains of the CID and its cover (i.e. kaolin group vs. Al-smectites vs. Fe-smectites)
•Characterisation of mineral assemblages in the Quaternary cover of the Tertiary channel (e.g. calcrete)
•Improvement of quality of mineral maps by application of vegetation unmixing methods
All of the above points showcase how hyperspectral data can be used for the whole of mine life cycle, from exploration to resource characterisation.
COE - 3D Mineral Mapping - Exploration Through Cover - Published 04 Jun 2020
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 Ra... morediometer) 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.
3D Mineral Map of Queensland - Stage 1 - mineral mapping - Published 06 Dec 2019
This data was collected as part of two research projects commissioned by Melbourne Water that investigated components of sediment dynamics in Western Port and its contributing rivers in Victoria, incl... moreuding:
- River TSS, TN, TP loads in Cardinia Ck, Bunyip R, Lang Lang R, Bass R (2015 back to beginning of records)
- Coastal bank erosion rates at Lang Lang (monitored from Nov 2012-June 2016 plus historical air photos back to 1947 for 8.6 km of coastline)
- Weather and coastal photographs, tide and groundwater heights at Lang Lang (Nov 2012-June 2016)
- Bay turbidity and extent of seagrass or macroalgae (1986-2015)
- Conceptual modelling of seagrass extent
Further information on the data is provided in the project reports
- Tomkins et al., 2013:
- Wilkinson et al., 2016:
Western Port Bay Melb Water - Coastal bank erosion and river loads - Published 08 Apr 2019
Supplementary files which accompany CRC LEME Open File Report 82.
Legacy data - CRC LEME Open File Report Series - Published 20 Aug 2018
A selection of 9-arcsecond resolution substrate surfaces (soil and landform) for the Australian continent, aggregated from 3-arcsecond source data. These substrate surfaces have been selected because ... morethey have been found to be relevant to biodiversity modelling using generalised dissimilarity modelling. These data are intended to be used along with a similarly compiled and spatially standardised 9-arcsecond gridded climatic layers. See links for related collections. less
DEE: Enhancing landscape data and analytic capability through knowledge transfer of GDM technology - Australian 9s environmental surfaces - Published 19 Jun 2018
Supplementary files which accompany the CRC LEME Open File Report 8. (CSIRO Division of Exploration Geoscience Report 2R, 1988. Second Impression 1998)
Legacy data - CRC LEME Open File Report Series - Published 10 May 2018
Supplementary files which accompany the CRC LEME Open File Report 18. (CSIRO Division of Exploration Geoscience Report 68R, 1989. Second Impression 1998)
Supplementary files which accompany the CRC LEME Open File Report 1 and CSIRO Division of Exploration Geoscience Report 390 (1st Revision): Robertson, I.D.M.; Butt, C.R.M. Atlas of weathered rocks. Pe... morerth, WA: CSIRO Exploration & Mining; 1997.less
Legacy data - CRC LEME Open File Report Series - Published 30 Apr 2018
Supplementary files which accompany CRC LEME Open File Report 3 (November 1998).
CSIRO Division of Exploration and Mining Report E&M24R, 1994. Second impression, 1998.
Research arising from CSIRO/AMIR... moreA (Australian Mineral Industries Research Association Limited) Regolith Geochemistry Projects 1987-199. The initial research program, "Exploration for concealed gold deposits, Yilgam Block, Western Australia" (1987-1993).less
Supplementary files which accompany the CRC LEME Open File Report 19, volumes 1 & 2. (CSIRO Division of Exploration Geoscience Report 105R, 1990. Second impression 1998)
Legacy data - CRC LEME Open File Report Series - Published 23 Apr 2018
Supplementary files which accompany CRC LEME Open File Report 10 (September 1998). This data includes multi-element geochemical, mineralogical and petrographic detail for Beasley Creek gold mine, West... moreern Australia.less
Geochemical dispersion of the DeGrussa deposit within its associated palaeodrainage system
RIB Sandfire - palaeochannel footprint d - Mineral Exploration - Published 27 Jan 2016
3D laser scan data of Jenolan Caves, NSW, Australia. Data were acquired using three 3D mobile mapping systems developed at CSIRO. The vast majority of the data was collected using the Zebedee 3D Mappi... moreng System, a handheld lidar system that generates maps from measurement collected as an operator holding the device traverses through the site. Other data were acquired from the bentwing 3D Aerial Mapping System, which has similar sensors to Zebedee mounted on a quadrotor MAV platform.
The primary representations provided are detailed 3D point cloud maps of the caves and the surface above them (approximately 2.3 billion points), as well as the trajectory estimate of the laser scanner as it was carried through the environment (approximately 28.4km over 22 hours of data collection).less
NewSLAM - Zebedee Cave Survey - Published 29 Jun 2015
3D laser scan data of Cliefden Caves, NSW, Australia. Data were acquired using the Zebedee 3D Mapping System, a handheld lidar system that generates maps from measurement collected as an operator hold... moreing the device traverses through the site. The primary representations provided are detailed 3D point cloud maps of the caves and the surface above them (approximately 532 million points), as well as the trajectory estimate of the laser scanner as it was carried through the environment.less
NewSLAM - Zebedee Cave Survey - Published 08 May 2015
3D laser scan data of Wellington Caves, NSW, Australia. Data were acquired using the Zebedee 3D Mapping System, a handheld lidar system that generates maps from measurement collected as an operator ho... morelding the device traverses through the site. The primary representations provided are detailed 3D point cloud maps of the caves and the surface above them (nearly 500 million points), as well as the trajectory estimate of the laser scanner as it was carried through the environment.less
NewSLAM - Wellington Caves Zebedee Survey - Published 28 Apr 2015