A5017329957- Geochemistry and Geologic Mapping
- Soil Geostatistics and Mapping
- Remote-Sensing Image Classification
- Mineral Processing and Grinding
- Hydrocarbon exploration and reservoir analysis
- Geological and Geochemical Analysis
- Geological and Geophysical Studies
- Planetary Science and Exploration
- Geophysical and Geoelectrical Methods
- Remote Sensing in Agriculture
- Landslides and related hazards
- Geophysical Methods and Applications
- Soil Moisture and Remote Sensing
- Geological Modeling and Analysis
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geographic Information Systems Studies
- Remote Sensing and LiDAR Applications
- Mineralogy and Gemology Studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Spectroscopy and Chemometric Analyses
- Spacecraft Design and Technology
- Inertial Sensor and Navigation
- Climate change and permafrost
- Urban Heat Island Mitigation
University of Twente
2017-2024
RMIT University
1993-2024
IP Australia
2024
University of Bern
2022
GeoInformation (United Kingdom)
2022
Commonwealth Scientific and Industrial Research Organisation
2001-2016
Australian Resources Research Centre
2005-2016
Mineral Resources
2016
MIT University
1993-2015
The University of Melbourne
2015
Abstract The Earth’s surface comprises minerals diagnostic of weathering, deposition and erosion. first continental-scale mineral maps generated from an imaging satellite with spectral bands designed to measure clays, quartz other were released in 2012 for Australia. Here we show how these improve our understanding erosional depositional processes the context changing weather, climate tectonics. clay composition map shows kaolinite has developed over tectonically stable continental crust...
G eologists have been instrumental in shaping Earth observation satellite missions; likewise, geology has the subject of many remote sensing studies [1].Applications optical date back to some early using Resources Technology Satellite-1, predecessor Landsat program [2].In 1980s, seventh channel short-wave infrared (SWIR) thematic mapper was added, as a result spectroscopic mineral by geologists [58].A subsequent satellite-borne instrument, Advanced Spaceborne Thermal Emission and Reflection...
The Japanese ASTER sensor on board the US Terra satellite was launched in December 1999 to establish a spaceborne capability for high spatial, multispectral visible-shortwave infrared and thermal remote sensing data mapping of Earth's environment. Mt Fitton test site South Australia chosen ability instrument geological having been previously surveyed by several IR airborne instruments field campaigns collecting relevant spectral measurements. These previous surveys successfully mapped suite...
In this study we tested the feasibility of thermal infrared (TIR) wavelength region (within atmospheric window between 8 and 11.5 μm) together with traditional solar reflective wavelengths for quantifying soil properties coarse-textured soils from Australian wheat belt region. These have very narrow ranges texture organic carbon contents. Soil surface spectral signatures were acquired in laboratory, using a directional emissivity spectrometer (μFTIR) TIR, as well bidirectional reflectance...
There is considerable interest in optimizing geothermal exploration techniques via the mapping of alteration and evaporate mineralisation, as well thermal emissions associated with geothermally active areas on Earth's surface. Optical satellite sensor technologies, improvements processing algorithms means for large scale (e.g. 1:250,000) spatial data distribution are required detecting both these attributes. The extensive visible, -near, -shortwave infrared (VNIR-SWIR-TIR) archive acquired...
Geothermal systems can be used to produce low-emission energy throughout the day and night, regardless of weather conditions. These features make geothermal a sustainable reliable source, which exploited on much larger scale than it is now. Remote sensing techniques support detecting areas potentially suitable for production, thereby reducing costs preliminary exploration. The Ecosystem Spaceborne Thermal Radiometer Experiment Space Station (ECOSTRESS) provide nighttime thermal imagery,...
Remote sensing systems are largely used in geology for regional mapping of mineralogy and lithology mainly from airborne or spaceborne platforms. Earth observers such as Landsat, ASTER SPOT equipped with multispectral sensors, but suffer relatively poor spectral resolution. By comparison, the existing hyperspectral capable acquiring imagery narrow bands, beneficial detailed analysis geological remote data. However, vertical exposures, those platforms inadequate options since their spatial...
Satellite-based hyperspectral imaging became a reality in November 2000 with the successful launch and operation of Hyperion system on board EO-1 platform. is pushbroom imager 220 spectral bands 400-2500 nm wavelength range, 30 meter pixel size 7.5 km swath. Pre-launch characterization measured low signal to noise (SNR<40:1) for geologically significant shortwave infrared (SWIR) region (2000-2500 nm). The impact this SNR Hyperion's capacity resolve detail was evaluated Mount Fitton test site...
This study evaluated the geological mapping potential of recently released Australian CSIRO-GA ASTER satellite geoscience products in providing mineral abundance and compositional information. A range environments was examined by using test sites including temperate cultivated New South Wales area Wagga Wagga, semi-arid rangeland Mt Fitton Australia. Data integration derived undertaken with geophysical data, digital elevation models fractional vegetation cover The demonstrated that these can...
ABSTRACT Hyperspectral remote sensing data from the Eastern Fold Belt, Mount Isa Inlier, Australia were compared with petrographic and geochemical studies to map spatial extension compositional variations of Proterozoic granitoids endoskarns as well hydrothermal alteration patterns in adjoining metasedimentary successions. Detailed analysis spectral shows an almost circular zoning Mallee Gap Granite, which was emplaced during a late phase Mesoproterozoic Williams event. A combination...
Multispectral remote sensing of hydrothermal alteration in volcanogenic massive sulfide (VMS) ore systems mafic crust is relatively uncommon, part due to the short-wave infrared spectral similarity several key minerals: epidote, chlorite, actinolite, and serpentine. In this study, we developed regional mosaic generation classification workflows for Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) imagery discriminate these minerals over entire Semail ophiolite (Oman–UAE)....
Abstract Exploration and prioritization of potentially mineralized areas by integrating different geoscientific datasets help to manage the time costs an exploration project. In this study, copper explored were done on Kerman belt, which was formed due subduction Arabian plate under Iranian plate. After processing layers (geology, hydrothermal alteration zones, stream sediment geochemistry, airborne geophysics), analytic hierarchy process (AHP) method used compute weights a decision-making...
The ability of thermal and shortwave infrared spectroscopy to characterise composition texture was evaluated using both particle size separated soil samples natural soils. Particle analysis separation into clay, silt, sand-sized fractions undertaken examine possible relationships between quartz clay mineral spectral signatures texture. Spectral indices, based on specular volume scattering features, were found discriminate mineral-rich from mostly coarser quartz-rich sandy a lesser extent the...
Abstract For many regions on Mars, the surface composition and its geological history have been debated in literature. Because of limited coverage situ measurements, either new data or processing methodologies are required to get a better understanding Martian geology. This paper presents results multivariate, unsupervised, analysis underutilized CRISM (Compact Reconnaissance Imaging Spectrometer) multispectral mapping mode set for type analysis. The devised summary products Pelkey et al....
AbstractMineralogical and geological maps are now possible through a new generation of airborne satellite systems including the 126-band HyMap 14-band satellite-borne ASTER imaging sensors. Data from both these technologies were tested for their ability to map host rock mineralogies associated with Woodie manganese (Mn) mineral deposits. A detailed study was conducted over deposits using processed data in conjunction field laboratory data. In addition, products also generated other...
One of the major problems faced by application geological remote sensing is its potential limitation in areas a temperate climate with agricultural cultivation, limited outcrops and vegetation cover. This was issue experienced when it attempted to use multi-spectral satellite Advanced Spaceborne Thermal Emission Reflectance Radiometer (ASTER) imagery assist updating 1:100,000 mapping Ardlethan/Barmedman map sheets central New South Wales (NSW), Australia. Most successful applications have...
The alteration mineralogy of a porphyry-skarn system near Yerington, Nevada, was mapped using combined airborne hyperspectral HyMap and SEBASS data. VNIR-SWIR data provided information about the abundance levels Tschermak substitution in white micas, as well mapping Mg-Fe chemistry chlorite. TIR unique Fe-Al garnet Na-Ca plagioclase feldspar. Both wavelength regions calcite, dolomite, amphibole epidote. derived mineral maps were validated through spectral, mineralogical chemical analyses...
An accuracy assessment of a classified thematic map is critical for the success remote sensing project. The identification and quantification sources mineral maps derived from satellite images enable confident decisions to be made further exploration operations. Nineteen rock samples were collected different lithological units hydrothermally altered Kuh Panj Cu porphyry occurrence within south-eastern part Iran. SPECIM hyperspectral imaging was applied samples, followed by X-ray diffraction...
Mineral composition can be determined using different methods such as reflectance spectroscopy and X-ray diffraction (XRD). However, in some cases, the of mineral maps obtained from with XRD shows inconsistencies interpretation estimation (semi-)quantitative abundances. We show why these discrepancies exist how should they interpreted. Part explanation is related to sample choice preparation; another part fact that clay minerals are active short-wave infrared, whereas other elements not....