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Showing results for: [ Exploration Geochemistry ]
This is the data dump from the FAIMS server after the Coompana geochemical sampling field trip Nov 1-12 2017.
Coompana Regional Geochemistry - Field data collection - Published 29 Nov 2017
AutoIsocon is a standalone application for the rapid construction and comparison of isocon diagrams and mass balance calculations in metasomatic systems. This collection contains the applications for ... more64-bit Windows and Mac OS systems, together with a user guide and an example data set.less
SIEF Distal Footprints - Geochemical analysis software - Published 28 Jun 2017
Geochemical analyses of lateritic cover about the Greenbushes mineralised pegmatite deposit and surrounding terrain. Samples are dominantly of lateritic duricrust (nodular & pisolitic) and loose late... moreritic pisoliths and lateritic nodules. Major, minor and many trace elements were analysed and are listed.less
Legacy data - Laterite geochemistry about the Greeenbushes mineralised pegmatite deposit - Published 13 Mar 2017
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 May 2017
Geochemical dispersion of the DeGrussa deposit within its associated palaeodrainage system
RIB Sandfire - palaeochannel footprint d - Mineral Exploration - Published 27 Jan 2016