The Ascutita porphyry Cu-Mo prospect is located in the SW Poiana Rusca Mountains, Romania. Current assessment estimates a resource of 110 Mt @ 0.15 % Cu-equivalent. In relatively low-grade deposits such as this, by-products Ag (2–3 ppm) are important determining economic feasibility overall orebody. Assayed Cu and have clear downhole correlation. absence other silver-bearing minerals, or correl...

Acid resins are residues characterised by elevated concentrations of hydrocarbons and trace elements, which were produced by mineral oil industries in Central Europe during the first half of the last century. Due to the lack of environmental legislation at that time, these wastes were dumped into excavated ponds in public areas without further protection. In this work, the long-term effects of ...

• Thermal annealing of Cu 2 ZnSnS 4 solar cell in air improved the characteristics. The band gap decreased with thermal air. Cd diffusion was observed from CdS to . Increase external quantum efficiency hot-plate annealing. In this work, a detailed study effect treatment (hot plate) on Mo/CZTS/CdS/i-ZnO/ITO carried out, which promotes contained window layer towards absorber CZTS. out at temperat...

This paper describes unusual graphite–sulfide deposits in ultramafic rocks from the Serranı́a de Ronda (Spain) and Beni Bousera (Morocco). These deposits occur as veins, stockworks and irregular masses, ranging in size from some centimeters to a few meters in thickness. The primary mineral assemblage mainly consists of Fe–Ni–Cu sulfides (pyrrhotite, pentlandite, chalcopyrite and cubanite), graph...

Prospectivity modelling has been completed over the Lachlan Fold Belt, New South Wales, Australia, using the GIS based weights of evidence modelling technique to target porphyry Cu-Au, associated skarn Cu-Au, orogenic Au and VMS Au mineralisation. The Lachlan Fold Belt is a 700 km wide belt of Paleozoic accretionary terrains, stretching from Queensland to Tasmania. Porphyry and skarn mineralisa...

Local structural property of an image is often considered in image enhancement with various high/low pass filters. Spatial association indexes (autocorrelation, covariance, and variogram) have been commonly used to characterize the local structure of surfaces for data interpolation in kriging. Singularity is another index measuring the scaling invariant property of measures from a multifractal ...

Kudz Ze Kayah (KZK) and Wolverine are volcanogenic massive sulphide deposits hosted by Early Mississippian meta-rhyolites, marine metasediientmy rocks and intermediate to mafic met&offs of the Yukon Tanana Terrane in the Finlayson Lake area, southern Yukon (Figure 1). This area became a focus of intense exploration in late 1994, following Cominco’s discovery of significant massive sulphides ass...

The hand stencils of European Paleolithic art tend to be considered of pre-Magdalenian age and scholars have generally assigned them to the Gravettian period. At El Castillo Cave, application of U-series dating to calcite accretions has established a minimum age of 37,290 years for underlying red hand stencils, implying execution in the earlier part of the Aurignacian if not beforehand. Togethe...

The focus of this thesis is the mineralogy, chemistry, and the understanding of the origin of small (1-5 cm diameter) miarolitic cavities observed in two altered andesitic dikes on West Spanish Peak, Colorado. Twenty rock samples were collected for analysis, and from them 42 thin sections were made for petrographic investigations. Eight of these thin sections were polished and analyzed with the...