The geochemical analysis was carried out in the center-south portion of state Bahia, semi-arid region where outcrop Paramirim Complex, Boquira Unit, Granite, Veredinha Serra do Espinhaço, detritus coverings and alluvial deposits. Unit is known for lead-zinc mineralization. In this unit operated mine, considered largest lead zinc mine Brazil, until it suddenly abandoned, leaving significant envi...

This paper presents the results of complex hydro-geochemical studies natural waters Kastropol tract. It was found that studied are characterized mainly by HCO3 Ca and Mg-Ca composition with a total mineralization value varying in range from 220 to 2306 mg/dm3 silicon content 0.78 6.08 . revealed geochemical parameters medium vary reducing oxidizing Eh -146.6 – +275.9 mV, pH 7.4 8.5 O2 1.80 7.73...

The Geological Survey Office (GSO) undertook a pilot study with the objective of assessing the ability of Survey data to support modern quantitative mineral potential modelling techniques. The Yarrol pilot project was designed to audit digital data sets routinely produced by the GSO, and to provide mineral assessment outputs relevant to both industry and Government decision-making processes. Th...

Matrix mineralization is a terminal process in osteoblast differentiation, and several approaches have been introduced to characterize the process in tissues or cultured cells. However, an analytical technique that quantitates in vitro matrix mineralization of live cells without any labeling or complex treatments is still lacking. In this study, we investigate a simple and enhanced optical meth...

Known mineralized locations and randomly chosen non-mineralized are used traditionally as training samples in data-driven mineral prospectivity mapping (MPM). In this paper, we took advantage of (a) the variable importance partial dependence plot, which enable interpretation random forest (RF) modeling, (b) synthetic minority over-sampling technique, investigated efficacy outlier-based for MPM ...

New occurrences of free gold were identified during fieldwork at outcrops located in the western part of the Castro Basin, state of Paraná. These are associated with silicified and sulfide-rich zones in hydrothermally-altered volcanic rocks. The aerogeophysical data indicate that the areas of the new targets show high K and eU relative to eTh, suggesting intense hydrothermal alteration. The str...

The catchment (bedrock and soil) sediments of lake Bol?t?u, Romania were studied by high resolution multi-methodological investigations to characterize paleoenvironmental formation conditions. Particle size analyses, optical cathodoluminescence microscopy, FTIR-ATR Raman spectroscopy, X-ray powder diffraction, XRF applied for microtextural, chemical, micro-mineralogical embedded organic materia...

This study reports major, minor, and trace element data and Sr isotope ratios for 11 uranium ore (uraninite, UO2þx) samples and one processed uranium ore concentrate (UOC) from various U.S. deposits. The uraninite investigated represent ores formed via different modes of mineralization (e.g., highand lowtemperature) and within various geological contexts, which include magmatic pegmatites, meta...