This paper investigates the long-term dispersal of trace metals and their impact on environment long after mine closure in French Alps. Three statistical methods derived from modern mining (Exploratory Data Analysis, fractals Sediment Quality Index) were applied to geochemical analyses streambed sediments produce mineral prospectivity maps. About 5% samples have a poor or marginal quality may a...

The Great Basin of the Western United States has thin continental crust and geologic structures that have controlled the emplacement of significant precious and base metal mineralization. Many of the mineral deposits in the Great Basin were emplaced by hydrothermal processes that altered the mineralogy of their host rock assemblages and facilitated concentration of metals. In the 1960’s and 197...

Exploring covered terrains is a challenge that requires the integration of multiple sources knowledge, particularly in initial stages mineral exploration. The Apuí region, located Southwestern Amazon Craton, has small and constant gold production, despite deep cover limited geological knowledge. mainly hosted quartz veins breccias cut Paleoproterozoic volcano-sedimentary sequences. occurrences ...

Merging hyperspectral data from optical and thermal ranges allows a wider variety of minerals to be mapped and thus allows lithology to be mapped in a more complex way. In contrast, in most of the studies that have taken advantage of the data from the visible (VIS), near-infrared (NIR), shortwave infrared (SWIR) and longwave infrared (LWIR) spectral ranges, these different spectral ranges were ...

Certain alteration minerals are used to identify the hydrothermally altered rocks. In volcanic rocks, mainly potassic, phyllic (sericitic), propylitic, argillic alteration and silicification are observed. The role of remote sensing in alteration mapping is the differentiation of the minerals that are unique for different alteration types. In this study, Landsat TM 5 images are used. General alt...

the study area covers the northern part of the baft geological map (scale of 1:100 000 ). several porphyry and vein-type mineralization are reported from this area. a topic that is discussed in the mineral exploration community is the use of remote sensing and airborne geophysics for porphyry type mineralization. which one is more reliable and efficient in hydrothermal alteration mapping? airbo...

The application of machine learning (ML) algorithms for processing remote sensing data is momentous, particularly mapping hydrothermal alteration zones associated with porphyry copper deposits. unsupervised Dirichlet Process (DP) and the supervised Support Vector Machine (SVM) techniques can be executed main objective this investigation to practice an algorithm that accurately model best traini...

This work describes a knowledge-guided clustering approach for mineral potential mapping (MPM), by which the optimum number of clusters is derived form a knowledge-driven methodology through a concentration-area (C-A) multifractal analysis. To implement the proposed approach, a case study at the North Narbaghi region in the Saveh, Markazi province of Iran, was investigated to discover porphyry ...

X-ray mapping is increasingly used in the geological sciences for qualitative observations of textures, mineral zoning, and element distribution among rock components [1-4]. We combine mapping with an aggressive program of image analysis in deepening our understanding of the early solar system through the analysis of chondritic meteorites [5, 6]. Chondrites are “sediments” that accreted in the ...