The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies crystallography structural defects are scarce. For clarification, we investigated a series natural crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples Drenjak gold mineralisation showed near-stoichio...

The Alxa Block is located in the middle part of Central Asian orogenic belt, which coupling belt North China, Tarim, and Kazakhstan Plates. east–west-trending deep faults control stratigraphic distribution magmatic activity region. To detect EW-trending ore-controlling structures, a 440 km NS section magnetotelluric sounding was conducted from Minle to Ejinaqi. phase tensor electrical principal...

Current research emphasis is more on the utilization of materials that are considered as waste. Tailings and fly ash are major category of industrial wastes, whose disposal is problematic from environmental point of view. In this present research, Industrial byproducts, namely, lime (CaO) and class F type fly ash have been used as candidate materials along with the partial addition of ordinary ...

Deep-sea mining is an emerging marine industry that presents particularly complex challenges due to its multi-faceted technological, scientific, environmental, social, industrial, political, economic and legal aspects, all of which must be addressed to achieve commercially viable results. These aspects are governed by the burgeoning regulatory regime promulgated by the International Seabed Auth...

Purpose. Studying the geological features of large industrial Atasu type ore objects. Methodology. Critical analysis literature and stock materials, comparative factors characteristic stratiform ores, stages peculiarities formation depending on processes volcanism, results isotope dating rocks. Findings. Participation volcanism (magmatism) in forming deposits ferromanganese barite-polymetallic ...

The general features of several important mineral deposits polymetallic character in the Republic Northern Macedonia that have been actively exploited past are described. These include Buchim copper mine and Sasa, Zletovo Toranica lead-zinc mines, as well some ore prospects extensively explored for years. In addition, sites with known reserves, but which not yet at exploitation stage presented,...

Research subject. The orogenic marginal-continental and collisional volcanic-plutonic belts, the zonality of magmatism metallogeny within them, as well relationship endogenous with magmatic geodynamics belt formation. Materials methods include long-term studies Devonian Upper-Paleozoic belts Kazakhstan Cretaceous-Paleogenic Sikhote-Alin; an analysis alterations in material parameters magmatites...