As a result of microscopic researches it has been determined that mineralogical composition the ore field consists hypogenic,vein and hypergen minerals. A number factors in formation texture types structure, including morphological properties minerals, characters solutions, affect tectonic processes after are not excluded. Due to influence above mentioned stratum, massive, nested textures repla...

The Qiyimuchang lead–zinc deposit is an important in the Erguna Massif on west slope of Daxinganling, for which material source and age mineralization remain unclear. has been observed to occur Jurassic volcanic strata as a vein-like orebody, its strike nearly perpendicular that regional structures orogenic belt. ore mainly composed sphalerite, galena, chalcopyrite, pyrite, quartz, hydrothermal...

introduction the senj deposit has significant potential for different types of mineralization, particularly porphyry-like cu deposits, associated with subduction-related eocene–oligocene calc-alkaline porphyritic volcano-plutonic rocks. the study of fluid inclusions in hydrothermal ore deposits aims to identify and characterize the pressure, temperature, volume and fluid composition, (ptx) cond...

Granite-related uranium ore is an important resource type in China and worldwide. Whether the geochemical theory “U6+ oxidative migration U4+ reductive precipitation” applicable to granite-related mineralization has not been determined. Detailed field petrographic work, as well scanning electron microscopy energy spectrum analysis, are conducted this study analyze relationship between minerals ...

Cyclic microfracturing and epitaxial crystal growth have long been recognized in crack-seal veins, but an understanding of a single cycle is still missing. Here we present phase-field model that includes both fracture mechanics crack propagation, on the walls, repeating this multiple times polycrystalline, microporous quartz rock. Our simulations two end members: If vein completely seals, it st...

Quartz veins in the Jendi area and its surroundings are formed by geological structures with distributions patterns that need to be known. This study uses data on striation, quartz vein orientation, metal content veins. The use of this aims determine relationship between direction pattern mineral main structure forms it. results can useful determining structural model distribution area. researc...

Chloride-rich brines are increasingly recognized as playing an important role in high pressure and temperature metamorphic and magmatic systems. The origins of these saline multicomponent fluids are debated, but experimental evidence suggests that regardless of their origin they must be important agents of rock alteration and mass transfer wherever they occur. Studies of the solubility of quart...