Melt inclusions were studied in chrome diopside from the Inagli deposit of gemstones in the Inagli massif of alkaline ultrabasic rocks of potassic affinity in the northwestern Aldan shield, Yakutia, Russia. The chrome diopside is highly transparent and has an intense green color. Its Cr 2 O 3 content varies from 0.13 to 0.75 wt %. Primary and primary–secondary polyphase inclusions in chrome dio...

The Sandaozhuang super-large W-Mo deposit is located in the southern margin of North China Craton, within well-known East Qinling Mo mineralization belt, and one typical skarn-type deposits China. Based on EMPA LA-ICP-MS analyses, major trace elements were presented, mineral chemistry magnetite at various stages was discussed. Combining field observations, petrography, geochemical characteristi...

This paper presents a quantitative modeling for delineating alteration zones in the hypogene zone of the Miduk porphyry copper deposit (SE Iran) based on the core drilling data. The main goal of this work was to apply the Ordinary Kriging (OK), Artificial Neural Networks (ANNs), and Concentration-Volume (C-V) fractal modelings on Cu grades to separate different alteration zones. Anisotropy was ...

Remote sensing plays an important role in mineral exploration. One of its proven applications is extracting host-rock lithology and alteration zones that are related to porphyry copper deposits. An Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) was used to map the Baogutu porphyry deposit alteration area. A circular alteration mineral zoning pattern was clearly observed ...

Abstract S-type granites correspond to reworking of pre-existing continental material and form by partial melting (meta)sediments. Early-to-mid Archaean are rare more frequently found, usually as relatively small intrusions, during the Neoarchaean Archaean-Proterozoic transition. In context geology, their paucity is therefore significant, in that it matches uncommon nature processes this period...