The classification of natural images is an essential task in computer vision and pattern recognition applications. Rock images are the typical example of natural images, and their analysis is of major importance in rock industries and bedrock investigations. Rocks are mainly classified into three types. They are Igneous, Metamorphic and Sedimentary. They are further classified into Andesite, Ba...

[1] Garnet pyroxenites are the most common deep lithospheric xenolith assemblages found in Miocene volcanic rocks that erupted through the central part of the Sierra Nevada batholith. Elemental concentrations and isotope ratios are used to argue that the Sierra Nevada granitoids and the pyroxenite xenoliths are the melts and the residues/cumulates, respectively, resulting from partial melting/f...

Kahang Cu Porphyry deposit is situated in the central part of a major Iranian magmatic belt, Urumieh-Dokhtar, in central Iran.There are several sub-volcanic stocks (e.g., porphyric granitoids rocks, quartz monzonite, diorite and monzodiorite-monzogranite)within Eocene volcanic and pyroclastic rocks consisting of basaltic, trachy-andesite and dacitic rocks. Hydrothermal alterations at the Kahang...

introduction agates are presumed as a kind of precious stone that could be formed in magmatic, metamorphic and even sedimentary environment. mechanism for agate formation is not clear and is produced in laboratories. some hot springs and geothermal activity or white chimneys in the ocean floor, have some deposits like chalcedony but never produce agate. agate formation temperature varies betwee...

Abstract This study of Sr-Nd initial isotopic ratios plutons from the North Patagonian batholith (Argentina and Chile) revealed that a secular evolution spanning 180 m.y., Jurassic to Neogene, can be established in terms magma sources, which turn are correlated with changes tectonic regime. The provenance composition end-member components source magmas represented by (87Sr/86Sr 143Nd/144Nd) plu...

The Carboniferous volcanic reservoirs in the Shixi area of Junggar Basin are complex and diverse. Identifying characteristics main factors controlling high-quality is key to increasing oil gas reserves production this area. Through core observations, thin section identification, physical property pore structure analyses, combined with data, development modes were analysed. results show that str...

The Tuscany Magmatic Province consists of a Miocene to Pleistocene association wide variety rock types, including peraluminous crustal anatectic granites and rhyolites, calcalkaline shoshonitic suites ultrapotassic lamproites. In addition the magma types already recognised, occurrence new, distinct type at Capraia Elba islands in mafic enclaves San Vincenzo rhyolites has been suggested by recen...