We modeled water exsolution from a growing and crystalizing felsic magma body using conductive thermal model with simplified physical mechanisms of volatile transport. Magma solidification leads to the release initially dissolved in melt. Solidification behaviour depends, turn, on content. The is channeled where solidified enough form crystal network rapidly ascends until it encounters solid ro...

the study area is located in the northeast of iran. miankuhi formation is 500m thick and comprises homogeneous shales, brown granular sandstone and siltstone. in this study, 45 samples were taken from miankuhi shales and sandstones in order to determine their tectonic origin by using a polarizing microscope. samples were analysed by x-ray fluorescence (xrf) method to determine their chemical co...

Abstract The exposed rocks in Abu Hawis area, North Eastern Desert (NED), Egypt, consist of tonalite-granodiorite and monzogranite, dissected by post-granite felsic (microgranite rhyolite) mafic (basaltic-andesite) dikes. investigated radioactive minerals Zr-, Nb-, REE-bearing were restricted to dikes having E–W NE–SW trends. Uraninite, uranothorite, thorite occur as the main microgranite dikes...

Karapınar-Karacadağ Volcanic Rocks (KKVR) have very complex magmatic history and outcropped the southwestern part of Cappadocia Province (Central Anatolia). Here we present petrography whole-rock chemistry enclave-bearing rocks to constrain their source evolution history. These petrographic observation geochemical data reveal that enclaves in volcanic are magma mixing/mingling (MME), segregatio...

[1] Analysis of receiver functions from an eight-station network on the Saudi Arabian shield indicates that the Moho depths vary between 35–38 km. The crust appears to be rather felsic in nature as evidenced by Poisson’s ratios of 0.25–0.27. A prominent negative phase following the Moho conversion is suggestive of a zone of velocity inversion. Indication of mantle stratification is observed ben...

We present a new crustal cross section through the east-west trending ultrahigh-pressure (UHP) Dabie Shan orogenic belt, east central China, based on a 400km-long seismic refraction profile. Data from our profile reveal that the cratonal blocks north and south of the orogen are composed of 35-km-thick crust consisting of three layers (upper, middle, and lower crust) with average seismic velocit...

This study investigated, in detail, the characteristics of Late Triassic fine-grained sediments third member Xujiahe Formation (Xu-3 Member), Western Sichuan Depression, and paleoenvironmental evolution during their deposition through petrological interpretation, mineralogical composition characterization, element geochemical analysis. According to composition, Xu-3 Member can be divided into t...

A program of geologic mapping and lithogeochemical and geochronological sampling has been carried out over a 745-km area of the Atacama Desert surrounding the porphyry Cu deposits at Escondida, Zaldívar, and Chimborazo (Cordillera de Domeyko, northern Chile). The purpose of this study was to examine the regional tectonic and magmatic setting of this preeminent porphyry Cu district for evidence ...