The radionuclide concentrations of eU (ppm), eTh K (%) and dose rate values were measured in Sarıçiçek (Gümüşhane) Sarıhan (Bayburt) granodiorites for a duration 5 minutes at each 532 measurement points. radioelement ratios (eU/eTh, eU/K, eTh/K) indicating the origins rocks, geochemical indicators (Ume, F parameter, eU-(eTh/3,5) rate) showing uranium mobility calculated mapped within study area...

principal skarn deposits along the northern margin of the ahar batholith from west to east include mazraeh, vine and gowdoul skarn deposits. among these skarn deposits, the mazraeh cu-fe skarn deposit is the most typical skarn deposit in the nw iran. this skarn deposit is located 5 km. north of mazraeh village and 20 km north of ahar town. the origin and development of the skarn can be related ...

This study analyses the joint system of Middle Miocene Osumi granodiorite batholith in southern Kyushu, Southwest Japan. The analysis included 916 joints at 96 localities covering northern, middle, and domains exposed area batholith. Two major sets steep striking NNW ENE a minor set gentle are recognized northern middle domains. further NS EW with domain. Previous paleomagnetic studies indicate...

A sequence of sixteen photomicrographs of thin sections of unaltered quartz diorite through a zone of deformation to myrmekite-bearing granite near Temecula, California, shows the textural and mineralogical changes that occurred in a quartz diorite as (1) K-metasomatism altered the primary plagioclase crystals to form microcline, myrmekite, quartz-bleb clusters, and recrystallized sodic plagioc...

Abstract Porphyry copper deposits, the principal source of and molybdenum, form at convergent margins. Copper is precipitated from fluids associated with cooling magmas that have formed in mantle evolved mid- to lower crustal levels, before rising toward surface where they saturate exsolve an aqueous fluid copper. Despite advances understanding their formation, there are still underexplored asp...

The Solund–Hyllestad–Lavik area affords an excellent opportunity to understand the ultrahigh-pressure Scandian orogeny because it contains a near-complete record of ophiolite emplacement, high-pressure metamorphism and large-scale extension. In this area, the Upper Allochthon was intruded by the c. 434 Ma Sogneskollen granodiorite and thrust eastward over the Middle ⁄ Lower Allochthon, probably...

Studies of three selected sulfide-silicate assemblages from ore samples from the Sar Cheshmeh porphyry copper deposit led to some ore genetic conclusions. The presence of chalcopyrite blebs in the groundmass orthoclase and quartz from the stock suggests liquid immiscibility in a cooling late-magmatic melt. This is in favor of the orthomagmatic model proposed for porphyry copper deposits. Th...