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...

We present a novel approach to use zircon as correlation tool well monitor for magma reservoir processes in silicic volcanic systems. Fingerprinting eruption products based on trace element content and U-Pb dates of offers promising, previously underestimated tephra perspective, particularly cases where the main minerals glass are altered. Using LA-ICP-MS analyses, rapid cost-effective method, ...

The Chaco Pampean Plain of central Argentina constitutes one of the largest regions of high arsenic (As) groundwaters known, covering around 1 x 10(6) km2 (Smedley & Kinniburg, 2002; Farías et al. 2004). The high-As groundwaters are from Quaternary deposits of loess (mainly silt) with intermixed rhyolitic or dacitic volcanic ash (Nicolli et al. 1989, Smedley et al. 1998,2002). Early in the last...

The rates of passive degassing from volcanoes are investigated by modelling the convective overturn of dense degassed and less dense gas-rich magmas in a vertical conduit linking a shallow degassing zone with a deep magma chamber. Laboratory experiments are used to constrain our theoretical model of the overturn rate and to elaborate on the model of this process presented by Kazahaya et al. (19...

Major and trace element composition of silicate melt inclusions (SMI) their rock-forming minerals were studied in mafic garnet granulite xenoliths from the Bakony–Balaton Highland Volcanic Field (Western-Hungary). Primary SMIs occur clinopyroxene plagioclase plagioclase-rich domains granulites ilmenite vicinity these wall rock. Based on major elements, we demonstrated that have no connection wi...

Abstract. Clinopyroxene-only thermobarometry is one of the most practical tools to reconstruct crystallization pressures and temperatures clinopyroxenes. Because it does not require any information coexisting silicate melt or other co-crystallized mineral phases, has been widely used elucidate physiochemical conditions crystallizing magmas. However, previously calibrated clinopyroxene-only ther...

The Cauca metallogenic belt is an inter-Andean area located along the Cauca-Romeral fault zone, which made up of a group twelve Miocene magmatic-hydrothermal Au-Ag-Cu mineral deposits positioned between Western and Central Cordillera Colombia. In addition to being widely developed region in exploration exploitation with known Au endowments over 1,700 tons, this represents exceptional metallogen...