نتایج جستجو برای: quartz diorite
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Abstract Filo del Sol is a composite porphyry-epithermal deposit, straddling the frontier between Argentina and Chile at latitude 28°29′ S, that has attracted great deal of recent attention because several drill intersections in excess 1 km long with unusually high Cu, Au, Ag grades. The deposit part 8.5-km-long, N- to NE-trending alignment porphyry high-sulfidation epithermal centers, which, t...
Shanmen silver deposit is located on the south section of Daheishan horst polymetallic mineralization belts in central Jilin province, Northeast China. The supplies not only greatest portion and a significant amount gold also. exhibits closely spatiotemporal relationship with Mesozoic ore-hosting diorite granite intrusions basic-felsic dikes. Among dikes felsite one occurred at same fault zone ...
Oligo-Miocene Bagh-e-Khoshk granitoid stock is intruded into the Eocene volcanic rocks in the southeastern part of the Urumieh-Dukhtar Magmatic assemblage in Iran. The granitoids are mainly consisting of diorite, quartz diorite and granodioritic rock types. They are metaluminous to slightly peraluminous, medium to high K calc-alkaline, with SiO2 ranging from 50.2 to 66 wt.%. The majo...
The Shaku–dake body represents a two–pyroxene diorite (TPD) located in the Northern Kyushu region southwest Japan and is member of Cretaceous batholith. Layered structures feeder dikes wall TPD are recognized as magma plumbing systems that result from pulses. pulses were likely provided localized anomalous spots, which have been horizontal variations modal, major, trace element compositions bod...
Around 560 000 workers in Great Britain are potentially exposed to respirable crystalline silica (RCS), which can cause disabling diseases, such as silicosis and lung cancer. These experiments assessed the performance of a new Raman spectroscopy method for measuring RCS, samples pure quartz powder with different median aerodynamic particle diameters stone dusts from variety natural artificial s...
The Bou Azzer district in Morocco has a long mining history since the beginning of XXst century during which it become only world producer Co from primary, hydrothermal arsenide ores. Orebodies are structurally controlled, and mainly distributed along fault contacts between Cryogenian ophiolite-related serpentinite bodies intrusive quartz diorite or, locally, ophiolitic gabbros or Ediacaran vol...
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