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Home » Articles

Articles

Hydrothermal brecciate of Volcanics at Zarghan area(Sabzevar region/NE of Iran) specified to Mineralization

Writers : Ebrahimi, Khosro; Feiz, Mostafa
Refference : The 15th Symposium of Crysallography and Mineralogy of Iran
Publishing Year : 1387

Abstract :

The investigated area (Zarghan and Kuh-e-Dook) was limited to the longitude of 57/15 E to 57/30 E and the latitude of 36/30 N to 36/45 N. Eocene volcanism in this area is Caic Alkaline, which is penetrate to upper cretaceous Ophiolite Belts Volcanic rocks are mainly Andesites and Andesitc Basalts, which are brecciaed with hydrothermal processes such as magmatic fluids. Mineralization such as Malachite can be observed at the surface of the brecciate pipes.
The geochemistry studies by (XRF) of these volcanic rocks and TAS diagrams show that more Volcanics rocks are Andesites to Basalts. These Tertiary volcanoes are related to continental edges. The most important alterations at this investigated area consist of: Serpentinization, Choloritization, Epidotization, and Argilization.
According to these alterations, with specific minerals, such as Chlorite, Epidote, Calcite, and Clay Minerals, the alteration zone is Propilitic. Therefore, because of these brecciaed pipe and alteration zone implies the importance of scientific exploration in this region.


Subject List : Mineralization, Hydrothermal

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