نتایج جستجو برای: diorite
تعداد نتایج: 363 فیلتر نتایج به سال:
Brambang is one of the porphyry copper-gold prospects/deposits situated along eastern Sunda arc. This study aimed to understand geological framework, alteration geochemistry and ore fluid characteristics prospect. Fieldworks various laboratory analyses were performed including petrography, microscopy, rock geochemistry, chlorite chemistry inclusion microthermometry. The prospect composed andesi...
The Osnytsky block is a constituent part of the Osnytsky-Mikashevytsky volcano-plutonic belt. leading place in geological structure occupied by rock association, which includes number plutonic formations from gabbro to leucocratic granites (gabbro-diorite-granodiorite-granite association), formed Paleoproterozoic — 1,98—1,95 Ga. results lead-lead isotope dating titanites diorites, opened RPZ-5 ...
The geology of the DRC has already been studied on regional plans, scale a province or territory. But these studies are too synthetic and they do not consider variations petrographic facies that can occur at locality village. Thus, to overcome this possibility, present study aims make characterization rocks Mabuku in territory Beni. To achieve this, we proceeded by microscopic analysis 10 field...
On the basis of field studies, mafic-intermediate bodies of Kashmar are subdivided into the old series (often stocks of gabbro, diorite, quartz diorite/monzodiorite) and the new series (quartz monzodiorite swarm dykes). In terms of crosscutting relationships, old series has the age between oldest volcanic units (57 Ma) and Eocene granitoids (40 Ma), but the swarm dykes are attributed to the pos...
The study area is located in the east of Ahar town in Eastern Azerbaijan Province and is part of the Ahar-Arasbaran Cenozoic magmatic belt of NW Iran. The geological units of the Eocene age are volcanic rocks with andesite, latite - andesite and basaltic andesite composition. Khankandi and Useflu Oligocene intrusive bodies intruded in the volcanic rocks and caused widespread alteration and copp...
Fadiheh copper-gold prospect area in northwest of Torbat-e Heydariyeh in Khorasan Razavi Province is located in the central part of the Khaf-Kashmar-Bardaskan magmatic belt. This area includes outcrops of Eocene volcanic-pyroclastic units with felsicـintermediate nature. The lavas are andesite and latite, and pyroclastic units include rhyodacitic tuff, andesitic lithic tuff and ignimbrite. Intr...
To describe the skid resistance attenuation of asphalt pavement during its life cycle, this paper selected a multi-variable accelerated abrasion machine to simulate process, and British Pendulum Number was evaluate after various abrasive cycles. During three factors influencing were considered, including aggregate types (diorite, limestone, granite, basalt), nominal maximum size (NMAS), gradati...
The Açdif gold deposit is located in the Zenaga Inlier (central Anti-Atlas), approximately 120 km southwest of city Ouarzazate. It hosts mineralization associated with a shear zone affecting metamorphic and magmatic formations Eburnean basement. mainly consists alternating micaschists, augen gneisses, orthogneiss. These crystalline rock assemblages are intruded by variety granitoids. Azguemerzi...
Pichagchi pluton is situated in the northeastern part of the Soursat complex in Sanandaj-Sirjan metamorphic belt of Iran. The pluton with the age of 74.20 Ma is composed mainly granodiorite, diorite, and tonalite in which mafic minerals are biotite and amphibole. In this study, composition of minerals used to describe the nature of the granitic magma and estimate the pressure and temperature at...
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