نتایج جستجو برای: microdiorite

تعداد نتایج: 11  

Journal: :New Zealand Journal of Geology and Geophysics 1989

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ژورنال: یافته های نوین در زمین شناسی 2019
Asiabanha, Abbas, Nemati, Batool, Nozaem, Reza,

Lat-Blukan district situated on N-Qazvin and western Alborz zone contains various extrusive and intrusive bodies with Eocene age. They are divided into three main facies that are volcaniclastic deposits (including tuff, lapilli tuff, agglomerate, tuffaceous sandstone and shale and also the carbonate intercalations), the trachyandesitic lava flows and subvolcanic bodies (including dioritic bodie...

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Journal: :Minerals 2022

The Sungun Cu-Mo porphyry deposit forms part of the Ahar–Arasbaran Magmatic Belt (AAMB). Its host Miocene stock is quartz monzonitic in composition and cut by intermediate dykes that post-date mineralization. These contain pyroxene enclaves ambiguous origin. Dykes microdiorite are observed within diorite dykes, whereas later three different kinds (diorite, hornfels) sizes between 1 10 cm. Encla...

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ژورنال: بلورشناسی و کانی شناسی ایران 2008
تقی پور, صدیقه, مکی زاده, محمد علی, ترابی, قدرت , تقی‌پور, بتول , خلیلی, محمود, نقره‌ئیان, موسی ,

Several igneous-evaporitic rocks complexes, belonging to Lower Cambrian, are exposed in High Zagros. These rocks exposed parallel to the Zagros main thrust as diapir-shaped bodies. Basaltic rocks are the most common rocks but microgabbro, microdiorite, andesite and trachyte are the rocks of this complex. The studied clinopyroxenes are usually fresh mafic mineral in these rocks and display secto...

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Journal: :Ore Geology Reviews 2021

The Jbel Haïmer copper-sulphide mineralisation occurs at 20 km north of Marrakesh in the Variscan Jebilet massif, Morocco. Most ores (up to 3.9 wt% Cu, ?38 ppm Ag, and up 2.9 Au) occur as impregnations NE-SW fault/fracture zones related tectonic breccia. Two independent stages fluid circulation mineral deposition are distinguished. First, Late high temperature-low pressure metamorphism synchron...

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ژورنال: بلورشناسی و کانی شناسی ایران 2017
رضایی کهخایی, مهدی , رهبر, رضا , قاسمی, حبیب ا.. ,

The Lakhshak intrusive assemblage consisting of a granodiorite pluton and monzodiorite and dacite dykes are  parts of Zahedan-Saravan granitoid belt which cover about 90.5 km2.. Dykes are parallel with NE-SW trends and comprise about 20-30 percent of the pluton.  The granodiorite plutonis granular in texture and comprises mainly consists of plagioclase, K-feldspar, quartz, green hornblende, and...

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ژورنال: بلورشناسی و کانی شناسی ایران 2017
رضائی کهخائی, مهدی, علی موسی, زهرا, قاسمی, حبیب ا...,

The Lakhshak pluton, a part of Zahedan-Saravan granitoid belt, is located about 15 km NW of the Zahedan city. The plutonic rocks are granodiorite in composition and are cut by a numerous of microdiorite and dacite dykes. The rocks of Lakhshak pluton consist of plagioclase (oligoclase-andesine), K-feldspar, quartz, biotite, amphibole (pargasite - edenite), sphene, apatite and opaque minerals. In...

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Journal: :زمین شناسی اقتصادی 0
زهرا اعلمی نیا محمد حسن کریم پور محمد رضا حیدریان شهری

the area is located 20 km northwest of kashmar and about 4 km of kalateh taimour in khorasan razavi province. the study area is part of tertiary volcanic-plutonic belt north of daruneh fault and its situation in tectonic inliers between two important active faults, doruneh and taknar. volcanic rocks are mainly intermediate to acid pyroclastic type. they formed during early tertiary. the volcani...

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پایان نامه :سایر - دانشکده علوم پایه 1389
علی رستمی, بهزاد حاج علیلو, غلام حسن گل محمدی, محسن موید,

روستای قطور در 34 کیلومتری شمال غرب شهرستان شاهین دژ، در استان آذربایجان غربی واقع شده است. این منطقه در تقسیم بندی ساختاری ایران در زون ایران مرکزی قرار دارد. توده نفوذی منطقه از نوع دیوریت تا کوارتزدیوریت و سنگ های نیمه عمیق شامل دیاباز و میکرودیوریت است. این سنگ ها بافت دانه ای داشته و کانی های اصلی آن شامل پلاژیوکلاز، آلکالی فلدسپار، آمفیبول، پیروکسین، بیوتیت، کلریت و اپیدوت و کانی فرعی آن ...

15 صفحه اول

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Journal: Journal of Sciences Islamic Republic of Iran 2007

Qara Aqaj titanium potential is one of the two major known titanium resources in Iran. The main host rocks of the ore body are ultramafics including wehrlite and lherzolite with minor clinopyroxenite. Qara Aqaj intrusion is composed mainly of ultramafic-mafic rocks, layered gabbro, diorite, microdiorite and some monzonite and alkali syenite. This intrusion has intruded the basement complex (amp...

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