نتایج جستجو برای: sirjan zone

تعداد نتایج: 111210  

Journal: :Carbonates and Evaporites 2019

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ژورنال: بلورشناسی و کانی شناسی ایران 2018
احمدی, علی, بومری, محمد, میرزایی راینی, رضوان, میرنژاد, حسن,

The Gol-Gohar metamorphic complex is located about 55 km southwest of the Sirjan and is part of east Sanandaj-Sirjan zone. The rocks units are metamorphosed in greenschist and upper amphibolite facies with age of Middle Jurassic which consists of metapelitic (mica-schists and gneisses), metabasitic and metacarbonatic rocks. Geochemical studies indicate that the precursor sediments of the metape...

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Journal: :journal of tethys 0

bouin- miandasht granitoid pluton (bmgp), which outcropped to the north of bouin-miandasht- aligoudarz road, was emplaced into low to medium grade of triassic to early jurassic metapelitic rocks of sanandaj-sirjan structural zone. in this study we do provide the first investigations of bmgp by means of anisotropy of magnetic susceptibility (ams). most km values for the main felsic compositions ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2021
Ghafouri, , Moein Zadeh, ,

The Gol-e-Gohar metamorphic complex is located in the southeast of Sanandaj-Sirjan Zone, in Sirjan city (Kerman Province). According to EPMA data of the tourmaline in the biotite-amphibolite of the studied area, these tourmalines are high Mg tourmalines and dravite ones and belong to the alkaline series. The positive correlation between Mg and Fe contents, high contents of Mg in the studied tou...

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ژورنال: یافته های نوین در زمین شناسی 2021
Bayat, Sima, Ghasemi Siani, Majid,

Boroujerd-Nezam Abad zone widespread along NW-SE trend in part of Sanandaj-Sirjan zone. Borujerd-Nezam zone consists of hornfels, schist, phyllite, migmatite, granite and granodiorite rock types. Metamorphic (hornfels and schist) and igneous (granitoids) rocks are known as host pegmatitic dykes. Quartz, feldspar, muscovite and tourmaline are the most common pegmatite, and mica are as muscovite ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2018
آلیانی, فرهاد, صبوری, زهرا, معانی‌جو, محمّد, میری, میرمحمّد,

The Kangareh gabbro body is located in south of the Kurdistan Povince and southwest of the Qorveh area. The area belongs to the Sanandaj-Sirjan zone. Tectonic evolutions during Mezozoic and magmatism, due to subduction of the Neo-Tethys oceanic lithosphere beneath the Iran microplate, led to formation of various igneous bodies in this area. Chemical analysis of pyroxene minerals and whole rock ...

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ژورنال: بلورشناسی و کانی شناسی ایران 2017
آلیانی, فرهاد, سپاهی, علی اصغر, معانی‌جو, محمد, میری, میرمحمد,

Garnet amphibolite is a member of the Hamedan regional metamorphic rocks (the Sanandaj-Sirjan zone). The present study is the first report of mineral compositions and P-T condition of the Hamedan region area garnet amphibolites. The garnet amphibolites can be divided into two varieties based on their mineral assemblages including epidote garnet amphibolite and biotite garnet amphibolite.  Elect...

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Journal: :journal of tethys 0

some small gabbro patches emplaced along the thrust fault with w-e trend in the vicinity of maien bolagh village at the ht/mp metapelites, a part of the central iran zone (near to sanandaj-sirjan zone). the coarse-grained dark gabbro samples consist of amphibole, clinopyroxene, plagioclase, minor quartz, titanite, and biotite. gabbros have high potassic calc-alkaline to shoshonitic affinity. th...

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Journal: Geopersia 2013
Amir Ali Tabbakh Shabani, Reza Zarei Sahamieh Zohre Keshavarz

Tourmaline can be found as an accessory mineral in a variety of rocks including leucogranite, pegmatite, quartz veins, and metamorphiccountry rocks in Hajiabad-Dehgah area in SE of Boroujerd city. Tourmaline in pegmatites is coarse-grained, subhedral to euhedral, anddisplays strong to moderate pleochroic blue rimmed by olive green. In contrast, tourmalines from leucogranite, quartz-veins, and h...

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Journal: :iranian journal of science and technology (sciences) 2004
m. moazzen

chloritoid is crystallised with chlorite, white mica and garnet in chlorite zone metapelites ofthe regional metamorphic rocks of the sanandaj-sirjan metamorphic belt in southern iran. chemistry ofcoexisting minerals is studied using microprobe analysis. application of the chlorite-chloritoidgeothermometry gives temperatures of 515°c and 557°c. the chlorite-garnet fe-mg exchangegeothermometer in...

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