عنوان

سنگ شناسی و ژئوشیمی آمفیبولیت های منطقه نقده، شمال غرب ایران

‭۱۰۶۶۱پ‬

per

سنگ شناسی و ژئوشیمی آمفیبولیت های منطقه نقده، شمال غرب ایران

/رضا حیدری

: دانشکده علوم طبیعی

‮‭۸۷‬ص‬

زبان چکیده: استاد راهنما

زبان چکیده: استاد مشاور

چاپی

کارشناسی ارشد

در رشته زمین شناسی (گرایش پترولوژی)

‮‭۱۳۹۱/۱۱/۲۱‬

تبریز

حاجی علی اوغلی، رباب

موذن، محسن

serpentinite, spilites, basalt, schist and sedimentary rocks of deep sea environment such as radiolaritic chert and sedimentary pelagic limestone.Petrologically, the studied rocks are amphibolites. Amphibolites are almost green, but because of different modal percentage of plagioclas and amphibole, they show different colors such as light and dark green. The amphibolites are ocassionally are epidotized and folded. They are intruded by silisic veins. Limestones are often light in color and can be seen as cliff forming rocks. Chemical studies shows that the protolith of most of the studied amphibolites is basalts, while a few of them have andesite- basalt and andesite protoliths. The rocks belong to tholeiitic magmatic type. Study of the petrological features show E- MORB nature for the parental magma. The original magma was fromed in thin oceanic crust and contamination by oceanic crust was the subsidiary cause affecting and anomaly of elements, specially LILEs. Subduction and also because of the peridotitic nature of mantle, the original nature of he mantle-derived magma, which was probably rich in incompatible elements and low partial melting rate, all wre factors controlling the chemistry of the studied rocks.

gnittes egdir cinaeco-dim a ni detareneg saw setilobihpma eht fo shtilotorp eht gnicudorp amgam eht ,ylekil erom ,smargaid noitanimircsid cinotcet fo eht dna yrtsimehcoeg etilobihpma eht no desaB

حیدری، رضا

خ‍‮‭named " Chom Jaldian" at the longitudes of ۴۵۰۰ and ۴۵۰۹۲۸? east and latitudes of۳۶۵۴۵۴? and ۳۶۴۴۳۴? Norhm there is a metamorphic complex consisted of amphibolite and lesser amounts of green schist. Carbonate rocks of Permian are trusted over this complex.This area is known as a part of Sanandaj-Sirjan zone. Amphibolits are probably the basic lavas of the ophiolitic part, metamorphosed to amphibolites, or they may have originated from diabases. There are various types of plutonic, sedimentary and metamorphic rocks in the area including ultrabasic rocks‬ خ‍‮‭At the west of the "Jaldian" and at an area‬

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