نتایج جستجو برای: sanandaj sirjan zone
تعداد نتایج: 111868 فیلتر نتایج به سال:
Fluid migration and/or differentiation of magmas in arc settings are important drivers stable-isotope fractionation elements like molybdenum and titanium, respectively. For both isotope systems, evolved heavier than average arc-basalts, which requires an isotopically light reservoir counterbalancing the heavy felsic lithologies. In attempt to better define this reservoir, we investigate Mo Ti i...
The Golgohar iron mine is located about 55 km southwest of Sirjan in the Sanandaj-Sirjan structural zone. We distinguished five mineralization zones, on the bases of mineral assemblage with magnetite. The gangue minerals are pyrite, pyrrhotite, chalcopyrite, siderite, apatite, serpentine, talc, chlorite, amphibole, calcite, dolomite and quartz. All chlorites are tri-octahedral in nature. The ch...
the aligoodarz granitoid occurs in sanandaj-sirjan zone (ssz), western iran. tonalite, granodiorite and granite are the main rock types cropping out in the area. comparison of aligoodarz granitoid with dehno and boroujerd granitoids reveals several similarities in their chemical characteristics. thus, the above mentioned granitoids can be assigned as a co-genetic magmatic suite, in which pluton...
Ghazan-Khanik complex is a small mafic-ultramafic intrusive body with Permian age at the extremity of NW of the Sanandaj-Sirjan zone, has intruded into the Precambrian metamorphic rocks. Field studies, geochemistry mineral compositions and assemblages of them demonstrate this complex has four lithological zones. The lower zone of non-layered gabbro is the fine-grain gabbronoritic component and ...
Ophiolitic rocks in the southeastern part of the Zagros Orogenic Belt can be separated from southwest to northeast, into two groups: the Neyriz ophiolites and the Naien–Shahrebabak–Baft ophiolites. The southeast sector of Sanandaj-Sirjan wasdelimited by the two nearly synchronous ophiolitic belts in its southwestern and northeastern margins. In this study, new ophiolitic formation models were u...
کمپلکس دگرگونی خواجو در جنوب شرق زون سنندج-سیرجان و کمپلکس دگرگونی سورسات در شمال غرب زون سنندج-سیرجان برونزد دارند. در این کمپلکسها کانی آمفیبول در سنگهای دگرگونی مانند گارنت آمفیبولیتها و آمفیبول شیستها حضور دارد. انواع فابریک آمفیبولها در این سنگها شامل نماتوبلاستی، برشی، کاتاکلاستی، رشد تجمعی و پاپیونی با طویل شدگی در امتداد محور c میباشند. حالتهای تجمعی و پاپیونی کانی آمفیبول، در ا...
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