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Shekari, Sadeghian, Habibollah, Minggou. Mineral chemistry, petrogenesis of metapelitic rocks of metamorphic - igneous Shotor-Kuh complex (SE Shahrood). www.ijcm.ir 2018; 26 (1) :179-194
URL: http://ijcm.ir/article-1-1059-fa.html
شکاری سکینه، صادقیان محمود، قاسمی حبیب الله، مینگو جای. شیمی کانی و سنگ‌زایی متاپلیت‌های مجموعه دگرگونی - آذرین شترکوه (جنوب‌شرق شاهرود) . مجله بلورشناسی و کانی شناسی ایران. 1397; 26 (1) :179-194

URL: http://ijcm.ir/article-1-1059-fa.html


1- دانشگاه صنعتی شاهرود
2- دانشگاه نورث‌وست (شمال‌غرب) چین
چکیده:   (4182 مشاهده)
مجموعه دگرگونی – آذرین شترکوه به سن پروتروزوئیک­پایانی (548 تا 579 میلیون­سال پیش) واقع در جنوب­شرق شاهرود، طیف متنوعی از پنج گروه ترکیبی متابازیت، متاپلیت، متاگری­وک، متاپسامیت و متاکربنات را شامل می­شود. متاپلیت­های این مجموعه طیف سنگی متنوعی از فیلیت تا گنیس و میگماتیت را شامل می­شوند. شدت دگرگونی در بالاترین درجه، تا مرز ذوب­بخشی و تشکیل گدازه­های گرانیتی پیش­رفته است. نتایج دما - فشارسنجی بر شبه­پهنه­ها دمای (457 تا 641 درجه سانتیگراد و فشار 6 تا 13 کیلوبار) با شرایط دما - فشار رخساره­های شیست­سبز تا آمفیبولیت همخوانی دارد. یافته­های­جدید نشان می­دهد که دنباله­های رسوبی اولیه (سنگ­های ­مادر مجموعه دگرگونی شترکوه) طی یک نظام کششی – کافتی درون قاره­ای و در حوضه­های دریایی - اقیانوسی تشکیل شده­اند. این حوضه­ها، طی رخداد کوهزایی کادومین بسته­شده، سنگ­های آنها دگرگون­شده­ و سپس به صورت آمیزه­های زمین­ساختی یا منشورهای به­هم افزوده، بر پوسته­های قاره­ای سرزمین­های مجاور خود رانده شده­اند.     
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نوع مقاله: پژوهشي | موضوع مقاله: تخصصي

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