سامانه مدیریت نشریات علمی دانشگاه دامغان

زعیم‌نیا, فاطمه, کنعانیان, علی, میرمحمدی, میرصالح, امامعلی پور, علی. (1397). مقایسه تراکم عناصر گروه پلاتین در کرومیتیت‌های افیولیت خوی: نشانه‌ای از حضور دو نوع کرومیتیت با دو خاستگاه متفاوت. مجله زمین شیمی ایران, 26(2), 273-286. doi: 10.29252/ijcm.26.2.273
فاطمه زعیم‌نیا; علی کنعانیان; میرصالح میرمحمدی; علی امامعلی پور. "مقایسه تراکم عناصر گروه پلاتین در کرومیتیت‌های افیولیت خوی: نشانه‌ای از حضور دو نوع کرومیتیت با دو خاستگاه متفاوت". مجله زمین شیمی ایران, 26, 2, 1397, 273-286. doi: 10.29252/ijcm.26.2.273
زعیم‌نیا, فاطمه, کنعانیان, علی, میرمحمدی, میرصالح, امامعلی پور, علی. (1397). 'مقایسه تراکم عناصر گروه پلاتین در کرومیتیت‌های افیولیت خوی: نشانه‌ای از حضور دو نوع کرومیتیت با دو خاستگاه متفاوت', مجله زمین شیمی ایران, 26(2), pp. 273-286. doi: 10.29252/ijcm.26.2.273
زعیم‌نیا, فاطمه, کنعانیان, علی, میرمحمدی, میرصالح, امامعلی پور, علی. مقایسه تراکم عناصر گروه پلاتین در کرومیتیت‌های افیولیت خوی: نشانه‌ای از حضور دو نوع کرومیتیت با دو خاستگاه متفاوت. مجله زمین شیمی ایران, 1397; 26(2): 273-286. doi: 10.29252/ijcm.26.2.273

مقایسه تراکم عناصر گروه پلاتین در کرومیتیت‌های افیولیت خوی: نشانه‌ای از حضور دو نوع کرومیتیت با دو خاستگاه متفاوت

مجله بلورشناسی و کانی شناسی ایران
مقاله 2، دوره 26، شماره 2 - شماره پیاپی 72، تیر 1397، صفحه 273-286    اصل مقاله (2.99 M)
نوع مقاله: مقاله پژوهشی
شناسه دیجیتال (DOI): 10.29252/ijcm.26.2.273
نویسندگان
فاطمه زعیم‌نیا1؛ علی کنعانیان* 1؛ میرصالح میرمحمدی1؛ علی امامعلی پور2
1دانشگاه تهران
2دانشگاه ارومیه
چکیده
مجموعه افیولیتی خوی در شمال غرب ایران دارای کانسارهای متعدد کرومیتی است که از نظر بافتی، زمین­شیمیایی و کانی‌های همراه متفاوت هستند. کرومیتیت‌های خوی بر اساس Cr# به دو گروه کلی کرومیتیت‌های غنی از Cr (Cr#>6/0) و غنی از Al (Cr# < 6/0) تقسیم می‌شوند. از نظر تراکم عناصر گروه پلاتین، کرومیتیت‌های غنی از Cr دارای مقادیر بیشتری از عناصر گروه پلاتین (PGE) و میانبار‌های بسیار کوچکی از کانی‌های گروه پلاتین (PGM) هستند. درحالیکه، کرومیتیت‌های غنی از Al تهی شده‌تر از PGE و فاقد PGM به صورت میانبار هستند. بررسی­های زمین­شیمیایی و طیف­­سنجی رامان بر میانبار‌های کانی‌های گروه پلاتین مشخص کرد که در کرومیتیت‌های غنی از Cr خوی لاوریت‌ و به مقدار کمتر ایرارسیت وجود دارد. تراکم PGE در کرومیتیت‌های غنی از Cr و غنی از Al نشان می‌دهد که گروه نخست به احتمال زیاد در محیط قوس و گروه دوم در حوضه‌های پشت قوس تشکیل شده­اند.    
کلیدواژه‌ها
عناصر گروه پلاتین؛ کرومیتیت؛ طیف‌سنجی رامان؛ افیولیت خوی؛ ایران
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