پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 46 |
| تعداد شماره‌ها | 1,228 |
| تعداد مقالات | 10,550 |
| تعداد مشاهده مقاله | 21,089,538 |
| تعداد دریافت فایل اصل مقاله | 14,252,663 |
Geochemistry and tectonic setting of Maien Bolagh (Takab) alkali gabbros-NW Iran | ||
| Quarterly Journal of Tethys | ||
| شناسنامه علمی شماره، دوره 1، شماره 4، اسفند 2013، صفحه 303-314 اصل مقاله (803.7 K) | ||
| چکیده | ||
| 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. The highly incompatible elements concentrations (e.g. Nb and La) and Zr/Y and Zr/Nb ratios are similar to within plate gabbros. At the assorted discrimination diagrams the gabbros exhibit mostly non-orogenic resemblance. The geochemical characteristics show that the gabrros can be interpreted as melts formed from an enriched mantle in a passive rift position, during an extensional or transtensional tectonic | ||
| کلیدواژه‌ها | ||
| Gabbro؛ Maien Bolagh؛ Within Plate؛ Geochmistry | ||
|
آمار تعداد مشاهده مقاله: 1,137 تعداد دریافت فایل اصل مقاله: 763 |
||