The Effects of Composition on Retentivity of Argon and Oxygen in Hornblende and Related Amphiboles: A Field-Tested Empirical Model
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منابع مشابه
کانیشناسی و شیمیکانی دایکهای کوارتزدیوریتی کانسار مولیبدن- مس پورفیری سونگون (شمالغرب ایران)
The study area is located in NW of Iran, East-Azarbaidjan Province in north Varzeghan. Plagioclase, amphibole and biotite are the major minerals and sphene, apatite, and quartz are accessory minerals. The texture of these dykes are porphyrytic with fine to medium matrix. Mineral chemistry analysis revealed that the composition of Plagioclase varies from andesine to oligoclase and the biotite va...
متن کاملاستفاده از شیمی کانی آمفیبول در بررسی ویژگیهای ماگمایی و سازنده و زمین دما- فشارسنجی تودههای گرانیتوئیدی شمال غرب ساوه، ایران مرکزی
The chemical composition of amphiboles from granitoid rocks of Selijerd and Neshveh plutons in NW Saveh, Central Iran, are studied for petrogenetic purpuses, tectonomagmatic features and geotermobarometery of these plutons. The chemical composition of these amphiboles falls in the calcic amphibole group and is actinolite to magnasio-hornblende. They are assosiated with the active continental ma...
متن کاملبررسی خاستگاه و زمین دما- فشارسنجی تودهی دیوریت گابرویی (جنوب قروه-کردستان)؛ با تکیه بر شیمی کانیها
Gabbrodioritic pluton is located in S-Qorveh in nourthern parts of the Sanandaj-Sirjan Zone. Petrographically, amphibole and plagioclase are main minerals in these rocks. Amphiboles are calcic-type, and their composition varied between ferro-hornblende to magnesio-hornblende. Anortite contents in plagioclases are between 81 to 39 (%) and these crystal are labradore -oligoclase in composition. A...
متن کاملMineral chemistry and physical conditions of crystallization in Filshour and Goft dioritic intrusions, Southwest of Sabzevar
The Late cretaceous dioritic intrusions of Filshour and Goft in southwest of Sabzevar are situated in the northern edge of central Iran zone. The rocks of these plutons show porphyry, granular, ophitic and subophitic textures and are composed of amphibole, plagioclase and clinopyroxene (in diorites), along with quartz (in quartz diorites). The amphiboles of these rocks are in the group of calci...
متن کاملاستفاده از شیمی کانی آمفیبول برای دما- فشارسنجی گرانیتوئید بزمان، جنوب شرق ایران
The Bazman granitoid is located in the south margin of Lut block, and southeastern of Iran. It composed of granite, granodiorite, monzodiorite, quartz monzodiorite, diorite and gabbro. Plagioclase, feldspar, quartz, hornblende and biotite are the major minerals; sphen, apatite, zircon, magnetite and ilmenite are the main accessory minerals. Amphibole mineral chemistry is calcic in composition a...
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تاریخ انتشار 2016