نتایج جستجو برای: k2o and cao
تعداد نتایج: 16830800 فیلتر نتایج به سال:
the halak abad prospect occurs in the northeastern part of central iran zone (sabzevar structural zone). in this investigation, geochemical evolution, age and source of part of northeastern iran magmatic arc (intrusive bodies) in halak abad area in the khorasan razavi province has been studied. the exposed rocks consist of volcanic rocks with andesite and dacite nature, limestone, plutonic rock...
Lithium is one of the secondary mineral elements occurring in bauxite. The behavior lithium-bearing bauxite digestion process was investigated, and effect conditions on extraction rates lithium studied. results demonstrate that mass ratio added CaO to bauxite, KOH concentration, temperature had a significant efficiency. An L9(34) orthogonal experiment demonstrated order each factor for from pri...
extensive application of silica nanoparticles (snps) in various industrial products has led to the development of silica extraction methodologies out of various waste products. rice husk is an agricultural waste with a high content of amorphous silica. however, the presence of metal ion impurities and unburned carbon in the rice husk content may present an adverse effect on product color and pu...
Kahang porphyry copper deposit is located in Isfahan Province, in the middle of Urmia-Dokhtar Magmatic Belt. Based on field investigations and petrography of thin sections and core samples, igneous rocks in eastern part of the deposit are divided into three types of host-rocks, source and mineralizing rocks, and post-mineralizing barren dikes. Quartzdiorite has formed more than 70 percent of th...
Kashmar subvolcanic and plutonic bodies have compositional ranges from quartz gabbro to alkali granite. With exception of several small stock with alkaline Tholeiitic basalts characteristic (minimum amounts of SiO2 and CaO; maximum amount of MgO; high amounts of Na2O and K2O and LOI and high meta-luminous to peraluminous (1.33-2.32)), all rocks have high-k calc-alkaline to shoshonitic, meta-lu...
Razak and Mishan Formations (Early to Middle Mioceneage) in Polkavar and Zanjiran areas located in south and southwest of Fars Province in the Zagros foldbelt. Major minerals are illite/muscovite, chlorite, calcite, quartz and minor minerals are albite, and palygorskite. Analyses of whole rock chemistry show high amounts of CaO, MgO and low SiO2, Al2O3, Fe2O3, K2O, Na2O contents compared to NAS...
باتولیت بزمان در جنوب شرق ایران و در حاشیۀ جنوبی بلوک لوت قرار دارد. این مجموعه نفوذی با طیف سنگ شناسی آلکالی گرانیت، گرانیتوئید حدواسط (کوارتزمونزونیت-کوارتزمونزودیوریت-گرانودیوریت) و گابرو همراه با دایک های لوکوکرات (آپلیتی) در درون سنگ های رسوبی پالئوزوئیک بالایی نفوذ کرده و سبب ایجاد هالۀ دگرگونی در سنگ های پیرامون شده است. نسبت a/nk>1 و 1> a/cnkنشان دهندۀ ماهیت متاآلومینوس گرانیتوئیدهاست. ...
Igneous rocks of the Karaj Dam basement are mainly composed of gabbro, diorite and monzodiorite-monzonite which are locally penetrated by the quartz-monzonitic dikes. The upper and lower margins of the pluton, which has gabbroic composition, show porphyritic texture (chilled margin). The porphyritic texture in chilled margin gradually changes to the equigranular gabbro, diorite and monzod...
In this study, the contents of thirty-five elements (nine major-minor oxides, twenty-one heavy metals, and five other elements) in eighty-four muscovite samples collected from three commercially operated quarries Manisa province Turkey were determined using an energy dispersive X-ray fluorescence (EDXRF) spectrometer. The mean concentrations SiO2, Al2O3, K2O, MgO, Na2O, Fe2O3, P2O5, TiO2 CaO an...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید