نتایج جستجو برای: feldspars
تعداد نتایج: 494 فیلتر نتایج به سال:
The use of white cements as a building material is widely employed due to its high whiteness and reflectance. However, materials should adopt better thermal insulation characteristics contribute for significant urban heat-islands mitigation. In this work, synthetic feldspar has been evaluated partial total replacement sand in cement mortars. Thermal, mechanical, optical properties these new mor...
Mineral dusts originating from Earth's crust are known to be important atmospheric ice nuclei. In agreement with earlier studies, feldspar was found as the most active of the tested natural mineral dusts. Here we investigated in closer detail the reasons for its activity and the difference in the activity of the different feldspars. Conclusions are drawn from scanning electron microscopy, X-ray...
feldspar grains, as a significant provenance indicator, of two terrigenous formations from central iran, the upper red formation, and moghan area, zivah formation, are used for provenance determination and the study of transportation and depositional history. the upper red formation (urf) is volumetrically the most important siliciclastic unit of the central iran and zivah formation (zf) repres...
Kinetic models have been used extensively for modeling and numerical simulation of luminescence phenomena dating techniques various dosimetric materials. Several comprehensive implemented quartz, which allow complex sequences irradiation thermal/optical events in nature the laboratory. In this paper, we present a simple accurate way simulating similarly feldspars. We introduce open-access R scr...
Geochemical Aspects of Na-Metasomatism in Sargaz Granitic Intrusion (South of Kerman Province, Iran)
The Sargaz granitic intrusion has been emplaced in Sargaz ophiolitic suite, south-east of Sanandaj-Sirjan metamorphic zone, south of Kerman province. The central part of the intrusive body contains pinkish coarse-grained granite, but the fractured northern part, neighboring Chah-Mazraeh fault, has been subjected to pervasive Na-metasomatism and related subsolidus reactions. In the northern alte...
nezam-abad area is located in southwest of shazand (arak) which is a part of sanandaj-sirjan zone. major intrusive rocks of nezam-abad are quartz diorite and minor amount of granodiorite. leucogranitic, pegmatite dykes and quartz-tourmaline veins were intruded the quartz diorite. quartz diorites are mainly composed of plagioclase, hornblende, biotite, quartz and pyroxene as major minerals. majo...
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