نتایج جستجو برای: natrolite
تعداد نتایج: 60 فیلتر نتایج به سال:
amygdaloidal, cavity- and fracture-filling zeolites in eocene volcanic rocks from the kuh-e-aradeh of southern kahrizak, in the northernmost part of central iran have been studied in some detail by optical, chemical analysis, sem, and xrd techniques. the zeolites identified, in order of their relative time of formation from early to late, are tetranatrolite, analcime, natrolite, mesolite, stilb...
Zeolites are present in numerous outcrops of volcanites different ages Sicily (Italy). Some these important because they constitute the ideal genesis conditions some minerals, which represent geological indicators chemical and geothermal gradients involved during their formation. For this purpose, a group zeolites coming from areas Ionian coast Palagonia village (Eastern Sicily) was investigate...
The purpose of this study is to improve the cementing quality of shale gas well by mud cake solidification, as well as to provide the better annular isolation for its hydraulic fracturing development. Based on the self-established experimental method and API RP 10, the effects of mud cake solidifiers on the shear strength at cement-interlayer interface (SSCFI) were evaluated. After curing for 3...
Thomsonite along with other zeolite minerals such as natrolite, mesolite, analcime and rarely stellerite in cavities and veins of mafic alkaline lavas in Hormak area, north of Zahedan, eastern Iran, is formed in there distinct habits of blocky, bladed, and waxy-growth. Chemical composition of Hormak thamsonite is reasonably comparable with those of other reported thomsonites. Si/Al ratio of the...
Analcime along with other zeolite group minerals such as: Tetranatrolite, Natrolite, Mesolite, Scolcite, Heulandite, Stilbites and, levyne occur as vein and cavity filling minerals in the intermediate to basic volcanic rocks in South Kahrizak. Scanning Electron Microscopy (SEM) of microcrystaline analcime reveal pseudo-cubic prismatic faces of [211] containing laminations perpendicular to the e...
Amygdaloidal, cavity- and fracture-filling zeolites in Eocene volcanic rocks from the Kuh-e-Aradeh of southern Kahrizak, in the northernmost part of Central Iran have been studied in some detail by optical, chemical analysis, SEM, and XRD techniques. The zeolites identified, in order of their relative time of formation from early to late, are tetranatrolite, analcime, natrolite, mesolite, stilb...
No. Barn0393 Pressure-Induced Cation Migration and Volume Expansion in Defect Pyrochlore Oxides P. W. Barnes (Ohio State Univ., Chemistry), P. M. Woodward (Ohio State Univ., Chemistry), Y. Lee (BNL, Physics), T. Vogt (BNL, Physics), J. A. Hriljac (Univ. Birmingham, Chemical Sciences) Beamline(s): X7A Introduction: Microporous materials, such as zeolites [1,2], undergo pressure-induced volume ex...
The study reports petrography, mineralogy and carbonate geochemistry stable isotopy of various types ocelli (silicate-carbonate globules) observed in the lamprophyres from Chadobets Uplift, southwestern Siberian craton. are related to REE-bearing Chuktukon carbonatites. On basis their morphology, relation with surrounding groundmass, we distinguish three ocelli: carbonate-silicate, containing c...
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