نتایج جستجو برای: chlorite mineral
تعداد نتایج: 67598 فیلتر نتایج به سال:
Hyperspectral reflectance has the potential to provide rapid and low-cost mineralogical chemical information that can be used vector in mineral systems. However, spectral signature of white mica chlorite, despite numerous studies, is not fully understood. In this study, we review mineralogy chemistry different chlorite types investigate what changes are responsible for apparent shifts shortwave...
Horseradish peroxidase and chlorite, NaC102, are able to catalyze chlorination of monochlorodimedone to form dichlorodimedone. Catalytic amounts of horseradish peroxidase act to disproportionate chlorite forming chlorine dioxide and chloride ion. The chlorine dioxide thus formed is responsible for the chlorination of monochlorodimedone. It was previously thought (Chiang, R., Rand-Meir, T., Maki...
A compilation of Fe-bearing chlorite analyses is used: (1) to investigate the Alfree di-trioctahedral (AFDT) substitution 2Fe +□ = 3(Mg,Fe) in chlorite; and (2) to estimate the composition of a ferri-sudoite end-member (Si3Al)[(Fe ,Mg)2Fe 3+ 2 □Al]O10(OH)8 within the chlorite solid-solution domain. According to our observations, up to two Fe cations might be allocated in the M2-M3 chlorite site...
The aim of this study is to show the artificial neural network (ANN) on classification of mineral based on color values of pixels. Twenty two images were taken from the thin sections using a digital camera mounted on the microscope and transmitted to a computer. Images, under both plane-polarized and cross-polarized light, contain maximum intensity. To select training and test data, 5-fold-cros...
ABSTRACT Chlorite is recognized as a key mineral for preserving reservoir quality in deeply buried sandstones, chlorite coatings inhibit the nucleation of quartz overgrowths. A limited understanding mechanisms and conditions under which these authigenic form prevents accurate forward modeling diagenesis limits models critical to wide range geoscience applications. We present experimental data t...
late neoproterozoic-early cambrian schists have been occurred in southwest of zanjan city from the soltanieh belt. the soltanieh belt in northwest of iran is uplifted basement of precambrian-paleozoic in main central iran zone and includes outcrops of precambrian, paleozoic and mesozoic formations. late neoproterozoic-early cambrian schists, the oldest stratigraphy unit in the region, consist o...
Chlorite dismutases are prokaryotic heme b oxidoreductases that convert chlorite to chloride and dioxygen. It has been postulated that during turnover hypochlorite is formed transiently, which might be responsible for the observed irreversible inactivation of these iron proteins. The only charged distal residue in the heme cavity is a conserved and mobile arginine, but its role in catalysis and...
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