نتایج جستجو برای: mineralogical composition
تعداد نتایج: 263021 فیلتر نتایج به سال:
This study compared the granulometric properties, mineralogical composition and concentrations of major and trace element oxides of commonly ingested soils (geophagic soil) collected from different countries with a view of understanding how varied they may be in these properties and to understand the possible health implications of ingesting them. Soil samples were collected from three differen...
Recently Gonabad, south of Khorasan Razavi Province, in eastern Iran is affected by dust storm phenomena. To determine the physical and chemical characteristics of dust particles and their role in environmental pollution, 9 samples were collected for XRF, XRD, SEM and EDX micro analysis. XRD analysis showed that most of mineralogical composition comprise tectosilicates (quartz and alkali feld...
The search for biomarkers of present or past life is one of the major challenges for in situ planetary exploration. Multiple constraints limit the performance and sensitivity of remote in situ instrumentation. In addition, the structure, chemical, and mineralogical composition of the sample may complicate the analysis and interpretation of the results. The aim of this work is to highlight the m...
The article presents information about the results of studying material composition, mineralogy and geochemistry deposits formed in Upper Cretaceous (K2) Santon strata North Konimekh uranium deposit located Kyzylkum region. Prospecting, appraisal exploration at mine is an urgent problem, as it focus attention many researchers. This provides extensive on underground alkalization, one methods for...
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