نتایج جستجو برای: monazite
تعداد نتایج: 598 فیلتر نتایج به سال:
We have dated the South Delhi orogeny, Aravalli-Delhi Mobile Belt (ADMB), NW India, using tectonic fabric, geochemistry, and zircon-monazite geochronology as proxies. The Terrane (SDT), a passive margin domain in ADMB, consists of multiply deformed (D 1 –D 4 ) greenschist facies rocks several granite plutons. D deformation is characterized by pervasive isoclinal recumbent F fold axial planar te...
Abstract The study area constitutes the Eastern flank of Nile Delta between longitudes, 31° 39’ 9.2″–32° 20’ 9.6″ E and latitudes 37′13″-31° 0′ 54″N, in shoreline Port-Said Damietta. radioelement contents were measured by gamma-spectrometry using NaI-detector studied mineralogically binuclear Environmental Scanning Electron microscopes after separation heavy minerals liquids. eU, eTh, RaeU K se...
Pre-operational survey at Kalpakkam coast, indicated elevated gamma background radiation levels in the range of 100-4000 nGy h(-1) over the large tracts of the coastal sands due to the presence of pockets of monazite mineral in beach sands. In view of the prevalence of monazite, a systematic gamma spectrometric study of distribution of natural radionuclides in soil and beach sand samples collec...
We present a comprehensive petrological and geochronological study of single granulite sample from the lithosphere-scale Beraketa shear zone in southern Madagascar to constrain orogenic history Gondwana assembly this region. The studied provides panoply data constraining prograde, retrograde, late metasomatic region via application Ti-in-quartz, Ti-in-zircon, Zr-in-rutile, Al-in-orthopyroxene t...
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