Results 31 to 40 of about 22,327 (143)
Application of XRF Scanning to Different Geological Archives
Earth and Space Science, 2021 High‐resolution XRF scanning is widely used on marine and lake sediment cores as a means of rapidly acquiring elemental concentrations from closely spaced intervals with no damage to the samples. Therefore, guidance on how to obtain reliable datasets and
Fei Guo +8 more
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Литосфера, 2019 На основании минеральных Rb-Sr изохрон, характеризующих Адуйский, Мурзинский и Ва-тихский плутоны, выделены ранне- и позднепермские, ранне-среднетриасовые и раннеюрские граниты и пегматиты (-260, 250, 230 и 200 млн лет, соответственно).
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Rb-Sr dating on the rocks in Japan (I),
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1967 Abstract: Geologic age measurements with the Rb-Sr method were made on micas and feldspars separated from granites, granite pegmatites, gneisses and schists of the South Western part of Japan. And the results indicate that the time of the igneous and metamorphic activities represented by these rocks are divided into five geologic periods: 1.
Hayase Ichikazu, Kyoichi Ishizaka
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Applicability of XRF technique to Rb-Sr chemical dating of K-bearing minerals
Мінеральні ресурси України, 2014 The possibility of Rb-Sr chemical dating for K-bearing micas by XRF method has been considered by analogy with a CHIME (CHemical Isochronal MEthod) for monazites.
O. A. Andreiev
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Forage intake and performance of heifers fed rice bran on Alexandergrass pasture
Arquivo Brasileiro de Medicina Veterinária e ZootecniaThe study was carried out to evaluate the forage intake and performance of beef heifers from 15 to 18 months of age, grazing on Alexandergrass (Urochloaplantaginea (Link) Hitch) fed rice bran (RB; 0, 0.5 and 1.0% body weight (BW)).
M. Negrini +7 more
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Yankuang ceshi, 2015 X-ray Fluorescence Spectrometry (XRF) and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) were used to obtain the geochemical data of podumene pegmatite, albite pegmatite and potash feldspar pegmatite in the Chuan-ziyuan area.
WEN Chun-hua +3 more
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A Comparison of Microdrilling-TIMS/MC-ICPMS and LA-MC-ICPMS for Micro-sample Sr Isotope Measurement
Yankuang ceshi, 2014 Compared to the traditional strontium isotope analytical method, a micro-sample strontium isotope system study can reveal the heterogeneity of analyzed samples and is widely used in various fields of geology, such as crust-mantle interaction, genesis and
ZHANG Le +4 more
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مجلة بغداد للعلوم, 2011 Grapes and grape seeds are important samples employed for environmental medical studies . The air of this work was to identify and concentration calculation of the elements in grapes fruit and thier seeds by using X-Ray fluoresces technique (XRF ...
Baghdad Science Journal
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MURMANO PLÜTONUNUN YAŞI VE OFİYOLİTLE OLAN İLİŞKİSİ (DİVRİĞİ-SİVAS)
Bulletin of the Mineral Research and Exploration, 1988 Sivas ili, Divriği ilçesinin birkaç km K-KB sında yer alan, bileşimi kuvars-siyenitle diyorit arasında değişen bileşik bir karaktere sahip olan Murmano plütonu, Divriği ofiyolit karmaşığına ait serpantinitler içerisine sokulum yapar.
H.P. ZECK, Taner ÜNLÜ
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Study on the Factors Influencing the Separation of Sr and Nd in Sediments by Ion Exchange Resin
Yankuang ceshi, 2018 BACKGROUND In geological studies, Sr and Nd isotopes are classical isotopic dating and tracer systems. OBJECTIVES The traditional separation method usually uses the AG50W-X8 resin to elute and separate Sr and REEs in sediments, and then uses Sr-special ...
YIN Peng +3 more
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