Browsing by Subject "ZIRCONIUM"
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Browsing by Subject "ZIRCONIUM"
Now showing items 1-7 of 7
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(1999)This paper presents a Hf and Zr chemical purification method and calibration procedure used to measure Zr/Hf ratios in terrestrial and extraterrestrial rocks by isotope dilution mass spectrometry with a mixed 96Zr-179Hf ...
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(2000)In order to evaluate the widely accepted assumption that Zr/Hf ratios are uniform and chondritic (i.e. equal to 36.6) in terrestrial rocks [Jochum et al., Geochim. Cosmochim. Acta 50 (1986) 1173-1183], precise Zr/Hf ...
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(2006)A multinuclear solid-state NMR investigation of the structure of the amorphous alteration products (so called gels) that form during the aqueous alteration of silicate glasses is reported. The studied glass compositions ...
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(1997)An analytical method for high-precision measurement of zirconium isotope ratios using a Sector thermal ionization mass spectrometer (TIMS) is reported. The chemical separation procedure of Zr has been refined by employing ...
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(2000)The presence of Zr isotope anomalies in the early solar system is demonstrated with the identification of 92Zr excesses and 96Zr deficits in several chondrites and the CAI Allende inclusions. The isotopic composition of ...
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(2011)Синтезированы новые тройные молибдаты рубидия, циркония (гафния) и двухвалентной меди Rb5(Cu0.5R1.5)(MoO4)6 (R = Zr, Hf), которые кристаллизуются структурном типе K5(Mg0.5Zr1.5)(MoO4)6 (пр. гр. R3c, Z=6), и изучены их ...
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(Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный университет», 2018)Ловозерский щелочной массив самая крупная из известных щелочных расслоенных интрузий. В данной работе впервые комплексно рассмотрена эволюция составов клинопироксенов третьей интрузивной фазы основной магматической стадии ...
Now showing items 1-7 of 7