The tungsten isotopic composition of the Earth's mantle before the terminal bombardment
M Willbold, T Elliott, S Moorbath - Nature, 2011 - nature.com
Abstract Many precious,'iron-loving'metals, such as gold, are surprisingly abundant in the
accessible parts of the Earth, given the efficiency with which core formation should have …
accessible parts of the Earth, given the efficiency with which core formation should have …
182Hf-182W isotope systematics of chondrites, eucrites, and martian meteorites: Chronology of core formation and early mantle differentiation in Vesta and Mars
The timescale of accretion and differentiation of asteroids and the terrestrial planets can be
constrained using the extinct 182Hf-182W isotope system. We present new Hf-W data for …
constrained using the extinct 182Hf-182W isotope system. We present new Hf-W data for …
New Half-Life Measurement of : Improved Chronometer for the Early Solar System
C Vockenhuber, F Oberli, M Bichler, I Ahmad… - Physical Review Letters, 2004 - APS
The decay of H f 182, now extinct, into stable W 182 has developed into an important
chronometer for studying early solar system processes such as the accretion and …
chronometer for studying early solar system processes such as the accretion and …
Hf–W evidence for rapid differentiation of iron meteorite parent bodies
New, high-precision W isotope data on iron meteorites are presented that provide important
constraints on the timing of silicate–metal segregation in planetesimals. Magmatic iron …
constraints on the timing of silicate–metal segregation in planetesimals. Magmatic iron …
Tungsten isotopic compositions of iron meteorites: chronological constraints vs. cosmogenic effects
High-precision W isotopic compositions are presented for 35 iron meteorites from 7
magmatic groups (IC, IIAB, IID, IIIAB, IIIF, IVA, and IVB) and 3 non-magmatic groups (IAB …
magmatic groups (IC, IIAB, IID, IIIAB, IIIF, IVA, and IVB) and 3 non-magmatic groups (IAB …
A review of W and Sn isotopes and insights into their emerging applications in ore deposit geology
In recent years, the advancements in multi-collector inductively coupled plasma mass
spectrometry (MC–ICP–MS) technology have significantly enhanced our understanding of …
spectrometry (MC–ICP–MS) technology have significantly enhanced our understanding of …
Correlated helium-3 and tungsten isotopes in iron meteorites: quantitative cosmogenic corrections and planetesimal formation times
Core formation in planetesimals can, in principle, be dated using the short-lived 182Hf–
182W chronometer. However, it has been predicted that burnout and production of W …
182W chronometer. However, it has been predicted that burnout and production of W …
Hafnium–tungsten chronometry of angrites and the earliest evolution of planetary objects
Angrites are amongst the oldest basalts in the solar system and their origins are enigmatic,
some even proposing the planet Mercury as the parent body (APB). Whatever their exact …
some even proposing the planet Mercury as the parent body (APB). Whatever their exact …
An improved extraction chromatographic purification of tungsten from a silicate matrix for high precision isotopic measurements using MC-ICPMS
An improved chemical method is developed to accurately measure the W isotopic
compositions of silicate samples with a precision of better than±0.05 ε on ε182W. Compared …
compositions of silicate samples with a precision of better than±0.05 ε on ε182W. Compared …
Tungsten isotopic analysis on six geochemical reference materials using multiple collector-ICP-mass spectrometry coupled with a rhenium-external correction …
K Irisawa, T Hirata - Journal of Analytical Atomic Spectrometry, 2006 - pubs.rsc.org
We have measured 182W/183W, 184W/183W, and 186W/183W ratios for two W standard
solutions (NIST-3163 and JMC-22841) and six geochemical reference materials (JB-3, JA-3 …
solutions (NIST-3163 and JMC-22841) and six geochemical reference materials (JB-3, JA-3 …