Add to ORKGUse of the extinct 182Hf-182W chronometer to constrain the timing of planetary accretion and differentiation rests on the assumption that the solar nebula had homogeneous tungsten isotopic composition. Here, we report deficiencies of0.1 part in 10,000 in the abundance of 184W in group IVB iron meteorites relative to the silicate Earth. These are most likely due to incomplete mixing at the planetesimal scale (2Y4 km radius bodies) of the products of slow (s-) and rapid (r-) neutron-capture nucleosynthesis in the solar nebula. The correction that must be applied to the 182Hf- 182W model age of core formation in IVB irons due to the presence of these nuclear anomalies is 0.5 Myr. Subject headinggs: minor planets, asteroids — nuclear reactions,...
In the Solar system, short-lived radioisotopes, such as 26Al, played a crucial role during the forma...
THE accretion of the Earth and Moon within the solar nebula is thought(1-3) to have taken 50 to 100 ...
Enstatite chondrites have often been considered to be closely related to the material from which Ear...
Use of the extinct 182 Hf- 182 W chronometer to constrain the timing of planetary accretion and diff...
We measured tungsten (W) isotopes in 23 iron meteorites and the metal phase of the CB chondrite Gujb...
Excesses and deficiencies in 182W in meteorites and lunar samples relative to the terrestrial 182W a...
Abstract—The rates of accretion and core formation of the Earth and other inner solar system objects...
The origin of ¹⁸ºW excesses in iron meteorites has been a recently debated topic. Here, a suite of I...
High-precision W isotopic compositions are presented for 35 iron meteorites from 7 magmatic groups (...
Core formation in planetesimals can, in principle, be dated using the short-lived 182Hf-182W chronom...
We have investigated nucleosynthetic Mo isotope anomalies in 38 different bulk iron meteorites from ...
Tungsten isotope compositions of magmatic iron meteorites yield ages of differentiation that are wit...
The presence or absence of variations in the mass-independent abundances of Si isotopes in bulk mete...
The short-lived 182Hf–182W decay system is a powerful chronometer for constraining the timing of met...
Isotope anomalies provide important information about early solar system evolution. Here we report m...
In the Solar system, short-lived radioisotopes, such as 26Al, played a crucial role during the forma...
THE accretion of the Earth and Moon within the solar nebula is thought(1-3) to have taken 50 to 100 ...
Enstatite chondrites have often been considered to be closely related to the material from which Ear...
Use of the extinct 182 Hf- 182 W chronometer to constrain the timing of planetary accretion and diff...
We measured tungsten (W) isotopes in 23 iron meteorites and the metal phase of the CB chondrite Gujb...
Excesses and deficiencies in 182W in meteorites and lunar samples relative to the terrestrial 182W a...
Abstract—The rates of accretion and core formation of the Earth and other inner solar system objects...
The origin of ¹⁸ºW excesses in iron meteorites has been a recently debated topic. Here, a suite of I...
High-precision W isotopic compositions are presented for 35 iron meteorites from 7 magmatic groups (...
Core formation in planetesimals can, in principle, be dated using the short-lived 182Hf-182W chronom...
We have investigated nucleosynthetic Mo isotope anomalies in 38 different bulk iron meteorites from ...
Tungsten isotope compositions of magmatic iron meteorites yield ages of differentiation that are wit...
The presence or absence of variations in the mass-independent abundances of Si isotopes in bulk mete...
The short-lived 182Hf–182W decay system is a powerful chronometer for constraining the timing of met...
Isotope anomalies provide important information about early solar system evolution. Here we report m...
In the Solar system, short-lived radioisotopes, such as 26Al, played a crucial role during the forma...
THE accretion of the Earth and Moon within the solar nebula is thought(1-3) to have taken 50 to 100 ...
Enstatite chondrites have often been considered to be closely related to the material from which Ear...