Hf-W thermochronometry: Closure temperature and constraints on the accretion and cooling history of the H chondrite parent body

We obtained Hf-W metal-silicate isochrons for several H chondrites of petrologic types 4, 5, and 6 to constrain the accretion and high-temperature thermal history of the H chondrite parent body. The silicate fractions have 180Hf/184W ratios up to ∼ 51 and 182W/184W ratios up to ∼ 33 ε units higher t...

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Những tác giả chính: Kleine, T, Touboul, M, Van Orman, J, Bourdon, B, Maden, C, Mezger, K, Halliday, A
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2008