Nature, Količina 456Sir Norman Lockyer Macmillan Journals Limited, 2008 |
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... lead on missing lead The unique lead isotope ratios of Earth's man- tle - differing from those of the CI chondrite meteorites thought to have been the building blocks of the terrestrial planets - suggest that some lead was lost about 50 ...
... lead on missing lead The unique lead isotope ratios of Earth's man- tle - differing from those of the CI chondrite meteorites thought to have been the building blocks of the terrestrial planets - suggest that some lead was lost about 50 ...
Stran 89
... lead was lost about 50 to 130 Myr after Solar System formation24 . This has commonly been explained by lead lost via the segregation of a sulphide melt to the Earth's core , which assumes that lead has an affinity towards sulphide ...
... lead was lost about 50 to 130 Myr after Solar System formation24 . This has commonly been explained by lead lost via the segregation of a sulphide melt to the Earth's core , which assumes that lead has an affinity towards sulphide ...
Stran 91
... lead to be sequestered to the core . No experimental evi- dence exists to support a Dpь value of that magnitude . It seems that the Earth's high U / Pb ratio cannot be explained easily by lead pumping to the core . Alternatives are that ...
... lead to be sequestered to the core . No experimental evi- dence exists to support a Dpь value of that magnitude . It seems that the Earth's high U / Pb ratio cannot be explained easily by lead pumping to the core . Alternatives are that ...
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