4.7 Article

Silicon isotopes in 3.8 Ga West Greenland rocks as clues to the Eoarchaean supracrustal Si cycle

Journal

EARTH AND PLANETARY SCIENCE LETTERS
Volume 245, Issue 1-2, Pages 162-173

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ELSEVIER
DOI: 10.1016/j.epsl.2006.02.046

Keywords

silicon isotopes; Eoarchaean; banded iron formations; metabasalts; Isua; Akilia

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We report MC-ICP-MS Si-isotopic measurements (delta(29) Si recalculated as delta Si-30) on micro-subsamples (at 500 mu m scale) from several major rock types of the similar to 3.8-Ga-old Isua Greenstone Belt (IGB, southern West Greenland) and surrounding Eoarchaean terrains. With a large overall range of variations (-2.80 parts per thousand

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