A lithium-bearing Ca,Al-rich inclusion from the CM-chondrite Cold Bokkeveld studied by TOF-SIMS and conventional SIMS

Details A lithium-bearing Ca,Al-rich inclusion from the CM-chondrite Cold Bokkeveld studied by TOF-SIMS and conventional SIMS A lithium-bearing Ca,Al-rich inclusion from the CM-chondrite Cold Bokkeveld studied by TOF-SIMS and conventional SIMS

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1253s&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 253.

Computer Science

2

Chondrites, Lithium, Aluminum Compounds, Calcium, Minerals, Mass Spectroscopy, Iron, Silicates

Scientific paper

Imaging time-of-flight secondary ion mass spectrometry (TOF-SIMS) was used to study the elemental distribution of Li within several carbonaceous chondrites, because Li can be detected by TOF-SIMS with high sensitivity. In CM-chondrites Li-enrichments were exclusively found within Ca,Al-rich inclusions and mainly occur in the Fe-rich phyllosilicates. Since Li-enrichments have not been found within the Fe-rich phyllosilicates of the matrix, it is possible that those within CAIs were formed by alteration in a different environment. A nebular origin for the alteration of CAIs is suggested.

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