CaltechAUTHORS
Published August 25, 2000 | Version public
Journal Article Metadata-only

Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign?

Creators

  • 1. ROR icon National Museum of Natural History
  • 2. ROR icon California Institute of Technology
  • 3. ROR icon Arizona State University

Abstract

The primary mineral assemblages and initial ^(26)Al/^(27)Al ratios of rare calcium-aluminum–rich inclusions (CAIs) from enstatite (E) chondrites are similar to those of CAIs from other chondrite classes. CAIs from all chondrite classes formed under oxidizing conditions that are much different from the reducing conditions under which the E chondrites formed. Either CAIs formed at an earlier, more oxidizing epoch in the region where E chondrites ultimately formed, or they formed at a different place in the solar nebula and were transported into the E chondrite formation region.

Additional Information

© 2000 American Association for the Advancement of Science. 19 April 2000; accepted 15 June 2000. Supported by NASA grants NAG5-7396 (G.J.M.), NAG5-4083 (G.J.W.), and NAG5-8158 (G.R.H.). We thank the Antarctic Meteorite Working Group and NASA Johnson Space Center for providing the Antarctic meteorite thin sections. Caltech Division Contribution 8652 (1044).

Additional details

Identifiers

Eprint ID
43090
Resolver ID
CaltechAUTHORS:20131219-100635152

Funding

NASA
NAG5-7396
NASA
NAG5-4083
NASA
NAG5-8158

Dates

Created
2013-12-19
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field

Caltech Custom Metadata

Other Numbering System Name
Lunatic Asylum Lab
Other Numbering System Identifier
1044