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Refractory spherules in the Murchison Meteorite: Are they condrules?
Author(s) -
Macdougall J. D.
Publication year - 1981
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl008i009p00966
Subject(s) - murchison meteorite , refractory (planetary science) , chondrite , carbonaceous chondrite , meteorite , geology , chondrule , allende meteorite , texture (cosmology) , astrobiology , geochemistry , mineralogy , refractory metals , materials science , metallurgy , biology , image (mathematics) , artificial intelligence , computer science
Refractory spherules in the Murchison carbonaceous chondrite show a range of compositions similar to those of coexisting irregular inclusions. However, the shape and internal texture of the spherules are suggestive of formation from a liquid. The coexistance of these two types of refractory inclusions suggests that the spherules were formed by melting of previously condensed irregular inclusions. If so, they can be properly termed chondrules.