Asteroids and meteorites: Origin of stony-iron meteorites at mantle-core boundaries

Richard J. Greenberg, Clark R. Chapman

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Stony-iron meteorites formed at the core/mantle interfaces of small asteroidal parents. The mesosiderites formed when the thick crust of a largely molten parent body (100-200 km in diameter) foundered and sank through the mantle to the core. Pallasites formed in smaller parent bodies (50-100 km) in which olivine crystals from the partially molten mantle sank to the core/mantle interface and rafted there. Subsequent collisions stripped away the rocky mantles of both kinds of parent bodies, exposing the stony-iron surfaces of their cores to direct impacts, which continue to knock off meteorite fragments.

Original languageEnglish (US)
Pages (from-to)267-279
Number of pages13
JournalIcarus
Volume57
Issue number2
DOIs
StatePublished - 1984

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stony-iron meteorites
stony iron
stony meteorite
core-mantle boundary
iron meteorite
meteorites
asteroids
asteroid
meteorite
Earth mantle
mantle
parent body
sinks
mesosiderite
olivine
crusts
collision
fragments
crystal
crust

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Asteroids and meteorites : Origin of stony-iron meteorites at mantle-core boundaries. / Greenberg, Richard J.; Chapman, Clark R.

In: Icarus, Vol. 57, No. 2, 1984, p. 267-279.

Research output: Contribution to journalArticle

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