Hammadah AL Hamra 126--A New Saharan Ureilite

Details Hammadah AL Hamra 126--A New Saharan Ureilite Hammadah AL Hamra 126--A New Saharan Ureilite

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1173s&link_type=abstract

Lunar and Planetary Science, volume 27, page 1173

Computer Science

1

Carbon, Exsolution, Oxygen, Ureilites

Scientific paper

A new ureilite (HH126) was found in 1995 during a collection trip to the Hammadah al Hamra region of Libya. This ureilite (1998g), although fairly weathered, displays some interesting features. Core olivine composition, oxygen and carbon isotopic composition clearly indicate that this meteorite is a Group 1 ureilite. Most of its olivines display widespread metal exsolution, far more extensive than than the ~100,um rims normally seen. Although similar textures have been seen in the two most reduced ureilites known, the mechanism to produce such textures in HH126 are probably different to those for the reduced meteorites where reduction of the magma supplied the heat. Slow cooling of the excavated material on the ureilite parent body (UPB) may account for the features presently observed.

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