Siderophile element fractionation in meteor crater impact glasses and metallic spherules

Author:: Scott, E. R. D.
Published:: JAN 1, 1993.
Physical Description:: 1 electronic document
Additional Creators:: Mittlefehldt, David W. and See, T. H.

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Summary:

Meteor Crater, Arizona provides an opportunity to study, in detail, elemental fractionation processes occurring during impacts through the study of target rocks, meteorite projectile and several types of impact products. We have performed EMPA and INAA on target rocks, two types of impact glass and metallic spherules from Meteor Crater. Using literature data for the well studied Canyon Diablo iron we can show that different siderophite element fractionations affected the impact glasses than affected the metallic spherules. The impact glasses primarily lost Au, while the metallic spherules lost Fe relative to other siderophile elements.

Other Subject(s):

ASTROPHYSICS

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 19940011941.
Accession ID: 94N16414.
Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M; p 995-996.

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