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Secondary Melt Ornamentation on Westwater, Utah Microspherules: Evidence of an Extraterrestrial Provenance

Published online by Cambridge University Press:  14 March 2018

J. W. Fandrich  and
Richard C. Dujay
J. W. Fandrich
Affiliation:
Westwater Group Geological Research Facility
Richard C. Dujay
Affiliation:
Mesa State College Center for Microscopy

Extract

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Microspherules (MS) ranging in size from 50μm to 425μm were discovered at Westwater, Utah in 1999. Examination of these particles using a scanning electron microscope identifies certain physical features that support an extraterrestrial (ET) provenance for these objects. Energy dispersive spectrometry (EDS) was used to determine the qualitative chemistry of these particles.

Type
Microscopy 101
Information
Microscopy Today , Volume 11 , Issue 1 , February 2003 , pp. 37
Copyright
Copyright © Microscopy Society of America 2003

References

1. Varekamp, Johan C. and Thomas, Ellen. 1982, Chalcophile elements in Cretaceous/Tertiary boundary sediments: Terrestrial or extraterrestrial? In Geological Society of America Special Paper 190.CrossRefGoogle Scholar