The Polonnaruwa meteorite: oxygen isotope, crystalline and biological composition

Wallis, Jamie, Miyake, Nori, Hoover, Richard B., Oldroyd, Anthony, Wallis, Daryl H., Samaranayake, Anil, Wickramarathne, K., Wallis, M. K., Gibson, Carl H. and Wickramasinghe, N. C. 2013. The Polonnaruwa meteorite: oxygen isotope, crystalline and biological composition. Journal of Cosmology 22 (2)

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Abstract

Results of X-Ray Diffraction (XRD) analysis, Triple Oxygen Isotope analysis and Scanning Electron Microscopic (SEM) studies are presented for stone fragments recovered from the North Central Province of Sri Lanka following a witnessed fireball event on 29 December 2012. The existence of numerous nitrogen depleted highly carbonaceous fossilized biological structures fused into the rock matrix is inconsistent with recent terrestrial contamination. Oxygen isotope results compare well with those of CI and CI-like chondrites but are inconsistent with the fulgurite hypothesis.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	Q Science > QE Geology
Last Modified:	06 Dec 2024 22:00
URI:	https://orca.cardiff.ac.uk/id/eprint/71916

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