Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/95770
Title: Analysis of dinosaur samples by nuclear microscopy
Authors: Wu, X. 
Orlić, I. 
Tang, S.M. 
Wang, Y.
Wang, X.
Zhu, J.
Issue Date: Jul-1997
Source: Wu, X.,Orlić, I.,Tang, S.M.,Wang, Y.,Wang, X.,Zhu, J. (1997-07). Analysis of dinosaur samples by nuclear microscopy. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 130 (1-4) : 308-314. ScholarBank@NUS Repository.
Abstract: Several dinosaur bone and eggshell fossil samples unearthed at different sites in China were analyzed by means of nuclear microscopy. Concentrations and distributions of elements such as Na, Mg, Al, P, S, Ca, Cr, Mn, Fe, Cu, Zn, As, Br, Sr, Y, Ce, Pb and U, etc. were obtained for each sample. The results of quantitative PIXE and RBS analyses show unusually high concentrations of U and Ce in several samples obtained from a period near the K-T boundary (between Cretaceous and Tertiary periods, 65 million years ago), suggesting that some form of environmental pollution could be the cause of dinosaur extinction. © 1997 Elsevier Science B.V.
Source Title: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
URI: http://scholarbank.nus.edu.sg/handle/10635/95770
ISSN: 0168583X
Appears in Collections:Staff Publications

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