Articles | Volume 12, issue 3
Research article
12 Feb 2015
Research article |  | 12 Feb 2015

New highlights of phytolith structure and occluded carbon location: 3-D X-ray microscopy and NanoSIMS results

A. Alexandre, I. Basile-Doelsch, T. Delhaye, D. Borshneck, J. C. Mazur, P. Reyerson, and G. M. Santos


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Short summary
Phytoliths contain occluded organic compounds called phytC. The nature and location of phytC in biogenic silica structures is poorly understood. Here, we reconstructed the 3-D structure of phytoliths using 3-D Xray microscopy. We further evidenced a pool of phytC, continuously distributed in the silica structure, using nanoscale secondary ion mass spectrometry (NanoSIMS). Our findings allowed the re-evaluation of previous suggestions regarding phytC quantification and environmental meaning.
Final-revised paper