Pearson, V. K.; Kearlsey, A. T.; Sephton, M. A. and Gilmour, I.
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|DOI (Digital Object Identifier) Link:||http://dx.doi.org/doi:10.1016/j.pss.2007.04.005|
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We present a method for labelling and locating organic material in extraterrestrial samples in order to determine its spatial arrangement in relation to inorganic components. We have taken a suite of meteorites including carbonaceous chondrites and SNCs (Shergottite-Nakhlite- Chassignites) and attempted to locate organic material within them by labelling with using osmium tetroxide vapour impregnation. This technique is limited by the abundance of organic material within each sample, and the degree of terrestrial contamination which may contribute additional organic components or surface-contaminants that may mask indigenous organic components. Results confirm previous studies that phyllosilicates are key to organic matter accumulation in extraterrestrial environments.
|Item Type:||Journal Article|
|Keywords:||organic matter, carbonaceous chondrites, martian meteorites; scanning electron microscopy; chemical labelling; phyllosilicate minerals|
|Academic Unit/Department:||Science > Life, Health and Chemical Sciences
Science > Physical Sciences
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Iain Gilmour|
|Date Deposited:||12 Jul 2007|
|Last Modified:||02 Dec 2010 20:01|
Available Versions of this Item
The labelling of meteoritic organic material using osmium tetroxide vapour impregnation. (deposited 12 Jul 2007)
- The labelling of meteoritic organic material using osmium tetroxide vapour impregnation. (deposited 12 Jul 2007) [Currently Displayed]
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