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The thermal alteration by pyrolysis of the organic component of small projectiles of mudrock during capture at hypervelocity
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2008 (English)In: Journal of Analytical and Applied Pyrolysis, Vol. 82, 312-314 p.Article in journal (Refereed) Published
Abstract [en]

In a series of experiments the pyrolytic effects of the heating induced during the hypervelocity impact

(HVI) of small projectiles of high TOC mudrock were observed. Impacts at these high speeds (km s-1)

release sufficient energy to vaporise metal projectiles, and the temperatures created greatly exceed the

pyrolysis temperatures typically employed during laboratory studies of the thermal alteration of

sedimentary organic matter. Despite this the organic geochemical analyses of projectiles of Orcadian

Laminite impacted into targets of sand and water at hypervelocities provides evidence that the structural

backbone of biomarkers has remained intact and that only a comparatively low degree of thermal

alteration (pre-oil window) has occurred. While further studies are necessary, it appears that the organic

component of a projectile captured at hypervelocity will be a slightly thermally altered sample of its


Place, publisher, year, edition, pages
2008. Vol. 82, 312-314 p.
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-14924DOI: doi:10.1016/j.jaap.2008.05.002ISI: 000258433800021OAI: diva2:181444
Available from: 2008-11-10 Created: 2008-11-10 Last updated: 2011-01-10Bibliographically approved

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ReferencesLink to record
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