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Significación geoquímico-orgánica de esteroles y estanonas en carbones de bajo rango

Authors: Río Andrade, José Carlos del; González-Vila, Francisco Javier; Martín Martínez, Francisco;

Significación geoquímico-orgánica de esteroles y estanonas en carbones de bajo rango

Abstract

[ES]: Se han analizado los esteroles y estanonas en la fracción bituminosa del lignito de Arenas del Rey. Entre los primeros se han identificado el colesterol, campesterol, estigmasterol y fo-sitosterol, y su distribución sugiere un origen mixto de plantas terrestres superiores y plankton marino. Las estanonas corresponden a los homólogos C27-C29 con la configuración 5alfa, lo que indica que no provienen de la degradación de los esteroles sino más bien de una contribución directa de organismos vivos. La preservación de esteroles y estanonas refleja la inmadurez de este lignito.

[EN]: The bituminous fraction from Arenas del Rey lignite has been analized for sterols and stanones. Sterols included cholesterol, campesterol, stigmasterol and beta-sitosterol and their distribution suggest both terrestrial higher plants and plankton inputs. The stanones consist of the C27 to C29 homologs with the biological configuration (5alpha) indicating that they do not arise from sterol degradation but from a direct biological input. The preservation of sterols and stanones without changes reflects the irnmaturity of this lignite.

9 páginas, 4 figuras, 13 referencias.-- Comunicación presentada en la citada Bienal, celebrada en septiembre de 1989, Sevilla, España.

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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