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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universitat de Barcelona
2011
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| Online Access: | https://www.redalyc.org/articulo.oa?id=50521609002 |
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Table of Contents:
- An optimized thermal extraction system for preparation of water from fluid inclusions in speleothems C. Jiménez de Cisneros E. Caballero J.A. Vera B. Andreo Ciencias de la Tierra Speleothems Paleoclimate Stable isotopes Fluid inclusions The fluid inclusions present in speleothems (secondary mineral deposits formed in caves) are a relict sample of the parent seepage water from which the speleothem was deposited and determination of their composition can solve the palaeotemperature equation for the precipitation of speleothem carbonate. We have extracted fluid inclusions using a newly-designed thermal vacuum extraction method in stalagmites and stalactites from Nerja Cave, Southern Spain. Optimal conditions were found to involve heating samples crushed to 0.8-2mm for 3 hours at 300-400ºC. Waters extracted from modern aragonitic speleothem samples produced results on the Meteoric Water Line defined by modern infiltration and other waters associated with the cave and hence demonstrate an absence of fractionation effects. This successfully demonstrates the utility of the method. 2011 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50521609002 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.2 Vol.9