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Interpretation and mathematical modeling of temporal changes of temperature observed in borehole Yaxcopoil-1 within the Chicxulub impact structure, Mexico
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SYSNO ASEP 0330216 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Interpretation and mathematical modeling of temporal changes of temperature observed in borehole Yaxcopoil-1 within the Chicxulub impact structure, Mexico Author(s) Šafanda, Jan (GFU-E) ORCID, RID
Wilhelm, H. (DE)
Heidinger, P. (DE)
Čermák, Vladimír (GFU-E) ORCID, RIDSource Title Journal of Hydrology. - : Elsevier - ISSN 0022-1694
Roč. 372, č. 1-4 (2009), s. 9-16Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords repeated borehole temperature logging ; karstic environment ; Yucatan ; groundwater convection ; heat transport numerical simulation ; fluid dynamics Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects GA205/06/1181 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000267334800002 DOI 10.1016/j.jhydrol.2009.03.023 Annotation Geothermal research of the Chicxulub impact structure on the Yucatan Peninsula, Mexico, included repeated temperature logs following 0.3–0.8, 15, 24, 34 and 50 months after shut-in of drilling operations at the 1.5 km deep Yaxcopoil-1 borehole. A gradual distortion of the linear temperature profile by a cold wave propagating downward from 145 m to 317 m was detected within the observational period of 49 months (March 2002–April 2006). The amplitude of the cold wave was increasing with depth and time in the range of 0.8–1.6°C. As an explanation of this unusual phenomenon, the hypothesis of downward migration of a large volume of drilling mud, reported lost during drilling within the overlying and cooler highly porous and permeable karstic rocks, has been proposed. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
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