Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland)
Present-day rift zones in Iceland commonly develop high-temperature geothermal systems related to central volcanoes (Trønnes, 2003). This study was developed at the high-temperature geothermal field of Námafjall, located at the Iceland Northern Rift Zone, near the Krafla central volcano. In this are...
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Sociedad Española de Mineralogía
2011
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ftcsic:oai:digital.csic.es:10261/61903 2024-02-11T10:04:58+01:00 Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) Albert Mínguez, Helena Ortega, L. Lunar, Rosario Martínez-Frías, J. Piña, Rubén 2011-09 http://hdl.handle.net/10261/61903 en eng Sociedad Española de Mineralogía http://www.ehu.es/sem/macla_pdf/macla15/Macla15_025.pdf Albert Mínguez, H., Ortera, L., Lunar, R., Martínez Frías, J., Piña, R. (2011). Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland). MACLA: Revista Española de la Sociedad de Mineralogia, 15, 25-26. 1885-7264 http://hdl.handle.net/10261/61903 open Alteración hidrotermal Campo geotérmico Esmectita Caolinita Islandia Námafjall Hydrothermal alteration Geothermal field Smectite Kaolinite Iceland artículo http://purl.org/coar/resource_type/c_6501 2011 ftcsic 2024-01-16T09:43:12Z Present-day rift zones in Iceland commonly develop high-temperature geothermal systems related to central volcanoes (Trønnes, 2003). This study was developed at the high-temperature geothermal field of Námafjall, located at the Iceland Northern Rift Zone, near the Krafla central volcano. In this area, the constant hydrothermal activity alters Pleistocene hyaloclastites sequences and Holocene lavas and scoria cones especially to clay minerals. Different degrees of alteration, anisotropic distribution of fissures, faults and permeable zones, and accumulation of different minerals, generates a spotty distribution of red, brown, yellow, pink and white patches, reflecting the mosaic character of hydrothermal alteration (Geptner et al., 2005, 2007). A detailed mineralogical study of the altered volcanic rocks from the outer edge of the Námafjall geothermal field has been carried out in order to determine the surface alteration processes associated with geothermal activity, inferring pH conditions and, where appropriate, the temperature of the alteration processes. Peer reviewed Article in Journal/Newspaper Iceland Islandia Digital.CSIC (Spanish National Research Council) Krafla ENVELOPE(-16.747,-16.747,65.713,65.713) Námafjall ENVELOPE(-16.820,-16.820,65.631,65.631) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Alteración hidrotermal Campo geotérmico Esmectita Caolinita Islandia Námafjall Hydrothermal alteration Geothermal field Smectite Kaolinite Iceland |
spellingShingle |
Alteración hidrotermal Campo geotérmico Esmectita Caolinita Islandia Námafjall Hydrothermal alteration Geothermal field Smectite Kaolinite Iceland Albert Mínguez, Helena Ortega, L. Lunar, Rosario Martínez-Frías, J. Piña, Rubén Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
topic_facet |
Alteración hidrotermal Campo geotérmico Esmectita Caolinita Islandia Námafjall Hydrothermal alteration Geothermal field Smectite Kaolinite Iceland |
description |
Present-day rift zones in Iceland commonly develop high-temperature geothermal systems related to central volcanoes (Trønnes, 2003). This study was developed at the high-temperature geothermal field of Námafjall, located at the Iceland Northern Rift Zone, near the Krafla central volcano. In this area, the constant hydrothermal activity alters Pleistocene hyaloclastites sequences and Holocene lavas and scoria cones especially to clay minerals. Different degrees of alteration, anisotropic distribution of fissures, faults and permeable zones, and accumulation of different minerals, generates a spotty distribution of red, brown, yellow, pink and white patches, reflecting the mosaic character of hydrothermal alteration (Geptner et al., 2005, 2007). A detailed mineralogical study of the altered volcanic rocks from the outer edge of the Námafjall geothermal field has been carried out in order to determine the surface alteration processes associated with geothermal activity, inferring pH conditions and, where appropriate, the temperature of the alteration processes. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Albert Mínguez, Helena Ortega, L. Lunar, Rosario Martínez-Frías, J. Piña, Rubén |
author_facet |
Albert Mínguez, Helena Ortega, L. Lunar, Rosario Martínez-Frías, J. Piña, Rubén |
author_sort |
Albert Mínguez, Helena |
title |
Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
title_short |
Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
title_full |
Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
title_fullStr |
Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
title_full_unstemmed |
Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland) |
title_sort |
mineralogy of the hydrothermal alteration in the námafjall geothermal field (iceland) |
publisher |
Sociedad Española de Mineralogía |
publishDate |
2011 |
url |
http://hdl.handle.net/10261/61903 |
long_lat |
ENVELOPE(-16.747,-16.747,65.713,65.713) ENVELOPE(-16.820,-16.820,65.631,65.631) |
geographic |
Krafla Námafjall |
geographic_facet |
Krafla Námafjall |
genre |
Iceland Islandia |
genre_facet |
Iceland Islandia |
op_relation |
http://www.ehu.es/sem/macla_pdf/macla15/Macla15_025.pdf Albert Mínguez, H., Ortera, L., Lunar, R., Martínez Frías, J., Piña, R. (2011). Mineralogy of the Hydrothermal Alteration in the Námafjall Geothermal Field (Iceland). MACLA: Revista Española de la Sociedad de Mineralogia, 15, 25-26. 1885-7264 http://hdl.handle.net/10261/61903 |
op_rights |
open |
_version_ |
1790601760981647360 |