The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration
International audience The recognition of a fossil equivalent of the active geothermal system of the Basse-Terre Island in Guadeloupe archipelago (Lesser Antilles arc) in Terre-de-Haut Island (Les Saintes archipelago) allow us to better constrain the structure, the mineralogy and the petrological ch...
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ftunivcotedazur:oai:HAL:hal-03573091v1 2023-10-09T21:52:49+02:00 The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration Favier, Alexiane Lardeaux, Jean-Marc Verati, Chrystele Corsini, Michel Münch, Philippe Ventalon, Sandra Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Géoazur (GEOAZUR 7329) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud ) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) ADEME - Programme Investissement d'Avenir IGA Reykjavik, Iceland 2021-04-01 https://hal.science/hal-03573091 https://hal.science/hal-03573091/document https://hal.science/hal-03573091/file/Concept%20of%20an%20exhumed%20analogue_TDH_WGS%202021_Geoazur.pdf en eng HAL CCSD World Geothermal Congress hal-03573091 https://hal.science/hal-03573091 https://hal.science/hal-03573091/document https://hal.science/hal-03573091/file/Concept%20of%20an%20exhumed%20analogue_TDH_WGS%202021_Geoazur.pdf http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess Proceedings World Geothermal Congress 2020+1 World Geothermal Congress 2020+1 https://hal.science/hal-03573091 World Geothermal Congress 2020+1, IGA, Apr 2021, Reykjavik, Iceland Lesser Antilles volcanic arc high-enthalpy geothermal field exhumed paleo-reservoir hydrothermal transformations model for fluids pathways [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU]Sciences of the Universe [physics] [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology info:eu-repo/semantics/conferenceObject Conference papers 2021 ftunivcotedazur 2023-09-12T23:06:07Z International audience The recognition of a fossil equivalent of the active geothermal system of the Basse-Terre Island in Guadeloupe archipelago (Lesser Antilles arc) in Terre-de-Haut Island (Les Saintes archipelago) allow us to better constrain the structure, the mineralogy and the petrological characters of the deep parts of an active geothermal reservoir. First, we demonstrate the occurrence, in Terre-de-Haut Island, of an exhumed analogue of the deeper parts Bouillante geothermal field. In this exhumed paleo-geothermal reservoir we characterize the nature and the P-T evolutions of the hydrothermal mineral associations in relation with fluids transfers. Moreover, high-temperature hydrothermal activity is coeval with the development of ductile tectonic structures, particularly schistose corridors, and is dated at 2.59 ± 0.12 Ma on white micas, involving maximum activity of 600 ky. These data provide a conceptual model, including brittle-ductile transition located at a depth between 2.5 and 4 km. In this way, brittle and ductile tectonic structures are efficient drains to connected vertical and lateral fluids and heat transfers. This may provide new guides for exploration of geothermal resources in volcanic arcs. Conference Object Iceland HAL Université Côte d'Azur |
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collection |
HAL Université Côte d'Azur |
op_collection_id |
ftunivcotedazur |
language |
English |
topic |
Lesser Antilles volcanic arc high-enthalpy geothermal field exhumed paleo-reservoir hydrothermal transformations model for fluids pathways [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU]Sciences of the Universe [physics] [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology |
spellingShingle |
Lesser Antilles volcanic arc high-enthalpy geothermal field exhumed paleo-reservoir hydrothermal transformations model for fluids pathways [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU]Sciences of the Universe [physics] [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology Favier, Alexiane Lardeaux, Jean-Marc Verati, Chrystele Corsini, Michel Münch, Philippe Ventalon, Sandra The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
topic_facet |
Lesser Antilles volcanic arc high-enthalpy geothermal field exhumed paleo-reservoir hydrothermal transformations model for fluids pathways [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU]Sciences of the Universe [physics] [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology |
description |
International audience The recognition of a fossil equivalent of the active geothermal system of the Basse-Terre Island in Guadeloupe archipelago (Lesser Antilles arc) in Terre-de-Haut Island (Les Saintes archipelago) allow us to better constrain the structure, the mineralogy and the petrological characters of the deep parts of an active geothermal reservoir. First, we demonstrate the occurrence, in Terre-de-Haut Island, of an exhumed analogue of the deeper parts Bouillante geothermal field. In this exhumed paleo-geothermal reservoir we characterize the nature and the P-T evolutions of the hydrothermal mineral associations in relation with fluids transfers. Moreover, high-temperature hydrothermal activity is coeval with the development of ductile tectonic structures, particularly schistose corridors, and is dated at 2.59 ± 0.12 Ma on white micas, involving maximum activity of 600 ky. These data provide a conceptual model, including brittle-ductile transition located at a depth between 2.5 and 4 km. In this way, brittle and ductile tectonic structures are efficient drains to connected vertical and lateral fluids and heat transfers. This may provide new guides for exploration of geothermal resources in volcanic arcs. |
author2 |
Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Géoazur (GEOAZUR 7329) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud ) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) ADEME - Programme Investissement d'Avenir IGA |
format |
Conference Object |
author |
Favier, Alexiane Lardeaux, Jean-Marc Verati, Chrystele Corsini, Michel Münch, Philippe Ventalon, Sandra |
author_facet |
Favier, Alexiane Lardeaux, Jean-Marc Verati, Chrystele Corsini, Michel Münch, Philippe Ventalon, Sandra |
author_sort |
Favier, Alexiane |
title |
The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
title_short |
The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
title_full |
The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
title_fullStr |
The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
title_full_unstemmed |
The Concept of Exhumed Analogue for Characterization of High-Energy Geothermal Reservoir: an Example from Les Saintes Island (Guadeloupe Archipelago, Lesser Antilles) and Consequences for Exploration |
title_sort |
concept of exhumed analogue for characterization of high-energy geothermal reservoir: an example from les saintes island (guadeloupe archipelago, lesser antilles) and consequences for exploration |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03573091 https://hal.science/hal-03573091/document https://hal.science/hal-03573091/file/Concept%20of%20an%20exhumed%20analogue_TDH_WGS%202021_Geoazur.pdf |
op_coverage |
Reykjavik, Iceland |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Proceedings World Geothermal Congress 2020+1 World Geothermal Congress 2020+1 https://hal.science/hal-03573091 World Geothermal Congress 2020+1, IGA, Apr 2021, Reykjavik, Iceland |
op_relation |
hal-03573091 https://hal.science/hal-03573091 https://hal.science/hal-03573091/document https://hal.science/hal-03573091/file/Concept%20of%20an%20exhumed%20analogue_TDH_WGS%202021_Geoazur.pdf |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
_version_ |
1779316004126457856 |