The Petite Anse-Diamant Geothermal System (Martinique Island, Lesser Antilles): Results of the 2012-2013 Exploration
| العنوان: | The Petite Anse-Diamant Geothermal System (Martinique Island, Lesser Antilles): Results of the 2012-2013 Exploration |
|---|---|
| المؤلفون: | Gadalia, Alain, Baltassat, Jean-Michel, Bouchot, Vincent, Caritg-Monnot, Séverine, Gal, Frédérick, Girard, Jean-François, Gutierrez, Alexis, Jacob, Thomas, Martelet, Guillaume, Coppo, Nicolas, Rad, Setareh, Tailame, Anne-Lise, Traineau, Hervé, Vittecoq, Benoit, Wawrzyniak, Pierre |
| المساهمون: | Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Compagnie Française de Géothermie (CFG), ADEME, FEDER, Région Martinique, SMEM, BRGM |
| المصدر: | World Geothermal Congress 2015 World Geothermal Congress 2015, Apr 2015, Melbourne, Australia |
| بيانات النشر: | HAL CCSD, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | MT resistive body, intrusive complex, water-rock interaction, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], caprock doming, paleo-geothermal system, geothermometers, Flank collapse, magmatic degassing |
| الوصف: | International audience; A 2012-2013 additional and combined – geological, hydrogeological, geochemical, geophysical -surface exploration results in a new insight of the Martinique geothermal systems, including Petite Anse – Diamant area. The Petite Anse – Diamanthot spring is located at the foot of a small volcano -Morne Jacqueline – part of a NW-SE volcano-tectonic corridor. The Southern flank of this volcano collapsed leading to the outcrop: 1) A previous neutral, high temperature hydrothermal activity corresponding to a MT conductive layer interpreted as a clay cap of the present geothermal system. The bottom of the conductive layer displays also a doming shape, characterizing the top of geothermal system; 2) A dyke of diorite coinciding with the top of a huge MT resistive body, following the volcanic corridor, and interpreted as a magma intrusion; it generates several on and off-shore spots of magmatic degassing; this intrusive gas –rock may act as a heat source and interact with the geothermal fluid. The Petite Anse spring water is of Na-Cl type due to a seawater contribution. The associated geothermal reservoir temperature is estimated at 190-210°C. The recharge of the system is likely to be low, because of both a bad permeability resulting from the extensive acidic alteration related to previous fumarolic expression, and limited rainfalls. An exploration drilling area is proposed at the North of the Petite Anse village. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a964cc3753ea92aaa4ba90849f044a35 https://hal-brgm.archives-ouvertes.fr/hal-01102469/document |
| رقم الأكسشن: | edsair.dedup.wf.001..a964cc3753ea92aaa4ba90849f044a35 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |