{"id":177,"date":"2025-12-11T13:32:36","date_gmt":"2025-12-11T12:32:36","guid":{"rendered":"https:\/\/geops.geol.u-psud.fr\/br\/?p=177"},"modified":"2026-03-03T16:42:39","modified_gmt":"2026-03-03T15:42:39","slug":"rocs","status":"publish","type":"post","link":"https:\/\/geops.geol.u-psud.fr\/br\/2025\/12\/11\/rocs\/","title":{"rendered":"ROCS"},"content":{"rendered":"<h3><strong>The geothermal systems of the Vall\u00e8s Fault (NE of Spain) (ROCS)<\/strong><\/h3>\n<p>The ongoing energetic transition needs of critical raw materials as lithium or other metals and renewable energies, such as low to mid-enthalpy geothermal energy. Geothermal systems, mostly located near plate bounda-ries, undergo strong structural controls essentially through crustal faults, also known to drain fluids. Furthermore, dissolved metals in geothermal fluids can be exploited as a byproduct in geothermal plants. In the present project we define spatial variations in metal content and the structural control in the Vall\u00e8s geothermal system and along the Vall\u00e8s Fault.<\/p>\n<p>The Vall\u00e8s Fault is a crustal fault that juxtaposes the Miocene detrital basin infill to a syn- and late-Hercynian granitic basement. With a crustal thermal anomaly, a geothermal gradient &gt;35\u00b0C\/km, several geothermal systems of low enthalpy (&lt;130\u00b0C at 1km depth) are closely associated to the Fault. These geothermal systems are revealed by several springs with temperatures ranging from 20 to 75\u00b0C (La Puda, Caldes de Montbui and La Garriga).<\/p>\n<p>This project combines hydrogeochemical, structural and petrological approaches to characterize the architecture and the relative chronology of the fracture networks of the sites of hot springs; and the metal content of thermal waters, particularly Lithium, to reconstruct the spatial evolution of the metal content of the geo-thermal fluids.<\/p>\n<p>The metal content of hot waters is low but significant to establish differences according to their structural position. Tectonic structures and surrounding lithologies seem to be decisive in water compositions.<\/p>\n<p><img decoding=\"async\" class=\"size-fusion-800 wp-image-178 aligncenter\" src=\"https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-800x568.png\" alt=\"\" width=\"800\" height=\"568\" srcset=\"https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-200x142.png 200w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-300x214.png 300w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-400x284.png 400w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-600x426.png 600w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-768x545.png 768w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9-800x568.png 800w, https:\/\/geops.geol.u-psud.fr\/br\/wp-content\/uploads\/sites\/2\/2025\/12\/Fig-projet-3-9.png 900w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: center;\">The Vall\u00e8s geothermal system and related hot springs<\/p>\n<p>&nbsp;<\/p>\n<p>Keywords: Geothermal systems, Vall\u00e8s Fault, metals, aqueous geochemistry<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Project leader<\/strong>\u00a0:\u00a0 Antonio Benedicto (de la T\u00e2che O2.3)<\/p>\n<p><strong>Funding\u00a0<\/strong>: <strong>ROCS<\/strong> &#8211; Rifting-orogeny cycles and their geologic products: multiscale investigations of mountain-basin systems and implications for geothermal resources. Projet AEDI (\u00e9quivalent d\u2019une ANR) cofinanc\u00e9 par l\u2019UE. <u>T<\/u>\u00e2che O2.3.\u00a0: \u201cStudy of spatial-temporal variability of metal content in rift faults with geothermal potential\u201d.<\/p>\n<p><strong>Staff involved at GEOPS\u00a0: <\/strong>Damien Guinoisseau<strong>, <\/strong>Gael Monvoisin<strong>, <\/strong>Agathe Julien-Sicre (Master 2)<strong>, <\/strong>Th\u00e9o Rubio (Master 2)<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Collaboration with<\/strong><\/p>\n<p>Universitat Central de Barcelone\u00a0: A. Trav\u00e9, I. Cantarero et V. Baqu\u00e9s)<\/p>\n<p>Universit\u00e9 Autonome de Barcelone\u00a0: E. Carola<\/p>\n<p>Sorbonne Universit\u00e9\u00a0: V. Plagnes<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The geothermal systems of the Vall\u00e8s Fault (NE of Spain)  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-177","post","type-post","status-publish","format-standard","hentry","category-geologie-ressource"],"_links":{"self":[{"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/posts\/177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/comments?post=177"}],"version-history":[{"count":1,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/posts\/177\/revisions"}],"predecessor-version":[{"id":179,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/posts\/177\/revisions\/179"}],"wp:attachment":[{"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/media?parent=177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/categories?post=177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/br\/wp-json\/wp\/v2\/tags?post=177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}