First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications
The Laopanga hot spring deposits along the “Cameroon Volcanic Line” (CVL) are distinctive in being both siliceous sinter and travertine, made up of immature amorphous silica and mainly calcite, and associated with detrital deposits such as claystone, sandstone and conglomerate. Their age range from...
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Académie des sciences
2023-09-01
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| Series: | Comptes Rendus. Géoscience |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.230/ |
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| author | Tchouatcha, Milan Stafford Kouske, Arnaud Patrice Tamfuh, Primus Azinwi Préat, Alain Toyama, René Feumba, Roger Tiokeng Ngounfack, Vannelle Madjingain, Vivant Konglim, Yaya Berinyuy Tchameni, Rigobert |
| author_facet | Tchouatcha, Milan Stafford Kouske, Arnaud Patrice Tamfuh, Primus Azinwi Préat, Alain Toyama, René Feumba, Roger Tiokeng Ngounfack, Vannelle Madjingain, Vivant Konglim, Yaya Berinyuy Tchameni, Rigobert |
| author_sort | Tchouatcha, Milan Stafford |
| collection | DOAJ |
| description | The Laopanga hot spring deposits along the “Cameroon Volcanic Line” (CVL) are distinctive in being both siliceous sinter and travertine, made up of immature amorphous silica and mainly calcite, and associated with detrital deposits such as claystone, sandstone and conglomerate. Their age range from Plio-Pleistocene to Actual. Sr concentrations (17 to 2304 ppm) suggest an enrichment by epithermal outflows. $\delta ^{13}\mathrm{C}$ and ${\delta }^{18}\mathrm{O}$ values, ranging respectively from 1.5‰ to 2.9‰ V-PDB and ${-}$10.1‰ to ${-}$6‰ V-PDB, reflect a high temperature of the parent solution (40 °C) related to an elevated geothermal gradient. The europium anomalies values (Eu/Eu*: 0.54–1.78) indicate the temperature variation of precipitated deposits related to distance of the deep hot water flow. The chemical compositions of the lithofacies show the diversity of the spring deposits related to complex phenomena of internal migration of mineralized hot water and the tectonic controls during the Precambrian fault reactivations. |
| format | Article |
| id | doaj-art-5e6aec5d31dd4d128f99da0c20f356bd |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-5e6aec5d31dd4d128f99da0c20f356bd2025-02-07T10:40:42ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252023-09-01355G227929810.5802/crgeos.23010.5802/crgeos.230First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implicationsTchouatcha, Milan Stafford0https://orcid.org/0000-0003-2693-1084Kouske, Arnaud Patrice1Tamfuh, Primus Azinwi2Préat, Alain3Toyama, René4Feumba, Roger5Tiokeng Ngounfack, Vannelle6Madjingain, Vivant7Konglim, Yaya Berinyuy8Tchameni, Rigobert9Department of Earth Sciences, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, CameroonUniversity Institute of Technology, University of Douala, P.O. Box 8698, Douala, CameroonDepartment of Mining and Mineral Engineering, National Higher Polytechnic Institute, University of Bamenda, P.O. Box 39, Bambili, Cameroon; Department of Soil Science, Faculty of Agronomy and Agricultural Sciences, University of Dschang, P.O. Box 222, Dschang, CameroonRes. Grp. - Biogeochemistry and Modeling of the Earth System - Sedimentology and Basin Analysis, University of Brussels, Av. F-D Roosevelt 50, B-1050, Brussels, BelgiumDepartment of Earth Sciences, Faculty of Science, University of Bangui, P.O. Box 908, Bangui, Central African RepublicDepartment of Earth Sciences, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, CameroonDepartment of Earth Sciences, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, CameroonDepartment of Earth Sciences, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, CamerounDepartment of Earth Sciences, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, CameroonDepartment of Earth Sciences, Faculty of Science, University of Ngaoundéré, P.O. Box 454, Ngaoundéré, CamerounThe Laopanga hot spring deposits along the “Cameroon Volcanic Line” (CVL) are distinctive in being both siliceous sinter and travertine, made up of immature amorphous silica and mainly calcite, and associated with detrital deposits such as claystone, sandstone and conglomerate. Their age range from Plio-Pleistocene to Actual. Sr concentrations (17 to 2304 ppm) suggest an enrichment by epithermal outflows. $\delta ^{13}\mathrm{C}$ and ${\delta }^{18}\mathrm{O}$ values, ranging respectively from 1.5‰ to 2.9‰ V-PDB and ${-}$10.1‰ to ${-}$6‰ V-PDB, reflect a high temperature of the parent solution (40 °C) related to an elevated geothermal gradient. The europium anomalies values (Eu/Eu*: 0.54–1.78) indicate the temperature variation of precipitated deposits related to distance of the deep hot water flow. The chemical compositions of the lithofacies show the diversity of the spring deposits related to complex phenomena of internal migration of mineralized hot water and the tectonic controls during the Precambrian fault reactivations.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.230/Plio-pleistocene to actualCameroon volcanic lineLaopanga basinCentral Cameroon shear zonePrecambrian fault |
| spellingShingle | Tchouatcha, Milan Stafford Kouske, Arnaud Patrice Tamfuh, Primus Azinwi Préat, Alain Toyama, René Feumba, Roger Tiokeng Ngounfack, Vannelle Madjingain, Vivant Konglim, Yaya Berinyuy Tchameni, Rigobert First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications Comptes Rendus. Géoscience Plio-pleistocene to actual Cameroon volcanic line Laopanga basin Central Cameroon shear zone Precambrian fault |
| title | First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications |
| title_full | First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications |
| title_fullStr | First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications |
| title_full_unstemmed | First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications |
| title_short | First evidence of sinter and travertine in Cameroon: fault reactivation and geothermal implications |
| title_sort | first evidence of sinter and travertine in cameroon fault reactivation and geothermal implications |
| topic | Plio-pleistocene to actual Cameroon volcanic line Laopanga basin Central Cameroon shear zone Precambrian fault |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.230/ |
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