Mathieu Darnet
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View article: 3D Geoelectrical Imaging Beyond 1 km Depth for Mineral Exploration: Framework of Deep Electrical Resistivity Tomography and Induced Polarization with Advanced Strategies
3D Geoelectrical Imaging Beyond 1 km Depth for Mineral Exploration: Framework of Deep Electrical Resistivity Tomography and Induced Polarization with Advanced Strategies Open
Summary Direct Current Electrical Resistivity Tomography (ERT) is a widely used geophysical method for near-surface investigations, offering high-resolution imaging for geological, engineering, and environmental applications. While traditi…
View article: Ground electrical and electromagnetic methods for deep mineral exploration -- results from the SEEMS DEEP project
Ground electrical and electromagnetic methods for deep mineral exploration -- results from the SEEMS DEEP project Open
The transition towards carbon neutral transportation and energy sources increases the global demand for mineral raw materials while easy-to-find near-surface (\< 200 m) ore deposits are unlikely discovered in well-explored areas such as Eu…
View article: Rock Mineral Volume Inversion Using Statistical and Machine Learning Algorithms for Enhanced Geothermal Systems in Upper Rhine Graben, Eastern France
Rock Mineral Volume Inversion Using Statistical and Machine Learning Algorithms for Enhanced Geothermal Systems in Upper Rhine Graben, Eastern France Open
Accurately determining the mineralogical composition of rocks is essential for precise assessments of key petrophysical properties like effective porosity, water saturation, clay volume, and permeability. Mineral volume inversion is partic…
View article: Measuring Induced Polarization signals from deep seated magma chamber &#8211; preliminary results from a pilot survey in Finland
Measuring Induced Polarization signals from deep seated magma chamber – preliminary results from a pilot survey in Finland Open
In this study, we conducted an extensive geophysical survey to explore the potential of electrical resistivity methods in delineating deep ore deposits within between Koillismaa Intrusion and Näränkävaara intrusion, northeas…
View article: Towards the imaging of deep land ore deposits with ERT-IP method – first results from a demonstration survey in Finland
Towards the imaging of deep land ore deposits with ERT-IP method – first results from a demonstration survey in Finland Open
In this study, we conducted a comprehensive geophysical survey near Kuusamo (Finland) to assess the potential of electrical resistivity methods in delineating mineral deposits at depths greater than 1 km. Preliminary investigations, includ…
View article: Towards a Multi-Physics Multi-Scale Approach of Deep Geothermal Exploration
Towards a Multi-Physics Multi-Scale Approach of Deep Geothermal Exploration Open
A wide range of geophysical methods is used for the exploration of deep\ngeothermal resources. It aimsat characterizing the deep fractured network and\nits capacity for fluid/heat extraction. This relieshowever on the capacity of\ngeophysi…
View article: Mapping the geometry of volcanic systems with magnetotelluric soundings: results from a land and marine magnetotelluric survey performed during the 2018-2019 Mayotte seismovolcanic crisis
Mapping the geometry of volcanic systems with magnetotelluric soundings: results from a land and marine magnetotelluric survey performed during the 2018-2019 Mayotte seismovolcanic crisis Open
International audience
View article: Combiner les méthodes MT, CSEM et AEM pour l’exploration d’énergie géothermique haute enthalpie en contexte volcanique insulaire
Combiner les méthodes MT, CSEM et AEM pour l’exploration d’énergie géothermique haute enthalpie en contexte volcanique insulaire Open
View article: Inversion quantitative de donnée sismique ancienne pour la caractérisation de la ressource géothermale dans le Bassin de Paris
Inversion quantitative de donnée sismique ancienne pour la caractérisation de la ressource géothermale dans le Bassin de Paris Open
International audience
View article: Geophysical signature of the transition zone between the sedimentary cover and the basement from an analogue of the Rhine Graben
Geophysical signature of the transition zone between the sedimentary cover and the basement from an analogue of the Rhine Graben Open
View article: Characterizing deep hydrothermal fluid circulation in the Upper Rhine Graben (France) with electromagnetic methods
Characterizing deep hydrothermal fluid circulation in the Upper Rhine Graben (France) with electromagnetic methods Open
International audience
View article: Time-lapse resistivity imaging: CSEM-data 3-D double-difference inversion and application to the Reykjanes geothermal field
Time-lapse resistivity imaging: CSEM-data 3-D double-difference inversion and application to the Reykjanes geothermal field Open
SUMMARY Time-lapse resistivity tomography bring valuable information on the physical changes occurring inside a geological reservoir. In this study, resistivity monitoring from controlled source electromagnetics (CSEM) data is investigated…
View article: Exploring geothermal resources using active and passive EM methods in the coastal areas of volcanic islands
Exploring geothermal resources using active and passive EM methods in the coastal areas of volcanic islands Open
<p>Electromagnetic geophysical exploration plays a key role in high-temperature geothermal projects to estimate the geothermal potential of a region. The objective of an EM campaign applied to high-temperature geothermal exploration …
View article: Mapping the geometry of volcanic systems with magnetotelluric soundings: Results from a land and marine magnetotelluric survey performed during the 2018–2019 Mayotte seismovolcanic crisis
Mapping the geometry of volcanic systems with magnetotelluric soundings: Results from a land and marine magnetotelluric survey performed during the 2018–2019 Mayotte seismovolcanic crisis Open
View article: The 2018-2019 Mayotte volcano-tectonic crisis: insights from electromagnetic experiments
The 2018-2019 Mayotte volcano-tectonic crisis: insights from electromagnetic experiments Open
<p>Since May 2018, the Mayotte Island (Comoros archipelago) is ongoing the largest basaltic eruption of the three last centuries, with up to several km3 deduced from modeling and direct seafloor observations. During this volcano tect…
View article: An Analogue Approach to Characterize the Basement-Sediment Transition Zone as a Geothermal Reservoir
An Analogue Approach to Characterize the Basement-Sediment Transition Zone as a Geothermal Reservoir Open
International audience
View article: Advances on Electro-Magnetic Imaging for De-Risking Enhanced Geothermal System Prospects
Advances on Electro-Magnetic Imaging for De-Risking Enhanced Geothermal System Prospects Open
Exploiting geothermal resources at temperatures between 120 and 200°C in sedimentary and basement rocks, in rifts or in flexural basins, to produce electricity or heat is now possible because of the development of Enhanced Geothermal Syste…
View article: Defining best practices in the management of geothermal exploration data
Defining best practices in the management of geothermal exploration data Open
The objective of this work is to define best practices in the management of\ngeothermal exploration data. This study builds on a questionnaire to survey the\ngeothermal data management practices in mature geothermal markets. The inquiry\nt…
View article: Airborne and land-based electromagnetic (CSEM and MT) surveying for geothermal exploration in the Martinique island
Airborne and land-based electromagnetic (CSEM and MT) surveying for geothermal exploration in the Martinique island Open
Exploring for geothermal resources using land-based electromagnetic methods can be very challenging due to the presence of strong human-generated and "geological" noise. In such context, some passive EM techniques like the Magneto-Telluric…
View article: Imaging and monitoring the Reykjanes supercritical geothermal reservoir in Iceland with time-lapse CSEM and MT measurements
Imaging and monitoring the Reykjanes supercritical geothermal reservoir in Iceland with time-lapse CSEM and MT measurements Open
We have investigated the benefits and drawbacks of active EM surveying (Controlled-Source EM or CSEM) for monitoring geothermal reservoirs in the presence of strong industrial noise with an actual time-lapse survey over the Reykjanes geoth…
View article: Geophysical signature of the transition zone between the sedimentary\n cover and the basement: an analogue approach to help de-risking geothermal\n prospects
Geophysical signature of the transition zone between the sedimentary\n cover and the basement: an analogue approach to help de-risking geothermal\n prospects Open
Within the frame of the ANR-funded CANTARE-Alsace project, we have undertaken\na multi-scale and multidisciplinary approach to increase our knowledge of the\ntransition zone between the sedimentary cover and the basement and provide\nfunda…
View article: Geophysical signature of the transition zone between the sedimentary cover and the basement: an analogue approach to help de-risking geothermal prospects
Geophysical signature of the transition zone between the sedimentary cover and the basement: an analogue approach to help de-risking geothermal prospects Open
Within the frame of the ANR-funded CANTARE-Alsace project, we have undertaken a multi-scale and multidisciplinary approach to increase our knowledge of the transition zone between the sedimentary cover and the basement and provide fundamen…
View article: Multimodal geothermal exploration in the Lesser Antilles Arc at the Lamentin lowland (Martinique)
Multimodal geothermal exploration in the Lesser Antilles Arc at the Lamentin lowland (Martinique) Open
The aim of the last geothermal exploration campaign at the Lamentin lowland (Martinique) was to specify the characteristics and the extent of the local geothermal system. In this purpose, previous data were re-processed and new field data …
View article: Construction d'un modèle géologique des réservoirs karstiques profonds du Bassin de Thau (sud de la France) : un outil innovant pour la gestion de la ressource en eau
Construction d'un modèle géologique des réservoirs karstiques profonds du Bassin de Thau (sud de la France) : un outil innovant pour la gestion de la ressource en eau Open
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View article: Un modèle géologique 3D pour l'exploration géothermique de la plaine du Lamentin (Martinique) : impact de la structuration géologique profonde sur les circulations de fluides hydrothermaux
Un modèle géologique 3D pour l'exploration géothermique de la plaine du Lamentin (Martinique) : impact de la structuration géologique profonde sur les circulations de fluides hydrothermaux Open
International audience
View article: Resistivity imaging of an analogue of the transition zone between the sedimentary cover and the basement of deep sedimentary basin for geothermal exploitation in Alsace
Resistivity imaging of an analogue of the transition zone between the sedimentary cover and the basement of deep sedimentary basin for geothermal exploitation in Alsace Open
International audience
View article: Is the basement-sediment transition zone in the Rhine graben a good geothermal reservoir? An analogue approach in the CANTARE-Alsace project
Is the basement-sediment transition zone in the Rhine graben a good geothermal reservoir? An analogue approach in the CANTARE-Alsace project Open
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View article: Monitoring geothermal reservoir developments with the Controlled-Source Electro-Magnetic method — A calibration study on the Reykjanes geothermal field
Monitoring geothermal reservoir developments with the Controlled-Source Electro-Magnetic method — A calibration study on the Reykjanes geothermal field Open
View article: Resistivity imaging of an analogue of the transition zone between the sedimentary cover and the basement of deep sedimentary basin for geothermal exploitation
Resistivity imaging of an analogue of the transition zone between the sedimentary cover and the basement of deep sedimentary basin for geothermal exploitation Open
International audience
View article: Imaging the resistivity structure of the Reykjanes high-enthalpy geothermal field with the Controlled-Source Electro-Magnetic method
Imaging the resistivity structure of the Reykjanes high-enthalpy geothermal field with the Controlled-Source Electro-Magnetic method Open
International audience