| Title: |
Toward 3d deep mineral imaging: CSEM, ERT, and IP strategies for depths beyond 1 km |
| Authors: |
Kim, Bitnarae; Védrine, Simon; Bretaudeau, François; Deparis, Jacques; Kamm, Jochen; Autio, Uula; Patzer, Cedric; Darnet, Mathieu |
| Contributors: |
Bureau de Recherches Géologiques et Minières (BRGM); Geological Survey of Finland = Geologian tutkimuskeskus tuottaa (GKT) |
| Source: |
Near Surface Geoscience Conference & Exhibition (EAGE Near Surface) 2025 ; https://hal.science/hal-05186376 ; Near Surface Geoscience Conference & Exhibition (EAGE Near Surface) 2025, Sep 2025, Naples (Italie), Italy |
| Publisher Information: |
CCSD |
| Publication Year: |
2025 |
| Collection: |
BRGM: HAL (Bureau de Recherches Géologiques et Minières) |
| Subject Terms: |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
| Subject Geographic: |
Naples (Italie); Italy |
| Description: |
International audience ; This study demonstrates the successful application of Controlled-Source Electromagnetics (CSEM), Electrical Resistivity Tomography (ERT) and Induced Polarization (IP) imaging to depths greater than 1.5 km at the Koillismaa Layered Intrusion Complex in Finland. The recovered resistivity and IPanomalies, interpreted as reflecting mafic-ultramafic intrusion structures, correlate well with independent borehole and gravity data.Key to this success was the careful survey planning, including background noise analysis, synthetic modeling for sensitivity evaluation, and the use of flexible nodal systems. These preparatory steps enabled optimized survey design, improved data quality, and efficient deep imaging. The unconventional array, deep focused array (DFA), configuration optimizing deep targets with nodal receivers proved effective for large-scale, deep exploration. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-05186376 |
| Accession Number: |
edsbas.A9B1E566 |
| Database: |
BASE |