Seismic and electromagnetic methods for deep mineral exploration

Purpose and goal:

SEEMS DEEP (Seismic and Electromagnetic Methods for Deep mineral exploration) addresses the challenges of high costs of mineral exploration and poor success rates in discovering new deep-seated ore deposits through development of a novel workflow integrating seismic and electromagnetic (EM) geophysical methods. Thus, the project targets improved 3D imaging and geomodelling methods.

Expected results and effects:

Key innovations expected from SEEMS DEEP are related to optimized design of geophysical surveys, development of geophysical instrumentation and improved imaging. SEEMS DEEP addresses Europe’s goal for raw materials self-sufficiency and sustainability by increasing the possibilities of successful discovery of new mineral deposits at greater burial depths with lower environmental impact. Our project will help to define best practices to industry.

Approach and implementation:

Field data acquisition is planned at a magmatic complex in Finland that hosts several minerals included in the EU critical raw material list, especially battery related. We will acquire seismic profiles to obtain regional-scale geological information, while 3D seismic and EM surveys will provide detailed information about the target. A 1.7 km deep drill hole provides geological and petrophysical information, that we will use in the geophysical imaging.

Thus, the SEEMS DEEP analysis will produce high-confidence earth models that add more value than additional drill holes.