Advancements in Magnetic Field Methods and Natural Resources Exploration
A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Geophysics".
Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 3796
Special Issue Editors
Interests: applied geophysics; potential field data analysis and modeling; remote sensing
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Geophysical exploration methods play a key role in natural resources studies. The role of these methods is to provide valuable information on the type, shape, size, and depth of the geological structures constituting the natural-resources reservoirs. They also yield information on the geometry and type of fractures where oil, gasses, water and geothermal fluids circulate.
Magnetic exploration methods provide insights for a better understanding of the geologic, structural and geothermal characteristics of an area. This is particularly true for volcanic and sedimentary zones, where recent deposits often cover important structures. In those cases, magnetic methods can locate buried structures such as lineaments, faults, reservoirs and magmatic structures. This is possible thanks to the existence of susceptibility contrasts between the cover soil and the buried structures that often causes detectable anomalies.
In past decades, magnetic surveying had become popular as one of the most effective techniques supporting seismic methods in natural resources exploration. Indeed, magnetic methods are now standard in the pre-drilling phase to identify areas of interest and estimate size and location of reservoirs.
Innovation involves the development of new measurement techniques, including new instruments, new interpretative methods (analysis, imaging and inversion of data, including large scale methods) and new areas of exploration such as Deep-Sea Mining.
Recently, great advances were made in signal enhancement and edge analysis of potential field anomalies, thanks to methods allowing a suitable differentiation of the field without making the process unstable. New three-dimensional (3D) imaging techniques provide an estimate of the magnetization distribution within the underground by means of high-resolution images of the source distribution. Most of these methods are fast and reliable in the presence of shallow and compact sources. In the presence of deep/complex sources, the resolution of the intepretative models is reduced. Nevertheless, great effort was spent by the scientific community to overcome problems causing low signal-to-noise ratio in the measurements and to improve depth resolution in the quantitative interpretation of magnetic souces.
The aim of this Special Issue of Geosciences is to showcase the latest developments in the field of exploration of natural resources by magnetic methods, with emphasis on advancements in exploration and interpretation techniques. We specifically invite contributions addressing the following aspects:
- Methods for Magnetic Data Processing included Noise Removal;
- Methods for Signal Enhancement;
- Imaging and Inversion Techniques;
- Significant Case Studies in Natural Resources Exploration (oil, gas, water, geothermal reservoirs).
Dr. Valeria Paoletti
Mag. Ingrid Schattauer
Guest Editors
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Keywords
- Advanced Processing and Interpretation Methods for Magnetometric Data
- Noise Removal Techniques
- Signal Enhancement and Source Edge Detection Methods
- 3D Imaging and Inversion for Natural Resources Exploration
