Petrophysical Characteristics of Naturally Deformed Rocks
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Crystallography and Physical Chemistry of Minerals & Nanominerals".
Deadline for manuscript submissions: closed (18 December 2021) | Viewed by 5516
Special Issue Editors
Interests: microtectonics; rock rheology; petrophysics
Special Issues, Collections and Topics in MDPI journals
Interests: rock magnetism; magnetic fabrics; anisotropy
Interests: petrophysics; anisotropy; petrofabric
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Petrophysical properties of rocks and their anisotropy are fundamental aspects when a comprehensive framework of rock properties is needed.
Naturally deformed rocks commonly show macroscopic fabrics characterized by typical features (e.g., CPO and SPO, microfractures, banding) that allow determining characteristics of the dominant stress field. Deformed rocks therefore represent an interesting opportunity to study tectonic processes or fluid migration.
The deformation behavior of mono- and poly- mineralic rocks is influenced by their mineralogy and modal composition, in particular the rheology contrast between weak and strong constituent minerals and their connectivity. Deformation results in mineral fabrics in rocks as it causes both shape as well as crystallographic preferred orientation of minerals. In turn, the mineral alignment in deformed rocks provides information on the conditions under which they deformed and also leads to anisotropy pore space, which affects flow properties.
Linking fabric to bulk rock properties is the aim of many studies. A fast and efficient way to assess microfabrics is via the anisotropy of physical properties (e.g., seismic velocities, magnetic susceptibility, thermal diffusivity, electrical conductivity, permeability). Anisotropy-based interpretation of deformation and flow processes requires a detailed, thorough, and quantitative understanding of the sources of the anisotropy. Based on this understanding, robust and reliable interpretations of natural rock deformation are possible. This allows a better understanding of the tectonic processes active on Earth and possibly also infers the evolution of other planets, showing traces of past deformation-related structures.
Seismic anisotropy significantly influences geophysical models of earthquake-prone areas, contributing to improve mitigation of seismic waves on buildings.
This Special Issue welcomes articles on the following main categories:
- Understanding/modeling the relationships between rock fabric and measured anisotropy and method development;
- Application of anisotropy measures to interpret geodynamics/tectonics/fluid migration;
- Correlations between different types of anisotropy.
Dr. Eugenio Fazio
Prof. Dr. Andrea R. Biedermann
Prof. Dr. Rosalda Punturo
Guest Editors
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Keywords
- Magnetic fabrics
- Seismic anisotropy
- Crystallographic preferred orientation (CPO)
- Shape preferred orientation (SPO)
- Mineral rheology
- Phase interconnectivity
- Fluid migration
- Stylolites
- Reservoir characterization
- Pores
- Permeability
- Microfractures
- Shear bands
- Synchrotron-based micro-CT imaging
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