Fault damage zones can be preferential conduits for geofluids, depending on the secondary permeability developed with fracturing. Large-scale outcrop analogues allow a complete characterization of fracture networks, that cannot be satisfactorily imaged in the subsurface (e.g. with seismics). In this project we mapped fractures in the damage zone of the Victoria Fault, a major normal fault crosscutting Miocene shallow-water carbonates of Malta, combining field analysis and a high resolution photogrammetric Digital Outcrop Model (DOM). This allowed characterizing (i) the damage zone width, (ii) its spatial organization, (iii) geometrical parameters of the fracture network and (iv) its connectivity, and (v) the variability of these parameters in different stratigraphic units.

Losa, A., Martinelli, M., Bistacchi, A. (2020). Quantitative fracture characterization in the damage zone of the Victoria Fault, Malta. In EGU General Assembly 2020 [10.5194/egusphere-egu2020-22583].

Quantitative fracture characterization in the damage zone of the Victoria Fault, Malta

Losa, Anna
Primo
;
Martinelli, Mattia;Bistacchi, Andrea
2020

Abstract

Fault damage zones can be preferential conduits for geofluids, depending on the secondary permeability developed with fracturing. Large-scale outcrop analogues allow a complete characterization of fracture networks, that cannot be satisfactorily imaged in the subsurface (e.g. with seismics). In this project we mapped fractures in the damage zone of the Victoria Fault, a major normal fault crosscutting Miocene shallow-water carbonates of Malta, combining field analysis and a high resolution photogrammetric Digital Outcrop Model (DOM). This allowed characterizing (i) the damage zone width, (ii) its spatial organization, (iii) geometrical parameters of the fracture network and (iv) its connectivity, and (v) the variability of these parameters in different stratigraphic units.
No
abstract + slide
Fault damage zones ,fracture networks, shallow-water carbonates, Digital Outcrop Model (DOM);
English
EGU General Assembly 2020 4–8 May
2020
Losa, A., Martinelli, M., Bistacchi, A. (2020). Quantitative fracture characterization in the damage zone of the Victoria Fault, Malta. In EGU General Assembly 2020 [10.5194/egusphere-egu2020-22583].
Losa, A; Martinelli, M; Bistacchi, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/299836
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