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Integrating earthquake-based passive seismic methods in mineral exploration: Case study from the Gerolekas bauxite mining area, Greece
Towards adapting reverse vertical seismic profiling for ambient-noise imaging with transient sources: Automatic estimation of stationary-phase receivers for improved retrieval of the interferometric Green’s function
Unsupervised Learning Used in Automatic Detection and Classification of Ambient‐Noise Recordings from a Large‐ N Array
Automatic 3D illumination-diagnosis method for large- N arrays: Robust data scanner and machine-learning feature provider
To: “Results of the downhole microseismic monitoring at a pilot hydraulic fracturing site in Poland — Part 1: Event location and stimulation performance,” Wojciech Gajek, Jacek Trojanowski, Michał Malinowski, Marek Jarosiński, and Marko Riedel, Interpretation , 6 , no. 3, SH39–SH48, http://dx.doi.org/10.1190/int-2017-0205.1.
Introduction to special section: Characterization of potential Lower Paleozoic shale resource play in Poland
Results of downhole microseismic monitoring at a pilot hydraulic fracturing site in Poland — Part 2: S-wave splitting analysis
Results of the downhole microseismic monitoring at a pilot hydraulic fracturing site in Poland — Part 1: Event location and stimulation performance
Seismic azimuthal anisotropy study of the Lower Paleozoic shale play in northern Poland
Brittleness prediction for the Lower Paleozoic shales in northern Poland
ABSTRACT For the first time, modern seismic reflection data along with gravity and magnetic data were used to image the structure of a fold-and-thrust belt overlying the SW margin of the East European craton in SE Poland. These data demonstrate that the Variscan orogen extends eastward much farther than previously believed and terminates against the East European craton basement slope. The structural setting of this newly documented eastern extension of the Variscan fold-and-thrust belt in SE Poland is comparable to that of the Alleghanian orogen emplaced on the margin of the North American craton. Variscan deformation documented in SE Poland is more intense than anywhere else beneath the Permian–Mesozoic German-Polish Basin east of the Harz Mountains, probably because of buttressing by the relatively shallow basement of the East European craton. Our study focused on two regional tectonic units: (1) the Radom-Kraśnik block, a NW-SE–elongated structural high where early Paleozoic to Devonian strata subcrop beneath the Permian–Mesozoic cover, and (2) the Lublin Basin, a major Paleozoic sedimentary basin developed above the SW slope of the East European craton. The seismic data image the Radom-Kraśnik block as a thin-skinned fold-and-thrust belt with a 10–12-km-thick pile of Ediacaran (?) to Devonian sediments tectonically emplaced on the margin of the East European craton. These sediments are involved in a NNE-vergent stack of thrust units striking oblique to the East European craton margin slope. Individual thrusts branch off from a basal detachment that is located in the basal part of Ediacaran sediments unconformably overlying the East European craton crystalline basement. The frontal part of the Radom-Kraśnik fold-and-thrust belt is a triangle zone related to the jump of the basal detachment from the intra-Ediacaran position to the base of the Silurian shales. The base-Silurian detachment continues under the gently folded Lublin Basin and emerges along the Kock fault zone, which is a thin-skinned ramp placed over a basement step at depth. The Kock fault zone could be considered an analogue to the so-called mushwad structures described within the frontal part of the Appalachians.