Combined analysis of faults and deformation bands reveals the Cenozoic structural evolution of the southern BĂĽkk foreland (Hungary)
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Gyűjtemény: Status = Published


Type = Article
Cím:
Combined analysis of faults and deformation bands reveals the Cenozoic structural evolution of the southern BĂĽkk foreland (Hungary)
Létrehozó:
Petrik, Attila
Beke, Barbara
Fodor, László
Kiadó:
Elsevier
Dátum:
2014-10
Téma:
QE03 Geodynamics / geodinamika
QE06 Petrology. Petrography / kőzettan, petrográfia
Tartalmi leírás:
A combination of fault slip data and deformation band analysis allows the separation of 8 deformation phases
(D1–D8) in the southern foreland of the Bükk Mts., NE Hungary. The newly defined D1 phase is characterised
by NE–SW compression which is hard to integrate into the Cenozoic evolution of the area. The D2a is also a
new stress state which was a NE–SW syn-sedimentary extension of Late Oligocene age. The coeval D2b stress
state is characterised byNW–SE compression andwas responsible for the (partly syn-sedimentary) tilting and erosion
of the Oligocene sediments during Late Oligocene to earliest Miocene. D3 corresponds to E–Wcompression and
perpendicular extension. Itwas followed by NE–SW (D4) andWNW–ESE extension (D5) which corresponds to the
main rifting phases of the Pannonian Basin system from the late Early to Mid-Miocene (17.3–15Maand 15–11.6 Ma,
respectively). It was interrupted by a short inversion (D6) of NE–SW to ENE–WSW compression at latest Mid-
Miocene to earliest Late Miocene. Extension and major tilting were renewed in the early Late Miocene (D7). D8
shows NW–SE compression during latest Miocene to Pliocene when the Bükk Mts. started to be uplifted.
Deformation bands were formed during several of the established tectonic phases. Combined analysis of deformation
bands and fault slip data permitted the unraveling of the evolution of deformation bands in connection
with deformation mechanism, burial depth and cumulative displacement. We suggest that the less destructive
type of deformation bands is the oldest ones, and were formed at the shallowest burial and accumulated the
smallest total displacement. The more cataclastic the deformation bands are, the greater the total displacement
and deeper burial depth that can be observed. With progressive burial and/or displacement, deformation
bands evolved into discrete fault slip surface.
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Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
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Azonosító:
Petrik, Attila and Beke, Barbara and Fodor, László (2014) Combined analysis of faults and deformation bands reveals the Cenozoic structural evolution of the southern Bükk foreland (Hungary). Tectonophysics, 633. pp. 43-62. ISSN 0040-1951
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