Paleoflow directions of a subaqueous lahar deposit around the Miocene Keserűs Hill lava dome complex (North Hungary) as constrained by photo-statistics and anisotropy of magnetic susceptibility (AMS)

Bíró, Tamás; Karátson, Dávid; Márton, Emő; Józsa, Sándor; Bradák, Balázs

doi:10.1016/j.jvolgeores.2015.06.020

Cited by 3 publications

(2 citation statements)

References 46 publications

(63 reference statements)

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“…This method has been used previously to determine sedimentary transport direction in ignimbrites (Capaccioni & Sarocchi 1996;Capaccioni et al 1997;Biró et al 2015). The x and z directions were marked on the thin sections, so the comparison between the anisotropy principal directions and any grain fabric orientation direction was possible.…”

Section: Mineralogy and Photo-statisticsmentioning

confidence: 99%

An integrated paleomagnetic and magnetic anisotropy study of the Oligocene flysch from the Dukla nappe, Outer Western Carpathians, Poland

Kiss

Márton

Tokarski

2016

Geologica Carpathica

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Abstract:The Dukla Nappe belongs to the Outer Western Carpathians, which suffered considerable shortening due to the convergence and collision of the European and African plates. In this paper we present new paleomagnetic and magnetic anisotropy results from the Polish part of the Dukla Nappe, based on 102 individually oriented cores from nine geographically distributed localities. Susceptibility measurements and mineralogy investigations showed that paramagnetic minerals are important contributors to susceptibility anisotropy (AMS). The AMS fabrics are related to deposition/ compression (foliation) and weak tectonic deformation (lineation). The AARM fabric, that of the ferrimagnetic minerals, seems to be a less sensitive indicator of tectonic deformation than the AMS fabric. The inclination-only test points to the pre-folding age of the remanent magnetizations. Seven localities exhibit CCW rotation, a single one shows CW rotation. The CCW rotated paleomagnetic directions form two groups, one showing large, the other moderate CCW rotation. Previously published paleomagentic directions from the Slovak part of the same nappe exhibit smeared distribution between them. The declination of the overall-mean paleomagnetic direction for the Dukla nappe is similar to those observed in the neighbouring Magura and Silesian nappes, but it is of poorer quality. The AMS lineations at several localities are deviating more to the west from the present north than that of the local tectonic strikes. A possible explanation for this is that the AMS lineations were imprinted first, probably still in the Oligocene, while the sediments were soft (ductile deformation) and the folding and tilting took place during the CCW rotation.

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Section: Mineralogy and Photo-statisticsmentioning

confidence: 99%

An integrated paleomagnetic and magnetic anisotropy study of the Oligocene flysch from the Dukla nappe, Outer Western Carpathians, Poland

Kiss

Márton

Tokarski

2016

Geologica Carpathica

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“…The sedimentological analysis supported by AMS measurements has also been done in a variety of sedimentary settings, namely: deep sea fans and turbidity deposits (von Rad 1970), deep-sea mass transport deposits (Novak et al 2014), alluvial fine-grained sediments (Garcés et al 1996;Park et al 2013), pyroclastic density currents and lahar deposits (Biró et al 2015;Ort et al 2015), as well as glacial sediments (Eyles et al 1987;Gravenor & Wong 1987). In this study we aim to analyse fine-grained freshwater and terrestrial deposits of the Orava Basin (Łoziński et al 2015) focusing on both sedimentary and structural aspects of the AMS results.…”

Section: Introductionmentioning

confidence: 99%

Tectono-sedimentary analysis using the anisotropy of magnetic susceptibility: a study of the terrestrial and freshwater Neogene of the Orava Basin

Łoziński¹,

Ziółkowski²,

Wysocka³

2017

Geologica Carpathica

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Abstract:The Orava Basin is an intramontane depression filled with presumably fine-grained sediments deposited in river, floodplain, swamp and lake settings. The basin infilling constitutes a crucial record of the neoalpine evolution of the Inner/Outer Carpathian boundary area since the Neogene, when the Jurassic-Paleogene basement became consolidated, uplifted and eroded. The combination of sedimentological and structural studies with anisotropy of magnetic susceptibility (AMS) measurements provided an effective tool for recognition of terrestrial environments and deformations of the basin infilling. The lithofacies-oriented sampling and statistical approach to the large dataset of AMS specimens were utilized to define 12 AMS facies based on anisotropy degree (P) and shape (T). The AMS facies allowed a distinction of sedimentary facies ambiguous for classical methods, especially floodplain and lacustrine sediments, as well as revealing their various vulnerabilities to tectonic modification of AMS. A spatial analysis of facies showed that tuffites along with lacustrine and swamp deposits were generally restricted to marginal and southern parts of the basin. Significant deformations were noticed at basin margins and within two intrabasinal tectonic zones, which indicated the tectonic activity of the Pieniny Klippen Belt after the Middle Miocene. The large southern area of the basin recorded consistent N-NE trending compression during basin inversion. This regional tectonic rearrangement resulted in a partial removal of the southernmost basin deposits and shaped the basin's present-day extent.

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From geomorphology to shape-fabric: The interplay of geomorphological controls and their spatial variability in the Teteltzingo lahar deposit, Citlaltépetl volcano (Mexico)

Hernández-Rivas

Caballero

Sarocchi

et al. 2021

Journal of South American Earth Sciences

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Paleoflow directions of a subaqueous lahar deposit around the Miocene Keserűs Hill lava dome complex (North Hungary) as constrained by photo-statistics and anisotropy of magnetic susceptibility (AMS)

Cited by 3 publications

References 46 publications

An integrated paleomagnetic and magnetic anisotropy study of the Oligocene flysch from the Dukla nappe, Outer Western Carpathians, Poland

An integrated paleomagnetic and magnetic anisotropy study of the Oligocene flysch from the Dukla nappe, Outer Western Carpathians, Poland

Tectono-sedimentary analysis using the anisotropy of magnetic susceptibility: a study of the terrestrial and freshwater Neogene of the Orava Basin

From geomorphology to shape-fabric: The interplay of geomorphological controls and their spatial variability in the Teteltzingo lahar deposit, Citlaltépetl volcano (Mexico)

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