Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium)

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Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium). / Verbeeck, Koen; Wouters, Laurent; Vanneste, Kris; Camelbeeck, Thierry; Vandenberghe, Dimitri; Beerten, Koen; Rogiers, Bart; Schiltz, Marco; Burow, Christoph; Mees, Florias; De Grave, Johan; Vandenberghe, Noël.

In: Tectonophysics, Vol. 699, 15.03.2017, p. 146–163.

Research output: Contribution to journalArticlepeer-review

Harvard

Verbeeck, K, Wouters, L, Vanneste, K, Camelbeeck, T, Vandenberghe, D, Beerten, K, Rogiers, B, Schiltz, M, Burow, C, Mees, F, De Grave, J & Vandenberghe, N 2017, 'Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium)', Tectonophysics, vol. 699, pp. 146–163. https://doi.org/10.1016/j.tecto.2017.01.023

APA

Verbeeck, K., Wouters, L., Vanneste, K., Camelbeeck, T., Vandenberghe, D., Beerten, K., Rogiers, B., Schiltz, M., Burow, C., Mees, F., De Grave, J., & Vandenberghe, N. (2017). Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium). Tectonophysics, 699, 146–163. https://doi.org/10.1016/j.tecto.2017.01.023

Vancouver

Verbeeck K, Wouters L, Vanneste K, Camelbeeck T, Vandenberghe D, Beerten K et al. Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium). Tectonophysics. 2017 Mar 15;699:146–163. https://doi.org/10.1016/j.tecto.2017.01.023

Author

Verbeeck, Koen ; Wouters, Laurent ; Vanneste, Kris ; Camelbeeck, Thierry ; Vandenberghe, Dimitri ; Beerten, Koen ; Rogiers, Bart ; Schiltz, Marco ; Burow, Christoph ; Mees, Florias ; De Grave, Johan ; Vandenberghe, Noël. / Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium). In: Tectonophysics. 2017 ; Vol. 699. pp. 146–163.

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@article{4fc6beaec65f475eaf968d46748945aa,
title = "Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium)",
abstract = "Our knowledge about large earthquakes in stable continental regions comes fromstudies of faults that generated historical surface rupturing earthquakes or were identified by their recent imprint in the morphology. Here, we evaluate the co-seismic character and movement history of the Rauw fault in Belgium, which lacks geomorphological expression and historical/present seismicity. This 55-km-long normal fault, with known Neogene and possibly Early Pleistocene activity, is the largest offset fault west of the active Roer Valley Graben. Its trace was identified in the shallow subsurface based on high resolution geophysics. All the layers within the Late Pliocene Mol Formation (3.6 to 2.59 Ma) are displaced 7 m vertically, without growth faulting, but deeper deposits show increasing offset. A paleoseismic trench study revealed cryoturbated, but unfaulted, late glacial coversands overlying faulted layers of Mol Formation. In-between those deposits, the fault tip was eroded, along with evidence for individual displacement events. Fragmented clay gouge observed in a micromorphology sample of the main fault evidences co-seismic faulting, as opposed to fault creep. Based on optical and electron spin resonance dating and trench stratigraphy, the 7 m combined displacement is bracketed to have occurred between 2.59Ma and 45 ka. The regional presence of the Sterksel Formation alluvial terrace deposits, limited to the hanging wall of the Rauw fault, indicates a deflection of the Meuse/Rhine confluence (1.0 to 0.5 Ma) by the fault's activity, suggesting that most of the offset occurred prior to/at this time interval. In the trench, Sterksel Formation is eroded but reworked gravel testifies for its former presence. Hence, the Rauw fault appears as typical of plate interior context, with an episodic seismic activity concentrated between 1.0 and 0.5 Ma or at least between 2.59 Ma to 45 ka, possibly related to activity variations in the adjacent, continuously active Roer Valley Graben.",
keywords = "Paleoseismology, stable continental region, Rauw fault, Campine Basin, optical dating, electron spin resonance dating",
author = "Koen Verbeeck and Laurent Wouters and Kris Vanneste and Thierry Camelbeeck and Dimitri Vandenberghe and Koen Beerten and Bart Rogiers and Marco Schiltz and Christoph Burow and Florias Mees and {De Grave}, Johan and No{\"e}l Vandenberghe",
note = "score=10",
year = "2017",
month = mar,
day = "15",
doi = "10.1016/j.tecto.2017.01.023",
language = "English",
volume = "699",
pages = "146–163",
journal = "Tectonophysics",
issn = "0040-1951",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium)

AU - Verbeeck, Koen

AU - Wouters, Laurent

AU - Vanneste, Kris

AU - Camelbeeck, Thierry

AU - Vandenberghe, Dimitri

AU - Beerten, Koen

AU - Rogiers, Bart

AU - Schiltz, Marco

AU - Burow, Christoph

AU - Mees, Florias

AU - De Grave, Johan

AU - Vandenberghe, Noël

N1 - score=10

PY - 2017/3/15

Y1 - 2017/3/15

N2 - Our knowledge about large earthquakes in stable continental regions comes fromstudies of faults that generated historical surface rupturing earthquakes or were identified by their recent imprint in the morphology. Here, we evaluate the co-seismic character and movement history of the Rauw fault in Belgium, which lacks geomorphological expression and historical/present seismicity. This 55-km-long normal fault, with known Neogene and possibly Early Pleistocene activity, is the largest offset fault west of the active Roer Valley Graben. Its trace was identified in the shallow subsurface based on high resolution geophysics. All the layers within the Late Pliocene Mol Formation (3.6 to 2.59 Ma) are displaced 7 m vertically, without growth faulting, but deeper deposits show increasing offset. A paleoseismic trench study revealed cryoturbated, but unfaulted, late glacial coversands overlying faulted layers of Mol Formation. In-between those deposits, the fault tip was eroded, along with evidence for individual displacement events. Fragmented clay gouge observed in a micromorphology sample of the main fault evidences co-seismic faulting, as opposed to fault creep. Based on optical and electron spin resonance dating and trench stratigraphy, the 7 m combined displacement is bracketed to have occurred between 2.59Ma and 45 ka. The regional presence of the Sterksel Formation alluvial terrace deposits, limited to the hanging wall of the Rauw fault, indicates a deflection of the Meuse/Rhine confluence (1.0 to 0.5 Ma) by the fault's activity, suggesting that most of the offset occurred prior to/at this time interval. In the trench, Sterksel Formation is eroded but reworked gravel testifies for its former presence. Hence, the Rauw fault appears as typical of plate interior context, with an episodic seismic activity concentrated between 1.0 and 0.5 Ma or at least between 2.59 Ma to 45 ka, possibly related to activity variations in the adjacent, continuously active Roer Valley Graben.

AB - Our knowledge about large earthquakes in stable continental regions comes fromstudies of faults that generated historical surface rupturing earthquakes or were identified by their recent imprint in the morphology. Here, we evaluate the co-seismic character and movement history of the Rauw fault in Belgium, which lacks geomorphological expression and historical/present seismicity. This 55-km-long normal fault, with known Neogene and possibly Early Pleistocene activity, is the largest offset fault west of the active Roer Valley Graben. Its trace was identified in the shallow subsurface based on high resolution geophysics. All the layers within the Late Pliocene Mol Formation (3.6 to 2.59 Ma) are displaced 7 m vertically, without growth faulting, but deeper deposits show increasing offset. A paleoseismic trench study revealed cryoturbated, but unfaulted, late glacial coversands overlying faulted layers of Mol Formation. In-between those deposits, the fault tip was eroded, along with evidence for individual displacement events. Fragmented clay gouge observed in a micromorphology sample of the main fault evidences co-seismic faulting, as opposed to fault creep. Based on optical and electron spin resonance dating and trench stratigraphy, the 7 m combined displacement is bracketed to have occurred between 2.59Ma and 45 ka. The regional presence of the Sterksel Formation alluvial terrace deposits, limited to the hanging wall of the Rauw fault, indicates a deflection of the Meuse/Rhine confluence (1.0 to 0.5 Ma) by the fault's activity, suggesting that most of the offset occurred prior to/at this time interval. In the trench, Sterksel Formation is eroded but reworked gravel testifies for its former presence. Hence, the Rauw fault appears as typical of plate interior context, with an episodic seismic activity concentrated between 1.0 and 0.5 Ma or at least between 2.59 Ma to 45 ka, possibly related to activity variations in the adjacent, continuously active Roer Valley Graben.

KW - Paleoseismology

KW - stable continental region

KW - Rauw fault

KW - Campine Basin

KW - optical dating

KW - electron spin resonance dating

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/24262874

U2 - 10.1016/j.tecto.2017.01.023

DO - 10.1016/j.tecto.2017.01.023

M3 - Article

VL - 699

SP - 146

EP - 163

JO - Tectonophysics

JF - Tectonophysics

SN - 0040-1951

ER -

ID: 2476907