References of "Hubert, Aurelia"
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See detailLarge earthquakes Cycles in Lake Sediments along the North Anatolian Fault, Turkey
Boës, X.; Moran, S. B.; King, J. et al

in Journal of Paleolimnology (2009), (10.1007/s10933-009-9376-x),

In 1999, the large surface-rupturing earth- quakes of Izmit and Duzce completed a 60-year cycle that included a westward migration of nine consecutive large earthquake failures ([50 km surface rupture ... [more ▼]

In 1999, the large surface-rupturing earth- quakes of Izmit and Duzce completed a 60-year cycle that included a westward migration of nine consecutive large earthquake failures ([50 km surface rupture), which started with the 1939 Erzincan earthquake in eastern Turkey. In this study, we focused on seismic cycles and seismic risk predictability along the North Anatolian Fault (NAF). Toward the west end of the NAF (26°E–32°E, i.e. Bolu), large earthquake fre- quency is measured from either historic earthquake catalogs, or geologic records from isolated outcrops and marine sediment cores from the Marmara Sea. In comparison, the eastern part of the NAF zone (32°E– 42°E) is less well documented by palaeo-seismologic archives. Thus, the sediment records of lake basins located on the eastern NAF zone constitute a unique opportunity for testing a new palaeo-seismologic approach. To this end, we used a diverse array of complementary methods involving: (1) a 600-km transect of fault-related lakes, (2) sedimentologic observations on cores from six lakes, and (3) a comparison between records of catastrophic sediment transfers in lakes (i.e. radionuclide chronomarkers and erosion tracers) and historic earthquake reports. Our study indicates that lakes along the NAF are sensitive geologic recorders of large surface-rupturing earth- quakes (surface-wave magnitude (Ms) C 6.9); smaller intensities are not recorded. The most responsive lake systems exhibit increases in sediment accumulation by a factor of [40 for a [3-m strike-slip displacement (Ms C 7). However, based on results from the 1939 Erzincan earthquake (Ms = 7.8) chronostratigraphic marker, large surface-rupturing earthquakes are detected only by certain lake records and not by others. Matching multiple lake records along the NAF pro- vides information both on the location of a surface rupture of a paleo-earthquake as well as its magnitude. Finally, the shallow lake basins along the NAF could potentially document cycles of large seismic events for at least the late Holocene. [less ▲]

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See detailA 3000-year record of ground rupturing earthquakes along the central North Anatolian Fault near Lake Ladik, Turkey
Fraser, I.; Pigati, J. S.; Hubert, Aurelia ULg et al

in Bulletin of the Seismological Society of America (2009), 99(10.1785/0120080024), 2681-2703

The North Anatolian Fault (NAF) is a ~1500-km-long, arcuate, dextral strike-slip fault zone in northern Turkey that extends from the Karliova triple junction to the Aegean Sea. East of Bolu, the fault ... [more ▼]

The North Anatolian Fault (NAF) is a ~1500-km-long, arcuate, dextral strike-slip fault zone in northern Turkey that extends from the Karliova triple junction to the Aegean Sea. East of Bolu, the fault zone exhibits evidence of a sequence of large (Mw>7) earthquakes that occurred during the 20th century that displayed a migrating earthquake sequence from east to west. Prolonged human occupation in this region provides an extensive, but not exhaustive, historical record of large earthquakes prior to the 20th century that covers much of the last 2000 years. In this study, we extend our knowledge of rupture events in the region by evaluating the stratigraphy and chronology of sediments exposed in a paleoseismic trench across a splay of the NAF at Destek, ~6.5 km east of Lake Ladik (40.868°N, 36.121°E). The trenched fault strand forms an uphill-facing scarp and associated sediment trap below a small catchment. The trench exposed a narrow fault zone that has juxtaposed a sequence of weakly-defined paleosols interbedded with colluvium against highly-fractured bedrock. We mapped magnetic susceptibility variations on the trench walls and found evidence for multiple visually unrecognized colluvial wedges. This technique was also used to constrain a predominantly dip-slip style of displacement on this fault splay. Sediments exposed in the trench were dated using both charcoal and terrestrial gastropod shells to constrain the timing of the earthquake events. While the gastropod shells consistently yielded 14C-ages that were too old (by ~900 years), we obtained highly reliable 14C-ages from the charcoal by dating multiple components of the sample material. Our radiocarbon chronology constrains the timing of seven large earthquakes over the past 3000 years prior to the 1943 Ladik earthquake, including event ages (including 2 sigma error):1437-1788AD, 1034-1321AD, 549-719AD, 17-585AD (1-3 events), 351BC-28AD, 700-392BC, 912-596BC. Our results indicate an average inter-event time of 385±166yrs (1 sigma) [less ▲]

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See detailSedimentological fingerprints of recent earthquakes in lake sediments: A case study on the North Anatolian Fault (NAF), Turkey
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1919

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See detailLake Hazar: a potential high-resolution 150 ka record of climate and tectonic interactions in Anatolia.
Boes, Xavier; Garcia, D; Avsar, U et al

in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1942

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See detailDefining additional stratigraphy in paleosismic trenches by 2D logging of magnetic susceptibility. A paleoseismic investigation near Lake Ladik, North Anatolian Fault, Turkey.
Fraser, J; Hubert, Aurelia ULg; Vanneste, K. et al

in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1942

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See detailKuzey Anadolu Fayı Üzerinde Yer Alan Sığ Göllerde Tarihsel Depremlerin Sedimantolojik İzlerinin Araştırılması
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

Conference (2008, November)

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See detailSeismic patterns of the Anatolian fault system (Turkey)
Hubert, Aurelia ULg; Fraser, J.; Boes, X et al

Conference (2008, November)

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See detailStructure and evolution of a main segment boundary along the East Anatolian fault, Turkey 2008
Garcia-Moreno, D.; Hubert, Aurelia ULg; Moernaut, J et al

Conference (2008, November)

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See detailSedimentological traces of earthquakes in recent lakes sediments along the North Anatolian Fault, Turkey
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

Conference (2008, October)

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See detailThe Hazar pull-apart along the East Anatolian Fault: Structure and active deformation
Garcia Moreno, David; Hubert, Aurelia ULg; Moernaut, J et al

in Geophysical Research Abstracts (2008, April), 10

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See detailRadionuclide profiles and recent earthquakes history of Lake Hazar Pull-apart basin (East Anatolian Fault, Turkey)
Boes, Xavier; Moran, B.; Kelly, R. et al

in Geophysical Research Abstracts (2008, April), 10

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See detailTraces of the last earthquake sequence (1939-1944) along NAF from lacustrine sediments
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

in Geophysical Research Abstracts (2008, April), 10

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See detailA 3000 year chronology of North Anatolian Fault ruptures, utilizing magnetic susceptibility trench logging, near Lake Ladik, Turkey
Fraser, J; Pigati, J; Hubert, Aurelia ULg et al

in Geophysical Research Abstracts (2008, April), 10

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See detailThe Hazar pull-apart along the East Anatolian Fault: Structure and active deformation
Hubert, Aurelia ULg; Garcia, D; Moernaut, J et al

Conference (2008, January)

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See detailLong-term evolution of the North Anatolian fault (Turkey)
Hubert, Aurelia ULg; Van Der Woerd, J.; King, G. et al

in Geological Society of London (Special publication : Geodynamics of Collision and Collapse at the Africa-Arabia-Eurasia Subduction Zone, Editor R. Govers) (2008)

The deformation and 40Ar-39Ar dating of recent volcanism that remarkably sits across the North Anatolian Fault eastern termination in Turkey, together with previous studies, put strong constraints on the ... [more ▼]

The deformation and 40Ar-39Ar dating of recent volcanism that remarkably sits across the North Anatolian Fault eastern termination in Turkey, together with previous studies, put strong constraints on the long- term evolution of the fault. We argue that after a first phase of 10 Ma, characterized by a slip rate of about 3 mm/yr, and during which most of the trace was established, the slip rate jumped to about 20 mm/yr on average over the last 2.5 Ma, without substantial increase of the fault length. The transition correlates with a change in the geometry at the junction with the East Anatolian Fault that makes the extrusion process more efficient. [less ▲]

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See detailAssessment of Lake Sediment Sensitivity along the North Anatolian Fault
Boes, Xavier; Ulas, Avsar; King, J et al

Conference (2007, October)

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See detailAssessment of Lake Sediment Sensitivity to Earthquakes and Climate Cycles along the North Anatolian Fault,
Boes, Xavier; Avsar, Ulas; Doner, L. et al

Conference (2007, July)

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See detailPotential of Shallow Lake Systems to Trace Environmental Changes Caused by Earthquakes
Avsar, Ulas; Boes, X; Hubert, Aurelia ULg et al

in Geophysical Research Abstracts (2007, April), 9

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See detailUnderstanding the irregularity of Seismic cycles: A Case study in Turkey-A Marie Curie Excellence Team Project
Hubert, Aurelia ULg; Boes, X; Fraser, J et al

in Geophysical Research Abstracts (2007, April), 9

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