Use of anisotropy of magnetic susceptibility (AMS) in the study of tsunami deposits: Application to the 2004 deposits on the eastern coast of Banda Aceh, North Sumatra, Indonesia

Wassmer, Patrick; Schneider, Jean-Luc; Fonfrège, Anne-V.; Lavigne, Franck; Paris, Raphaël; Gomez, Christopher

doi:10.1016/j.margeo.2010.06.007

Cited by 67 publications

(50 citation statements)

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“…Sediment samples were collected along outcrops for grain size, anisotropy of magnetic susceptibility and paleontological analysis (Table 1). For the anisotropy of magnetic susceptibility (AMS) and grain-size measurements, samples were collected in 2 cm-sided cubic plastic nonmagnetic boxes along the vertical sections of the outcrops, as described in Wassmer et al (2010). The anisotropy of magnetic susceptibility (AMS) was measured using a Kappabridge MFK1-A at the « Laboratoire d' Analyses des Sols et des Formations Superficielle », EOST Laboratory, University of Strasbourg.…”

Section: Methodsmentioning

confidence: 99%

“…The sedimentary records of past high energy events is becoming more and more well studied worldwide, and scientists now have access to a more accurate proxies toolkit, including sedimentological, micropalaeontological, geochronological, geophysical, and mineralogical methods (Dawson and Stewart 2007;Bourgeois 2009;Wassmer et al 2010;Chagué-Goff 2010;Keating et al 2011a;Jagodziński et al 2012;Goff et al 2012;Chagué-Goff et al 2012b). In the vicinity of Moroccan coasts, evidence of strong modern and pre-historic earthquakes and tsunamis has been found and studied in Spain, Portugal (e.g.…”

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confidence: 99%

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New sedimentary and geomorphic evidence of tsunami flooding related to an older events along the Tangier-Asilah coastal plain, Morocco

Talibi

Moussaoui

Zaghloul

et al. 2016

Geoenviron Disasters

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Background: Despite a position along the passive margin of Africa, the Moroccan Atlantic coast is under the influence of the tsunami threat from earthquakes triggered along the Nubia-Eurasia plate boundary. Along Tangier, Asilah, Sale and Mazagao's coasts, tsunami have been described since historic times. The 1755 Lisbon quake triggered a tsunami that struck the shores of Morocco 60 min after the tremor, the waves reaching from 2 to 15 m in amplitude. The coastal sedimentary record, together with other proxies, is now being experienced to discriminate and reconstruct evidence of prehistoric inundation events.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

New sedimentary and geomorphic evidence of tsunami flooding related to an older events along the Tangier-Asilah coastal plain, Morocco

Talibi

Moussaoui

Zaghloul

et al. 2016

Geoenviron Disasters

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“…Samples were collected along vertical sections into 2-cm sided boxes, as described in Wassmer et al (2010), who demonstrated that AMS can be used on unconsolidated tsunami deposits to gain information about sediment fabrics and depositional processes. Each sample was analysed in 15 directions using a Kappabridge KLY-2 in order to determine the magnitude and direction of the maximum, intermediate, and minimum AMS axes.…”

Section: Methodsmentioning

confidence: 99%

“…It has been demonstrated that the mean orientation of the grains long axes (and thus the maximum tensor axis K max ) is parallel to flow direction for moderate currents and settling from suspension (e.g. Wassmer et al 2010). For stronger currents with dominant traction (bed load), the long axis of prolate particles (and the K max ) tends to be orientated perpendicular to flow direction.…”

Section: Methodsmentioning

confidence: 99%

Coupling eruption and tsunami records: the Krakatau 1883 case study, Indonesia

et al. 2014

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“…Hawkes and Horton, 2012;May et al, 2015a, b;Williams, 2009) in a wide range of depositional settings remains crucial. Novel methods of sedimentary analysis, such as micro-computed tomography (May et al, 2015a), anisotropy of magnetic susceptibility (Schneider et al, 2014;Wassmer et al, 2010) and microfossil analysis may also assist in discriminating between the origins of different extreme wave event deposits.…”

Section: Alternative Hypothesesmentioning

confidence: 99%

A systematic review of geological evidence for Holocene earthquakes and tsunamis along the Nankai-Suruga Trough, Japan

Garrett

Fujiwara

Garrett

et al. 2016

Earth-Science Reviews

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACTThe Nankai-Suruga Trough, the subduction zone that lies immediately south of Japan's densely populated southern coastline, generates devastating great earthquakes (magnitude > 8) characterised by intense shaking, crustal deformation and tsunami generation. Forecasting the hazards associated with future earthquakes along this >700 km long fault requires a comprehensive understanding of past fault behaviour. While the region benefits from a long and detailed historical record, palaeoseismology has the potential to provide a longer-term perspective and additional crucial insights. In this paper, we summarise the current state of knowledge regarding geological evidence for past earthquakes and tsunamis along the Nankai-Suruga Trough. Incorporating literature originally published in both Japanese and English and enhancing available results with new age modelling approaches, we summarise and critically evaluate evidence from a wide variety of sources. Palaeoseismic evidence includes uplifted marine terraces and biota, marine and lacustrine turbidites, liquefaction features, subsided marshes and tsunami deposits in coastal lakes and lowlands. While 75 publications describe proposed evidence from more than 70 sites, only a limited number provide compelling, well-dated evidence. The best available records enable us to map the most likely rupture zones of twelve earthquakes that occurred during the historical period. This spatiotemporal compilation suggests that the AD 1707 earthquake ruptured almost the full length of the subduction zone and that earthquakes in AD 1361 and 684 may have been predecessors of similar magnitude. Intervening earthquakes were of lesser magnitude, highlighting the variability in rupture mode that characterises the Nankai-Suruga Trough. Intervals between ruptures of the same seismic segment range from less than 100 to more than 450 years during the historical period. Over longer timescales, palaeoseismic evidence suggests intervals between earthquakes ranging from 100 to 700 years, however these figures reflect a range of thresholds controlling the creation and preservation of evidence at any given site as well as the genuine intervals between earthquakes. At present, there is no geological data that suggest the occurrence of a larger magnitude earthquake than that experienced in AD 1707, however few studies have sought to establish the relative magnitudes of different earthquake and tsunami events along the Nankai-Suruga Trough. Alongside the lack of...

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Use of anisotropy of magnetic susceptibility (AMS) in the study of tsunami deposits: Application to the 2004 deposits on the eastern coast of Banda Aceh, North Sumatra, Indonesia

Cited by 67 publications

References 50 publications

New sedimentary and geomorphic evidence of tsunami flooding related to an older events along the Tangier-Asilah coastal plain, Morocco

New sedimentary and geomorphic evidence of tsunami flooding related to an older events along the Tangier-Asilah coastal plain, Morocco

Coupling eruption and tsunami records: the Krakatau 1883 case study, Indonesia

A systematic review of geological evidence for Holocene earthquakes and tsunamis along the Nankai-Suruga Trough, Japan

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