2015
DOI: 10.1016/j.jvolgeores.2014.11.008
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Eifel maars: Quantitative shape characterization of juvenile ash particles (Eifel Volcanic Field, Germany)

Abstract: The Eifel region in western central Germany is the type locality for maar volcanism, which is classically interpreted to be the result of explosive eruptions due to shallow interaction between magma and external water (i.e. phreatomagmatic eruptions). Sedimentary structures, deposit features and particle morphology found in many maar deposits of the West Eifel Volcanic Field (WEVF), in contrast to deposits in the East Eifel Volcanic Field (EEVF), lack the diagnostic criteria of typical phreatomagmatic deposits… Show more

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Cited by 28 publications
(33 citation statements)
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References 62 publications
(97 reference statements)
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“…The well-exposed MFM deposits crop out in the Leyendecker quarry, about 400 m west of the MFM crater rim (s. Appendix 1 in Rausch et al, 2015). The outcrop consists of a 19-23 m thick maar sequence representing the medial to proximal facies of the eruption, as testified by the large volcanic ejecta (blocks up to 1 m in diameter) present within the deposit.…”
Section: Methodsmentioning
confidence: 99%
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“…The well-exposed MFM deposits crop out in the Leyendecker quarry, about 400 m west of the MFM crater rim (s. Appendix 1 in Rausch et al, 2015). The outcrop consists of a 19-23 m thick maar sequence representing the medial to proximal facies of the eruption, as testified by the large volcanic ejecta (blocks up to 1 m in diameter) present within the deposit.…”
Section: Methodsmentioning
confidence: 99%
“…Volcanic ash particles were sampled in four stratigraphically wellconstrained layers: MFM03, MFM20, MFM40, and MFM45 (s. Table 1 in Rausch et al, 2015). MFM03 is a 6-14 cm thick well-sorted layer made of highly vesicular black scoria lapilli, interpreted as magmatic fallout.…”
Section: Methodsmentioning
confidence: 99%
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“…From a microscopic perspective, the relation between particle morphology and eruptive and transport mechanisms has been abundantly explored (e.g., Dellino and Liotino 2002;Ersoy et al 2006Ersoy et al , 2008Heiken and Wohletz 1985;Leibrandt and Le Pennec 2015;Liu et al 2015;Rausch et al 2015;Riley et al 2003;Sheridan and Kortemeier 1987;Sheridan and Marshall 1983;Vonlanthen et al 2015). Heiken (1972) considered that the shape of particles in the ash size range is mostly dependent on the shape of magmatic gas bubbles at the moment of fragmentation: flat and platy shards arise from broken vesicle walls, and droplet shapes are produced from low viscosity magma where the effect of surface tension is likely to become more important.…”
Section: Introductionmentioning
confidence: 99%