Gravitational spreading causes en-echelon diking along a rift zone of Madeira Archipelago: an experimental approach and implications for magma transport

Klügel, Andreas; Walter, Thomas R.; Schwarz, Stefanie; Geldmacher, Jörg

doi:10.1007/s00445-005-0418-6

Cited by 32 publications

(26 citation statements)

References 34 publications

(60 reference statements)

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“…Segmented, en echelon geometries are common on both dikes exposed by erosion (e.g. Delaney and Pollard 1981;Klügel et al 2005), and inferred from surface eruptive vents and fissures (e.g. Pollard et al 1983;Fink and Pollard 1983;Reches and Fink 1988).…”

Section: Dike Segmentationmentioning

confidence: 99%

A model for radial dike emplacement in composite cones based on observations from Summer Coon volcano, Colorado, USA

Poland

Moats²,

Fink

2007

Bull Volcanol

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Section: Dike Segmentationmentioning

confidence: 99%

A model for radial dike emplacement in composite cones based on observations from Summer Coon volcano, Colorado, USA

Poland

Moats²,

Fink

2007

Bull Volcanol

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“…In mid-plate island systems, the structural control on coastline morphology is probably less evident, but is also common. On these islands, structures are typically controlled by volcano-tectonic stresses coupled with gravitational stresses (Walker, 1999;Carracedo, 1999;Klügel et al, 2005b;Walter et al, 2006). Many oceanic island volcanoes exhibit rift zones defined by swarms of dykes, and these may influence coastal morphology in a direct or indirect way.…”

Section: Structural and Tectonic Control On Coastline Evolutionmentioning

confidence: 99%

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Ramalho¹,

Quartau

Trenhaile

et al. 2013

Earth-Science Reviews

153

147

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The growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially characterized by rapid but intermittent lateral growth through the formation of lava deltas, largely expanding the coastlines until they, typically, reach their maximum extension. With the post-shield quiescence in volcanic activity, destructive processes gradually take over and coastlines retreat, adopting a more prominent profile; mass wasting and marine and fluvial erosion reshape the landscape and, if conditions are favorable, biogenic processes assume a prominent role. Posterosional volcanic activity may temporarily reverse the balance by renewing coastline expansion, but islands inexorably enter in a long battle for survival above sea level. Reef growth and/or uplift may also prolong the island's lifetime above the waves. The ultimate fate of most islands, however, is to be drowned through subsidence and/or truncation by marine erosion.Keywords complex, interplay, between, volcanism, erosion, sedimentation, sea, level, islands, change, coastal, biogenic, production, oceanic, evolution, volcanic, GeoQuest Disciplines Medicine and Health Sciences | Social and Behavioral Sciences Publication DetailsRamalho, R. S., Quartau, R., Trenhaile, A. S., Mitchell, N. C., Woodroffe, C. D. & Avila, S. P. (2013). Coastal evolution on volcanic oceanic islands: a complex interplay between volcanism, erosion, sedimentation, sealevel change and biogenic production. Earth-Science Reviews, 127 140-170. AbstractThe growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially ch...

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“…Thus, we suggest that the lateral transport of melts via dikes into the basin is the major process during the formation of the rift zones. The direction of dikes on Faial is indeed slightly rotated against the general direction of lineaments (mean of 298 • ± 16 • (Trippanera et al, 2014), however, this is rather an effect of shallow en-echelon dyking, comparable to that observed at Desertas Islands in the Madeira archipelago (Klügel et al, 2005b;Trippanera et al, 2014).…”

Section: Discussion the Formation Of The Volcanic Rift Zonesmentioning

confidence: 92%

Correlated Changes Between Volcanic Structures and Magma Composition in the Faial Volcanic System, Azores

et al. 2018

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Gravitational spreading causes en-echelon diking along a rift zone of Madeira Archipelago: an experimental approach and implications for magma transport

Cited by 32 publications

References 34 publications

A model for radial dike emplacement in composite cones based on observations from Summer Coon volcano, Colorado, USA

A model for radial dike emplacement in composite cones based on observations from Summer Coon volcano, Colorado, USA

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Correlated Changes Between Volcanic Structures and Magma Composition in the Faial Volcanic System, Azores

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