Explosive dynamics of violent Strombolian eruptions: The eruption of Parícutin Volcano 1943–1952 (Mexico)

Pioli, Laura; Erlund, EJ; Johnson, E. R.; Cashman, Katharine V.; Wallace, PW; Rosi, Mauro; Granados, Hugo Delgado

doi:10.1016/j.epsl.2008.04.026

Cited by 210 publications

(210 citation statements)

References 38 publications

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“…This value indicates that the major black scoria blanket must have been produced by an eruptive stage in the lower end member of a sub-Plinian eruption [74,75]. This type of activity is commonly referred in a basaltic monogenetic context as a violent Strombolian type of eruption [1,34,[76][77][78][79]. It is also likely that the smaller black NE-trending dispersal pattern was also of the violent end-member of normal Strombolian type eruptions based on the similar dispersion values as the E-trending ash and lapilli field.…”

Section: Volcanic Facies Distributionmentioning

confidence: 99%

The role of collapsing and cone rafting on eruption style changes and final cone morphology: Los Morados scoria cone, Mendoza, Argentina

et al. 2011

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Payún Matru Volcanic Field is a Quaternary monogenetic volcanic field that hosts scoria cones with perfect to breached morphologies. Los Morados complex is a group of at least four closely spaced scoria cones (Los Morados main cone and the older Cones A, B, and C). Los Morados main cone was formed by a long lived eruption of months to years. After an initial Hawaiian-style stage, the eruption changed to a normal Strombolian, conebuilding style, forming a cone over 150 metres high on a northward dipping (∼4˚) surface. An initial cone gradually grew until a lava flow breached the cone's base and rafted an estimated 10% of the total volume. A sudden sector collapse initiated a dramatic decompression in the upper part of the feeding conduit and triggered violent a Strombolian style eruptive stage. Subsequently, the eruption became more stable, and changed to a regular Strombolian style that partially rebuilt the cone. A likely increase in magma flux coupled with the gradual growth of a new cone caused another lava flow outbreak at the structurally weakened earlier breach site. For a second time, the unstable flank of the cone was rafted, triggering a second violent Strombolian eruptive stage which was followed by a Hawaiian style lava fountain stage. The lava fountaining was accompanied by a steady outpour of voluminous lava emission accompanied by constant rafting of the cone flank, preventing the healing of the cone. Santa Maria is another scoria cone built on a nearly flat pre-eruption surface. Despite this it went through similar stages as Los Morados main cone, but probably not in as dramatic a manner as Los Morados. In contrast to these examples of large breached cones, volumetrically smaller cones, associated to less extensive lava flows, were able to heal raft/collapse events, due to the smaller magma output and flux rates. Our evidence shows that scoria cone growth is a complex process, and is a consequence of the magma internal parameters (e.g. volatile content, magma flux, recharge, output volume) and external conditions such as inclination of the pre-eruptive surface where they grew and thus gravitational instability.

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Section: Volcanic Facies Distributionmentioning

confidence: 99%

The role of collapsing and cone rafting on eruption style changes and final cone morphology: Los Morados scoria cone, Mendoza, Argentina

et al. 2011

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“…Fractional magma degassing within branches departing from a central conduit has been suggested for different geochemistry of degassing from the Halemaumau and Pu'u 'O'o craters at Kilauea volcano [Gerlach and Graeber, 1985] as well as from the Voragine and SE craters at Etna [Gauthier and Le Cloarec, 1998;Burton et al, 2003]. At Paricutin volcano, the 1943 -1952 violent Strombolian activity has been explained in terms of gas and magma partitioning at a T-junction at the base of the cone [Pioli et al, 2008]. A shallow linkage of the conduits feeding the three craters at Stromboli has been inferred from thermal [Harris et al, 1996] and infrasonic observations [Ripepe et al, 2007].…”

Section: Introductionmentioning

confidence: 99%

Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy

Marchetti

Ripepe

Ulivieri

et al. 2009

Geophysical Research Letters

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[1] On multi-vents volcanoes changes in activity between different vents reflect a complex fluid-dynamics of the shallow feeding systems and are often explained numerically and experimentally in terms of conduit branches and bifurcations. We present new geophysical constraints on the shallow feeding system of Etna volcano derived from array analysis of infrasound radiated from two distinct sources, one located in the SE crater and one in the Voragine or NE crater (VNE). These two sources alternated in their behavior, with the VNE crater system radiating low amplitude background infrasound interrupted by episodes of increased infrasound radiation from the SE crater. This switching behavior suggested a branched shallow feeding system strongly controlled by the gas/magma-flux. Here, the VNE craters represented the preferential and most stable branch of degassing during stationary flux regime, while the SE crater branch activated in response to an increase in the magma/gas supply rate.

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“…In general, the Strombolian-style magma fragmentation occurs at shallow depth (upper part of the magma column), when the over-pressurized and segregated gas-bubbles break and burst out from the rising, mostly mafic, magmas [38,[103][104][105]. In spite of this general trend of scoria cone eruption and growth, scoria cones are far more complex volcanoes [98], and evolve through various eruption styles from Hawaiian lava fountaining [106], violent Strombolian [107] to intermittent phreatomagmatic eruptions such as maar-forming [104,108] can take place during their relatively short lived (days to years) eruption period [109]. As a result, the shape of the scoria cone will depend on these variations of the eruption style.…”

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confidence: 99%

Neogene-Quaternary Volcanic forms in the Carpathian-Pannonian Region: a review

et al. 2010

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Neogene to Quaternary volcanic/magmatic activity in the Carpathian-Pannonian Region (CPR) occurred between 21 and 0.1 Ma with a distinct migration in time from west to east. It shows a diverse compositional variation in response to a complex interplay of subduction with roll-back, back-arc extension, collision, slab break-off, delamination, strike-slip tectonics and microplate rotations, as well as in response to further evolution of magmas in the crustal environment by processes of differentiation, crustal contamination, anatexis and magma mixing. Since most of the primary volcanic forms have been affected by erosion, especially in areas of post-volcanic uplift, based on the level of erosion we distinguish: (1) areas eroded to the basement level, where paleovolcanic reconstruction is not possible; (2) deeply eroded volcanic forms with secondary morphology and possible paleovolcanic reconstruction; (3) eroded volcanic forms with remnants of original morphology preserved; and (4) the least eroded volcanic forms with original morphology quite well preserved. The large variety of volcanic forms present in the area can be grouped in a) monogenetic volcanoes and b) polygenetic volcanoes and their subsurface/intrusive counterparts that belong to various rock series found in the CPR such as calc-alkaline magmatic rock-types (felsic, intermediate and mafic varieties) and alkalic types including K-alkalic, shoshonitic, ultrapotassic and Na-alkalic. The following volcanic/subvolcanic forms have been identified: (i) domes, shield volcanoes, effusive cones, pyroclastic cones, stratovolcanoes and calderas with associated intrusive bodies for intermediate and basic calc-alkaline volcanism; (ii) domes, calderas and ignimbrite/ash-flow fields for felsic calc-alkaline volcanism and (iii) dome flows, shield volcanoes, maars, tuffcone/tuff-rings, scoria-cones with or without related lava flow/field and their erosional or subsurface forms (necks/ plugs, dykes, shallow intrusions, diatreme, lava lake) for various types of K-and Na-alkalic and ultrapotassic magmatism. Finally, we provide a summary of the eruptive history and distribution of volcanic forms in the CPR using several sub-region schemes.

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Explosive dynamics of violent Strombolian eruptions: The eruption of Parícutin Volcano 1943–1952 (Mexico)

Cited by 210 publications

References 38 publications

The role of collapsing and cone rafting on eruption style changes and final cone morphology: Los Morados scoria cone, Mendoza, Argentina

The role of collapsing and cone rafting on eruption style changes and final cone morphology: Los Morados scoria cone, Mendoza, Argentina

Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy

Neogene-Quaternary Volcanic forms in the Carpathian-Pannonian Region: a review

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