The October 1974 basaltic tephra from Fuego volcano: Description and history of the magma body

Rose, William I.; Anderson, A. T.; Woodruff, Laurel G.; Bonis, Samuel

doi:10.1016/0377-0273(78)90027-6

Cited by 128 publications

(118 citation statements)

References 35 publications

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“…The pulsating explosions and bimodal grain size distribution of the tephra suggest that a comminution or milling process could be occurring post-fragmentation in the upper conduit and vent during the eruption (Rose et al, 2008). After the 1974 eruption, the main surface vent of Fuego was observed to be greater than 20 m in radius and was hypothesized to be connected to the source region by a vertical conduit (Rose et al, 1978).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…We focus on the well-documented October 1974 eruption of Volcán de Fuego (Rose et al, 1978), which was meticulously sampled and includes a comprehensive melt inclusion record (Roggensack, 2001;Berlo et al, 2012;Lloyd et al, 2013).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…2010 Eyjafjallajokull, Gudmundsson et al, 2012). The October 17 phase of the eruption was the most explosive of the 4 main phases and produced about 40% of the total erupted material (Rose et al, 1978). Furthermore, this phase exhibited a sustained eruptive sequence that does not include the complexities associated with the initiation or cessation of the eruption (Carr and Walker, 1987).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…The October 17 phase has been described as a subplinian eruption with major ash flows and extensive airfall from an eruption column that reached stratospheric heights (~15 km, Rose et al, 1978). Intense explosions with a one-minute periodicity were observed near the vent.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Shifts in bulk ash geochemistry (Rose et al, 1978), changes in the size and modal proportions of phenocrysts (Roggensack, 2001), and MI heterogeneity (Berlo et al, 2012), have all been presented as evidence for the hybridization of distinct magmas during this 10-day long eruption. It has been speculated that the 1974 eruption either tapped a vertically stratified magma chamber (Rose et al 1978), or that magma ascent was preceded by mixing of magmas, which fractionated at different depths (Roggensack, 2001;Berlo et al, 2012).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

See 4 more Smart Citations

NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions

Lloyd

Ruprecht

Hauri

et al. 2014

Journal of Volcanology and Geothermal Research

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110

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Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

See 3 more Smart Citations

NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions

Lloyd

Ruprecht

Hauri

et al. 2014

Journal of Volcanology and Geothermal Research

109

110

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Testing the accuracy of a 1‐D volcanic plume model in estimating mass eruption rate

Mastin

2014

JGR Atmospheres

131

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During volcanic eruptions, empirical relationships are used to estimate mass eruption rate from plume height. Although simple, such relationships can be inaccurate and can underestimate rates in windy conditions. One-dimensional plume models can incorporate atmospheric conditions and give potentially more accurate estimates. Here I present a 1-D model for plumes in crosswind and simulate 25 historical eruptions where plume height H obs was well observed and mass eruption rate M obs could be calculated from mapped deposit mass and observed duration. The simulations considered wind, temperature, and phase changes of water. Atmospheric conditions were obtained from the National Center for Atmospheric Research Reanalysis 2.5°model. Simulations calculate the minimum, maximum, and average values (M min , M max , and M avg ) that fit the plume height. Eruption rates were also estimated from the empirical formula M empir = 140H obs 4.14 (M empir is in kilogram per second, H obs is in kilometer). For these eruptions, the standard error of the residual in log space is about 0.53 for M avg and 0.50 for M empir . Thus, for this data set, the model is slightly less accurate at predicting M obs than the empirical curve.The inability of this model to improve eruption rate estimates may lie in the limited accuracy of even well-observed plume heights, inaccurate model formulation, or the fact that most eruptions examined were not highly influenced by wind. For the low, wind-blown plume of 14-18 April 2010 at Eyjafjallajökull, where an accurate plume height time series is available, modeled rates do agree better with M obs than M empir .

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Variability in eruption style and associated very long period events at Fuego volcano, Guatemala

2013

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[1] Repeated short-term deployments of seismic, infrasound, video, and gas-emission instruments at Fuego volcano, Guatemala have revealed three types of very long period (VLP) events associated with conduit sealing, pressure accumulation, and release. In 2008, ash-rich explosions issued from a vent on the western flank and produced one type of VLP (Type 1). Impulsive, bomb-rich explosions from the summit vent in 2009 produced a shorter period VLP (Type 2), but also generated ash release. Type 3 VLP events occurred during ash-free exhalations from the summit in 2008 and had waveform shapes similar to Type 2 events. Weak infrasound records for Type 1 explosions compared to Type 2 suggest lower pressures and higher magma porosity for Type 1. Type 3 events correlate with spikes in SO 2 emission rate and are driven by partial sealing and rapid release of ash-free gas at the summit vent. Variations in the VLP period may provide a new tool for monitoring conditions within the conduit.

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The October 1974 basaltic tephra from Fuego volcano: Description and history of the magma body

Cited by 128 publications

References 35 publications

NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions

NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions

Testing the accuracy of a 1‐D volcanic plume model in estimating mass eruption rate

Variability in eruption style and associated very long period events at Fuego volcano, Guatemala

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