Journal ArticleDOI
Santa María, Guatemala: Bimodal soda-rich calc-alkalic stratovolcano
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TLDR
The Santa Maria volcano has a three-phase history of activity: a long period of composite cone growth, a dramatic plinian eruption and a dome-extrusion period.About:
This article is published in Journal of Volcanology and Geothermal Research.The article was published on 1987-08-01. It has received 48 citations till now. The article focuses on the topics: Magma chamber & Silicic.read more
Citations
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Experimental investigations of the role of H2O in calc-alkaline differentiation and subduction zone magmatism
TL;DR: The phase relations of natural aphyric high-alumina basalts and their intrusive equivalents were determined through rock-melting experiments at 2 kb, H2O-saturated with fO2 buffered at NNO.
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H2O in basalt and basaltic andesite glass inclusions from four subduction-related volcanoes
T.W. Sisson,Graham D. Layne +1 more
TL;DR: In this article, total dissolved H2O and major element abundances were measured in basalt and basaltic andesite glass inclusions in olivine phenocrysts from Quaternary eruptions of four subduction-related volcanoes to test the hypothesis that low-MgO high-alumina basalts contain high H 2O at depth.
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Temperatures and H 2 O contents of low-MgO high-alumina basalts
TL;DR: Experimental evidence was used to estimate H2O contents in low-MgO high-alumina basalts (HABs) (8.5wt.% MgO) as discussed by the authors.
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Hornblende-melt trace-element partitioning measured by ion microprobe
TL;DR: In this paper, the authors measured trace-element abundances in situ by ion microprobe in five samples of hornblende and melt ranging from basaltic andesite to high-silica rhyolite.
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Redox control of sulfur degassing in silicic magmas
TL;DR: In this article, it was shown that if the excess sulfur is stored in a fluid phase, it implies a strong preference of sulfur for the fluid over the melt under oxidized conditions, with fluid/melt partition coefficients varying between 50 and 2612.
References
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Journal ArticleDOI
A Guide to the Chemical Classification of the Common Volcanic Rocks
T. N. Irvine,W. R. A. Baragar +1 more
TL;DR: In this paper, a system was presented whereby volcanic rocks may be classified chemically as follows: Subalkaline Rocks:A.B. Tholeiitic basalt series:Tholeitic picrite-basalt; tholeiite, tholeitic andesite; dacite; rhyolite.
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Origin of Basalt Magmas: An Experimental Study of Natural and Synthetic Rock Systems
H. S. Yoder,C. E. Tilley +1 more
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The bearing of phase equilibria studies in synthetic and natural systems on the origin and evolution of basic and ultrabasic rocks
TL;DR: In this article, a revised closed system model of basalt evolution is presented, based upon these controlling factors; depth of partial melting, extent of part melting, speed of movement towards the surface, and olivine extraction.
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Magma mixing: a mechanism for triggering acid explosive eruptions
TL;DR: Injection of basic magma into acid magma causes superheating of the acid and vigorous convection as discussed by the authors, which can lead to an explosive acid eruption in volcanic edifices.
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Abyssal tholeiites from the Oceanographer Fracture Zone. II - Phase equilibria and mixing
TL;DR: A comparison of approximately 2,000 abyssal tholeiite compositions to the experimental liquid-line-of-descent equilibria reveals that erupted differentiates which would be expected from advanced fractionation are scarce.
Related Papers (5)
Temporal trends in lava dome extrusion at Santiaguito 1922–2000
The October 1902 plinian eruption of Santa Maria volcano, Guatemala
Stanley N. Williams,Stephen Self +1 more