Journal ArticleDOI
Along-arc, inter-arc and arc-to-arc variations in volcanic gas CO2/ST ratios reveal dual source of carbon in arc volcanism
Alessandro Aiuppa,Alessandro Aiuppa,Tobias Fischer,Terry Plank,Philippe Robidoux,Rossella Di Napoli +5 more
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In this article, the global variations of volcanic arc CO 2 /S T gas ratios are reviewed and a subset of high-temperature (≥450°C) arc gases are selected to be used to infer the deep source of volatiles.About:
This article is published in Earth-Science Reviews.The article was published on 2017-05-01. It has received 113 citations till now. The article focuses on the topics: Volcanic arc & Volcanic Gases.read more
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Subduction Fluxes of Water, Carbon Dioxide, Chlorine, and Potassium
TL;DR: In this paper, the authors estimate that half to two thirds of subducted crustal water is later refluxed at the prism toe; most of the remaining water escapes at subarc depths, triggering partial melting.
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Remobilization of crustal carbon may dominate volcanic arc emissions.
TL;DR: The carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil (m) than the canonical mid-ocean ridge basalt value of -6.0 m as discussed by the authors.
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The emissions of CO2 and other volatiles from the world's subaerial volcanoes.
Tobias Fischer,Santiago Arellano,Simon Carn,Alessandro Aiuppa,Bo Galle,P. Allard,Taryn Lopez,Hiroshi Shinohara,Peter J. Kelly,Cynthia Werner,Carlo Cardellini,Giovanni Chiodini +11 more
TL;DR: An updated evaluation of the world’s volcanic CO2 emissions is presented that takes advantage of recent improvements in satellite-based monitoring of sulfur dioxide, the establishment of ground-based networks for semi-continuous CO2-SO2 gas sensing and a new approach to estimate key volcanic gas parameters based on magma compositions.
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Understanding and forecasting phreatic eruptions driven by magmatic degassing
John Stix,J. Maarten de Moor +1 more
TL;DR: A number of precursory signals which appear to be important in understanding and forecasting phreatic eruptions are examined, including very long period events, banded tremor, and gas ratios, in particular H2S/SO2 and CO2/so2.
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CO 2 flux emissions from the Earth’s most actively degassing volcanoes, 2005–2015
TL;DR: It is proposed that the strong, but yet unmeasured, CO2 emissions from several remote degassing volcanoes worldwide can be predicted using regional/global relationships between the CO2/ST ratio of volcanic gases and whole-rock trace element compositions (e.g., Ba/La).
References
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Journal ArticleDOI
Global Sea Floor Topography from Satellite Altimetry and Ship Depth Soundings
TL;DR: In this paper, a digital bathymetric map of the oceans with a horizontal resolution of 1 to 12 kilometers was derived by combining available depth soundings with high-resolution marine gravity information from the Geosat and ERS-1 spacecraft.
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The chemical composition of subducting sediment and its consequences for the crust and mantle
Terry Plank,Charles H. Langmuir +1 more
TL;DR: This article evaluated subducting sediments on a global basis in order to better define their chemical systematics and to determine both regional and global average compositions, and then used these compositions to assess the importance of sediments to arc volcanism and crust-mantle recycling, and to re-evaluate the chemical composition of the continental crust.
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Tectonic Implications of the Composition of Volcanic Arc Magmas
Julian A. Pearce,David W. Peate +1 more
TL;DR: In this paper, the authors summarize knowledge of the behavior of elements in the subduction system and highlight the physical and chemical processes that have been invoked as being important in controlling the composition of volcanic arc magmas.
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Major and trace element composition of the depleted MORB mantle (DMM)
R. Workman,Stanley R. Hart +1 more
TL;DR: Asimow et al. as mentioned in this paper derived an estimate for the chemical composition of the depleted MORB mantle (DMM), the source reservoir to mid-ocean ridge basalts (MORBs), which represents at least 30% the mass of the whole silicate Earth.
Book
Volcanoes of the World
TL;DR: In this paper, the authors present a Chronology of large-volume Holocene Eruptions Fatalities and Evacuations Preliminary List of Pleistocene Volcanoes Preliminary list of Large-Volume Pleistogenic Eruption Gazetteer References VOLCANO DATA Volcano Name Subregion Latitude and Longitude Elevation Population Rock Type Type (Morphology) Volcano Number Status ERUPTION DATA Area of Activity Dates: Start and Stop Uncertainties Dating Techniques Duration Eruptive Characteristics Volcanic Explosivity Index (VEI) Volume of Products (Vol