New insights into magma plumbing along rift systems from detailed observations of eruptive behavior at Axial volcano

2016 ◽  
Vol 43 (24) ◽  
pp. 12,423-12,427 ◽  
Author(s):  
Freysteinn Sigmundsson
Keyword(s):  
Axial Volcano ◽  
Magma Plumbing

FEEDBACK BETWEEN STRUCTURAL INHERITANCE, MAGMA-PLUMBING AND FAULTING IN A MULTIPHASE RIFT: THE SHIRE GRABEN, EAST AFRICAN RIFT

2019 ◽  
Author(s):  
Travis J. Vick ◽  
◽  
Folarin Kolawole ◽  
Estella A. Atekwana ◽  
Daniel Lao-Davila ◽  
...  
Keyword(s):  
East African Rift ◽  
East African ◽  
Structural Inheritance ◽  
African Rift ◽  
Magma Plumbing

scholarly journals Sunda arc mantle source δ18O value revealed by intracrystal isotope analysis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Frances M. Deegan ◽  
Martin J. Whitehouse ◽  
Valentin R. Troll ◽  
Harri Geiger ◽  
Heejin Jeon ◽  
...  
Keyword(s):  
Mantle Source ◽  
Secondary Ion Mass Spectrometry ◽  
Isotope Composition ◽  
Isotope Analysis ◽  
Sunda Arc ◽  
Mid Ocean Ridge ◽  
Plumbing Systems ◽  
Ocean Ridge ◽  
Secondary Ion ◽  
Magma Plumbing

AbstractMagma plumbing systems underlying subduction zone volcanoes extend from the mantle through the overlying crust and facilitate protracted fractional crystallisation, assimilation, and mixing, which frequently obscures a clear view of mantle source compositions. In order to see through this crustal noise, we present intracrystal Secondary Ion Mass Spectrometry (SIMS) δ18O values in clinopyroxene from Merapi, Kelut, Batur, and Agung volcanoes in the Sunda arc, Indonesia, under which the thickness of the crust decreases from ca. 30 km at Merapi to ≤20 km at Agung. Here we show that mean clinopyroxene δ18O values decrease concomitantly with crustal thickness and that lavas from Agung possess mantle-like He-Sr-Nd-Pb isotope ratios and clinopyroxene mean equilibrium melt δ18O values of 5.7 ‰ (±0.2 1 SD) indistinguishable from the δ18O range for Mid Ocean Ridge Basalt (MORB). The oxygen isotope composition of the mantle underlying the East Sunda Arc is therefore largely unaffected by subduction-driven metasomatism and may thus represent a sediment-poor arc end-member.

Distribution and composition of hydrothermal plume particles from the ASHES Vent Field at Axial Volcano, Juan de Fuca Ridge

1990 ◽  
Vol 95 (B8) ◽  
pp. 12855 ◽  
Author(s):  
R. A. Feely ◽  
T. L. Geiselman ◽  
E. T. Baker ◽  
G. J. Massoth ◽  
S. R. Hammond
Keyword(s):  
Juan De Fuca Ridge ◽  
Hydrothermal Plume ◽  
Fuca Ridge ◽  
Juan De Fuca ◽  
Axial Volcano

scholarly journals Estimation of Pre-eruptive Magma Ascent Using a Hydrokinetic Model of Magma Plumbing System

2012 ◽  
Author(s):  
S. Minami ◽  
M. Iguchi ◽  
H. Mikada ◽  
T. Goto ◽  
J. Takekawa
Keyword(s):  
Magma Ascent ◽  
Plumbing System ◽  
Magma Plumbing System ◽  
Magma Plumbing
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