Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Paul J Wallace"'
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 4, Pp n/a-n/a (2023)
Abstract The degassing of CO2 and S from arc volcanoes is fundamentally important to global climate, eruption forecasting, ore deposits, and the cycling of volatiles through subduction zones. However, all existing thermodynamic/empirical models have
Externí odkaz:
https://doaj.org/article/48e05108113a4a85b63e22174990c6aa
Autor:
Hannah C. Elms, Madison L. Myers, Alexander R. L. Nichols, Paul J. Wallace, Colin J. N. Wilson, Simon J. Barker, Bruce L. A. Charlier
Publikováno v:
Bulletin of Volcanology. 85
Volatile measurements in mineral-hosted sealed melt inclusions, and open-ended embayments, have previously been used to study magma ascent dynamics in large rhyolitic eruptions. However, despite occurring more frequently, smaller-volume explosive eve
Autor:
Tyrone O. Rooney, Paul J. Wallace, James D. Muirhead, Brandon Chiasera, R. Alex Steiner, Guillaume Girard, Jeffery A. Karson
Publikováno v:
Journal of the Geological Society. 179
Strain localization is central to the transition between continental rifting and seafloor spreading. In the East African Rift System (EARS), there is an emerging understanding of the link between extensional pulses and magmatic episodes. We investiga
Autor:
Paul J. Wallace, M. Muth
Publikováno v:
Geology. 49:1177-1181
Whether and how subduction increases the oxidation state of Earth's mantle are two of the most important unresolved questions in solid Earth geochemistry. Using data from the southern Cascade arc (California, USA), we show quantitatively for the firs
Publikováno v:
Annual Review of Earth and Planetary Sciences. 49:465-494
Inclusions of basaltic melt trapped inside of olivine phenocrysts during igneous crystallization provide a rich, crystal-scale record of magmatic processes ranging from mantle melting to ascent, eruption, and quenching of magma during volcanic erupti
Autor:
Janne Blichert-Toft, Kenneth W.W. Sims, Paul J. Wallace, D. J. Rasmussen, Glen Mattioli, Erin H. Phillips, Richard C. Aster, Eric S. Boyd, Glenn A. Gaetani
Publikováno v:
Geological Society, London, Memoirs. 55:695-739
Erebus volcano, Antarctica, is the southernmost active volcano on the globe. Despite its remoteness and harsh conditions, Erebus volcano provides an unprecedented and unique opportunity to study the petrogenesis and evolution, as well as the passive
Publikováno v:
American Mineralogist. 105:1898-1919
Melt inclusions record the depth of magmatic processes, magma degassing paths, and volatile budgets of magmas. Extracting this information is a major challenge. It requires determining melt volatile contents at the time of entrapment when working wit
Autor:
Paul J. Wallace, Stephen R. Sutton, Lopaka Lee, A. H. Lerner, Molly C. McCanta, E. Head, Antonio Lanzirotti, Matthew Newville
Publikováno v:
Geochimica et Cosmochimica Acta. 267:164-178
Micro-analytical determination of copper (Cu) speciation in natural magmatic glasses, equilibrated below the nickel – nickel oxide (NNO) buffer, reveals that two copper species are commonly stabilized in such basaltic melts. X-ray absorption fine s
Fluid-flux melting is commonly attributed as the primary driver of magmatism in arcs; however, decompression melting, mantle heterogeneity, and the amount and compositions of slab-derived materials...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d261af9877613af4f0f8cf270b0f03b
https://doi.org/10.1002/essoar.10508246.1
https://doi.org/10.1002/essoar.10508246.1
Autor:
Michelle J. Muth, Paul J. Wallace
Publikováno v:
Earth and Planetary Science Letters. 599:117836