Earth and Planetary Science Letters

Journal: Earth and Planetary Science Letters

Abbreviation

Earth Planet. Sci. Lett.

Publisher

Elsevier

ISSN

0012-821X
1385-013X

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Publications1 - 10 of 620

Efficient mobilization and fractionation of rare-earth elements by aqueous fluids upon slab dehydration
Tsay, A.; Zajacz, Zoltán; Sanchez-Valle, C. (2014)
Earth and Planetary Science Letters
Beryllium isotopes as tracers of Lake Lisan (last Glacial Dead Sea) hydrology and the Laschamp geomagnetic excursion
Belmaker, Reuven; Stein, Mordechai; Beer, Jürg; et al. (2014)
Earth and Planetary Science Letters
Cenozoic changes in atmospheric lead recorded in central Pacific ferromanganese crusts
Klemm, Veronika; Reynolds, Ben C.; Frank, Martin; et al. (2007)
Earth and Planetary Science Letters
Noble gases in individual L chondritic micrometeorites preserved in an Ordovician limestone
Meier, M. M.M.; Schmitz, B.; Baur, H.; et al. (2010)
Earth and Planetary Science Letters
Zirconium isotope evidence for incomplete admixing of r-process components in the solar nebula
Schönbächler, Maria; Lee, Der-Chuen; Rehkämper, Mark; et al. (2003)
Earth and Planetary Science Letters
Hf–W thermochronometry: Closure temperature and constraints on the accretion and cooling history of the H chondrite parent body
Kleine, Thorsten; Touboul, Mathieu; Van Orman, James A.; et al. (2008)
Earth and Planetary Science Letters
Observed periodicities and the spectrum of field variations in Holocene magnetic records
Panovska, S.; Finlay, C.C.; Hirt, Ann Marie (2013)
Earth and Planetary Science Letters
Europium and barium enrichments in compositionally zoned felsic tuffs: A smoking gun for the origin of chemical and physical gradients by cumulate melting
Wolff, John A.; Forni, Francesca; Ellis, Ben S.; et al. (2020)
Earth and Planetary Science Letters
Variations in water saturation states and their impact on eruption size and frequency at the Aso supervolcano, Japan
Keller, Franziska; Popa, Răzvan-Gabriel; Julien, Allaz; et al. (2023)
Earth and Planetary Science Letters
The exsolution of a magmatic volatile phase in the plumbing systems of volcanoes plays a key role in controlling growth dynamics of subvolcanic reservoirs and eruptive styles. By using common petrological proxies found in volcanic deposits, such as melt inclusions and apatite crystals, the presence of such an exsolved magmatic volatile phase can be traced, specifically the exsolution of water from silicate melt. To monitor variations in the water saturation state of magmas from the Aso volcanic complex (Kyushu, Japan) prior to and during the catastrophic Aso-4 caldera-forming event (at ∼86 ka BP), we investigate a set of pre-Aso-4 and Aso-4 deposits, combining volatile budgets (F, Cl, OH, S) of melt inclusions, matrix glasses, and apatite crystals, with sulfur isotope signatures in apatite. F-Cl-OH partitioning in apatite along with melt inclusion data from pre-Aso-4 units indicate water-undersaturated conditions during magma evolution until around 10 ka prior to the Aso-4 event. In contrast, eruptions occurring within the last ∼10 ka prior to the Aso-4 event indicate the presence of a water-rich exsolved magmatic volatile phase in the eruptible portions of the subvolcanic reservoir. Likewise, sulfur systematics in apatite and melt inclusions from the Aso-4 event suggest the exsolution of a water-rich magmatic volatile phase at some point prior to the caldera-forming event. Recharge of mafic magmas shortly before the Aso-4 eruption induced chemical hybridization in the resident upper crustal mush, bringing the reservoir back to less evolved compositions and water-undersaturated conditions. This hybridization event is recorded by volatile contents of both apatite and matrix glasses from late-erupted, crystal-rich products of the Aso-4 event, all yielding water-undersaturated signatures. During this hybridization event, chemical dilution and partial redissolution of the exsolved volatile phase reduced the magma compressibility significantly, so that additional magma influx from depth might have allowed a sharply increasing overpressurization in the subvolcanic reservoir and served as a potential trigger for the cataclysmic Aso-4 eruption. Drawing from our observations made on Aso, we propose that recharging of large silicic upper-crustal reservoirs with increased volumes of drier and more mafic melts can influence their water saturation states and associated physical properties. Such changes could contribute to the triggering of large-scale caldera-forming events.
Elasticity and pressure-induced structural changes in vitreous MgSiO3-enstatite to lower mantle pressures
Sanchez-Valle, Carmen; Bass, Jay D. (2010)
Earth and Planetary Science Letters

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