Results 111 to 120 of about 5,658 (224)

Coupled Geodynamical‐Geochemical Perspectives on the Generation and Composition of Mid‐Ocean Ridge Basalts

open access: yesGeochemistry, Geophysics, Geosystems
Owing to their abundance and relative availability on Earth's seafloor, mid‐ocean ridge basalts (MORBs) have a well‐defined chemical element budget, reflected by the low standard deviation associated with typical normal MORB (N‐MORB) composition. However,
Thomas Duvernay   +3 more
doaj   +1 more source

Origin of calcite by magma mixing in mingled rocks of the Ghansura Rhyolite Dome, Bathani volcano-sedimentary sequence, eastern India

open access: yesMineralogia
The Ghansura Rhyolite Dome (GRD) is an integral part of the Bathani volcano-sedimentary sequence (BVSs), which in turn is a vital component of the Chotanagpur Granite Gneiss Complex (CGGC), eastern India.
Gogoi Bibhuti, Basumatary Pallabi
doaj   +1 more source

THE PHLEGRAEAN FIELDS - MAGMA EVOLUTION WITHIN A SHALLOW CHAMBER

open access: yes, 1983
A systematic petrological and chemical study of the volcanic products of the Phlegraean Fields has been accomplished based on the new stratigraphy described by Rosi et al. (this volume). The majority of Phlegraean rocks belong to the "potassic" series of
ARMIENTI, PIETRO   +7 more
core   +1 more source

The “Pomici di mercato” Plinian eruption of Somma-Vesuvius: magma chamber processes and eruption dynamics

open access: yes, 2007
The Pomici di Mercato (PdM, 8,010±40 a), also known in the literature as Pomici Gemelle or Pomici di Ottaviano, is one of the oldest Plinian eruptions of Somma- Vesuvius.
Orsi, G   +3 more
core   +1 more source

Centrifuge experiments with magmatic systems : from melt segregation to pluton emplacement

open access: yes, 2011
In this thesis, laboratory investigations have been conducted to investigate several processes occurring during the melt segregation (crystal settling and compaction processes), as well as during emplacement of plutons.
Forien, Mélanie
core  

Parameters of magma chambers

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
V V Gordienko, L Ya Gordienko
openaire   +1 more source

Zoned magma chamber of the Osuzuyama acid rocks, southwest Japan

open access: yes, 1983
The Osuzuyama acid igneous complex comprises voluminous pyroclastic deposits and lavas with dacitic to rhyolitic compositions. They represent magma which erupted from a compositionally zoned magma chamber without a detectable cooling hiatus.
Setsuya Nakada
core  

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