Results 161 to 170 of about 5,658 (224)

Accretion of volatile elements on Earth without the need of a late veneer. [PDF]

open access: yesSci Adv
Calvo L   +8 more
europepmc   +1 more source

A more reduced mantle beneath the lunar South Pole-Aitken basin. [PDF]

open access: yesNat Commun
Zhang H   +16 more
europepmc   +1 more source

Magmas and magma chamber evolution, Troodos ophiolite, Cyprus

open access: yesGeology, 1987
The Troodos ophiolite traditionally has been considered to have formed by constructive processes at an oceanic spreading center. New information on the phase layering and cryptic variation in gabbros and ultramafic cumulates overlying tectonized harzburgites, however, does not support the existence of a large, steady-state, frequently replenished ...
Kusumoto, Shigekazu, Gudmundsson, Agust
openaire   +2 more sources

The role of incremental magma chamber growth on ore formation in porphyry copper systems

open access: yesEarth and Planetary Science Letters, 2020
Porphyry copper deposits are formed by fluids released from felsic magmatic intrusions of batholithic dimensions, which are inferred to have been incrementally built up by a series of sill injections.
Maximilian Korges   +2 more
exaly   +2 more sources

Magma chamber behavior beneath a volcanic edifice

open access: yesJournal of Geophysical Research, 2003
International audienceThe construction of a large volcanic edifice at Earth's surface generates stresses in the upper crust whose magnitude is comparable to those of tectonic stresses and overpressures within a magma chamber.
Virginie Pinel, Claude Jaupart
exaly   +2 more sources
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Processes in magma chambers

Journal of the Geological Society, 1981
One of the major limitations in dealing with subvolcanic and plutonic magmatic processes is the inaccessibility of actifre magma chambers. Although this has the advantage of allowing scope for imagination and speculation, untrammelled by too many physical constraints, most igneous petrologists would dearly like to know what magma chambers ...
openaire   +2 more sources

The role of volatiles in magma chamber dynamics

Nature, 2002
Many andesitic volcanoes exhibit effusive eruption activity, with magma volumes as large as 10(7)-10(9) m(3) erupted at rates of 1-10 m(3) x s(-1) over periods of years or decades. During such eruptions, many complex cycles in eruption rates have been observed, with periods ranging from hours to years.
Herbert E, Huppert, Andrew W, Woods
openaire   +2 more sources

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