Results 51 to 60 of about 5,403,170 (324)
Petrology of the Skaergaard Layered Series
GEUS Bulletin, 2023 The Skaergaard intrusion is a layered, ferrobasaltic intrusion emplaced during the Early Eocene into the rifting volcanic margin of East Greenland.
Peter Thy +2 more
doaj +1 more source
Contrasted granite emplacement modes within an oblique crustal section: The closepet granite, South India [PDF]
, 2001 TThe Closepet Granite, in South India, is a large, syntectonic Archaean granitic complex. Differential erosion has exposed it from the lower (25 km) to upper crust (5 km).
Jayananda, M. +3 more
core +1 more source
The structure and petrology of the Cnoc nan Cuilean Intrusion, Loch Loyal Syenite Complex, NW Scotland [PDF]
, 2013 In NW Scotland, several alkaline intrusive complexes of Silurian age intrude the Caledonian orogenic front. The most northerly is the Loch Loyal Syenite Complex, which is divided into three separate intrusions (Ben Loyal, Beinn Stumanadh and Cnoc nan ...
Goodenough, Kathryn M. +5 more
core +3 more sources
Frontiers in Earth Science, 2020 The strength of foliations defined by shape preferred orientation of plagioclase in troctolitic cumulates from the Layered Series of the Skaergaard intrusion, and the Rum Eastern Layered Intrusion, increases as the grains become more tabular, due either ...
Marian B. Holness +3 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, 2023 Melt percolation through partially molten “mushy” regions of the crust underpins models for magma migration, accumulation, and processes that prime systems for eruption.
Eloise Bretagne +3 more
semanticscholar +1 more source
Large Silicic Eruptions, Episodic Recharge, and the Transcrustal Magmatic System
Geochemistry, Geophysics, Geosystems, 2020 Large silicic eruptions result from rapid evacuation of large, upper crustal reservoirs of silicic magmas. These silicic magmas are thought to be replenished by melt extracted from underlying crystal‐rich source mushes, but the timescales and mechanisms ...
Boda Liu, Cin‐Ty Lee
doaj +1 more source
Frontiers in Earth Science, 2023 The behaviour of Group I and II elements during the petrogenesis of felsic igneous rocks is largely controlled by feldspar-liquid relationships. Numerous experimental studies have addressed plagioclase/melt element partitioning, with fewer studies ...
Olaya Dorado +4 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2020 Large silicic magma reservoirs preferentially form in the upper crust of extensional continental environments. However, our quantitative understanding of the link between mantle magmatism, silicic reservoirs, and surface deformation during rifting is ...
J. Gottsmann +4 more
doaj +1 more source
Geosciences, 2021 Constraining the pre-eruptive processes that modulate the chemical evolution of erupted magmas is a challenge. An opportunity to investigate this issue is offered by the interrogation of the crystals carried in lavas.
Teresa Trua, Michael P. Marani
doaj +1 more source
Lateral Reactive Infiltration in a Vertical Gabbroic Crystal Mush, Skaergaard Intrusion, East Greenland [PDF]
Journal of Petrology, 2013 The Marginal Border Series of the Skaergaard intrusion (East Greenland) crystallized in situ on the vertical walls of the magma chamber. It is subdivided into an outer Unbanded Division and an inner Banded Division. The Banded Division contains abundant centimetre- to decimetre-thick bands dominated by fine-grained mafic minerals, with a morphology ...
Namur, Olivier +2 more
openaire +1 more source