Results 61 to 70 of about 536,264 (226)

Plagioclase as evidence of magmatic evolution in the Zafarqand porphyry copper deposit, NE Isfahan

open access: yesJournal of Economic Geology, 2018
Introduction Chemical and textural zoning patterns preserved in plagioclase phenocrysts can provide useful information on parameters that constrains the changing melt compositions in the magma systems.
Maryam Aminoroayaei Yamini   +3 more
doaj   +1 more source

Hybridization in the subvolcanic Jaala-Iitti complex and its petrogenetic relation to rapakivi granites and associated mafic rocks of southeastern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1995
The 1630 Ma Jaala-Iitti complex is an example of bimodal rapakivi granite magmatism in which the interaction of granite and diabase magmas have led locally to hybridization.
P.T. Salonsaari
doaj   +1 more source

The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]

open access: yes, 2013
The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Schmincke, Hans-Ulrich, Alvarado, G. E.
core  

Topology‐based Visual Analysis of Hydrothermal Plumes

open access: yesComputer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan   +3 more
wiley   +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 MexMAGIC population reveals the genetic architecture of traits exhibiting clinal variation in Mexican native maize

open access: yesNew Phytologist, EarlyView.
The MexMAGIC population mixes native maize varieties from across Mexico to study functional genetic diversity. Summary Defining the genetic basis of local adaptation is a key goal of evolutionary biology and crop improvement. Theory predicts that when selective pressures follow differences in the environment, a cline will be established.
Sergio Perez‐Limón   +18 more
wiley   +1 more source

Lithospheric structural dynamics and geothermal modeling of the Western Arabian Shield

open access: yesScientific Reports, 2023
Understanding the dynamics of suturing and cratonisation and their implications are vital in estimating the link between the lithospheric mantle architecture and geothermal resources.
Oualid Melouah   +3 more
doaj   +1 more source

The origin of Cihara granodiorite from South Banten

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol3no2.20085Petrographical and geochemical characteristics of the Late Oligocene Cihara Granodiorite from South Banten are presented.
Udi Hartono   +2 more
doaj   +1 more source

'Red Tourmaline' [Poem]

open access: yes
Magma 88: Underworld. 2024. Poetry Journal.
Scott, Richard
core   +5 more sources

Mineral Cloud Formation above Magma Oceans in Sub-Neptune Atmospheres

open access: yesThe Astrophysical Journal Letters
The potential presence of a magma surface below a thick atmosphere primarily composed of hydrogen in some sub-Neptune exoplanets suggests a strong link between the interior composition and atmosphere through chemical coupling of volatile and refractory ...
Elspeth K. H. Lee   +2 more
doaj   +1 more source

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