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Relevant bibliographies by topics / Evolution of magma

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Journal articles

Academic literature on the topic 'Evolution of magma'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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Journal articles on the topic "Evolution of magma"

1

Koyaguchi, Takehiro, and Katsuya Kaneko. "Thermal evolution of silicic magma chambers after basalt replenishments." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 91, no. 1-2 (2000): 47–60. http://dx.doi.org/10.1017/s0263593300007288.

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In order to understand the governing factors of petrological features of erupted magmas of island-arc or continental volcanoes, thermal fluctuations of subvolcanic silicic magma chambers caused by intermittent basalt replenishments are investigated from the theoretical viewpoint. When basaltic magmas are repeatedly emplaced into continental crust, a long-lived silicic magma chamber may form. A silicic magma chamber within surrounding crust is composed of crystal-melt mixtures with variable melt fractions. We define the region which behaves as a liquid in a mechanical sense (‘liquid part’) and

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2

Wiebe, R. A. "Mafic-silicic layered intrusions: the role of basaltic injections on magmatic processes and the evolution of silicic magma chambers." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 87, no. 1-2 (1996): 233–42. http://dx.doi.org/10.1017/s0263593300006647.

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ABSTRACT:Plutonic complexes with interlayered mafic and silicic rocks commonly contain layers (1–50 m thick) with a chilled gabbroic base that grades upwards to dioritic or silicic cumulates. Each chilled base records the infusion of new basaltic magma into the chamber. Some layers preserve a record of double-diffusive convection with hotter, denser mafic magma beneath silicic magma. Processes of hybridisation include mechanical mixing of crystals and selective exchange of H2O, alkalis and isotopes. These effects are convected away from the boundary into the interiors of both magmas. Fractiona

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3

Marsh, Bruce D. "Solidification fronts and magmatic evolution." Mineralogical Magazine 60, no. 398 (1996): 5–40. http://dx.doi.org/10.1180/minmag.1996.060.398.03.

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AbstractFrom G. F. Becker's and L. V. Pirsson's early enunciations linking the dynamics of magma chambers to the rock records of sills and plutons to this day, two features stand at the centre of nearly every magmatic process: solidification fronts and phenocrysts. The structure and behaviour of the envisioned solidification front, however, has been mostly that akin to non-silicate, non-multiply-saturated systems, which has led to confusion in appreciating its role in magmatic evolution. The common habit of intruding magmas to carry significant amounts of phenocrysts, which can lead to efficie

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4

Thy, P. "Magmas and magma chamber evolution, Troodos ophiolite, Cyprus." Geology 15, no. 4 (1987): 316. http://dx.doi.org/10.1130/0091-7613(1987)15<316:mamcet>2.0.co;2.

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5

Zambra, Carlos Enrique, Luciano Gonzalez-Olivares, Johan González, and Benjamin Clausen. "Temporal Evolution of Cooling by Natural Convection in an Enclosed Magma Chamber." Processes 10, no. 1 (2022): 108. http://dx.doi.org/10.3390/pr10010108.

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This research numerically studies the transient cooling of partially liquid magma by natural convection in an enclosed magma chamber. The mathematical model is based on the conservation laws for momentum, energy and mass for a non-Newtonian and incompressible fluid that may be modeled by the power law and the Oberbeck–Boussinesq equations (for basaltic magma) and solved with the finite volume method (FVM). The results of the programmed algorithm are compared with those in the literature for a non-Newtonian fluid with high apparent viscosity (10–200 Pa s) and Prandtl (Pr = 4 × 104) and Rayleigh

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6

Nizametdinov, I. R., D. V. Kuzmin, S. Z. Smirnov, A. V. Rybin, and I. Yu Kulakov. "Water in parental basaltic magmasof the Menshiy Brat volcano (Iturup Island, Kurile islands)." Доклады Академии наук 486, no. 1 (2019): 93–97. http://dx.doi.org/10.31857/s0869-5652486193-97.

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The paper presents study of the liquidus assemblage of olivine and spinel in high-magnesian basalts (MgO up to 10 mas. %) of the Menshiy Brat volcano (Iturup Island). It was possible to reconstruct the water content and evolution of volatile components in the primary parental magmas that took part in the formation of the Medvezhya Caldera, Iturup Islands. It is shown that the initial water content in the primary melts could reach 5 mas. % with oxygen fugacity corresponding to oxygen buffer NNO + 0.4 log. units. The evolution of magmas involved continuous degassing while magma rises to the surf

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7

Müller, Axel, Alfons M. van den Kerkhof, Hans-Jürgen Behr, Andreas Kronz, and Monika Koch-Müller. "The evolution of late-Hercynian granites and rhyolites documented by quartz – a review." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 100, no. 1-2 (2009): 185–204. http://dx.doi.org/10.1017/s1755691009016144.

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ABSTRACTThe potential of igneous quartz for providing a better understanding of magmatic processes is demonstrated by studying late-Hercynian rhyolites and granites from central and western Europe. Cathodoluminescence (CL) reveals growth patterns and alteration structures within igneous quartz reflecting the magma crystallisation history. The relatively stable and blue-dominant CL of zoned phenocrysts is principally related to variations in the Ti concentration, which is a function of the crystallisation temperature. The Al/Ti ratio of igneous quartz increases with progressive magma differenti

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8

Gualda, Guilherme A. R., Darren M. Gravley, Michelle Connor, et al. "Climbing the crustal ladder: Magma storage-depth evolution during a volcanic flare-up." Science Advances 4, no. 10 (2018): eaap7567. http://dx.doi.org/10.1126/sciadv.aap7567.

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Very large eruptions (>50 km3) and supereruptions (>450 km3) reveal Earth’s capacity to produce and store enormous quantities (>1000 km3) of crystal-poor, eruptible magma in the shallow crust. We explore the interplay between crustal evolution and volcanism during a volcanic flare-up in the Taupo Volcanic Zone (TVZ, New Zealand) using a combination of quartz-feldspar-melt equilibration pressures and time scales of quartz crystallization. Over the course of the flare-up, crystallization depths became progressively shallower, showing the gradual conditioning of the crust. Yet, quartz cr

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9

Flinders, James, and John D. Clemens. "Non-linear dynamics, chaos, complexity and enclaves in granitoid magmas." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 87, no. 1-2 (1996): 217–23. http://dx.doi.org/10.1017/s0263593300006623.

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ABSTRACT:Most natural systems display non-linear dynamic behaviour. This should be true for magma mingling and mixing processes, which may be chaotic. The equations that most nearly represent how a chaotic natural system behaves are insoluble, so modelling involves linearisation. The difference between the solution of the linearised and ‘true’ equation is assumed to be small because the discarded terms are assumed to be unimportant. This may be very misleading because the importance of such terms is both unknown and unknowable. Linearised equations are generally poor descriptors of nature and

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10

Woolley, Alan R., and R. Garth Platt. "The mineralogy of nepheline syenite complexes from the northern part of the Chilwa Province, Malawi." Mineralogical Magazine 50, no. 358 (1986): 597–610. http://dx.doi.org/10.1180/minmag.1986.050.358.05.

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AbstractThe mineralogy, including the accessory phases låvenite, rosenbuschite, and catapleiite, and consequent petrogenetic implications have been investigated for a group of four overlapping nepheline syenite complexes (Chikala, Chaone, Mongolowe, and Chinduzi) and for spatially associated silica-saturated and over-saturated perthosites, from the northern part of the Chilwa Alkaline Province, Malawi.The complexes are thought to have formed by injection into high-level chambers of magma pulses genetically related to a common source magma at depth. Evidence for the source magma is preserved in

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