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Petrogenesis and Experimental Petrology of Granitic Rocks
Minerals and Rocks, 1996 This book deals with the petrogenesis of granitic rocks. It gives a summary and interpretation of experimental results obtained in synthetic and natural rock systems.
Wilhelm Johannes, François Holtz
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Petrogenesis of Metamorphic Rocks
Springer Textbooks in Earth Sciences, Geography and Environment, 2023Kurt Bucher
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Petrogenesis of Himalayan Leucogranites: Perspective From a Combined Elemental and Fe-Sr-Nd Isotope Study [PDF]
Journal of Geophysical Research: Solid Earth, 2021 The petrogenesis of Himalayan leucogranites remains crucial for understanding the thermal and tectonic evolution of the Himalayan orogen. To understand whether they are largely pristine melts of crustal anatexis or have experienced a high degree of ...
Yongsheng He +2 more
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Annual Review of Earth and Planetary Sciences, 1986
Andesites are most commonly found at convergent plate margins, where they constitute part of the erupted lavas of volcanic arcs that parallel subduction zones. They are also found less frequently as eruptive products in divergent plate boundaries, in association with midocean ridge basaltic volcanism.
Timothy L. Grove, Rosamond J. Kinzler
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Andesites are most commonly found at convergent plate margins, where they constitute part of the erupted lavas of volcanic arcs that parallel subduction zones. They are also found less frequently as eruptive products in divergent plate boundaries, in association with midocean ridge basaltic volcanism.
Timothy L. Grove, Rosamond J. Kinzler
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Petrogenesis of oceanic andesites
Journal of Geophysical Research: Solid Earth, 1981The andesites and cogenetic rocks of the intraoceanic island arc systems vary in silica content from 49–50% SiO2 to about 76% SiO2. The most primitive compositions, having contents of about 50% SiO2, are the basaltic andesites, which are primary compositions generated by partial melting of the uppermost section of the subducted oceanic crust.
Sven Maaløe, Tom Svane Petersen
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Pristinity and petrogenesis of eucrites
Meteoritics & Planetary Science, 2023AbstractNew petrography, mineral chemistry, and whole rock major, minor, and trace element abundance data are reported for 29 dominantly unbrecciated basaltic (noncumulate) eucrites and one cumulate eucrite. Among unbrecciated samples, several exhibit shock darkening and impact melt veins, with incomplete preservation of primary textures.
Jasmeet K. Dhaliwal +2 more
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Geochimica et Cosmochimica Acta, 2003
Abstract The recent discovery of two new angrites, Sahara 99555 and D'Orbigny, has revived interest in this small group of achondrites. We measured trace element abundances in the individual minerals of these two angrites and compared them with the three Antarctic angrites, LEW 86010, LEW 87051 and Asuka 881371.
Christine Floss +4 more
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Abstract The recent discovery of two new angrites, Sahara 99555 and D'Orbigny, has revived interest in this small group of achondrites. We measured trace element abundances in the individual minerals of these two angrites and compared them with the three Antarctic angrites, LEW 86010, LEW 87051 and Asuka 881371.
Christine Floss +4 more
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Nature, 1939
THIS memoir is probably the most instructive contribution to modern petrology since Brogger published his description of the Oslo area (1931)1. It describes the north-eastern (British) part of the Birunga lava-field—a region of Tertiary and Recent vulcanism which produced ‘alkali’ lavas of basic to intermediate composition. The field extends along, and
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THIS memoir is probably the most instructive contribution to modern petrology since Brogger published his description of the Oslo area (1931)1. It describes the north-eastern (British) part of the Birunga lava-field—a region of Tertiary and Recent vulcanism which produced ‘alkali’ lavas of basic to intermediate composition. The field extends along, and
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Clays and clay minerals (National Conference on Clays and Clay Minerals), 1963
Abstract The formation of typical bentonites occurs in two stages. The first stage comprises the development, transportation, and deposition of the volcanic ash, which determines the geometry and structure of the bentonite rock and influences the alteration of the ash during the second stage.
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Abstract The formation of typical bentonites occurs in two stages. The first stage comprises the development, transportation, and deposition of the volcanic ash, which determines the geometry and structure of the bentonite rock and influences the alteration of the ash during the second stage.
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1991
The development of realistic hypotheses for the petrogenesis of potassic rocks has been hindered, until recently, by the tendency of petrologists to consider all leucite-bearing K-rich rocks as being related. Sufficient geological, geochemical, and mineralogical evidence (see Chapter 2) has now accumulated to show that this assumption is not correct ...
Roger H. Mitchell, Steven C. Bergman
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The development of realistic hypotheses for the petrogenesis of potassic rocks has been hindered, until recently, by the tendency of petrologists to consider all leucite-bearing K-rich rocks as being related. Sufficient geological, geochemical, and mineralogical evidence (see Chapter 2) has now accumulated to show that this assumption is not correct ...
Roger H. Mitchell, Steven C. Bergman
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