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Lecture notes on Metamorphic Petrology Author: Dr. Mahrous Abu El-Enen ... -2- Metabasites at the greenschist and amphibolite facies conditions ...
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It could be also include the basic variety of intermediate igneous rocks. Basic igneous rocks are made up essentially of Ca-plagioclase and augite and may ...
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Chapter 25. Metamorphic Facies and Metamorphosed Mafic Rocks V.M. Goldschmidt (1911, 1912a), contact metamorphosed pelitic, calcareous, and psammitic hornfelses in ...
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... epidote albite actinolite quartz titanite. Epidote amphibolite ... Albite-epidote hornfels facies: biotite muscovite chlorite albite quartz ...
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... petrogenetic grid for metamorphosed mafic rocks showing the location of several determined univariant reactions in the CaO-MgO-Al2O3-SiO2-H2O-(Na2O) system ...
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Serpentinite Seamount Processes in the IBM system
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More Ca-rich plagioclases become progressively unstable as T lowered ... pressure-temperature-time paths based on a crustal thickening heat-flow model. ...
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T-X phase diagram of the system albite-orthoclase at ... of several determined univariant reactions in the CaO-MgO-Al2O3-SiO2-H2O-(Na2O) system ( C(N)MASH ...
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Different protoliths will yield different mineral assemblages at = P-T conditions ... After Carmichael (1970) J. Petrol., 11, 147-181. ...
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Metamorphic Rocks Metamorphism Literally translates to change of form In geology it refers to solid-state changes in mineral assemblages of a rock, and/or the ...
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phase diagram further restricts. possible P-T range. ERTH 3020: METAMORPHIC REACTIONS ... P-T diagrams for multicomponent systems that show a set of reactions, ...
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formed by injection of veins. formed by metamorphic segregation (chemical migration) ... irregular or cross-cutting 'granitic' bands or veins in a darker, ...
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limestones, sandstones) Metamorphic rocks can be classified according to: ... (limestone or dolostone) ultramafic rock (peridotite or pyroxenite) granitoid rock ...
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spatial variations in lithology (X) or P-T conditions ... for a given lithology, map isograds based on. distribution of assemblages ...
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an orthosilicate with the general formula: X3Y2Si3O12. where X = Fe2 ,Mg,Ca,Mn Y = Al,Fe3 ,Cr3 ... (after conversion to mullite) ceramics, abrasives, fillers ...
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Convergent plate boundaries Most metamorphism is focused at plate boundaries Orogens are commonly poly metamorphic: multiple episodes P-T-t paths
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P-T evolution = tectonic evolution ... Dora Maira Massif in Alps, UHP as lenses in schists: coesite, pyrope, kyanite. 1. UHP-T-t path ...
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ERTH 2002. Mineral of the Week (MoW): olivine. 2. pyroxene. 3. feldspar ... biaxial ve or ve. mod biref. green to brown. interference colour range. act & hbl ...
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