Results 121 to 130 of about 704,528 (294)
Olivine-chrome-spinel equilibrium in chromitites and ultramafites of Rai-Iz massif, Polar Urals
Литосфера, 2016 Olivine and chrome-spinel compositions from chromitites and ore-bearing metamorphosed ultramafic rocks of Rai-Iz massif were compared. It was established that olivine and spinel ferruginosity are directly proportional and increase monotonically from ...
P. B. Shirjaev, N. V. Vakhrusheva
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Interpretation of Carbonate-Rock Sequences; Sedimentary or Metamorphic Models?: ABSTRACT
, 1976 Brian W. Logan
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Cathodoluminescence of shocked quartz at the Cretaceous-Tertiary boundary [PDF]
Empirical studies have documented an association between rock type and the cathodoluminescence color of constituent quartz grains. Quartz from extrusive igneous sources luminesces uniform pale blue.
Anders, Mark H., Owen, Michael R.
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An overview of the Cenozoic tectonic and magmatic evolution of Sonora, northwestern Mexico
Revista Mexicana de Ciencias Geológicas, 2018 Cenozoic rocks are widely distributed in Sonora, with igneous rocks being the most abundant, followed by clastic rock. Metamorphic rocks, even though minor, have great significance in the geologic history of this area… in order to continue, download the
Francisco Javier Grijalva-Noriega +1 more
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The Composition of Zircon and Igneous and Metamorphic Petrogenesis
, 2003 P. Hoskin, U. Schaltegger
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This hands-on activity covers the basics of rock identification. After a brief discussion of the terms 'rock' and 'mineral', students will study the characteristics and classifications of the three major rock groups (igneous, metamorphic, and sedimentary)
John Pratte
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Correction for Kohn et al., Shear heating reconciles thermal models with the metamorphic rock record of subduction. [PDF]
Proc Natl Acad Sci U S A, 2019 europepmc +1 more source