Results 141 to 150 of about 1,651 (201)
From early Earth to Enceladus-mineral electrochemistry could drive organic synthesis. [PDF]
Velling SJ.
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Membrane-free electrochemical production of acid and base solutions capable of processing ultramafic rocks. [PDF]
Charnay BP +8 more
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Alteration history of aluminum-rich rocks at Jezero crater, Mars. [PDF]
Broz AP +25 more
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Three-dimensional thermomechanical modelling beneath Guerrero, Mexico, and its relation to the occurrence of interplate seismic phenomena. [PDF]
Suenaga N +5 more
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Zircon behavior in the partially melted planetary mantle
Yakimenko A +3 more
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Geochimica et Cosmochimica Acta, 1953
Abstract Quantitative spectrochemical determinations of potassium in 50 specimens of ultramafic rock confirm the preliminary observation ( Ahrens , Pinson and Kearns , 1952) that the abundance of potassium in this rock type is much lower than has usually been assumed.
W Holyk, L.H Ahrens
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Abstract Quantitative spectrochemical determinations of potassium in 50 specimens of ultramafic rock confirm the preliminary observation ( Ahrens , Pinson and Kearns , 1952) that the abundance of potassium in this rock type is much lower than has usually been assumed.
W Holyk, L.H Ahrens
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Lichens and ultramafic rocks: a review
The Lichenologist, 2004Floristic, vegetational and ecological features of lichens in ultramafic environments are reviewed using a wide range of literature dating from the beginning of the 20th century. Co-presence of acidophytic (silicicolous) and basiphytic (calcicolous) species and the occurrence of species characterized by particular (disjunct) distribution patterns are ...
Sergio E. FAVERO-LONGO +2 more
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1972
The ultramafic rocks are composed mainly of dark-colored mafic or ferro-magnesian minerals such as olivine, pyroxene, amphibole, serpentine, garnet, biotite, and opaque oxides. They are usually, but not always, ultra-basic (having less than 45 percent SiO2).
Gunter Faure, James L. Powell
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The ultramafic rocks are composed mainly of dark-colored mafic or ferro-magnesian minerals such as olivine, pyroxene, amphibole, serpentine, garnet, biotite, and opaque oxides. They are usually, but not always, ultra-basic (having less than 45 percent SiO2).
Gunter Faure, James L. Powell
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Metamorphism of Ultramafic Rocks
1994Ultramafic rocks are magnesium silicate rocks that normally contain no felsic minerals or very little (
Kurt Bucher, Martin Frey
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