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The hydrogen, methane and ammonia biosphere on early Earth. [PDF]
Sci RepOhmoto H, Ferry JG.
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Linking carbonatites, rare earth ores, and subduction-fertilized mantle lithosphere. [PDF]
Sci AdvSpandler C, Merdith AS, Griffin A.
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Mechanistic insights and environmental ramifications of Cr(III) oxidation to Cr(VI) in soil and groundwater systems: bridging geochemical mechanisms and emerging remediation strategies. [PDF]
Environ Geochem HealthRasool A +9 more
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Surfactant Concentrations at Different Distances from the Injection Well. [PDF]
ACS OmegaLi J, Niu L, Zhang Y.
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Carbonatites and alkaline rocks
2021This session thematizes the formation, evolution and economic importance of carbonatites and alkaline rocks. These play an important role for our society, as they contain exceptional high levels of critical raw materials, such as REE, Nb, P and F, to name a few.
Marks , Michael A.W. +2 more
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Geological Society of America Bulletin, 1910
Definition Alkaline rocks include two classes: first, those relatively rich in soda, in potash, or in both; and, secondly, those which, with relatively low total of alkalies, yet carry essential amounts of minerals specially characteristic of alkali-rich eruptives, such as nephelite, leucite, analcite, etcetera.
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Definition Alkaline rocks include two classes: first, those relatively rich in soda, in potash, or in both; and, secondly, those which, with relatively low total of alkalies, yet carry essential amounts of minerals specially characteristic of alkali-rich eruptives, such as nephelite, leucite, analcite, etcetera.
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Potassic alkaline-basic and alkaline volcanic rocks of Southern Mongolia
International Geology Review, 1978(1978). Potassic alkaline-basic and alkaline volcanic rocks of Southern Mongolia. International Geology Review: Vol. 20, No. 12, pp. 1426-1440.
V. A. Baskina +3 more
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Nature, 1975
THE hypothesis of limestone assimilation1,2, developed to explain differentiation of the Vesuvius magma, was long unchallenged for that area—and extended3—even when it had to be abandoned for other alkaline provinces. Trace element data made it difficult to reconcile the limestone assimilation hypothesis with many observations4–7, but even in 1966 when
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THE hypothesis of limestone assimilation1,2, developed to explain differentiation of the Vesuvius magma, was long unchallenged for that area—and extended3—even when it had to be abandoned for other alkaline provinces. Trace element data made it difficult to reconcile the limestone assimilation hypothesis with many observations4–7, but even in 1966 when
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On the Origin of the Alkaline Rocks
The Journal of Geology, 1928The writer believes that the process of albitization, now known to be a common accompanying feature of granitic intrusion, furnishes a key to the genesis of alkaline rocks. The passage of emanations rich in soda and alumina, which albitization phenomena show have occurred, may in favorable instances have desilicated a granitic magma and so enriched it ...
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The genesis of the calc-alkaline rock suite
Earth and Planetary Science Letters, 1972Abstract The derivation of an island arc calc-alkaline suite from an alkaline parental magna source is suggested from petrological and mineralogical evidence in the Lesser Antilles. Possible sources are discussed, and a partial melt from the Upper Mantle, rather than a descending oceanic crustal plate preferred.
R.J. Arculus, E.B. Curran
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