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Geochemical aspects of some accumulation models for primary magmas

Maaløe, Sven and Johnston, A. Dana (1986) Geochemical aspects of some accumulation models for primary magmas. Contributions to Mineralogy and Petrology, 93 (4). pp. 449-458. ISSN 0010-7999. doi:10.1007/bf00371715.

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The compositions of primary magmas depend to some degree on the dynamic processes occurring in the partially molten region of the mantle. The compositional dependence is estimated for three models which assume either accumulation from a migmatized source region or accumulation entirely by the interstitial flow of magma. Accumulation from a migmatised region results in magmas with higher concentrations of incompatible elements than does batch melting, whereas accumulation by interstitial flow results in magmas with lower concentrations of these elements. The concentrations of refractory elements are almost independent of both the accumulation process and the degree of partial melting and are therefore usefull for the identification of primary magmas.

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Additional Information:© 1986 Springer-Verlag. Received 13 August 1985; Accepted 10 March 1986.
Subject Keywords:Mineral Resource; Dynamic Process; Partial Melting; Source Region; Accumulation Process
Issue or Number:4
Record Number:CaltechAUTHORS:20191002-143644135
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Official Citation:Maaløe, S. & Johnston, A.D. Contr. Mineral. and Petrol. (1986) 93: 449.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99027
Deposited By: Tony Diaz
Deposited On:02 Oct 2019 21:52
Last Modified:16 Nov 2021 17:43

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