Reply to comments by Taylor and Neal on "Trace element crystal chemistry of mantle eclogites"
Article Abstract:
The dearth of data on the rare earth element (REE) distribution in clinopyroxene melts limits the numerical modeling of trace elements for pyroxene fractionation. A recent study on the crystal chemistry of mantle eclogites discounted the results of previous investigations on crytal-liquid partitioning of REE in basaltic systems due to inadequate controls on oxygen fugacity and hydrogen activity. The study favored the clinopyroxene-liquid partitioning in grospydites because it accounted for the chemical and physical characteristics of the mantle eclogites.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1993
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Silicic magmas from the continental Cameroon Volcanic Line (Oku, Bambouto and Ngaoundere): 40Ar-39Ar dates, petrology, Sr-Nd-O isotopes and their petrogenic significance
Article Abstract:
Sr-Nd-O isotopic, goechemical and 40Ar-39Ar geochronological data on the silicic volcanic centers of the western and eastern portions of the Cameroon Volcanic Line (CVL) were analyzed to determine their silicic volcanism. The western portion of the CVL is composed of Mt Oku, Sabga and Mt Bambouto, while the eastern part is the Ngoundere plateau. The ages of the silicic melts and the silicic volcanism the Ngoundere plateau indicate that the whole CVL may not be easily considered as the surface expression of hot spot magmatism.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1999
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