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Redox in Magmas: Comment on a Recent Treatment of the Kaiserstuhl Volcanics (Braunger et al., Journal of Petrology, 59, 1731–1762, 2018) and Some Other Misconceptions
Journal of Petrology ( IF 3.9 ) Pub Date : 2019-10-29 , DOI: 10.1093/petrology/egz046
Michael Anenburg 1 , Hugh St. C O’Neill 1
Affiliation  

The recent contribution by Braunger et al. (2018) provides a thorough petrographic and geochemical description of peralkaline and carbonatitic igneous rocks from the Kaiserstuhl Volcanic Complex, SW Germany (KVC). These data are used to calculate several intensive variables: temperature (T), pressure (P), silica activity (aSiO2), and oxygen fugacity (fO2), which are then applied to constrain the petrogenesis of the different KVC magma series, including identifying features of their source with an emphasis on redox conditions. Using a variety of thermodynamic equilibria, Braunger et al. (2018) showed that the redox states of the various silicate KVC magmas in intensive-variable space follow...

中文翻译:

岩浆中的氧化还原:对凯撒斯图尔火山的近期治疗方法的评论(Braunger等人,《石油学杂志》,第59期,1731-1762年,2018年)和其他一些误解

Braunger等人最近的贡献(2018)提供了德国西南部Kaiserstuhl火山综合体(KVC)中的碱性和碳酸盐岩火成岩的岩石学和地球化学描述。这些数据被用于计算几个密集变量:温度(Ť),压力(P),二氧化硅活性(的SiO 2)和氧逸度(˚F Ò 2),然后将其施加到约束不同KVC岩浆的成因系列,包括确定其来源特征,重点是氧化还原条件。利用各种热力学平衡,Braunger等。 (2018)表明,在强变空间中各种硅酸盐KVC岩浆的氧化还原态遵循...
更新日期:2020-04-17
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