| | Book | orangeites) belong to a clan of ultrapotassic, peralkaline volatile-rich (dominantly H2O) rocks, characterized...+ Na2O) / Al2O 3 typically > 1, i.e they are peralkaline (4) typically FeO and CaO are both < 10%, TiO...Subcommission, however, recommends that the term peralkaline granite be used instead for those rocks that...syenite) — the general term agpaite may be used for peralkaline varieties characterized by complex Zr and Ti...corresponds with alkali feldspar granite. The term peralkaline rhyolite, in preference to alkali rhyolite, can | | | Book (volume) | Jahrbuch fur Mineralogie ABH; Springer-Verlag (Germany) for diagrams from Contributions to Mineralogy...nodules of the basalts of the Kassel area, West Germany (Gramse, 1970) are related to the type of basalt...1970). In the pigeonite andesite, Weiselberg, Germany, hypersthene and ferrohypersthenes (Ca4 Mg 54 Fe42-Ca4...study of a pigeonite andesite from Weiselberg, Germany. Amer. Min., 55, 1999- 2015. Nakamura, Y. and Kushiro...Permian tholeiites from the Saar-Nahe trough, S.W. Germany. Contr. Min. Petr., 40, 327- 344. Nicolas, A., |
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