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Phase Relations in the System Leucite-Akermanite-Albite-SiO2

  • Alok Krishna Gupta
Chapter
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

In certain ultrapotassic petrographic provinces such as Somma-Vesuvius (Savelli, 1967, Cioni et al. 1995), Coli-Albani (Aurisicchio et al., 1988) and Vico, all localities from Italy (Cundari and Mattias, 1974), Bufumbira region of East Africa (Holmes and Harwood, 1937; Rogers et al. 1998) and Highwood Mountains, Montana , U.S.A. (O`Brien et al. 1991), leucite-bearing SiO2 -undersaturated rocks are associated with highly silicic, potassium-rich (K2O ≥ 3 wt%) feldspathic rocks.

Keywords

Alkali Feldspar Incompatibility Problem Primary Phase Field Piercing Point Subsolidus Phase Relation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Mineralogy & PetrologyUniversity of AllahabadAllahabadIndia

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