Definitions and Nomenclature

  • Daniel Müller
  • David I. Groves
Part of the Lecture Notes in Earth Sciences book series (LNEARTH, volume 56)


Potassic igneous rocks were originally recognized in the late 19th century by Iddings (1895), who described some orthoclase-bearing basalts from the Yellowstone Park, Wyoming, and coined the term “shoshonite”. In the last century, petrologists generated many names for potassic igneous rocks which were either based on their mineralogy or, more commonly, based on the locality of their occurrence. The practice was to name a new rock after a place where it occurred — the type locality. These different names for essentially similar rocks from different localities led to great confusion (Sørensen 1974; De Wit 1989; Rock 1991; Peccerillo 1992).


Igneous Rock East African Rift Porphyritic Texture Ultrapotassic Rock Roman Province 
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.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Daniel Müller
    • 1
  • David I. Groves
    • 2
  1. 1.Placer International Exploration Inc.Las Condes, SantiagoChile
  2. 2.Key Centre for Strategic Mineral Deposits, Department of Geology and GeophysicsThe University of Western AustraliaNedlandsAustralia

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