Qapf Diagram Shopping
Diagram 		 

Information About

Qapf Diagram
  CATEGORIES ABOUT QAPF DIAGRAM
   
petrology
   
igneous rocks
   
SHOPPER'S DELIGHT
 
Shop For:  
Department
Price Minimum:
Price Maximum:
      



QAPF diagrams are mostly used to classify s and Pyroxenite s).

An exact name can be given only if the mineralogical composition is known, which cannot be determined in the field. Therefore, provisional or field classifications (Figures 3 and 4) are used, which are simplified versions of Figures 1 and 2.

QAPF diagrams were created by the International Union Of Geological Sciences (IUGS): ''Subcommission on the Systematics of Igneous Rocks''. The diagrams are accepted by geologists worldwide as a classification of igneous, especially plutonic rocks.




REFERENCES

  • Streckeisen, A. L., 1974. Classification and Nomenclature of Plutonic Rocks. Recommendations of the IUGS Subcommission on the Systematics of Igneous Rocks. Geologische Rundschau. Internationale Zeitschrift für Geologie. Stuttgart. Vol.63, p.773-785.

  • Streckeisen, A. L., 1978. IUGS Subcommission on the Systematics of Igneous Rocks. Classification and Nomenclature of Volcanic Rocks, Lamprophyres, Carbonatites and Melilite Rocks. Recommendations and Suggestions. Neues Jahrbuch für Mineralogie, Abhandlungen, Vol. 141, 1-14.



EXTERNAL LINKS