classificazione rocce intrusive rocce intrusive.pdfcontents using the q ap f diagraxn (based...

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From:  Le  Maitre  (Ed),  1989.    A  classifica;on  of  Igneous  Rocks  and  Glossary  of  Terms  -­‐  Recommenda;ons  of  the  Interna;onal  Union  of  Geological  Sciences,  Subcommission  on  Systema;cs  of  Igneous  Rocks.  Blackwell  Sci.  Publ.  193  pp.    

English  

“Percentage  es/ma/on  comparison  charts”  From:  “Petrography  of  Igneous  and  Metamorphic  Rocks”  (PhilpoRs,  1989).  

Italiano  

Classificazione    rocce  gabbroidi

M < 10 % = anortosite M > 10 % & An(plag) > 50 = gabbro M > 10 % & An(plag) < 50 = diorite

Classificazione    rocce  ultramafiche  

(M  >  90%)  

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