File talk:Streckeisen Plutonic Rocks.svg

Streckeisen Plutonic Rocks Diagram - dividing line granite/granodiorite
I note this diagram has the granite/granodiorite dividing line at 85% Plagioclase:K-Feldspar. All other QAPF diagrams I can locate have this line at 65%. Perhaps this is a typo? Or was the line previosuly drawn at 85%? Huonville2710 (talk) 08:49, 7 May 2024 (UTC)