2006-07-19 12:50:00 · 3 answers · asked by Bruce M 1 in Science & Mathematics ➔ Earth Sciences & Geology
I-types, S-types; trondhjemites to granodiorites, monzanites, syenites, and even tonalites...No Problem!
But I can't even find K-, P-, or BM in my petrology textbook, and I'm looking at it right now! The really frustrating part it is, I'm SURE I know this...just can't seem to remember. Drat!
This will be one of those "Oh, yeah!" things that hits at about 3 in the morning. Sorry I can't help.
UGH!!
2006-07-19 13:17:01 · answer #1 · answered by stevenB 4 · 0⤊ 0⤋
S and I are the only types I know of. I think you must be thinking of Plagioclase vs. K-Feldspar as the K and P.
2006-07-19 23:48:41 · answer #2 · answered by QFL 24-7 6 · 0⤊ 0⤋
"I", "S" and "A" type granites....yes. Those others you mentioned....I tend to agree with the others on this one.
2006-07-20 01:23:18 · answer #3 · answered by ozzie35au 3 · 0⤊ 0⤋