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出典:Wiktionary
From petro- + -logy.
petrology (usually uncountable, 複数形 petrologies)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/30 20:40 UTC 版)
Petrology (from Greek: πέτρα, petra, rock; and λόγος, logos, knowledge) is the branch of geology that studies rocks, and the conditions in which rocks form.
petrology