The formation of rocks, esp. igneous and metamorphic rocks. Also: the branch of geology concerned with this.
| 单词 | θ7613 |
| 释义 | the world > the earth > earth sciences > geology > [noun] > petrology or petrography > petrogeny (4) petrogenesis1886 The formation of rocks, esp. igneous and metamorphic rocks. Also: the branch of geology concerned with this. lithogeny1888 (a) the formation of calculi (New Sydenham Soc. Lexicon 1889); (b) Geology (rare) = lithogenesis n. above. petrogeny1888 = petrogenesis, n. Frequently in petrogeny's residua system, a liquid system consisting of the molten oxides of aluminium, sodium, potassium, and… lithogenesis1909 |
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