| 单词 |
petrology |
| 释义 |
petrology|pɪˈtrɒlədʒɪ|
[f. Gr. πέτρα rock + -ology: orig. formed erron. as petralogy.]
a. That branch of geology which deals with the origin, structure, and composition of rocks.
1811Pinkerton (title) Petralogy, A Treatise on Rocks. 1876Page Adv. Text-bk. Geol. xx. 440 The whole petralogy of the period..is a thing taking place beneath and around us. 1876Academy 21 Oct. 410/3 German monographs dealing with microscopic petrology.
b. The petrological features of something or somewhere.
1880Nature XXI. 259 A valuable memoir on the petrology of Rodriguez by Mr. N. S. Maskelyne. 1954Geol. Mag. XCI. 44 (heading) Further data on the petrology of the pelitic hornfelses of the Carn Chuinneag-Inchbae region, Ross-shire. 1975Sci. Amer. Jan. 29/1 The mineralogy, the content of trace elements and gas, the petrology and so on of literally hundreds of different meteorites have been measured.
So petroˈlogic (chiefly U.S.), petroˈlogical adjs., pertaining or relating to petrology; petroˈlogically adv., in relation to petrology; peˈtrologist, one versed in petrology; one who studies rocks scientifically.
1811Pinkerton Petralogy I. p. xvii, This unavoidable uncertainty has been well illustrated by the greatest of petralogists. 1814Edin. Rev. XXIII. 64 By reading through this petralogical performance. 1845Newbold in Jrnl. Asiat. Soc. Bengal XIV. i. 283 The schists..of Kittoor resemble, petrologically, the jaspideous schists of Bellary and Sondur. 1864J. B. Jukes in Reader IV. 678/2 The lithological composition and petrological structure of the rocks immediately beneath it. 1874Lyell Elem. Geol. xxviii. 497 Rocks containing an excess of silica are termed by many Petrologists acid rocks. 1879Webster, Suppl., Petrologic, pertaining to petrology, or the science or investigation of rocks. 1936H. L. Alling Interpretative Petrol. Igneous Rocks p. vii, The portions of the book devoted to petrologic history. 1972Science 3 Nov. 497/1 Approximately one-third of the book is devoted to mineralogic and petrologic attributes of sandstones. |
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