propyliten.

Brit.

/ˈprɒpᵻlʌɪt/, U.S.

/ˈprɑpəˌlaɪt/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρόπυλον , -ite suffix¹.

Etymology: < ancient Greek πρόπυλον propylon n. + -ite suffix¹; so named by F. von Richthofen (see quot. 1868) as opening the Tertiary period.

Geology.

A hydrothermally altered andesite or dacite resembling greenstone, typically containing calcite, chlorite, and quartz.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte > varieties of

rhyolite1861

nevadite1868

propylite1868

trachyte tuff1885

ciminite1896

grorudite1896

hedrumite1896

kenyte1900

mugearite1904

1868 F. von Richthofen in Mem. Calif. Acad. Sci. 1 ii. 20 Order Third—Propylite... Breithaupt established a new name, ‘Timacite’, for a variety of our propylite, which is of very limited occurrence.

1889 Q. Jrnl. Geol. Soc. 45 201 I hope shortly to be able to describe some of the chief types of these rocks,..their altered forms (the ‘propylites’), and their Plutonic representatives (diorites and quartz-diorites).

1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) v. 97 After hydrothermal attack the greenstone is hardly distinguishable from propylite, derived from andesite.

1992 Geol. Pacific Ocean 9 485 The mineral zones are presented in order of their succession, between the propylites and the monoquartzites.

Derivatives

propyˈlitic adj. of, relating to, or containing propylite.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > trachyte > varieties of

rhyolitic1864

propylitic1868

mugearitic1911

1868 Mem. Calif. Acad. Sci. 1 ii. 22 The forms of propylitic mountains can be observed only in rare instances.

1911 Geogr. Jrnl. 38 279 Only the South Shetland group in the south forms an isolated, extreme zone of basic and partly propylitic volcanic rocks.

1965 G. J. Williams Econ. Geol. N.Z. i. 3/2 The former being the host-rock of the formerly important propylitic Hauraki gold-silver province.

1992 European Jrnl. Mineral. 4 1439 Attempts to simulate the argillic facies were made by reacting the propylitic mineral assemblages and their coexisting fluids with certain imposed chemical variables.

This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	propylite
释义	propyliten. Brit. /ˈprɒpᵻlʌɪt/, U.S. /ˈprɑpəˌlaɪt/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρόπυλον , -ite suffix¹. Etymology: < ancient Greek πρόπυλον propylon n. + -ite suffix¹; so named by F. von Richthofen (see quot. 1868) as opening the Tertiary period. Geology. A hydrothermally altered andesite or dacite resembling greenstone, typically containing calcite, chlorite, and quartz. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte > varieties of rhyolite1861 nevadite1868 propylite1868 trachyte tuff1885 ciminite1896 grorudite1896 hedrumite1896 kenyte1900 mugearite1904 1868 F. von Richthofen in Mem. Calif. Acad. Sci. 1 ii. 20 Order Third—Propylite... Breithaupt established a new name, ‘Timacite’, for a variety of our propylite, which is of very limited occurrence. 1889 Q. Jrnl. Geol. Soc. 45 201 I hope shortly to be able to describe some of the chief types of these rocks,..their altered forms (the ‘propylites’), and their Plutonic representatives (diorites and quartz-diorites). 1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) v. 97 After hydrothermal attack the greenstone is hardly distinguishable from propylite, derived from andesite. 1992 Geol. Pacific Ocean 9 485 The mineral zones are presented in order of their succession, between the propylites and the monoquartzites. Derivatives propyˈlitic adj. of, relating to, or containing propylite. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > trachyte > varieties of rhyolitic1864 propylitic1868 mugearitic1911 1868 Mem. Calif. Acad. Sci. 1 ii. 22 The forms of propylitic mountains can be observed only in rare instances. 1911 Geogr. Jrnl. 38 279 Only the South Shetland group in the south forms an isolated, extreme zone of basic and partly propylitic volcanic rocks. 1965 G. J. Williams Econ. Geol. N.Z. i. 3/2 The former being the host-rock of the formerly important propylitic Hauraki gold-silver province. 1992 European Jrnl. Mineral. 4 1439 Attempts to simulate the argillic facies were made by reacting the propylitic mineral assemblages and their coexisting fluids with certain imposed chemical variables. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1868
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