shonkiniten.

/ˈʃɒŋkɪnʌɪt/

Etymology: < Shonkin, Indian name for the Highwood Mountains, Montana + -ite suffix¹.

Geology.

A dark granular form of syenite consisting largely of augite and orthoclase.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > syenite > varieties of

miaskite1840

uralite-syenite1868

foyaite1878

nepheline-syenite1885

pulaskite1891

nordmarkite1892

larvikite1895

shonkinite1895

1895 Weed & Pirsson in Bull. Geol. Soc. Amer. VI. 415 For this type of rock, then, we propose the name of shonkinite,..and shonkinite we define as a granular plutonic rock consisting of essential augite and orthoclase, and thereby related to the syenite family.

a1928 B. N. Peach & J. Horne Chapters Geol. Scotl. (1930) iv. 112 A discontinuous zone of fine-grained shonkinite and pulaskite.

1951 F. J. Turner & J. Verhoogen Igneous & Metamorphic Petrol. viii. 169 The syenite undoubtedly is a differentiate derived from a parent shonkinite magma.

1978 S. R. Nockolds et al. Petrol. for Students v. 61 Other shonkinites from the Highwood Mountains and from the Bearpaw Mountains, Montana, may have a little plagioclase.

Derivatives

shonkiˈnitic adj. having the character or consisting of shonkinite.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > plutonic > syenite

syenitic1799

shonkinitic1900

nordmarkitic1938

1900 Bull. Geol. Soc. Amer. 11 395 The relations of the ‘fine grained’ (shonkinitic) syenite to the leucite-porpyhry are uncertain.

1930 B. N. Peach & J. Horne Chapters Geol. Scotl. 113 The degree of alteration is less in the more shonkinitic patches.

1943 S. J. Shand Eruptive Rocks (ed. 2) xiv. 259 There are no lavas of shonkinitic composition.

This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2021).

单词	shonkinite
释义	shonkiniten. /ˈʃɒŋkɪnʌɪt/ Etymology: < Shonkin, Indian name for the Highwood Mountains, Montana + -ite suffix¹. Geology. A dark granular form of syenite consisting largely of augite and orthoclase. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > syenite > varieties of miaskite1840 uralite-syenite1868 foyaite1878 nepheline-syenite1885 pulaskite1891 nordmarkite1892 larvikite1895 shonkinite1895 1895 Weed & Pirsson in Bull. Geol. Soc. Amer. VI. 415 For this type of rock, then, we propose the name of shonkinite,..and shonkinite we define as a granular plutonic rock consisting of essential augite and orthoclase, and thereby related to the syenite family. a1928 B. N. Peach & J. Horne Chapters Geol. Scotl. (1930) iv. 112 A discontinuous zone of fine-grained shonkinite and pulaskite. 1951 F. J. Turner & J. Verhoogen Igneous & Metamorphic Petrol. viii. 169 The syenite undoubtedly is a differentiate derived from a parent shonkinite magma. 1978 S. R. Nockolds et al. Petrol. for Students v. 61 Other shonkinites from the Highwood Mountains and from the Bearpaw Mountains, Montana, may have a little plagioclase. Derivatives shonkiˈnitic adj. having the character or consisting of shonkinite. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > plutonic > syenite syenitic1799 shonkinitic1900 nordmarkitic1938 1900 Bull. Geol. Soc. Amer. 11 395 The relations of the ‘fine grained’ (shonkinitic) syenite to the leucite-porpyhry are uncertain. 1930 B. N. Peach & J. Horne Chapters Geol. Scotl. 113 The degree of alteration is less in the more shonkinitic patches. 1943 S. J. Shand Eruptive Rocks (ed. 2) xiv. 259 There are no lavas of shonkinitic composition. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2021). < n.1895
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