magmatismn.

Brit.

/ˈmaɡmətɪz(ə)m/, U.S.

/ˈmæɡməˌtɪzəm/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin magmat- , magma , -ism suffix.

Etymology: < classical Latin magmat-, magma magma n. + -ism suffix, after magmatist n. Compare French magmatisme in sense 2 (c1960).

Geology.

1. The theory advocated by magmatists. rare.

ΘΚΠ

the world > the earth > earth sciences > theory of formation of earth > [noun] > internal heat

volcanism1811

vulcanism1819

plutonism1842

undation theory1932

magmatism1948

1948 Q. Jrnl. Geol. Soc. 103 140 Dr. Reynolds ‘tolls the knell’ of the passing theory of ‘magmatism’ as an all-embracing explanation of the origin of all plutonic rocks.

1948 Q. Jrnl. Geol. Soc. 103 141 A new era in petrogeny, an era in which ‘magmatism’ will become incorporated with ‘transformism’, plutonic processes will become closely linked with metamorphic processes, and petrogenesis..will become an integral part of a wider science of geochemistry.

2. Motion or solidification of magma; magmatic activity.

ΘΚΠ

the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > upwelling of magma

magmatism1952

sea-floor spreading1961

pulse1964

ocean-floor spreading1965

plume1967

the world > the earth > structure of the earth > formation of features > metamorphism > [noun] > magmatism

plutonism1879

piezo-crystallization1895

assimilation1903

palingenesis1907

syntexis1911

rheomorphism1937

magmatism1952

1952 H. Ramberg Origin Metamorphic & Metasomatic Rocks 3 (heading) Natural boundary between metamorphism and magmatism.

1974 Nature 19 Apr. 650/1 Seismicity, tectonism and magmatism are now concentrated near plate margins.

1992 S. P. Maran Astron. & Astrophysics Encycl. 454/2 The early global magmatism was largely completed by about 4.3 billion years ago.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	magmatism
释义	magmatismn. Brit. /ˈmaɡmətɪz(ə)m/, U.S. /ˈmæɡməˌtɪzəm/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin magmat- , magma , -ism suffix. Etymology: < classical Latin magmat-, magma magma n. + -ism suffix, after magmatist n. Compare French magmatisme in sense 2 (c1960). Geology. 1. The theory advocated by magmatists. rare. ΘΚΠ the world > the earth > earth sciences > theory of formation of earth > [noun] > internal heat volcanism1811 vulcanism1819 plutonism1842 undation theory1932 magmatism1948 1948 Q. Jrnl. Geol. Soc. 103 140 Dr. Reynolds ‘tolls the knell’ of the passing theory of ‘magmatism’ as an all-embracing explanation of the origin of all plutonic rocks. 1948 Q. Jrnl. Geol. Soc. 103 141 A new era in petrogeny, an era in which ‘magmatism’ will become incorporated with ‘transformism’, plutonic processes will become closely linked with metamorphic processes, and petrogenesis..will become an integral part of a wider science of geochemistry. 2. Motion or solidification of magma; magmatic activity. ΘΚΠ the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > upwelling of magma magmatism1952 sea-floor spreading1961 pulse1964 ocean-floor spreading1965 plume1967 the world > the earth > structure of the earth > formation of features > metamorphism > [noun] > magmatism plutonism1879 piezo-crystallization1895 assimilation1903 palingenesis1907 syntexis1911 rheomorphism1937 magmatism1952 1952 H. Ramberg Origin Metamorphic & Metasomatic Rocks 3 (heading) Natural boundary between metamorphism and magmatism. 1974 Nature 19 Apr. 650/1 Seismicity, tectonism and magmatism are now concentrated near plate margins. 1992 S. P. Maran Astron. & Astrophysics Encycl. 454/2 The early global magmatism was largely completed by about 4.3 billion years ago. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1948
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