petrogenesisn.
/ˌpɛtrə(ʊ)ˈdʒɛnᵻsɪs/, U.S. /ˌpɛtroʊˈdʒɛnəsəs/ Geology.
The formation of rocks, esp. igneous and metamorphic rocks. Also: the branch of geology concerned with this.
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the world > the earth > structure of the earth > formation of features > formation of rock or stone > [noun]
petrifaction?a1425
petrification1611
lapidification1626
lapidescence1649
petrescency1662
petrifying1712
petrescence?1797
lithification1872
petrogenesis1886
lithogeny1888
lithifaction1893
lithogenesis1909
petrogeny1937
the world > the earth > earth sciences > geology > [noun] > petrology or petrography > petrogeny
petrogenesis1886
lithogeny1888
petrogeny1888
lithogenesis1909
1886 Amer. Naturalist 20 1047 The subject of metamorphism has received considerable attention and also the theories relating to ‘petrogenesis’, or the origin of rocks.
1911 Geol. Mag. 8 248 (heading) The fundamental problems of petrogenesis, or the origin of the igneous rocks.
1960 Times 13 Feb. 8/4 Lyell Medal to Dr. Doris Reynolds for her work on the rocks of Northern Ireland and her contributions to petrogenesis.
1989 Nature 11 May 109/2 Marjorie Wilson has come to the rescue with a challenging book which looks at igneous petrogenesis from both physical and chemical viewpoints.
1990 Jrnl. Petrol. 31 669 The petrogenesis of the granulites is not yet fully understood but they appear to have formed from cumulates in the root of a magma chamber of the arc.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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n.1886