orthotectonicadj.

Brit.

/ˌɔːθə(ʊ)tɛkˈtɒnɪk/, U.S.

/ˈˌɔrθoʊtɛkˈtɑnɪk/

Origin: A borrowing from German, combined with English elements. Etymons: ortho- comb. form, tectonic adj., German Orthotektonik.

Etymology: < ortho- comb. form + tectonic adj. With sense 1 compare German Orthotektonik, noun (H. Stille Einführung in den Bau Amerikas (1940) i. 9).

Geology.

1. Relating to or formed by a kind of deformation associated with an orthogeosyncline, producing complicated systems of fold belts (such as those of the Alps) and characterized by much magmatism and lateral thrusting; cf. paratectonic adj. 2. Now rare.

ΘΚΠ

the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [adjective] > tectogenesis

tectogenic1937

orthotectonic1956

paratectonic1956

tectogenetic1975

1956 L. U. de Sitter Struct. Geol. i. 16 A later uplift, separated from the last orogenic paroxysmal phase by a period of erosion, is typical of orthotectonic regions.

2. Denoting or relating to an orogenic belt developed at the margin of a continent adjacent to a destructive plate boundary. Cf. paratectonic adj. 3.

ΚΠ

1969 J. F. Dewey in Earth & Planetary Sci. Lett. 6 191/2 It is suggested that orogens are of two types, orthotectonic and paratectonic. Orthotectonic orogens develop early in the Pacific Phase from a continental rise built during the Atlantic Phase, and paratectonic orogens during the final stages of the Mediterranean Phase.

1969 J. F. Dewey in Earth & Planetary Sci. Lett. 6 191/2 Orthotectonic orogens such as the Andes lie on seismically active continental margins and are characterized by a deep Mohorovicic discontinuity and a thick intermediate layer with high seismic velocities..similar to those of the oceanic crust.

1984 Philos. Trans. (Royal Soc.) A. 310 710 The peak Grampian tectonic activity, which was diachronous from northeast to southwest across the orthotectonic Caledonides.

2002 Lithos 62 65 (title) Slab breakoff: a model for Caledonian, Late Granite syn-collisional magmatism in the orthotectonic (metamorphic) zone of Scotland and Donegal, Ireland.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthotectonic
释义	orthotectonicadj. Brit. /ˌɔːθə(ʊ)tɛkˈtɒnɪk/, U.S. /ˈˌɔrθoʊtɛkˈtɑnɪk/ Origin: A borrowing from German, combined with English elements. Etymons: ortho- comb. form, tectonic adj., German Orthotektonik. Etymology: < ortho- comb. form + tectonic adj. With sense 1 compare German Orthotektonik, noun (H. Stille Einführung in den Bau Amerikas (1940) i. 9). Geology. 1. Relating to or formed by a kind of deformation associated with an orthogeosyncline, producing complicated systems of fold belts (such as those of the Alps) and characterized by much magmatism and lateral thrusting; cf. paratectonic adj. 2. Now rare. ΘΚΠ the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [adjective] > tectogenesis tectogenic1937 orthotectonic1956 paratectonic1956 tectogenetic1975 1956 L. U. de Sitter Struct. Geol. i. 16 A later uplift, separated from the last orogenic paroxysmal phase by a period of erosion, is typical of orthotectonic regions. 2. Denoting or relating to an orogenic belt developed at the margin of a continent adjacent to a destructive plate boundary. Cf. paratectonic adj. 3. ΚΠ 1969 J. F. Dewey in Earth & Planetary Sci. Lett. 6 191/2 It is suggested that orogens are of two types, orthotectonic and paratectonic. Orthotectonic orogens develop early in the Pacific Phase from a continental rise built during the Atlantic Phase, and paratectonic orogens during the final stages of the Mediterranean Phase. 1969 J. F. Dewey in Earth & Planetary Sci. Lett. 6 191/2 Orthotectonic orogens such as the Andes lie on seismically active continental margins and are characterized by a deep Mohorovicic discontinuity and a thick intermediate layer with high seismic velocities..similar to those of the oceanic crust. 1984 Philos. Trans. (Royal Soc.) A. 310 710 The peak Grampian tectonic activity, which was diachronous from northeast to southwest across the orthotectonic Caledonides. 2002 Lithos 62 65 (title) Slab breakoff: a model for Caledonian, Late Granite syn-collisional magmatism in the orthotectonic (metamorphic) zone of Scotland and Donegal, Ireland. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < adj.1956
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