hypogene

American  

[hahy-puh-jeen, hip-uh-] / ˈhaɪ pəˌdʒin, ˈhɪp ə- /

adjective

Geology.

1. formed beneath the earth's surface, as granite (opposed to epigene).

2. formed by ascending solutions, as mineral or ore deposits (opposed to supergene).

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hypogene British  

/ ˌhaɪpəˈdʒɛnɪk, ˈhaɪpəˌdʒiːn /

adjective

1. formed, taking place, or originating beneath the surface of the earth Compare epigene

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Other Word Forms

Derived Forms

• hypogenic
  adjective

Etymology

Origin of hypogene

1825–35; hypo- + -gene, variant of -gen

Example Sentences

Hornblende, so common in hypogene rocks, or those commonly called "primary," is rare in modern lava; nor does it enter largely into rocks of any age in which augite abounds.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir

They traverse all kinds of rocks, both hypogene and fossiliferous, and extend downward to indefinite or unknown depths.

From The Student's Elements of Geology by Lyell, Charles, Sir

But if we investigate different mountain chains, we find gneiss, mica-schist, hornblende-schist, chlorite-schist, hypogene limestone, and other rocks, succeeding each other, and alternating with each other in every possible order.

From The Student's Elements of Geology by Lyell, Charles, Sir

Lyell, Charles, investigations on the numerical relations of extinct and organic life, 274, 275; nether-formed or hypogene rocks, 249; uniformity of the production of erupted rocks, 257.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Humboldt, Alexander von

The principal effect of subterranean movements during the Tertiary Period seems to have consisted in the upheaval of hypogene formations of an age anterior to the Carboniferous.

From The Student's Elements of Geology by Lyell, Charles, Sir