Lexic.us

Definition of Igneous rock

1. Noun. Rock formed by the solidification of molten magma.

Definition of Igneous rock

1. Noun. (geology) one of the major groups of rock that makes up the crust of the Earth; formed by the cooling of molten rock, either below the surface (intrusive) or on the surface (extrusive) ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Igneous Rock

Literary usage of Igneous rock

Below you will find example usage of this term as found in modern and/or classical literature:

1. Science by American Association for the Advancement of Science (1910)
"... yield a serviceable estimate of the average igneous rock for the whole state. ... igneous rock ..."

2. Military Geology and Topography: A Presentation of Certain Phases of Geology by Herbert Ernest Gregory (1918)
"GLOSSARY OF igneous rock TERMS. As igneous rocks are designated in geologic maps ... Amygdaloid, cellular lava, igneous rock of fine texture with cavities, ..."

3. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"It ¡8 evident that one of these intercalated intrusive sheets of igneous rock must present such points of resemblance to a truly contemporaneous bed of lava ..."

4. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"In still other cases the igneous rock has heated the ordinary ground water, thus giving it a greater power of dissolving mineral matter and rendering it ..."

5. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1911)
"Sach modifications in the igneous rock at its contacts are often иИ to be ... The hard igneous rock has proved more rigid than the soft and plastic ..."

6. Metamorphic Geology: A Text-book by Charles Kenneth Leith, Warren Judson Mead (1915)
"The proportion of sediments to ocean salts may be approximated in the following manner: 100 grams of average igneous rock contain 3.47 grams of Na^O. A ..."

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