igneous rock


  • WordNet 3.6
    • n igneous rock rock formed by the solidification of molten magma
    • ***


In literature:

Upon the shore he found an out-cropping of brittle, igneous rock.
"The Beasts of Tarzan" by Edgar Rice Burroughs
The deposition of ores of igneous source in the country rock into which the igneous rocks are intruded is a phase of contact metamorphism.
"The Economic Aspect of Geology" by C. K. Leith
Igneous rocks, while still molten, have been forced into other rocks from below, or poured out on the surface from volcanoes.
"Boy Scouts Handbook" by Boy Scouts of America
Several pieces of shale lay exposed under a fold of igneous rock.
"The Long Voyage" by Carl Richard Jacobi
Great rents had been formed, igneous rocks had boiled up through them; and then in a grand, titanic effort the fire had forced its way up.
"Silver and Gold" by Dane Coolidge
Many altered igneous rocks owe their green colour to the presence of secondary chlorite.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3" by Various
A group, whether of alluvial deposits, sedimentary strata, or igneous rocks, referred to a common origin or period.
"Principles of Geology" by Charles Lyell
The igneous rocks present a considerable range of composition.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6" by Various
Were this the fact, igneous rock should be found about it.
"The Geography of the Region about Devils Lake and the Dalles of the Wisconsin" by Rollin D. Salisbury
The other kinds of rocks are known as igneous rocks, which have been melted under the action of heat and become solid on cooling.
"Cornwall" by Sabine Baring-Gould

In news:

Curiosity rover finds specimen that resembles earthly igneous rocks, never before observed on Mars.

In science:

Takeuchi, B. W.S. Lau, Electric Currents Streaming out of Stressed Igneous Rocks – A Step Towards Understanding Pre-Earthquake Low Frequency EM Emissions, Special Issue “Recent Progress in Seismo Electromagnetics”, Guest Editors M.
Skopje and Sofia 2005 Earthquake and Geomagnetic data and the Geomagnetic Quake as Imminent Reliable Earthquakes Precursor