If the crystallization process occurs at the Earth's surface, the rocks created are called extrusive igneous rocks. From Wordnik.com. [Rock cycle] Reference
Igneous deposits produced by this feature are extrusive in nature. From Wordnik.com. [Formation of the Earth's crust] Reference
These features are volcanic and are produced by localized extrusive igneous activity. From Wordnik.com. [Physiography of the Earth's terrestrial surface] Reference
Magma that solidifies at the Earth's surface conceives extrusive or volcanic igneous rocks. From Wordnik.com. [Composition of rocks] Reference
Materials are also added to continental crust through intrusive and extrusive igneous activity. From Wordnik.com. [Formation of the Earth's crust] Reference
Granite is an example of an intrusive igneous rock, whereas basalt is an extrusive igneous rock. From Wordnik.com. [AP Environmental Science Chapter 3- The Solid Earth] Reference
Geologically, the Plateau is composed of Quaternary extrusive rocks, mostly rhyolite, basalt, and tuff. From Wordnik.com. [Ecoregions of Wyoming (EPA)] Reference
Hawaii is the only state whose land mass continues to expand into extrusive lava flows, mostly from Kilauea. From Wordnik.com. [CNN Transcript Feb 10, 2007] Reference
This magma then migrated upward through the crust to form intrusive and extrusive igneous features and deposits. From Wordnik.com. [Physiography of the Earth's terrestrial surface] Reference
This collision results in the folding and faulting of rock, igneous intrusive and extrusive activity, and metamorphism. From Wordnik.com. [Physiography of the Earth's terrestrial surface] Reference
The mountain ranges are a geologic mix of faulted limestone reefs, volcanoes and associated basalt, rhyolite, and tuff extrusive rocks. From Wordnik.com. [Ecoregions of Texas (EPA)] Reference
Its mix of granitic, sedimentary, metamorphic, and extrusive rocks contrasts with the predominantly volcanic rocks of the Cascades (4). From Wordnik.com. [Ecoregions of Oregon (EPA)] Reference
The Dissected High Lava Plateau ecoregion has alluvial fans, rolling plains, and shear-walled canyons that are cut into extrusive rocks. From Wordnik.com. [Ecoregions of Idaho (EPA)] Reference
They form when magma cools and crystallizes subsurface (intrusive igneous rocks) or lava cools and crystallizes on the surface (extrusive igneous rocks). From Wordnik.com. [AP Environmental Science Chapter 3- The Solid Earth] Reference
This “range” is dryish, with old metamorphic, extrusive volcanic and sedimentary rock – hence my comment about it being a northern extension of the “foothills.”. From Wordnik.com. [A Second Look at USHCN Classification « Climate Audit] Reference
The Dry, Partly Wooded Mountains ecoregion is largely underlain by sedimentary and extrusive rocks; granitics are less common than in other parts of the Idaho Batholith (16). From Wordnik.com. [Ecoregions of Idaho (EPA)] Reference
Studies of fluid and melt inclusions from intrusive and extrusive igneous rocks yield ample evidence that many magmas are vapor saturated as deep as the mid crust (10-15 km) and that. From Wordnik.com. [Jacob B. Lowenstern] Reference
Pumice is a type of extrusive volcanic rock, produced when lava with a very high content of water and gases (together these are called volatiles) is extruded (or thrown out of) a volcano. From Wordnik.com. [Pumice] Reference
France and of America the President is of an extrusive kind. From Wordnik.com. [Yet Again] Reference
Hawaiian lava flow (lava is the extrusive equivalent of magma). From Wordnik.com. [Earth & Sky Podcast] Reference
The extrusive eruption continues, and thanks to a reader, I read an abstract of a December. From Wordnik.com. [Fresh Bilge] Reference
Deposits formed at shallow depths are related to extrusive rocks and to intrusives near the surface. From Wordnik.com. [The Economic Aspect of Geology] Reference
Andesite is a common fine-grained extrusive igneous rock that forms from lavas erupted by volcanoes located along continental margins. From Wordnik.com. [Featured Articles - Encyclopedia of Earth] Reference
Some of these plumes melt through the Earth's solid lithosphere and can produce intrusive igneous features and extrusive igneous features on the surface. From Wordnik.com. [Featured Articles - Encyclopedia of Earth] Reference
A. extrusive B. intrusive C. foliated D. non-foliated Correct Answer: D DOK: 1 3. 2A Using the diagram, which describes the composition of the Earth's interior?. From Wordnik.com. [Recently Uploaded Slideshows] Reference
Intrusive igneous rocks such as diorite, gabbro and granite solidify below the Earth's surface while extrusive igneous rocks such as basalt, obsidian and pumice solidify on or above the surface. From Wordnik.com. [The Brussels Journal - The Voice of Conservatism in Europe] Reference
These deposits are closely associated in place and age with igneous rocks, either intrusive or extrusive, and are usually considered to have come from approximately the same source; and yet they afford distinct evidence of having been deposited after the adjacent igneous rocks were completely crystallized and fractured. From Wordnik.com. [The Economic Aspect of Geology] Reference
In general, ores of this class are more abundant about intrusive igneous rocks, that is about igneous rocks which have stopped and cooled before reaching the surface, -- than in association with extrusive igneous rocks which have poured over the surface as lava flows -- but the latter are by no means insignificant, including as they do such deposits as the Lake. From Wordnik.com. [The Economic Aspect of Geology] Reference
Current revision as of 12: 31, 24 January 2010 extrusive rock) or pushed up near the surface and cools beneath it (intrusive rock). From Wordnik.com. [Conservapedia - Recent changes [en]] Reference
Basalt is a hard, black extrusive igneous rock. From Wordnik.com. [Yahoo! Answers: Latest Questions] Reference
All this experience was valuable, but it was not the languages -- save in so far indeed as it was the English, which we hadn't in advance so much aimed at, yet which more or less, and very interestingly, came; it at any rate perhaps broke our fall a little that French, of a sort, continued to be with us in the remarkably erect person of Mademoiselle Cusin, the Swiss governess who had accompanied us from Geneva, whose quite sharply extrusive but on the whole exhilarating presence I associate with this winter, and who led in that longish procession of more or less similar domesticated presences which was to keep the torch, that is the accent, among us, fairly alight. From Wordnik.com. [A Small Boy and Others] Reference
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