igneous rock

Home > ... > Earth and the Environment > Geology and Oceanography > Geology and Oceanography > ...

igneous rock

The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

igneous rock see rock .

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-X-igneousr" title="Facts and information about igneous rock">igneous rock</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"igneous rock." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 27 Nov. 2009 <http://www.encyclopedia.com>.

"igneous rock." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 27, 2009). http://www.encyclopedia.com/doc/1E1-X-igneousr.html

"igneous rock." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 27, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-igneousr.html

Learn more about citation styles

igneous rock

World Encyclopedia | 2005 | © World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

igneous rock One of three major classes of rock produced by the cooling and solidifying of molten magma. All igneous rocks are crystalline and most resist erosion. Extrusive, or volcanic, igneous rocks, such as basalt, form by the rapid cooling of molten material at the surface. Intrusive, or hyperbyssal, rocks, such as dolerite, form in sills or dykes at intermediate depth. Plutonic rocks, such as granite, form in batholiths at greater depth. The major chemical constituent is silica. Acid rocks contain high amounts of quartz, feldspar or mica, and are light coloured. Basic rocks are darker and contain 45–55% silica, including minerals such as hornblende. See also metamorphic rock; sedimentary rock
Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O142-igneousrock" title="Facts and information about igneous rock">igneous rock</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"igneous rock." World Encyclopedia. 2005. Encyclopedia.com. 27 Nov. 2009 <http://www.encyclopedia.com>.

"igneous rock." World Encyclopedia. 2005. Encyclopedia.com. (November 27, 2009). http://www.encyclopedia.com/doc/1O142-igneousrock.html

"igneous rock." World Encyclopedia. 2005. Retrieved November 27, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-igneousrock.html

Learn more about citation styles

igneous

A Dictionary of Earth Sciences | 1999 | | © A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

igneous Applied to one of the three main groups of rock types (igneous, metamorphic, and sedimentary), to describe those rocks that have crystallized from a magma.
Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O13-igneous" title="Facts and information about igneous rock">igneous rock</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

AILSA ALLABY and MICHAEL ALLABY. "igneous." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 Nov. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "igneous." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (November 27, 2009). http://www.encyclopedia.com/doc/1O13-igneous.html

AILSA ALLABY and MICHAEL ALLABY. "igneous." A Dictionary of Earth Sciences. 1999. Retrieved November 27, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-igneous.html

Learn more about citation styles

Related research questions

Free newspaper and magazine articles

Free Article Igneous rock associations 4. Oceanic island volcanism I mineralogy and petrology.(Series)
Magazine article from: Geoscience Canada; 3/1/2005
Free Article Igneous rock associations in Canada 3. Large Igneous Provinces (LIPs) in Canada and adjacent regions: 3 Ga to Present.(Series)
Magazine article from: Geoscience Canada; 9/1/2004
Free Article Igneous rock associations 10. Komatiites.(Series)(Report)
Magazine article from: Geoscience Canada; 3/1/2008

Facts and information from other sites

Related topics

  Edit this list

Related articles from newspapers, magazines, and more

Paleogene-Early Miocene Igneous Rocks and Geodynamics of the Alpine-Carpathian-Pannonian-Dinaric Region: an Integrated Approach
Magazine article from: Geolines; 1/1/2006; ; 700+ words ; ...geodynamic link between Paleogene-Early Miocene igneous rocks of the Mid-Hungarian zone and those of the...summary suggests that the Paleogene-Early Miocene igneous suite in all studied igneous provinces of the Alps, Carpathians, Pannonian...
The igneous rocks of Greece: the anatomy of an orogen.(Book Review)
Magazine article from: Atlantic Geology; 7/1/2004; ; 700+ words ; The igneous rocks of Greece: The anatomy...significance of each group of rocks is presented in detail...emphasis on the igneous rocks in the region, this is...is a template for using igneous petrology to dissect "the...
The properties of various igneous rocks for [gamma]-ray shielding.
Magazine article from: Construction and Building Materials; 12/1/2007; ; 700+ words ; ...calculated for four different igneous rocks which are widely...mechanical properties of rocks has also been investigated...decreased. Keywords: Rock; Igneous; [gamma]-ray shielding...construction. Since igneous rocks are widely used as building...
Igneous rocks: A classification and glossary of terms
Magazine article from: Mining Engineering; 8/1/2002; ; 376 words ; ...and terminology associated with igneous rocks. This work was carried out under...the 1989 edition. It shows how igneous rocks can be distinguished in the...charnockites. This updated glossary of igneous terms now includes 1,637 entries...
Can Ternary Feldspars be Used to Constrain the Metamorphic Conditions of High-Grade Meta-Igneous Rocks? Evidence from Orthopyroxene Gneisses, Bohemian Massif
Magazine article from: Geolines; 1/1/2005; ; 490 words ; ...feldspars in high-grade meta-igneous rocks, and the recognition of the thermometric...temperature crystallisation of the igneous protolith. After exsolution, the...Some of the high-grade meta-igneous rocks from the Moldanubian of the...
Geological implications from geochemical and isotopic studies of upper Cretaceous and lower Tertiary igneous rocks around the northern Rockall Trough
Magazine article from: Journal of the Geological Society; 5/1/1997; ; 700+ words ; ...acidic and intermediate rocks are also present. Intrusive and fragmentary rock types have been proved but...isotopic analyses undertaken on igneous rocks recovered from offshore...to those derived from the igneous rocks of Skye (Dickin 1981...
U-Pb dating of Mesozoic igneous rocks from Hong Kong
Magazine article from: Journal of the Geological Society; 11/1/1997; ; 700+ words ; ...Mesozoic plutonic and volcanic rocks of Hong Kong. These have revealed...the Territory. Among these rocks, discordant U Pb data projected...results of recent Rb Sr whole-rock age dating of the granitoid rocks and have considerably improved...components, either as primary igneous or detrital ...
Igneous rock associations 4. Oceanic island volcanism I mineralogy and petrology.(Series)
Magazine article from: Geoscience Canada; 3/1/2005; ; 700+ words ; ...differentiation. Magmas assimilate wall rocks in these chambers. Timescales...chambers. INTRODUCTION Most igneous activity in the ocean basins...represent <1% of all igneous rocks on Earth and ~2% of...placed on them for understanding igneous processes and the evolution...
Igneous rock associations in Canada 3. Large Igneous Provinces (LIPs) in Canada and adjacent regions: 3 Ga to Present.(Series)
Magazine article from: Geoscience Canada; 9/1/2004; ; 700+ words ; ...ridge or by subduction are termed Large Igneous Provinces (LIPs), and consist of continental...and seamount chains. Associated felsic rocks may also be present. LIPs of Mesozoic...problemes geologiques. INTRODUCTION Large Igneous Provinces (LIPs) represent voluminous...
Petrology, geochronology, and tectonic implications of c. 500 Ma metamorphic and igneous rocks along the northern margin of the Central Asian Orogen (Olkhon terrane, Lake Baikal, Siberia)
Magazine article from: Journal of the Geological Society; 1/1/2008; ; 700+ words ; ...from island arc mafic volcanic rocks and back-arc basin sediments...preserved in metamorphic and igneous complexes within the craton...of high-grade metamorphic rocks (up to granulite facies...interpreted as early Precambrian rocks of the Siberian craton margin...
Click to see an enlarged picture
igneous rock. (Image by Stan Zurek, GFDL)

For students and teachers!

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Popular on Newser:

Web Goes Wild for Risqué Bride

(11/26/2009 5:08:01 PM)
Hot Rumor: Tiger's Cheating

(11/26/2009 3:05:00 AM)
NYC Man Jumps to His Death—In Front of Kids

(11/26/2009 2:33:01 PM)
Shaq Foots Bill for Shaniya's Funeral

(11/26/2009 4:20:01 PM)
Gabby Katie Ruins New Moon for Fans

(11/26/2009 7:30:00 PM)