| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,732,160,944 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
extrusive |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.02 sec. |
extrusive [ɪkˈstruːsɪv] adj
1. tending to extrude 2. (Earth Sciences / Geological Science) (of igneous rocks) formed from magma issuing from volcanoes or cracks in the earth's crust; volcanic Compare intrusive [2] ThesaurusLegend: Synonyms Related Words Antonyms How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
4 million cubic km (Coffin and Eldholm, 2001) for combined extrusive (6 million cubic km) and intrusive components (Courtillot and Renne, 2003). But studies of ophiolites suggested that the structure of the crust was more complex: The basalts in the upper, extrusive layer had different compositions and magnetic properties than the underlying layer of so-called sheeted dikes (relicts of the channels used by lavas to get to the surface). He was engaged by the company to examine volcanic extrusive and intrusive rocks and their contact relationships with one another, and to give his opinion as to whether they were pre- or post-mineral in age and whether they were part of a caldera sequence. |
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|