sill - Hutchinson encyclopedia article about sill Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,760,609,536 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

sill

   Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia 0.03 sec.

sill

Enlarge picture
Igneous intrusions can be a variety of shapes and sizes. Laccoliths are domed circular shapes, and can be many miles across. Sills are intrusions that flow between rock layers. Pipes or necks connect the underlying magma chamber to surface volcanoes.

Sheet of igneous rock created by the intrusion of magma (molten rock) between layers of pre-existing rock. (A dyke, by contrast, is formed when magma cuts across layers of rock.) An example of a sill in the UK is the Great Whin Sill, which forms the ridge along which Hadrian's Wall was built.

A sill is usually formed of dolerite, a rock that is extremely resistant to erosion and weathering, and often forms ridges in the landscape or cuts across rivers to create waterfalls.



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.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
?Sign in SSL protected
Email:
Password:
Register

? Mentioned in ? References in classic literature
 
The window frame which prevented anyone from sitting on the outer sill was being forced out by two footmen, who were evidently flurried and intimidated by the directions and shouts of the gentlemen around.
War and Peace by Tolstoy, Leo View in context
Grasping the sill I pulled myself up to a sitting posture without looking into the building, and gazed down at the baffled animal beneath me.
A Princess of Mars by Burroughs, Edgar Rice View in context
The students stood up on their stools and craned their heads forward to get a better view of me, and two little girls jumped upon the sill of an open window where they could see more plainly.
The Marvelous Land of Oz by Baum, L. Frank View in context
More results
 
Hutchinson browser? ? Full browser
 
 
Hutchinson Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.