Encyclopedia > Sill

Article Content

Sill

In geology, a sill is a tabular mass of igneous rock that has been intruded laterally between layers of sedimentary rock, beds of volcanic lava or ejectmenta[?], or even along the direction of the foliation[?] in metamorphic rock. The term "sill" is synonymous with "intrusive sheet."

In architecture, the sill is the bottom edge of a window.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Dynabee

... when the axis starts "rolling" inside the groove. (Compare with graphic below.) Since this friction force is essential for the device's operation, the groove must not be ...