In geology, a tabular igneous intrusion emplaced parallel to the bedding of the enclosing rock.
Although they may have inclined orientations, nearly horizontal sills are most common. Sills may range from a few inches to hundreds of feet thick and up to hundreds of miles long. They include rock compositions of all types.
This is the complete article, containing 53 words
(approx. 1 page at 300 words per page).
View More Summaries on Sill (geology)
