Pinewood Springs â Newsletter April, 2014. Water District As many of you know, the flood severely damaged the home located by the Bridge on Kiowa. The floodwaters also completely destroyed the homeownerâs water tap and water line.
Sill (geology) In geology, a sill is a flat sheet-like intrusion. As molten magma, it pushed between older layers of rock. The older rock may be sedimentary rock, beds of volcanic lava or tuff, or metamorphic rock. The sill does not cut across preexisting rocks, unlike dykes.
Illustration showing the difference between a dike and a sill. In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or even along the direction of foliation in metamorphic rock. The term sill is synonymous with concordant intrusive sheet.