Sill (geology) - Wikipedia
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 along the direction of foliation in metamorphic rock. A sill is a concordant intrusive sheet, meaning that it does not cut across preexisting rock beds.
Sill Definition & Meaning - Merriam-Webster
The meaning of SILL is a horizontal piece (such as a timber) that forms the lowest member or one of the lowest members of a framework or supporting structure.
Sill | Igneous Rock, Intrusive Layer & Magma Chamber | Britannica
Sill, flat intrusion of igneous rock that forms between preexisting layers of rock. Sills occur in parallel to the bedding of the other rocks that enclose them, and, though they may have vertical to horizontal orientations, nearly horizontal sills are the most common. Sills may measure a fraction.
Reading: Dikes and Sills | Geology - Lumen Learning
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.
9.13: Reading- Dikes and Sills - Geosciences LibreTexts
2024年6月10日 · Sills. 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.
Sill - Geology is the Way
A sill is a sheet intrusion emplaced parallel to the structures present within its host rocks. Its primary feature is to be concordant and never crosscut, indeed, the foliation or bedding planes in the host, which magma exploits as planes of weakness to move underground.
SILL | English meaning - Cambridge Dictionary
a flat, horizontal piece, usually of wood, forming the base of the frame of a window: She leaned on the sill and looked out through the open window. sill noun (ROCK LAYER)
SILL | definition in the Cambridge English Dictionary
SILL meaning: 1. a flat piece of wood, stone, etc. that forms the base of a window or door 2. a flat piece of…. Learn more.
Geological Society - Igneous Intrusions
Three common types of intrusion are sills, dykes, and batholiths (see image below). Sills: form when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock.
Difference Between Dyke and Sill
2017年7月28日 · Dyke vs. Sill. “Dyke” and “sill” are geological terms used to describe an intrusion, usually a mass of igneous or volcanic rocks that have forcibly entered, penetrated, and embedded into layers of another rock or landform.