Reading: Dikes and Sills | Geology - Lumen Learning
WEBIn 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.
Difference Between Dyke and Sill
WEBJul 28, 2017 · 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. Dykes and sills are often associated with volcanoes, though they are not exclusive to that particular landform.
9.13: Reading- Dikes and Sills - Geosciences LibreTexts
WEBJun 10, 2024 · 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) - Wikipedia
WEBIn 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.
Dike (geology) - Wikipedia
WEBIn geology, a dike or dyke is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock.
Geology Fundamentals – Veins, Dikes and Sills
WEBMay 20, 2013 · Both dikes and sills are forms of magmatic intrusion: Dikes will crosscut existing strata while sills are concordant with existing strata. An easy heuristic is that sills are like window sills, flat lying, while dikes are not.
Dikes and Sills – Geology 101 for Lehman College (CUNY)
WEBIn 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.
Geological Society - Igneous Intrusions
WEBThree 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.
Dykes and Sills - Geology North
WEBThere are four distinct sets of dykes and sills in Northumberland. These are: the lamprophyre dykes of Early Devonian times, the Devonian Cheviot dyke swarm, the Permian Whin Sill and its associated dyke swarm, …
Dike | Volcanic, Intrusive & Magma | Britannica
WEBdike, in geology, tabular or sheetlike igneous body that is often oriented vertically or steeply inclined to the bedding of preexisting intruded rocks; similar bodies oriented parallel to the bedding of the enclosing rocks are called sills.