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.
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.
What Are Dikes and How Do They Form? - ThoughtCo
WEBJan 17, 2020 · A dike (spelled dyke in British English) is a body of rock, either sedimentary or igneous, that cuts across the layers of its surroundings. They form in pre-existing fractures, meaning that dikes are always younger than the …
Dike - Geology is the Way
WEBA dike (also spelled dyke) is a sheet tabular intrusion that crosscuts preexisting country rocks. In the vast majority of cases, a dike consists of igneous rocks. However, sedimentary processes may also produce sediment-filled cracks called clastic or sedimentary dikes.
Dike: What are Dikes, Types Of Dikes – Geology In
WEBA dike is an intrusion into an opening cross-cutting fissure, shouldering aside other pre-existing layers or bodies of rock; this implies that a dike is always younger than the rocks that contain it.
Reading: Dikes and Sills | Geology - Lumen Learning
WEBDikes. Figure 1. A magmatic dike cross-cutting horizontal layers of sedimentary rock, in Makhtesh Ramon, Israel. A dike is a sheet of rock that formed in a fracture in a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin.
Dike - Education | National Geographic Society
WEBApr 29, 2024 · A dike is a barrier used to regulate or hold back water from a river, lake, or even the ocean. In geology, a dike is a large slab of rock that cuts through another type of rock.
9.13: Reading- Dikes and Sills - Geosciences LibreTexts
WEBJun 10, 2024 · Dikes. A dike is a sheet of rock that formed in a fracture in a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma intrudes into a crack then crystallizes as a sheet intrusion, either cutting across layers of rock or through an unlayered mass of rock.
what is a dike and how do they form ? - geology explained
WEBJul 28, 2021 · dikes are typical signs of ancient volcanic activity. here's how they are formed. feel free to ask questions in the comments section ! 0:00 - how are dikes formed 0:37 - what does a dike look...
Dyke (dike) - SpringerLink
WEBA dyke (also spelled dike) is a tabular body usually of igneous rock discordant to, and intrusive into, the bedding, schistosity, or other primary structure of its host rock (Fig. 1). Depending on the attitude of the host rocks, the dyke may be vertical, horizontal, or inclined, but most are vertical or steeply inclined, and were so intruded.