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 - 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.
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.
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.
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.
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 …
Dikes and Sills – Geology 101 for Lehman College (CUNY)
WEBA dike is a sheet of rock that formed in a fracture in a pre-existing rock body 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.
Reading: Dikes and Sills | Geology - Lumen Learning
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.
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 (Igneous) - SpringerLink
WEBNov 20, 2015 · A solidified near-vertical subsurface magma body that penetrates through one or more layers of preexisting rock bodies or layers (regardless of rock type). The thickness of a dike is much smaller (cm to meters) than the other dimensions (kilometers), forming a sheet-like structure.