In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly...

underground to form intrusions, such as batholiths, dikes, sills, laccoliths, and volcanic necks. Intrusion is one of the two ways igneous rock can form. The...

formation of domes, the foremost of which are refolding, diapirism, igneous intrusion, and post-impact uplift. Structural domes can be formed by horizontal...

The Bushveld Igneous Complex (BIC) is the largest layered igneous intrusion within the Earth's crust. It has been tilted and eroded forming the outcrops...

type of intrusion. Laccolith mountains have since been identified in many other parts of the world. A laccolith is a type of igneous intrusion, formed...

LOPOLITH…, SILL OR DIKE? – INTRUSIONS (2)". Volcano Hotspot. Retrieved 18 December 2018. Khoso, Sultan Ahmed. "Intrusive Igneous Rock Structures" (PDF)....

Igneous rock (igneous from Latin igneus 'fiery'), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic...

geological dome, 40 kilometres (25 mi) in diameter caused by a subsurface igneous intrusion deforming the overlying sedimentary rock layers, causing the rock...

by differential compaction or due to the effects of a high-level igneous intrusion e.g. above a laccolith. The fold hinge is the line joining points...

crosscutting intrusions. In geology, when an igneous intrusion cuts across a formation of sedimentary rock, it can be determined that the igneous intrusion is younger...

metamorphism is caused when a body of rock comes into contact with an igneous intrusion that heats up this surrounding country rock. This contact metamorphism...

up intrusion in Wiktionary, the free dictionary. An igneous intrusion is a form of geologic feature. Intrusion may also refer to: Saltwater intrusion, the...

A lopolith is a large igneous intrusion which is lenticular in shape with a depressed central region. Lopoliths are generally concordant with the intruded...

exposures of a much larger alkaline igneous intrusion that underlies the area of Beemerville, New Jersey. This igneous intrusion is part of the larger Cortlandt-Beemerville...

is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths...

subsurface of the affected area, usually caused by the presence of an igneous intrusion underground. Geothermal activity can manifest itself in a variety...

crosscutting intrusions. In geology, when an igneous intrusion cuts across a formation of sedimentary rock, it can be determined that the igneous intrusion is younger...

The Tooth of Time is an igneous intrusion of dacite porphyry formed in the tertiary period some 22 to 40 million years ago. It is a geological feature...

isostasy, which is related to the crustal thinning. A 1000 km-large igneous intrusion located below the South China Craton was exhumated. The mantle plume...

is any dark-colored, fine-grained, non-granitic intrusive or extrusive igneous rock. Types of trap rock include basalt, peridotite, diabase, and gabbro...

The Kondyor Massif (Russian: горы Кондёр) or Konder is a circular intrusion of igneous rock, about 8 kilometres (5 mi) in diameter. It is located in Khabarovsk...

between layers in a layered rock mass, it is called a sill. An igneous sheet intrusion is formed where a mass of molten magma takes advantage of a pre-existing...

layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture. These intrusions can...

cuts across the existing bedding: as in one of the main types of igneous intrusion, or as in the sedimentary clastic dikes Discordant strata, rock layers...

iron-chromium alloy. Chromite grains are commonly found in large mafic igneous intrusions such as the Bushveld in South Africa and India. Chromite is iron-black...

68.1683°N 31.7169°W / 68.1683; -31.7169 The Skaergaard intrusion is a layered igneous intrusion in the Kangerlussuaq area of East Greenland and is composed...

large-scale inclusion of foreign rock strata at the margins of an igneous intrusion is called a roof pendant. Xenoliths in granodiorite of the Alta Stock...

Matachewan dike swarm. Included in the Mackenzie Large Igneous Province are the large Muskox layered intrusion, the Coppermine River flood basalt sequence and...

Yosemite Valley. A separate intrusion of igneous rock, the Taft Granite, forms the uppermost portions of the cliff face. A third igneous rock, diorite, is present...

Zuma Rock is a large natural monolith, or inselberg, an igneous intrusion composed of gabbro and granodiorite, located in Madalla, a town in Niger State...