A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying apart the host rock strata. The pressure of the magma is high enough that the … See more A laccolith is a type of igneous intrusion, formed when magma forces its way upwards through the Earth's crust but cools and solidifies before reaching the surface. Laccoliths are distinguished from other igneous intrusions … See more The term was first applied as laccolite by Gilbert after his study of intrusions of diorite in the Henry Mountains of Utah in about 1875. The word laccolith derived in 1875—1880, from Greek, lákko(s), meaning "pond", plus -lith, meaning "stone". See more The original shape of intrusions can be difficult to reconstruct. For instance, Devils Tower in Wyoming and Needle Rock in Colorado were both thought to be volcanic necks, but further study has suggested they are eroded laccoliths. At Devils Tower, intrusion would … See more • Batholith – Large igneous rock intrusion • Lopolith – Lenticular igneous intrusion with a depressed central region • Stock – Smaller igneous intrusion See more Laccoliths tend to form at relatively shallow depths and in some cases are formed by relatively viscous magmas, such as those that … See more In addition to the Henry Mountains, laccolith mountains are found on the Colorado Plateau in the La Sal Mountains and See more There are many examples of possible laccoliths on the surface of the Moon. Some are centered in impact craters and may form as part of the post-impact evolution of the … See more WebSep 1, 2024 · A laccolith also is concordant with country rock, but it is distinguished from a sill by having a flat floor with a domed (mushroom-shaped) roof (see Figure 6). Laccoliths …
Geological Formations: A Comprehensive List, With Photos - Ranker
WebSep 3, 2024 · A lopolith refers to a mushroom-shaped pluton, a bysmalith is a cylindrical pluton, and finally, a laccolith is a blister-shaped pluton that raised the rocks into a dome shape. Origin of "Pluton" Plutonic rocks are … WebThe rounded roof formed when the molten rock pushed the overlying sediments into the shape of a dome. The bottom of the laccolith is presumed to be flat. Molten rock flowed between the rock layers as the … darren lindsay project renewal
Igneous intrusion - Wikipedia
WebAug 12, 2024 · Laccolith noun (geology) A mass of igneous or volcanic rock found within strata which forces the overlaying strata upwards and forms domes. Phacolith A … WebDefine laccolith. laccolith synonyms, laccolith pronunciation, laccolith translation, English dictionary definition of laccolith. n. A mass of igneous rock intruded between layers of sedimentary rock, resulting in uplift. ... forcing the overlying strata into the shape of a dome. See lopolith [C19: from Greek lakkos cistern + -lith ... WebThe meaning of LACCOLITH is a mass of igneous rock that is intruded between sedimentary beds and produces a domical bulging of the overlying strata. bison transport hr