A flood basalt (or plateau basalt ) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot reaching the surface of the earth via a mantle plume. Flood basalt provinces such as the … See more Flood basalts are the most voluminous of all extrusive igneous rocks, forming enormous deposits of basaltic rock found throughout the geologic record. They are a highly distinctive form of intraplate volcanism, … See more Theories of the formation of flood basalts must explain how such vast amounts of magma could be generated and erupted as lava in such … See more Flood basalts contribute significantly to the growth of continental crust. They are also catastrophic events, which likely contributed to many See more The interlocking crystals of flood basalts, which are oriented at random, make trap rock the most durable construction aggregate of all rock types. See more Large Igneous Provinces (LIPs) were originally defined as voluminous outpourings, predominantly of basalt, over geologically very … See more Representative continental flood basalts and oceanic plateaus, arranged by chronological order, together forming a listing of large igneous provinces: Elsewhere in the … See more • Geology portal • Supervolcano – Volcano that has erupted 1000 cubic km of lava in a single eruption • Volcanic plateau – … See more WebFlood basalt episodes have been attributed to mantle plume activity, and thus may represent one facet of a host of related global geological factors (eg, changes in sea-floor spreading rates, rifting events, increased …
Basalt: Igneous Rock - Pictures, Definition, Uses
WebFeb 15, 2012 · A flood basalt is the product of a volcanic eruption that covers large areas with basalt lava. The origin of the Steens–Columbia River flood basalts, thought to be … imitation crab meat kosher
Flood Basalts Volcano World Oregon State University
WebFlood basalts were Earth's largest volcanic episodes that, along with related intrusions, were often emplaced rapidly and coincided with environmental disruption: oceanic anoxic … WebThe basalts spread huge areas of relatively low slope and build up plateaus. The only historic example occurred in Iceland in 1783, where the Laki basalt erupted from a 32 km long fissure and covered an area of 588 km 2 with 12 km 3 of lava. WebSep 19, 2024 · Oceanic plateau basalt (oceanic flood basalts, OFB) is an intra-plate basalt, presumably derived from huge mantle plumes (super-plumes). However, in their … list of renewable energy companies uk