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The Iceland plume is a postulated upwelling of anomalously hot rock in the Earth's mantle beneath Iceland.Its origin is thought to lie deep in the mantle, perhaps at the boundary between the core and the mantle at about 2,880 km (1,790 mi) depth.
This implies that the Iceland hotspot may be much older than the earliest rifting of what is now the northernmost Northeast Atlantic. If this is true, then much of the rifting in the North Atlantic was likely caused by thinning and bulging of the crust as opposed to the more direct influence of the mantle plume which sustains the Iceland ...
A mantle plume is a proposed mechanism of convection within the Earth's mantle, hypothesized to explain anomalous volcanism. [2] Because the plume head partially melts on reaching shallow depths, a plume is often invoked as the cause of volcanic hotspots, such as Hawaii or Iceland, and large igneous provinces such as the Deccan and Siberian Traps.
The Iceland plume is a mantle plume under Iceland that carries hot material from the deep within Earth's mantle upwards to the crust. The rising hot material weakens the lithosphere, making the separation of plates easier. [6] The flow of hot plume material creates volcanism under the continental lithosphere. Iceland extends across the Mid ...
That mantle plumes are much more complex than originally hypothesised and move independently of each other and plates is now used to explain such observations. [ 8 ] In 2020, Wei et al. used seismic tomography to detect the oceanic plateau, formed about 100 million years ago by the hypothesized mantle plume head of the Hawaii-Emperor seamount ...
A volcano in southwestern Iceland has erupted for the sixth time since December, spewing bright orange lava plumes high into the air.. The eruption began at 9.26pm local time on the Reykjanes ...
The 2010 eruptions of Eyjafjallajökull in Iceland caused about 20 countries to shut down air traffic for a week, affecting more than 10 million travelers and costing the industry billions of dollars.
Hot mantle materials rising up in a plume can spread out radially beneath the tectonic plate causing regions of uplift. [13] These ascending plumes play an important role in LIP formation. When created, LIPs often have an areal extent of a few million square kilometers and volumes on the order of 1 million cubic kilometers.