An eruption at Yellowstone Caldera would result in air traffic being shut down, and communication would be affected as well. Die hierbei entstandenen Ignimbrite mit einem Volumen von rund 1000 km³ werden Lava Creek Tuff genannt und sind in den Klippen des Madison Canyon zu sehen.[11]. Der Mantel Plume des Hot-Spots reicht nach jüngeren Daten aus dem Jahr 2015 bis an die oberste Mantelschicht in einer Tiefe von etwa 63 km. The volcanic eruptions, as well as the continuing geothermal activity, are a result of a great cove of magma located below the caldera's surface. Yellowstone National Park is situated over a supervolcano that is capable of an eruption of magnitude 8. Here are 17 Fun Facts About Yellowstone National Park: Yellowstone was established on March 1, 1872. Nevertheless, according to Brian Wilson of the Jet Propulsion Laboratory, a completed project might trigger, instead of prevent, an eruption.[43][44]. [5], Volcanism at Yellowstone is relatively recent, with calderas that were created during large eruptions that took place 2.1 million, 1.3 million, and 630,000 years ago. [20] Part of the controversy is the relatively sudden appearance of the hotspot in the geologic record. The next biggest supereruption formed the Yellowstone Caldera (~630,000 years ago) and produced the Lava Creek Tuff. Neben enormen Aschenmengen, deren Spuren bis nach Kalifornien reichen, produzierte er unter anderem zahlreiche pyroklastische Ströme. The magma in this cove contains gases that are kept dissolved by the immense pressure under which the magma is contained. [26][27] Another swarm started in January 2010, after the Haiti earthquake and before the Chile earthquake. Man rechnet eher mit weiterem Wirken der Hochtemperaturgebiete, phreatischen Explosionen und mittlerer bis starker Erdbebentätigkeit.[11]. Yellowstone calderaThe caldera at Yellowstone Park is the site of at least 3 great supervolcano eruptions in the past. John has been guiding in Yellowstone for over a decade. Dabei handelte es sich ausschließlich um lokale Dampfexplosionen. Yellowstone's "supervolcano" status. The calderas lie over the Yellowstone hotspot under the Yellowstone Plateau where light and hot magma (molten rock) from the mantle rises toward the surface. The oldest identified caldera remnant straddles the border near McDermitt, Nevada–Oregon, although there are volcaniclastic piles and arcuate faults that define caldera complexes more than 60 km (37 mi) in diameter in the Carmacks Group of southwest-central Yukon, Canada, which are interpreted to have been formed 70 million years ago by the Yellowstone hotspot. Durch die sich über den Hot Spot schiebende Kontinentalplatte ergeben sich über die Jahrmillionen erkennbare Spuren der vulkanischen Tätigkeit, in diesem Fall eine Kette von Calderen auf dem nordamerikanischen Kontinent. 2005 ließ die BBC unter dem Titel Supervolcano (dt. I read that scientists couldn't find the Yellowstone caldera until they looked at a photo of Yellowstone from space. It is also referred to as the Yellowstone Supervolcano, which refers to its capability of producing an extremely violent volcanic eruption. Some geoscientists hypothesize that the Yellowstone hotspot is the effect of an interaction between local conditions in the lithosphere and upper mantle convection.
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