Magma

the USGS, a volcano erupts when deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Because it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually some of the magma pushes through vents and fissures in the Earth 's surface. A volcanic eruption occurs. Magma that has erupted is called…

the majority of the park’s features like geysers and hot springs are thanks to the volcanic activity. The timeline for the volcano being active again is up for debate, but a study of Yellowstone Caldera in 2013 calmed some fears when it found the magma chamber under the park was about two and a half times larger…

beneath us all the time. The tectonic plates are moving incredibly slowly, at a rate of about 5-10 centimetres every year. Continental drift occurs because hot liquid magma is rolling around underneath the surface of the earth with a convection current. The current of the flowing magma moves plates that are resting atop it. The magma pulls the tectonic plates around and away from each other and sometimes back into each other. When the supercontinent Gondwana broke up, each piece went in a…

Yosemite National Park was first protected in 1864 and has since been a fascinating landscape that can be observed by people from all over (NPS). The formation of Yosemite Valley has been a natural phenomena for millions of years, formed by some of Earth’s most compelling geological sources. Yosemite has many beautiful granite formations and glacier-carved landscapes that attract everyone from artists to geologists (Huber, 1987). Yosemite Valley was formed by a series of different forces…

destroyed and with a population of about 14,500 people. The Volcanologists goal was not to underestimate or overestimate the possibility of an eruptions but to accurately predict the volcanoes. They flew over the Mt Pinatubo to check out the visible magma and dust. The volcanic activity was very frequently increasing at massive rates then subsiding. 120,000 people, 12 miles from the mountain is evacuated and a level 4 is alerted. The Clark military based was postponing the evacuation for a…

The thought of standing directly above thousands of kilometers of rock and magma in motion is quite unsettling. But, the anxiety quickly fades because we realize there is nothing to fear in Iowa when it comes to volcanos. 1630 B.C. Santorini, Greece, however, is a completely different story. Not only was the Santorini eruption one of the biggest in Earth’s history, but it quite literally changed the face of the earth and created the infamous myth of Atlantis. Santorini is volcanic small island…

dormant. It’s magma is high in silica, so Mount St. Helens eruptions are destructive, dangerous, and violent. Mount St. Helens is 1,000 years old. Scientist…

continents do. Each plate also has various landforms, mountains, valleys, and things like that. The plates move due to the various currents of the earth’s mantle. This is called convection currents which is the constant circling of the earth’s magma. This causes three types…

NOVA documentary, the caldera is large enough to hold the city of LA and the magma chamber encompasses half of the park above it and extends almost 5 miles deep (Adah, 2016). This makes Yellowstone’s magma chamber the largest known on Earth. Since Yellowstone is a supervalcano, an eruption would have a magnitude of 8 on the Volcano Explosively Index. At this magnitude, Yellowstone would release over 250 cubic miles of magma (Yellowstone Park, n.d.-h). Scientists discovered that Yellowstone has…

“Even without new magma entering the system, the old magma continues to heat the ground above. This leads to carbon dioxide release and ground deformation”(1). This concludes that although a volcano that has no previous evidence of eruption, it still obtains potential to alter the Earth’s surface. Shannon Hall continues by saying, “New satellite information and other evidence reveals that the hills have swelled by 50 meters over the last 200,000 years, which is likely caused by magma slowly…