Indonesi Indo-Australian Plate Subduction Zones
Indonesia is located on a subduction zone, which the Indo-Australian plate subducts under the Eurasian plate. At subduction zones, water that flowed in the hot mantle cause the mantle to partially melt. Eventually, the magma cooled on the surface and created a volcano. Since the volcano spewed out pyroclastic flow, this indicates that the magma was high in silica and therefore high in viscosity. Explosive volcanoes typically occur at subduction zones. At subduction zones, the magma doesn’t quickly reach the surface and because it sits under the continental crust and melts. This may have caused the magma to have a lot of silica. Another reason, why the magma might have had an excessive amount of silica is because the initial (basalt) magma slowed
Sequoi Kings Canyon National Park: Geology Analysis
1195 Words | 5 Pages(Harris, 2004) The downfaulting of Death Valley is correlated with the extension of the lithosphere in the Death Valley region, which plays a part to the uplifting associated with Sequoia – Kings Canyon National Park. The Batholiths of the Sierra Nevada mountain ranges are prominent in both parks, exposing “plumbing systems” in magma chambers that fed the volcanoes. “Magmatic differentiation” involves the crystallization of a magma with magma of a different chemical composition, creating more than one type of igneous rock, which can be seen in both Yosemite and Sequoia – Kings National Parks. (Harris, 2004, 748)
A Comparison Of Mauna Loa
391 Words | 2 PagesThe volcano I pick was Mt Mauna Loa. This volcano has erupted about 32 times for the eruption of 1984. Mauna Loa is about 600,000- 1 million years old and hasn’t erupted as much as Kilauea and when it erupts it produces huge rivers of lava and threatens towns nearby. Mauna Loa is the second tallest volcano in the world. The elevation is 13,679 feet high.
The Hawaiian Island Chain
889 Words | 4 PagesIn this stage, the type of lava changes and eruptions become more explosive. The new lava flows increase the slope and eruption rate gradually decrease over a period of 250,000 years. As the volcano becomes dormant, the erosional stage takes place. The mountain loses elevation and subsides into the oceanic crust. Erosion also causes deep valleys and coral reefs to form.
Undara Research Paper
575 Words | 3 PagesUndara Lava Tubes Introduction Considered some of the largest and longest lava tubes on the planet. The Undara lava tubes is located in Undara Volcanic National Park in North Queensland. There is some of the most amazing spectacular underground caves. The coordinates of this amazing natural environment is, latitude: -18.25 and longitude 144.75. Main Geological Features A unique feature in Undara is called the wall.
Hawaiian Island Plumes
971 Words | 4 PagesIt is said the Hawaiian hot spot appears to be deep and wide and it’s said that as wide as where it could feed three volcanoes at the same time. Robert and Barbara Decker wrote, “The Hawaiian hot spot, whether of deep or shallow origin, seems to be ide enough to feed three volcanoes at the same time.” But of course, this doesn’t end here, after Wilson’s theory, many scientist questioned
Compare And Contrast Yellowtone And Hawaii Essay
800 Words | 4 PagesSecond, Yellowstone doesn't have any volcanos above ground like Hawaii. The super volcano is under all the attractions. Yellowstone does get earthquakes frequently. When a earthquake hits that's high on Richter scale people fear that the super volcano could erupt, but the chances of it erupting are very low. To conclude, Yellowstone and Hawaii have geological activity, but you never know when a super volcano will
Hotspot Theory Essay
1487 Words | 6 PagesHotspots do not move, so lava keeps erupting in the same spot over and over again. However tectonic plates move on average a few centimeters a year. While that is not a lot over a few years, a centimeter a year
Pompeii Earthquake
670 Words | 3 PagesIt’s just a big mountain, silent and still, its gentle slopes covered with trees and grape vineyards. Except Mount Vesuvius is not just a mountain. It is a volcano. Vesuvius sits atop a crack in the earth’s crust— the hard, rocky layer that covers the surface of our planet like the shell of an egg. From miles below, molten rock called magma seeps up through this crack.
Case Study Of 2009 Samoan Tsunami
1109 Words | 5 PagesThe second earthquake was a 7.8 on the Richter magnitude scale and occurred on the Kermadec Tongan subduction zone. The Kermadec Tongan subduction zone is located near the top of New Zealand and heads north. It is one of the fastest subduction zones. It moves up to 24 cm a year. (4) the earthquakes hit around 6:48 am (local time) which meant that some residents were at home and may have been woken from their sleep with a huge surge of water.
How Does Plate Tectonics Affect The Earth
1026 Words | 5 PagesThroughout geologic history, tectonic plate boundaries have diverged, converged and transformed the Earth, causing the surface of the Earth to be in a constant state of change. Plate tectonics, at present, is observed only on the Earth and “refers to a particular mode of convection in a planetary mantle, which is made of silicate rocks” (Korenaga 2012, p. 87). The lithosphere of the Earth is divided into plates which move at different velocities over the mantle, with much of the Earth’s seismic and volcanic activity occurring when these different plates interact at plate boundaries. Volcanic activity, therefore, occurs at two types of plate boundaries: mid-ocean ridges and subduction zones. Plate tectonics also influence the evolution of the
Galapagos Islands Research Paper
239 Words | 1 PagesThis archipelago of active volcanic islands was formed when the Nazca plate moved over a geological “hot spot”.
Effects Of Mt Vesuvius
513 Words | 3 PagesBecause of this eruption, the magma chamber of Mount Vesuvius had collapsed which was the key thing to why the mountain had
The Plate Tectonic Theory
1101 Words | 5 PagesThe earth wasn’t always solid. Billions of years ago it was a blob of magma floating in space. Over time the surface cooled, but the centre remained molten rock. The pressure and heat broke the surface into plates that float on a sea of magma below. These plates are constantly moving, drifting apart creating divergence boundaries and crashing together creating convergence boundaries, colliding with the power to forge mountains, and splitting solid rock like it was paper.
Plate Tectonics Movement
341 Words | 2 PagesWhen the plate tectonics move, it causes pressure inside the earth that creates volcanoes. “The pressure inside the earth forces magma up through a weak point
Relationship Between Australia And India
187 Words | 1 PagesThe relationship between Australia and India began as a bilateral trading partners and has been further strengthened over the years. Both countries have committed towards generating jobs, investments and foster economic growth and to reinforce the bilateral strategic partnership. The Information Technology industry in India has transformed India from a bureaucratic economy to a country with pioneering entrepreneurs, with this revolution India has secured a place among the biggest IT capitals of the world. Only a meagre portion of the country’s IT infrastructure constitute of native Indian companies, and most of the revenue is generated from exports of services, however, this has significantly been improved. One of India’s primary service exports
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