3. Describe the “big splash” theory of the Moon’s origin? The Big Splash Theory is the current theory that explains the formation of the Moon. This theory states that approximately 4.5 billion years ago, the Moon was formed as a result of an object approximately the size of Mars colliding with Earth, causing less dense portions to be blasted into space. The clash created high temperatures and pressures, which in turn caused denser materials (like Iron) to become part of the Earth’s core. The less dense materials were blasted into space adding to the material orbiting the Earth. These less dense portions gravitated toward each other, creating the Moon. Evidence supporting the Big Splash Theory came from rock and soil samples taken during the Apollo landings on the Moon.…
Scientist believe that the collision of earth with a smaller body caused the earth to tilt on it axis at 23 degrees. The blasting debris is said to have formed the moon. The period from the accretion of the earth to the formation of the oldest existing rocks can be retraced to the stratification or differentiation of the earth.…
Crater Lake is a result of a volcanic explosion that happened about 7,000 years ago. A long time ago, the pacific oceanic plate was gradually moving under the pacific continental plate in the process of plate tectonics. The pressure shaped the land to move upward and create a line of mountains that are currently located on the Cascade Range. These lavas piled and cooled on top of each other resulting in mountains like Mazama and Hood. Mount Mazama was built by successive flows of both andesite and dacite lavas. Mount Mazama was a stratovolcano, which was about 12,000 feet high after series of ash, cinders, and pumice explosions built it upward. During…
One theory is that the moon must have broken away from Earth, when the earth was still a rotating ball of molten rock. Earth might have been spinning so fast that part of our planet separated into space, this could be why our chemical composition is similar to the moon. Fission theorist stated that the Pacific ocean might have been the place where the moon material broke off.…
from the earth's Mantle erupt on the earths crust and turn into lava caused by the…
* Meteor Craters form a hole in the ground test for rocks around the volcano…
Over the years NASA has launched many Apollo Missions which have led to our better understanding of space and other planets. In 1972, astronaut Charles Duke from Apollo 16 collected lunar rocks in an effort that they may be tested to determine if the interior water levels of the moon. Recent beliefs are that the moon had almost as much water as earth does when it was first formed. After calculations of the amounts of chloride-35 and chloride-37 that should have been found in lunar rocks and soil to support this belief, scientists have determined that the “bone-dry” calculation made by NASA 40 years ago, is correct and that the moon hasn’t had water in the interior and quite possibly the surface.…
Volcanoes are formed on land near coastal areas when a continental plate and an oceanic plate converge. The oceanic plate submerges, due to its higher density, and is pushed deeper and deeper beneath the surface. The high temperature and pressures below melt the rock which creates hot, buoyant magma. Ultimately this magma rises towards the surface and accumulates in a reservoir, known as the magma chamber. The eruption occurs when the pressure within in the chamber surpasses the pressure of the upper rock, magma forces its way through the cracks in Earth’s crust. Magma that is low in gas and silicon dioxide produces thin quickly spreading lava which has a low viscosity, while a magma that is heavily composed of gas and silicon dioxide will yield a thick, viscose magma. The thicker magma builds up and because of this pressure, will cause a large…
4. Where did the Moon come from? The debris from this collision collected in an orbit around Earth to form the Moon. Capture theory - The Moon was a wandering body that formed elsewhere in the solar system, captured by Earth's gravity as it passed close by.…
Ancient craters whose relief has disappeared leaving only a "ghost" of a crater are known as palimpsests. Although it might be assumed that a major impact on the Earth would leave behind absolutely unmistakable evidence, in fact the gradual processes that change the surface of the Earth tend to cover the effects of impacts. Fortunately, scientists have discovered some untouched craters around the universe.…
One time in Hawaii, in 1888, there was a small village just next to a little beach. Not far from the village, there was a huge “lava pit.” Scientists believed that it was just a volcano that had formed underground and only the opening at the top could be seen from the surface. The lava pit had always been filled with lava, and people wondered if it would ever erupt.…
Mauna Loa is a shield volcano. These volcanoes are usually composed of basalt, which enables them to possess a gentle slope, fluid and pahoehoe lava. The fluidity nature allows the volcano to not be deadly (“Geologic Hazards”, n.d.). The volcano consists of tholeiitic basalt (“Mauna Loa Volcano”, n.d.). Some of oldest rocks in the structure are from 100,000 to 200,000 years ago (“Mauna Loa Earth’s”, n.d.). It is currently on 19.475 N 155.608 W and 13,680…
Hephaestus god of blacksmiths and fire wanted revenge on all the villages that used his gift of metallurgy for war and killing so he went up to Zeus to ask him for a way to devastate their population. Zeus thought for a while and decided to give him the deserted mountains on the others side of the valley and let him chose what he wanted to do with them.…
As more asteroids and other planets collided with planet earth, crust began to cool and water began to form and collect on the surface.…
They are formed near destructive plate boundaries where material from a plate that is descending rises back to the surface, this magma then rises up creating the large bubble of magma below the overlaying rock. They are also formed at continental hotspots, in either situation; the continental crust is being extended locally. This then makes weaknesses that allow the magma plumes to rise over very long periods of time and this process occurring over so much time (in some cases hundreds of thousands of years) is why the magma lakes have such an colossal mass.…