Evalution of the Universe
Evolution of the Universe
Mary Benton, Kenneth Mascis, Desire’e Ruegsegger, Carina Vega
GLG/150
April 22, 2013
Phyl Amadi
Evolution of the Universe Intro The evolution of earth will always remain a mystery. However, there is many scenarios and evidence to help understand the evolution of earth, its sun, planets, and the moon. The paper will derscribe how the earth and its atmosphere evolved with the help of other bodies. Which includes a discription of the formation of the bodies that plays a role in the evolution of earth. Also, a discription of the earth, sun, moon, planets, and other bodies motions according to Copernicus, Kepler, and Gallileo discoveries.
Evolution: Earth and Its Atmosphere Plate tectonics are the ultimate process that controls the changes on Earth. Dynamic activity like volcanism, meteorite impacts, mountain building, and erosion, is how our Earth has come to its current state, while the continuing motion of the Earth is what’s driving the resurfacing of the Earth resulting in faulting, basin formation, and volcanism. The combination of gravity and the Earth’s internal heat is the driving force for this continuous motion. Earth’s internal heat comes from consistent decay of radioactive elements, crystallization of the inner core, and the heat left-over from planet formation. Recent discoveries suggest that features of current Earth come from the planetary melting and planetary accumulation which involves the differentiation of objects. Mars and the Moon underwent global differentiation which allowed the separation of the core from the mantle and formed large parts of the Earth’s still-existing crust. The atmosphere and oceans first appeared about 4.5 billion years ago, soon after the Earth and Moon completed their formational phases (Mirali & Skinner, 2009). Oxygen was nearly absent in the atmosphere of the early Earth. The Great Oxygenation Event (GOE), or Great Oxidation, was the
Mary Benton, Kenneth Mascis, Desire’e Ruegsegger, Carina Vega
GLG/150
April 22, 2013
Phyl Amadi
Evolution of the Universe Intro The evolution of earth will always remain a mystery. However, there is many scenarios and evidence to help understand the evolution of earth, its sun, planets, and the moon. The paper will derscribe how the earth and its atmosphere evolved with the help of other bodies. Which includes a discription of the formation of the bodies that plays a role in the evolution of earth. Also, a discription of the earth, sun, moon, planets, and other bodies motions according to Copernicus, Kepler, and Gallileo discoveries.
Evolution: Earth and Its Atmosphere Plate tectonics are the ultimate process that controls the changes on Earth. Dynamic activity like volcanism, meteorite impacts, mountain building, and erosion, is how our Earth has come to its current state, while the continuing motion of the Earth is what’s driving the resurfacing of the Earth resulting in faulting, basin formation, and volcanism. The combination of gravity and the Earth’s internal heat is the driving force for this continuous motion. Earth’s internal heat comes from consistent decay of radioactive elements, crystallization of the inner core, and the heat left-over from planet formation. Recent discoveries suggest that features of current Earth come from the planetary melting and planetary accumulation which involves the differentiation of objects. Mars and the Moon underwent global differentiation which allowed the separation of the core from the mantle and formed large parts of the Earth’s still-existing crust. The atmosphere and oceans first appeared about 4.5 billion years ago, soon after the Earth and Moon completed their formational phases (Mirali & Skinner, 2009). Oxygen was nearly absent in the atmosphere of the early Earth. The Great Oxygenation Event (GOE), or Great Oxidation, was the
References: Alden, A., 2013. Birth of the Earth, About.Com, Retrieved From: http://geology.about.com/od/nutshells/a/aa_earthbirth.htm. Carlson, R.W. and Boyet, M., 2008. Composition of Earth 's interior: the importance of early events. Philosophical Transactions Royal Society of London A, 366: 4077-4103 Kasting, J. F., & Siefert, J. L. (2002). Life and the evolution of earth 's atmosphere. Science, 296(5570), 1066-8. Retrieved from http://search.proquest.com/docview/213574540?accountid=35812. Merali, Z., & Skinner, B. J. (2009). Visualizing Earth science. Hoboken, NJ: Wiley.