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Plate-Tectonic
The earth that we live in, from the scientific study, are formed from massive materials from millions of years ago. Scientists and geologists never stop the study of every inch of the earth's composition, but up to now, questions and debates brought up issues and fascinating stories of how the earth and its components were formed.
The history and evolution of the earth, its continents, and the bodies of water, are still yet to be proved. From the history of the solar system, the earth was formed from a large amount of rocky debris that fall together to form our planet. A massive material however crashed to the earth, melted its composition, solidified later, and formed crusts that created the earth's continents.
These crusts are unfathomable, too deep to enable scientists to conduct a study of what composes them and the various chemical processes that take place underneath the crusts. Only the natural activities, such as eruption of volcanoes, allow scientists to examine the geological features of the earth's surface that continuously changes its formation due to the plate tectonic activities. Plate tectonics, as defined in the article, is the continuous motion of parts of the earth's surface that causes its changes. Compared to Venus, our sister planet, the earth changes its components faster. In fact, Magellan's space probe orbiting radar found that plate tectonics do not occur in Venus. Venus doesn't show signs of equivalent processes the earth's surface experiences.
Conclusion
The pre-studied formations and changes that take place in the earth's surface can make us aware of taking care of our environment. The natural activities of the earth's surface may be the effect of the things that we do to our environment and on how we deal with our mother earth.
Bibliography
S. Ross Taylor and Scott M. McLennan. The Evolution of Continental Crust.
SCIENTIFIC AMERICAN, January 1996 Volume 274 Number 1 Pages 76-81. http://euclid.dne.wvnet.edu/~jvg/Env105/lecture%20notes/cont_crst.html
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plate tectonics is responsible for changing continental landmasses through geological occurrences. Thousands of years ago the earth's surface has been hypothesized as one big landmass. The Earth's surface has been constant motion. "Fragmented into giant sheets of solid rock that glide atop a layer of hotter, more pliable material, the globe's appearance is forever changing." [Cowen, 1999]. These plates are semi-rigid, floated on flow of mantle. The plates measured around
continental drift to the present to explain the plate tectonics theory and how the Earth is forever shifting. Use some examples of past and present changes in the earth and the effect they caused. A newer theory in geological history, plate tectonics is used to explain many geological changes in the Earth, both past and present, and indicates how the Earth is forever adjusting and shifting, creating uplifts and
Plate Tectonics and Landform Processes The Aleutian Islands, Alaska The Aleutian Islands are located along the southwestern coast of Alaska, ad at the northern edge of the Pacific plate. This plate runs along the Pacific coast of North America, with its well-known faults -- the San Andreas and the Denali -- causing the strike-slip plate motion that is familiar to residents of the Pacific coastal areas. However, at the Aleutian Island location
Continental Drift and Plate Tectonics Theories It is by now universally recognized that the continents and other land masses on the earth are constantly moving, albeit at a very slow rate and have been on the move for millions of years. The land masses have collided, broken apart and drifted across the planet while floating on the fiery mantle beneath the outer layer of its crust. The Continental Drift and