Gondwanaland‚ Science 905 Section I In the late nineteenth century‚ on the basis of comparative geological evidence‚ the Austrian geologist‚ Edward Suess‚ founded a theory that a single supercontinent‚ which he called Gondwanaland‚ an ancient landmass that consisted of the present continents of South America‚ Africa‚ Australia‚ and Antarctica as well as the Indian subcontinent. Gondwanaland is believed to have been intact at least twice‚ about 350 million years ago and about 200 million years ago
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Haiti Earthquake The last major earthquake to hit Haiti prior to the 2010 was in 1984. On the 12th of January 2010 the small Caribbean country of Haiti was hit by a catastrophic earthquake of 7.0 magnitude. The earthquake struck on the afternoon of the 12th of January at 4:57pm and hit south-west of the Haitian capital of Port-au-Prince killing 316‚000 and affecting millions of residents. 1.5 million people were displaced and approximately 250‚000 residences and 30‚000 commercial buildings were
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Many hydrothermal mineral deposits of copper‚ gold‚ silver‚ and other metals have been found in the countries bordering the Pacific Ocean. Can you offer an explanation for this remarkable concentration? If you were part of a team of exploration geologists looking for large copper deposits‚ where would you focus your search? | | | 4. | Given that we are now dependent on nonrenewable resources of energy and minerals‚ and that the world’s population continues to increase‚ how do you think human
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soil Disturb soil Undisturb soil do not retain the in-situ properties of the soil during the collection process. retain the structural integrity of the in-situ soil engineers and geologists collect are disturbed samples because they are easier to collect Collecting a perfectly undisturbed sample is difficult commonly test disturbed soil samples for soil type and texture‚ moisture content‚ and nutrient and contaminant analysis
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in Earth’s history‚ and the outcome of these changes has been anything but idle in the evolution of primates. These drastic transformations in the planet’s atmosphere have been the impetus of evolution among species and has sparked interest to geologist and paleoanthropologist for years‚ resulting in a number of hypothesis that “propose that climate-driven environmental changes during the past 7 million years were responsible for hominin speciation‚ the morphological shift to bipedality‚ enlarged
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The newly found petroleum supplies changed the nations is southwest Asia in a couple of ways. Nationalism was emerging in southwest Asia as a major‚ major force. Nationalism wasn’t the only thing that was emerging though. It’s economy was starting to grow and take a new course that it never did before. In the industrialized countries‚ there was a demand for petroleum products. This demand brought the expiration for oil in Asia. The American and European companies were the ones who discovered oil
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Glaciers have formed nature’s most attractive scenery on this earth. They are enormous icy rivers that often run thousands of feet deep and wide and will run for many miles in length. They cover huge amounts of land and can change land into beautiful mountains with many different features. Glaciers are one of nature’s most powerful forces and have a very slow process. One area where glaciers have been the most notable has been in Yosemite National Park in California. There we can see many glacial
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The Cause of the Mass Extinction in the Late Cretaceous Period Dinosaurs first appeared around 245 million years ago‚ and they lived for 180 million years. Then suddenly‚ 65 million years ago they went extinct. Not only did all the dinosaurs die out‚ but also up "to 75% of all marine genera were lost" ("mass extinction"). This leaves scientists wondering about what could have led to this mass extinction in the Cretaceous Period. They have collected evidence from fossils and earth’s geography‚ to
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I.THEORIES ON THE ORIGIN OF THE PHILIPPINE ARCHIPELAGO 1.1 Pacific Theory * By Beily Willis (geologist) * Occurs 200 million years ago in Pacific Ocean ( Eastern Region of Asia) * When volcanoes erupted continuously . (volcanism) * Japan‚Taiwan‚Indonesia‚ Solomon islands and new Zealand (pacific ring of fire) * 250 volcanoes in said countries and 22 active volcanoes in Phil. 1.2 Asiatic Theory * By Dr. Leopoldo Faustino * Diastrophism (deformation of Major feature
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The Grand Canyon National Park Have you ever wondered how it would feel to hike along a canyon that has never before been seen by another man? Or look out into the open and see nothing but vast caves? People from all over the world come to experience that at the Grand Canyon National Park‚ located entirely in North Arizona. With it’s vast canyons‚ uncharted caves and valleys‚ the Grand Canyon is a very popular park for hikers of all sorts‚ whether you are experienced or beginner‚ the park offers
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