mineral found in almost all sulfide deposits‚ chalcopyrite usually occurs in medium-temperature and high-temperature hydrothermal veins in igneous rocks or metamorphosed igneous rocks. Some economic chalcopyrite deposits form as hydrothermal fluids dissolve copper from igneous rocks and then precipitate it in surrounding contact-metamorphosed sedimentary rocks. Chalcopyrite is most often found with pyrite and other sulfide minerals‚ as well as sphalerite‚ galena‚ dolomite‚ tourmaline or quartz. It
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underlies most other regions). -Spreads across 6 provinces‚ 2 territories‚ and the U.S. Formation: -about 600 million years old‚ thus “Precambrian”. -Igneous and metamorphic rock. Topography: -a peneplain‚ almost a plain 600 metres. -has a lakescape‚ many lakes. Human Activities:-an all season vacation land. -Also called “Mineral Storehouse”: many metamorphic rocks: minerals such as gold‚ copper‚ nickel‚ lead‚ zinc and iron found in Region. -Forestry is also an important industry. -Sparsely populated‚ people
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In general‚ igneous rocks are low in selenium; volcanic igneous rocks are somewhat higher in Se content than other igneous rocks. Sedimentary rocks generally are higher in Se content than igenous rocks. Table *** shows an uneven balance of Se across the globe. Countries such as China‚ India and Sri Lanka have areas of Se deficiency. Selenium deficiency can
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Geology a science that examines the earth‚ its form and composition‚ and the changes it has undergone and is undergoing involves the knowledge of what happened before and the events occurring within the atmosphere requires not only a study of the materials found on earth but an understanding of the various geologic processes aims to develop an understanding of the earth’s materials and how these materials were changed and modified through the action of natural forces over a period of time Geology
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action is the force of moving water on the land. Fast flowing water forces out looses rock and soil from the river bed and bank. Soft rock is eroded faster than hard rock (differential erosion) and overtime the bank will collapse. Abrasion is the wearing away of the river bed by its load. Stones carried by the river smooth the river channel deepening & widening it. Solution occurs when the river dissolves the soft rock over which it flows. The erosion processes mentioned above to form waterfalls
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The Origin of the Earth‚ One of God’s Hidden Secrets “Much of geology is pure speculation and is as such on the same basis as philosophy‚ or must be accepted on faith‚ as the truths of theology” (Rehwinkel 177). For geologists this means that any theory of how the Earth‚ atmosphere and life originated‚ takes faith to believe‚ whether it is the evolutionist’s view or the creationist’s view. Creationists believe that the Earth was created 6000-7000 years ago. This number is based on what the Bible
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AN INTRODUCTION TO IGNEOUS AND METAMORPHIC PETROLOGY OHN D. WINTER An Introduction to Igneous and Metamorphic Petrology An Introduction to Igneous and Metamorphic Petrology John D. Winter Department of Geology Whitman College EB00062387 Prentice Hall Prentice Hall Upper Saddle River‚ New Jersey 07458 Library of Congress Cataloging-in-Publication Data Winter‚ John D. (John DuNann) An introduction to igneous and metamorphic petrology/by John D. Winter. p. cm. Includes
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living creatures‚ but many do not realize how toxic it can be to non-living objects. “Acid rain leads to deterioration of rocks such as limestone and marble (globalwarmingandu.com)”. Acid rain will corrode the rock surface which dissolves the material and then they will be carried away. We tested acid on different types of rocks. The hypothesis is that the sedimentary rock will have the largest change in mass. After a certain degree‚ acid rain is capable of damaging the entire environment. It
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100-200 km e) 1200 km 8) Continental Crust is ________ than Oceanic Crust: a) b) c) d) e) Thicker Less dense More felsic All of the above None of the above 9) Heat and pressure create what type of rocks: a) Sedimentary b) Metamorphic c) Igneous 10) Sedimentary rocks are formed by the lithification of sediments. a) True b) False 11) The fundamental components of the theory of plate tectonics state that: a) The outermost shell of the earth consists of a rigid lithosphere composed
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Kinabalu is essentially a massive pluton formed from granodiorite which is intrusive into sedimentary and ultrabasic rocks‚ and forms the central part‚ or core‚ of the Kinabalu massif. The granodiorite is intrusive into strongly folded strata‚ probably of Eocene to Miocene age‚ and associated ultrabasic and basic igneous rocks. It was pushed up from the earth’s crust as molten rock millions of years ago. In geological terms‚ it is a very young mountain as the granodiorite cooled and hardened only
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