america part one geography chapter i a general introduction to physical geography i the location of...
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AmericaPart One Geography
Chapter I A General Introduction to Physical Geography I The location of America in the world :
in the central part of North America with Alaska in the northwestern
part of North America and Hawaii in the central Pacific ( Maps 1&2).
Map 1 Tthe map of the world
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Map of the world
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Map 2 North America
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II.Three Geographical Divisions ( Maps 3, 4,5,6,7&8)
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Map 5: Landform of America
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Map7 The topography of America( 美国地形图 )
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Map8The Cross Section Map of American Continent( 美国大陆横剖面示意图 )
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The eastern part highlands formed by the Appalachian
Range one sixth of national territory on the continent, 800 meters above sea level. The range from north Maine to
central Alabama, covering a distance of 1200 miles.
The width of the upland belt: not more than 300 miles.
Appalachian Spring
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Picture1 Appalachian Range
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Three components of this upland belt: the Piedmont Plateau( Pictures6,7), the
Appalachian Plateaus and the Appalachian Range(Pictures7,8,9,10).
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Picture6:Appalachian Highlands: Piedmont Plateau
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Outer Piedmontrolling upland; erosion and deep The Outer Piedmont is a gently weathering have long since obliterated surface indications of the folded bedrock beneath. Picture9:Appalachian Highlands: Valley and Ridge
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The Blue Ridge is composed of complexly folded and faulted igneous (granitic) and meta
morphic rocks.
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The Atlantic plain : the Florida Everglades.
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II.The western part: high plateaus
and mountains formed by the Great Cordillera Range, the Coast Range,
the Cascades and the Rocky Mountains, holding one third of the country’s territory on the continent.
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1.Yellowstone National Park (1) The hydrothermal( 热液的 ) featuresOld faithful, the first national park in the world, wild geologic( 地质的 ) history, caldera( 火山口火山爆发而形成的环形山或大山核心部分的崩塌而形成的环形山 ), the hydrothermal features. the deepest pool in the park, hence its name, and actually erupted as a geyser间歇泉 in 1987,cooking hillside, changed as a result of a number of earthquakes in 1978-1979,200 degrees Fahrenheit ( Pictures1,2,3,4,5 )
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Picture1 Old Faithful
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Picture 2 Abyss Pool
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(2) Wildlife(Pictures 1,2,3)animals roam freely , the buffalo
Picture 1: The buffalo
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Picture 2: Moose 驼鹿
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(4) Rivers, Waterfalls, LakesYellowstone Lake, the largest lake in the world over 7,000 feet
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Picture 6:Grand Canyon of the Yellowstone
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The canyon and cliffs The canyon and cliffs below are on the Yellowstone River. Pinnacles are basalt( 玄武岩 )columns which are formed as lava 熔岩 , 火山岩 cools and contracts(pictures1,2 )Tower Falls: the wat
er drops 132 feet .
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Tower Falls
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Rock Under Construction Mammoth Hot Springs Yellowstone National Park
Wyoming, USA
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Mammoth Hot Springs Yellowstone National Park Wyoming, USA
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The Grand Canyon of the Yellowstone National Park Wyoming, USA
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The Sierra Nevada Yosemite National ParkThe Pacific Mountain System: the first chain: the Cascade Range in Oregon and Washington. the second chain: the California Coast Range, the Oregon Coast Range. Between the two chains lies the valley of California, 450 miles long and 50 miles wide.
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Death Valley
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