Geology test 4
Last Modified: 2011-12-05
Related Textbooks:Earth: An Introduction to Physical Geology (9th Edition)
3 zones of GW:
slight adsorption of red light due to the O-H bond stretching of the water molecule.
large relatively flat masses of floating ice that extend seaward from the coast but remain attached to land along one or more sides
cracks in the ice sheet that form in a zone of extension where the central part of the glacier is moving faster down-slope than the outer edges of the glacier, creating tensile stress. These crevasses stretch across the glacier transverse to the flow direction. They generally form where a valley becomes steeper
wastage of a glacier that occurs when large pieces of ice break off into the water
an amphitheater-shaped basin at the head of a glaciated valley produced by frost wedging and plucking
depressions created when blocks of ice become lodged in glacial deposits and subsequently melt
1. polar or high-latitude deserts
2. middle-latitude deserts
3. trade-wind deserts (low-latitude deserts) 4. coastal deserts
5. rain shadow deserts
vast desert area generally occurring within latitude 30°-50° north or south of the Equator in the interior of a large continental mass, usually situated in the lee of high mountains that stand across the path of prevailing winds
Polar deserts are areas with annual precipitation less than 250 millimeters and a mean temperature during the warmest month of less than 10° C
streams that are usually dry and carry water only in response to specific episodes of rainfall
depression evacuated by wind in easily eroded materials
a streamlined, wind- sculpted ridge having the appearance of an inverted ship’s hull that is oriented parallel to the prevailing wind
pyramidal sand mounds that accumulate in ares with multidirectional wind regimes
heavy minerals usually crystallize early and settle to the lower portion of the magma chamber during cooling of a large magma body
metamorphic zone developed in the contact area when carbonate sedimentary rocks are intruded by an igneous body
zone of obvious alteration due to igneous intrusion
U.S.S.R. launched the Sputnik One satellite into orbit on October 4, 1957
-Gravitational attraction causes the mass of gas and dust to slowly contract and it begins to rotate
-The dust and matter slowly falls towards the center
-Most of the mass is in the center and there is turbulence in the outer parts
The Sun has a diameter of about 1,392,000 kilometers (862,000 miles), about 109 times that of Earth
-It has a surface temperature of about 5,500 oC
-The temperature in the center of the Sun is believed to be greater than 14 million degrees
The magnetic field causes strong heating in the corona, forming active regions that are the source of intense solar flares and coronal mass ejection
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