How is a valley formed
[DOCX File]Alps Education Kit - Geology
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rift valley. formed along the centre of the plateau, with an east-west trending branch where Tasmania moved southward away from Victoria. The rift valley, similar to today’s East African Rift Valley, was formed by stretching of the . crust. leading to the valley floor dropping along a series of faults.
[DOC File]VOLCANIC AND GEOLOGIC TERMS
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Owen's Valley is a well known cinder cone. Cirque: A steep-walled, horseshoe-shaped depression high on a mountain. that is formed by glacial erosion. Clast : An individual grain or constituent of a rock. Cleavage: The breaking of a mineral along crystallographic planes (zones of weakness), depending on mineral orientation, thus
[DOC File]GUIDE TO FIELD TRIP STOPS
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Descend to the beach where the bluffs begin at the beach. Notice the contact that represents a paleo-valley wall (Fig. 2-1). The valley formed when the San Dieguito River lagoon was cut during low sea level and subsequently filled in. Looking north, notice that the bluffs comprise a . lower cliff-forming. portion and an . upper slope-forming ...
[DOCX File]River Erosion
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River Erosion Gizmo. Gizmo W. arm-up. To begin, check that . Mountain stream. and . Short-term erosion . are selected. The Gizmo shows a typical stream that is moving through a hilly area.
[DOC File]V-Shaped Valleys
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So how does a v-shaped valley form? 1. Vertical erosion (in the form of abrasion, hydraulic action and solution) in the river channel results in the formation of a steep sided valley 2. Over time the sides of this valley are weakened by weathering processes and continued vertical erosion at the base of the valley 3.
[DOC File]Rocks, Weathering, Erosion and Deposition
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4) U-shaped valley – formed when a glacier flows into and erodes a valley, changing the valley from its original V-shaped to a U-shaped valley; also called glacial troughs 5) Hanging valleys – smaller glacial valleys that join the deeper main valley; valleys form because smaller glaciers cannot carve a valley as deep as the main glacier.
[DOC File]Brief History of the White Tank Mountains and the Western ...
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The White Tank Mountains were the western boundary for the Phoenix Valley inter-mountain lake that formed from northern outwash, which also carried great amounts of Tertiary and Quaternary sediments into southern Arizona. Over the past 30MY, the valley experienced flooding, the formation of a lake and its subsequent evaporation that formed ...
[DOC File]Caves, Canyons, Cactus & Critters
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Caves have not formed in this manner in the limestone of the Guadalupe Mountains in New Mexico and Texas. This is primarily due to the low amount of precipitation each year. The gypsum caves of New Mexico and Mammoth Cave of Kentucky were formed by similar processes. However, they are formed on different time scales.
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