2.1 plate motion inquiry using GPS time series 2.1 plate motion inquiry using GP

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2.1 plate motion inquiry using GPS time series
2.1 plate motion inquiry using GPS time series

4.2 Karst Processes and Topography ACTIVITY Name: A. Analyze FIGURES 4.4 and 4.5. Date: Course/Section: 1. In the area photographed in FIGURE 44, there is no soil developed on the limestone bedrock surface, yet abundant plants are growing along linear features in the bedrock. What does this indicate about how water travels through bedrock under this part of Oklahoma? 2. Ir you had to dall a water well n he area ued in FIGURE , where would you dril relative to the pattern of plant growth) to find a good supply of water? Why? 3. REFLECT & DISCUSS How is FIGURE 4.5 related to FIGURE 4.4? B. It is common for buildings to sink into newly formed sinkholes as they develop in karst regions. Consider the three new- home construction sites (labeled A, B, and C) in FIGURE 4.2, relative to sinkhole hazards. 1. Which new-home construction site (A, B, or C) is the most hazardous? Why? 2. Which new-home construction site (A, B, or C) is the least hazardous? Why? 3. REFLECT & DISCUSS Imagine that you are planning to buy a new-home construction site in the region portrayed in FIGURE 4.2. What could you do to find out if there is a sinkhole hazard in the location where you are thinking of buildi your home? C. Study the orthoimage of the Park City (Kentucky) topographic map in FIGURE 4.3. Almost all of this area is underlain b limestone. The limestone is overlain by sandstone in the small northern part of this image (Bald Knob, Opossum Hollow that is covered by dense dark green trees. 1. How can you tell the area on this orthoimage whe re limestone crops out at Earth's surface? 2. Reall that on a topographic map, a depression is shown by a contour line, with hachures(tic marks), that forms a c loop. Describe the pattern of depressions on the topo map of Park City. Why do some of the depressions contain po while others do not? 3. REFLECT & DISCUSS Notice that there are many naturally formed circular ponds in the northwest half of the i (The triangular ponds are surface water impounded behind dams constructed by people.) How could you use the elevations of the surfaces of the ponds to determing how groundunton QLIL L

Explanation / Answer

A. 1. The hot water travels through cracks for rectangular drainage.

2. We have to drill where more plants or vegetation is observed as these tends to grow in areas with water.

B.1. House B is the most hazardous. It is located over a cave.

2. House C is the least hazardous. It is not located over a cave.

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