Question 46-48 Figure 6: https://postimg.org/image/755wb7uxor/ 42. Alternating l

Question

Question 46-48

Figure 6: https://postimg.org/image/755wb7uxor/

42. Alternating layers of pyroclastic flows and lava. For questions 43 through 45 please refer to the magnetic lineations of the seafloor across mid-ocean ridges: Figure 4. Questions 43 through 45: Matching: For each of the following statements indicate the lineation pattern that best matches. Ridge with slowest rate of seafloor spreading. Ridge with moderate rate of seafloor spreading. A. Shivering Sea Ridge (A-A') B. Southern Narrow Sea Ridge (B-B') C. Sunset Sea Ridge (C-C') 43. 44. 45. Ridge with fastest rate of seafloor spreading. For questions 46 through 50 please refer to the topographic map from a mountainous area near Thenn Figure 6. Questions 46 through 50: True/False For each of the following statements indicate whether it is true or false. Note: True is ParScore® form and False is F(b), T(a) on your The creek in the depicted canyon generally flows to the west in this area. The eastern part of this canyon was cut by stream erosion. An alluvial fan is forming below the north south trending canyon in the lower middle of the map. 46. 47. 48. 4 The upper canyon trending north-south mentioned in question 48 was cut by stream erosion.

Explanation / Answer

46. Yes, the creek is flowing westward as the contours are decreasing in the west ward direction (eg. 7000,6800,6000etc.)

47. Yes, the light brown colour having decreasing value of contour is showing the stream erosion which is happening towards the eastern part of this canyon.

48. Yes, an alluvial fan is forming below the north south trending canyon in the middle of map.

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