Thanks in advance. GEOL 3650: Energy for Society 3: Visualizing the Earth-1. Geo

Question

Thanks in advance. GEOL 3650: Energy for Society 3: Visualizing the Earth-1. Geologic Maps Lab 2. In general, most rock layers will have dips that are between the horizontal and the will be vertical. When a stream valley cuts such beds, the resultant map outcrop pattewh deflected along the valley. The direction of the deflection is determined by the bed's dip relative to the slope of the valley, The block diagrams in Fig. 2 show two dipping layers cutting across a small stream valley. The labeled lines represent contour lines. The diagrams to the right are map views of the valley showing the contour lines and how they deflect upstream in the valley. The unit's outcrop pattern is shown up t rim. Use the elevations of the contour lines and the position of the unit in the valley to determine the map outcrop pattern. Draw this pattern on the maps to the right. the valley 200 100 200 100 Fig. 2 a. Using your results from above, complete the Rule of Vs. i. If a bed is vertical, its contacts will cut (circle one) point upstream/point downstream/cut straight across a valley ii. The contacts of horizontal beds will point (circle one) upstream/downstream and (circle one) parallel/cross contour lines. ili. If a bed dips upstream, its contacts will point (circle one) upstream/downstream and (circle one) parallel/cross contour lines. iv. Beds that dip downstream will have contacts that point (circle one upstream/downstream

Explanation / Answer

a. i) rule of v states that a vertical bed never forms a V and it goes straight across the topography. Hence the answer would be ' cut straight across a valley'.

ii)  rule of v states that a horizontal bed will parallel topographic contours on a map. Hence the answer should be upwards and parallel contour lines

iii) A dipping bed makes a V in the direction of the dip. Hence upstream and cross contour lines.

iv)A dipping bed makes a V in the direction of the dip. Hence downstream.

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