Name: GEO 401 Lab 9 Chapter 10- Geologie Structures, Maps, and Block Diagrams Pa

Question

Name: GEO 401 Lab 9 Chapter 10- Geologie Structures, Maps, and Block Diagrams Part I. Complete all of the block diagrams attached to this handout. These pages are copies of pages co from your lab manual. 2al 292 Part I1 fteint laurel 1-The images at the right show 2 identical block diagrams completed only in the map view of a fault cutting dipping strata. The arrow on the fault indicates the dip direction of the fault. wau a) In the top diagram (A), assume the motion on this fault is primarily strike slip. Fill in the following: . Fault and contacts on front and side of the block. Arrows indicating the slip direction in map view. p . This is a ria ni_-lateral fault. b) In the bottom diagram (B), assume the motion on (A this fault is primarily dip slip. Fill in the following: Fault and contacts on front and side of the block. U and D in the map view indicating the side of the fault that moved Up or Down. Arrow on front side of block indicating relative motion of the fault. . This is a noomal fault. f you are having trouble visualizing this look at cardboard model 6 in the back of your manual for help.)

Explanation / Answer

Part II

a) This is right lateral slip fault. Because the opposite block moves towards right side with respect to each other.

[Note: it is not oblique slip fault because question mention that motion of fault is primarily strike slip. We can not see any dip slip movement in the picture. So, it is strike slip fault and it is right lateral as the bed moves to the right side with respect to another bed.]

b) This is oblique slip fault. Because oblique slip fault has component of both dip-slip (normal or reverse) and strike-slip. Here, picture (top view) shows that the bed (A) moves along strike and question mention that motion of fault is primarily dip slip. It means the fault has component of both strike0slip and dip-slip.

[Note: it is oblique slip fault because question mention that motion of fault is primarily dip slip and we see strike slip movement from the top view of the picture. So, it is oblique slip fault. If it is not normal or reverse fault then bed (A) does not move along strike)

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