only question 3, not including b pleaae Chapter 14 Structural Geology 271 FIGURE
ID: 120099 • Letter: O
Question
only question 3, not including b pleaae
Chapter 14 Structural Geology 271 FIGURE 14.12 Block diagram to be completed for Problem 3 N Label the hanging wall and footwall on the top and side faces. With Side 1 up, number the beds in order of age, with I the oldest. Are the beds at the surface of the upthrown block generally older or younger than those at the surface of the downthrown block? Why? What kindof fault is this? Reuevse .) Figure 14.12 is a block diagram showing a fault and a number of folds. The front face of this diagram is perpendicular to the strike of these features, so you can easily measure the dip of the fault and bedding planes where indicated. North is into the page, west and east are marked. se aprotrator to measure the dip angles along a single fold a points 1 through 5 on the front face of the diagram. Hoizontal lines indicate the precise location for each measurement. 2. 3. 5. A geologist would take strike and dip measurements at convenient outcrops on the surface. Take dip measurements along the front of the block diagram, as close to the surface as possible. Put the appropriate strike and dip symbols in the six white ovals along the top of the diagram, and write each dip measurement in the appropriate spot. O Draw dashed avial traces for the thre folds not cut by a fault. Put therm along both the vertical and orizontal surface, and include the appropriate symbol from Figure 14.4. C What type of fault is illustrated? Be sure the correcet map symbol is used to indicate dip. Put arrows on the vertical surface and map symbols on the horizontal surface to indicate the relative sense of motion across the fault. 4.13. Using the information provided for each diagram, fill in the blank Partially completed block diagrams are shown in Figure l faces on the blocks and answer the questions. the front face of Figure 14.13A shows the different rock units encountered in an old oil well. Use the available information to help you complete the diagram. What kind of fold is this (anticline, overturned, or imaginary line formed where the axial surface intersects another surface). syncline; upright, inclined, overturned, or recumbent; plunging or non-plunging)? Illustrate the position of the axial surface of the fold by sketching its trace on the top and end of the block (the trace is thExplanation / Answer
1. 20degree angle
2.10degree angle
3. 0 degree angle
4. 50 degree angle
5. 90 degree angle approx.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.