Problem 1.3 Such slip lineations can be used to ine the orientation of slip on a

Question

Problem 1.3 Such slip lineations can be used to ine the orientation of slip on a fault, and, therefore, whether the motion on the fault was strike-slip. dip ique-Slip. A geology student who was just learning to use a Brunton compass recorded the orientations of five slip lineations on one fault surface. The strike and dip of the fault surface is 320, 47 NE. The student's five Fault surfaces sometimes contain overprinted slip lineations (fault striae) recorded lineation orientations are recorded in the table below Determine which li student beca answers. For the valid neation orientations are feasible and which ones must represent a mistake on the part of the use the given orientation does not lie within the fault plane. Give a brief explanation for each of your five lineation orientations, indicate which type of fault motion is indicated. orienta Lineation (plunge and trend) Feasible? (yes or no) Type of motion indicated (strike-slip. dip-slip, or oblique-slip) Explanation a) 34, due north b) 0°, 140 c) 33°, N66 W d) 47, 050 e) 75°. due north

Explanation / Answer

Ans:

a) yes, fissible. As the lineation plunge is lesser than bed dip angle and direction is towards due north so it is fissible.Type of motion is oblique slip.

b) Yes, fissible. As it is towards strike of fault. It is strike slip motion.

c) No, not fissible. As it is opposite direction of fault plane.

d)Yes, fissible. It is towards dip of the fault plane. it is dip slip motion.

e) No, not fissible. As it is larger than dip of the bed. a lineation pluge always lower than fault plane dip angle.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.