See the vertical cross section below. Indicate the relative ages of various rock
ID: 115915 • Letter: S
Question
See the vertical cross section below. Indicate the relative ages of various rock bodies by placing the letters on the blanks at the right of the figure, from oldest to youngest. Note Rocks B and C are igneous intrusions with the dark XXXX pattern outside the intrusive rock indicating contact effects caused by contact metamorphism. Letters F and Z represent faults (15 pts). This cross section is a difficult one. Be sure to pay attention to the faults.
Normal No Spacing See the vertical cross section below. Indicate the relative ages of various rock bodies by Note Rocks B and C are igneous intrusions with the dark XxXXX pattern outside the intrusive rock indicating contact effects caused by contact metamorphism. Letters F and Z represent faults (15 pts). This cross section is a difficult one. Be sure to pay attention to the faults. Youngest Oldest Xxxx Contact Metamorphisnm L. Name the principle used to determine the relative age between Rock L and Rock T (2.5 pts) II. Name the principle used to determine the relative age between Rock B and Rock N (2.5 pts) III. Use the principle of original horizontality to determine the minimum number of times 5 the rocks in this area have been tilted? Circle One: 023 4 (2.5 pts)Explanation / Answer
Comparing their relative age, the rock strata from youngest to oldest are :-
1.Layer J
2.Unconformity
3.Layer R
4.Layer T
5.Layer L
6.Unconformity
7.Intrusion B
8.Layer N
9.Layer O
10.Unconformity or erosion
11.Fault F(reverse)
12.Igneous intrusion C
13.Fault I (normal)
14.Tilting
15.Layer K
16.Layer R
17.Layer Q
18.Layer M