my question are : 1. when did F occur and how do you know? 2. do you think B hap
ID: 155122 • Letter: M
Question
my question are :
1. when did F occur and how do you know?
2. do you think B happen before or after f? how do you know?
3. what is the very first event to happen in this picture?
4. did the bending and of layers D,J,I,A,G occur before or after layer E and how do you know? which laws of stratigraphy are you using?
1. when did F occur and how do you know? 2. do you think B happen before or after f? how do you know? 3. what is the very first event to happen in this picture? 4. did the bending and of layers D,J,I,A,G occur before or after layer E and how do you know? which laws of stratigraphy are you using?Explanation / Answer
1. F occured after C,E,D,J,A,I,G,B but before H. It can be felt from the fig. that F cuts through G and B which indicates that F was formed after them(G & B).
G is older than D,J,I,A - F is older than G - hence F occured after C,E,D,J,A,I,G.
B looks to be an igneous intrusion, as F cuts through it, it occured after B.
H is not affected or cut by F, which means that F occured before H.
2. B occured before before F. B is an igneous intrusion, as F cuts B,C,E,D,J,A,I,G it gives a sense that F was formed after these all.
3. The very first event to happen is upliftment and inclination/bending of layers D,J,I,A,G appearently due to the large igneous intrusion.
4. Bending of layers D,J,I,A,G occured before E.
As D,J,I,A,G are present beneath horizontal bed/layer E this means that layers D,J,I,A,G occured before E. The laws used are
a.) Law of Superposition. ( oldest strata will be at the bottom of the sequence, and youngest at the top)
b.) Cross-Cutting Relations. ( geologic feature which cuts another is the younger of the two features.)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.