Problem 5.3 A fault strikes due north and dips 7ooE. A limestone bed with an att
ID: 2075554 • Letter: P
Question
Problem 5.3 A fault strikes due north and dips 7ooE. A limestone bed with an attitude of 325. 25 osw is cut by the fault. Hydrothermal alteration along the fault has resulted in an ore shoot at the intersection of the two planes. l What is the orientation of the ore shoot? 2 What is the pitch of the ore shoot in the plane of the fault? 3 What is the pitch of the ore shoot in the plane of the limestone bed? Problem 5.4 One limb of a fold has an attitude of o6 l o. 48°SE and other limb 028°. 55°Nw. What is the orientation of the fold axis?Explanation / Answer
Problem 5.3
1) Orientation will be towards south because of the joint effect of SE and E
2) As we know that Pitch is actually the angle between a line in a plane & the horizontal, measured in the plane, therefore the pitch of the ore shoot in the plane of the fault = 70o+25o = 95o
3) The pitch of the ore shoot in the plane of the limestone bed = 70o + 325o = 395o