The following four questions test your understanding of the…
The following four questions test your understanding of the principles of relative dating. In the cross section below, intrusion A is an igneous rock formation radiometrically dated at 37 million years, H is a fault, and O and I are unconformities. In the following four questions you are asked to use the principles of relative dating to come to conclusions about the rock layers. Image Description Diagram of several cross-sections. Starting from the top, an F layer runs horizontally across the surface. Beneath the layer F are several other layers going diagonally down across the screen. Four layers meet layer F from below. Starting on the left side of layer F is layer J. To the right of layer J is the unconformity line labeled I. To the right of the unconformity line I is the layer N, K, and B with B being the rightmost layer touching layer F. Going back to the layer J, which is below the unconformity line I, there is a portion of the igneous rock intrusion A in the middle of J. The A intrusion spans from the unconformity line I down to the bottom of the image. To the left of the instrusion A and below the layer J lies layer D and M, with layer M beneath layer D. Beneath layer M lies the unconformity line labeled O. In the middle of the unconformity line O is a fault labeled H. The fault line H runs from line O to the bottom of the screen, offsetting the last four layers C, L, G, and E, with E being the last layer.