Assignment 1. For the following geologic cross section, determine the sequence of events using the principles described above. Write down the sequence of letters, from oldest to youngest, along the side of the figure. Between each pair of letters, write down the principle you used to determine the relative timing of the rock or event. In this cross section, Z and I are igneous intrusions, T is fault, C and L are unconformities, and the other letters denote sedimentary rocks. Youngest M M Oldest

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