1. The contact between the granite and the gneiss represents what type of contact? a. intrusive contact. b. fault (tectonic) contact. c. nonconformity. 2. Which rock unit is the oldest in this cross-section? a. Diorite c. Granite b. Basalt d. Gneiss d. angular unconformity. e. disconformity. e. Breccia 3. What principle allows you to best distinguish the age relationship between the gneiss and the diorite? a. law of superposition d. cross-cutting relationship b. law of original continuity e. principle of inclusion c. law of original horizontality 4. The granite cuts across the gneiss, what other principle allows you to distinguish the age relationship between the gneiss and the granite? a. law of superposition d. principle of inclusion b. law of original continuity e. faunal succession c. law of original horizontality