Key Term (Explain what part of the Sandwich Lab this was) Law of Superposition Definition Draw a sketch to help you remember How did this form? Ex: Deposition of sediments (__making the sandwich layer by layer__) Law of Horizontality (______________________________ ______________________________) Cross-cutting (______________________________ ______________________________) Intrusion (______________________________ ______________________________) Normal Fault (______________________________ ______________________________) Thrust (Reverse) Fault (______________________________ ______________________________) Syncline (______________________________ ______________________________) Folding (______________________________ ______________________________) Tilting (______________________________ ______________________________) What are some reasons that would cause a layer to NOT be horizontal? Stratigraphy Study Guide Name____________________ Hr____ Look at the diagrams below. Put the events in order from first (oldest) to last (youngest & ALSO, EXPLAIN how they occurred/how you know it is that old (i.e.—laws of crosscutting relations, horizontality, and superposition, etc.) _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ OLDEST______________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ OLDEST______________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ OLDEST______________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ _____________________________________________ OLDEST______________________________________