Instructions: Now that you possess the knowledge that you require to figure out the sequence of events, write out the lettered sequence (from oldest to youngest) below the figure. ![]() Is this zone of contact shown in the picture? (yes or no)_ Question #12: The caption describes a “zone of contact” forming as the dike intruded into the rock layers. Question #11: Is there evidence in this picture that there was another layer deposited between layer D and layer F? Explain why or why not. What might you conclude regarding their depositional history? _ Question #10: Supposed that letter B and C had the same fossil type. Question #9: Which law of geology determines which orientation letter F was deposited? _ ![]() Question #8: How do you know, based on your knowledge of unconformities, that there is not one represented in Figure 6? _ Principle of Original Horizontality, states that sediments are deposited in flat, horizontal layers. Question #7: Which letter represents a layer of shale? _ STENOS LAWS Principle of Superposition, states that in an undisturbed sedimentary sequence, the older beds are on the bottom, and the younger beds are on the top. Question #6: Which type of unconformity (of the three listed in Figure 5) is shown in Figure 2? _ Which is older… the siltstone or the stream? _ Question 5: You notice at the top that the siltstone is cut by several streams. Question#2: Are the rock layers in the Figure 1 flat? Yes or No (hint: for reference, compare with the rocks in the lower part of Figure 7) ![]() This law states that, for sedimentary rock layers, these layers were originally deposited horizontal, or flat. Question #1: Which sedimentary rock layer is the oldest? _ This states that, for sedimentary rocks (those they occur in layers, like the ones above), the oldest layer is at the bottom and the youngest layer is at the top.
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