University:
Campbell University
Course:
GEOL 112 | Historical Geology
Academic year:

2023
Views:

203

Pages:

2
Author:

Melvin Mahoney

KEY Fossils Worksheet – Earth Science Name: ____________________________ __C__ 1. Using the diagram below, which of the following fossils (A, B or C) is the oldest? _____ 2. What is the order of the layers? Which relative dating technique(s) did you use to figure out the order of the layers? A,B,C  Principle of original horizontality  Principle of superposition Examine the following diagrams. Columns I and II contain rock layers A, B, C and D, E, F. Both columns were taken from the same dig site. 3. Which two layers are of approximately the same age? C & D 4. Which layer is the oldest? 5. Which layer is the youngest? same index fossil F A 6. Have any of the rock layers undergone metamorphism? Yes, layer E. We know this as the grain structure has been compressed from horizontal layers into larger grains. KEY A B C water 25% U 75% Pb 75 million 50 million

Fossils and Relative Dating Worksheet

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