Part VI. Relative and absolute dating - ELABORATE 2 You are the lead paleontologist on an expedition to Boulder, Colorado, to document two newly discovered dinosaur fossils. To fully document this new discovery, you will need to determine the ages of the rocks containing the fossils, which will allow you to determine when these dinosaurs lived. Question 1. Step 1. Order the rocks units in Figure 9 from oldest to youngest. Step 2. Determine the age of the igneous rock units (A, B, C) based on the following information, and enter this information into the chart below. Rock A is a rhyolitictaining 250 out of 1000 atoms of Element J Rock B is a basalt containing 500 out of 1000 atoms of Element K Rock C is a basalt containing 125 out of 1000 atoms of Element J Figure 9 Rock Age Event Letter (million Sequence years) 9. Youngest R B A P 6 B 2 5 S 4 3 T 2 1. Oldest Question 2. What is the youngest age possible age for the dinosaur fossils in layer S? Youngest age is more than million years old Question 3. What is the oldest and youngest age possible age for the dinosaur fossils in layer R. Oldest age is less than million years and more than million years Question 4. What was the break in time (as shown by the unconformity 1) between the formation of Layer R. and Layer P? million years Question 5. How much of a break in time (as shown by the unconformity 2) was there between the formation of Layer S and Layer P? million years