Relative dating gives the ages of rocks relative to the ages of other rocks (e.g
ID: 232886 • Letter: R
Question
Relative dating gives the ages of rocks relative to the ages of other rocks (e.g., This rock is older than that rock or fossil.). In undeformed sedimentary rocks, the oldest rock layer is found on the bottom, and the youngest rock layer is found on the top. The figure to the right is a cross section through sedimentary rock layers. Which layer is the oldest? E A B C D E How old (relative to the other layers) is the dinosaur bone? To the right is a cross section through sedimentary and volcanic rock layers. Sedimentary Rock Layer B contains a dinosaur bone. Which two of the absolute age dating methods would you use to determine the age of volcanic Rock Layers A and C? How could you determine the age of the dinosaur bone? If volcanic Rock Layer A is determined to be 90 Ma, and volcanic Rock Layer C is determined to be 80 Ma, what is the age of the dinosaur bone? Two students are debating the age of the dinosaur bone. Student 1; The bone is between 80 and 90 million years old. You can't be more specific because you can't determine how fast the layers were deposited. Student 2: I think the dinosaur lived 85 million years ago because the bone is exactly in the middle of the two volcanic layers. With which student do you agree? Why?Explanation / Answer
3) The layer which is at the bottom ,i.e : layer A will be the oldest layer.
4) The dinosaur bone is in the layer B which is the second layer from the bottom.
So it is the second oldest aged when compared to the other layers.