Could someone help me with this questions please.. Thanks..
A geologist finds a fossil in a rock layer. The fossil has been dated and the approximate age of the fossil has been placed at 10,000 years old. What can the geologist assume about the rock layer based on this data and what principle supports this assumption?
2007-02-14 07:29:42 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
that, that rock layer was the suface layer 10,000 years ago
2007-02-14 07:35:14 · answer #1 · answered by BajaRick 5 · 0⤊ 0⤋
That the rock layer is 10,000 years old, or younger. The fossil doesn't necessarily give the age of the rock layer--it may have been eroded out of an older formation and re-deposited and lithified into it's current formation.
This would be the Principle of Inclusions and Components.
However, if the fossil is in situ, then it may accurately represent the age of the rock.
2007-02-14 10:57:29 · answer #2 · answered by kiddo 4 · 0⤊ 0⤋
The rock layer would be 10,000 years old as well. This is true because of fossil correlation, meaning the fossil is used to date the rock in which it lies.
2007-02-14 08:52:39 · answer #3 · answered by Lexy 3 · 0⤊ 0⤋
The farther down you go, the older the fossils. This is because ground builds up. It starts with the older fossils. Then over time more dirt is spread ovet those fossils and new fossils are layed. Layerong the fossils for youngest, at the top, to oldest, at the bottom. Although seeing form where the questo states "Using the geologic principles discussed in this lesson", you should probably know that.
2016-05-23 23:11:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋