Question

geologists use _____ to determine a rock layer's absolute age?

Its a fill in the blank question and im not sure how to answer it...

Answer 1

Please Help!!

Answer 2

Relative Dating

Answer 3

I think it is actually carbon-dating, because relative only estimates it. With carbon dating you can get a pretty close to exact answer.

Answer 4

Well samstopp is correct.

Answer 5

When determining the rocks layers age, it helps for the calendar to be used, this is what i mean

Here is the link
http://geology.utah.gov/maps-publications/survey-notes/glad-you-asked/glad-you-asked-how-do-geologists-know-how-old-a-rock-is/