What radiometric dating technique is used to date volcanic rock Free only 1 on 1 sex web cam
We can crush the rock and measure its chemical composition and the radioactive elements it contains.
But we do not have an instrument that directly measures age.
And then, depending on the assumptions we make, we can obtain any date we like.
For example, a geologist may examine a cutting where the rocks appear as shown in Figure 1.
Here he can see that some curved sedimentary rocks have been cut vertically by a sheet of volcanic rock called a dyke.