Scince pictures of relative dating
Therefore, the igneous intrusion may be below a layer that is older than it.
The USGS has a good introduction of Relative Dating to have you practice putting historical events in the correct order.
Below each picture, choose the process that is taking place in the box above.
(Hint- For help numbering the boxes, refer back to the last three paragraphs.) Write the term that describes the event that happened in the space below the drawing.
Information about one of the rock layers will appear – drag the hammer and drop it onto the layer you think is being described. This layer formed on top of earlier rocks after they were tilted and eroded away.
Carry on and place all the hammers on the correct layers.
Where are the oldest pictures, by year, going to be in your stack? Often igneous intrusions will cut across layers of rock.