Move your mouse over one of the geologist’s hammers. This was the last layer to be formed before the rocks tilted.
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.
For a fossil to be a good index fossil, it needs to have lived during one specific time period, be easy to identify and have been abundant and found in many places. If you find ammonites in a rock in the South Island and also in a rock in the North Island, you can say that both rocks are Mesozoic.
This interactive asks you to use your knowledge of relative dating. Help us work out the relative ages of the layers of sedimentary rocks.
As the layers build up, they cement together to form sedimentary rocks.
This has also helped them to know how old the earth is. This simply means that sediments are usually deposited in horizontal layers.
Many of these organisms have left their remains as fossils in sedimentary rocks.
Formation of an Unconformity Layers are formed according to superposition.
A VSVS member should pass out the stratigraphy laws worksheet to the.
Axiom that forms one bases sciences geology, archaeology, other fields dealing with geological stratigraphy 00 13.
Rock Activity" /Edible Rock Activity Plus, get practice tests, quizzes, and personalized coaching to help you succeed.
Understand what layers of rock are older or younger in a given stratigraphic.