Relative dating of rock

27-Dec-2016 02:59

The Wheeler Formation has been previously dated to approximately 507 million year old, so we know the trilobite is also about 507 million years old.

But, how can we determine how old a rock formation is, if it hasn’t previously been dated?

In this activity, students begin a sequencing activity with familiar items — letters written on cards.

Once they are able to manipulate the cards into the correct sequence, they are asked to do a similar sequencing activity using fossil pictures printed on "rock layer" cards.

PALEONTOLOGY, AND in particular the study of dinosaurs, is an exciting topic to people of all ages.

Although most attention in today's world focuses on dinosaurs and why they became extinct, the world of paleontology includes many other interesting organisms which tell us about Earth's past history.

Using relative dating the fossil is compared to something for which an age is already known.

For example if you have a fossil trilobite and it was found in the Wheeler Formation.

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The Grand Canyon acts as a modern testament to stratigraphy and relative dating.

Geology, or the study of rocks, can be a fascinating way to learn about the Earth's history.

Relative dating is a key component to unlocking the mysteries of the Earth's past.

Scientists can use certain types of fossils referred to as index fossils to assist in relative dating via correlation.

Index fossils are fossils that are known to only occur within a very specific age range.

The Grand Canyon acts as a modern testament to stratigraphy and relative dating.

Geology, or the study of rocks, can be a fascinating way to learn about the Earth's history.

Relative dating is a key component to unlocking the mysteries of the Earth's past.

Scientists can use certain types of fossils referred to as index fossils to assist in relative dating via correlation.

Index fossils are fossils that are known to only occur within a very specific age range.

Time factors of millions and billions of years is difficult even for adults to comprehend.