Principle of Original
Cross cutting relationships
Law of cross-cutting relationships
Molds & casts
What type of rocks are most commonly studied by paleontologists?
How is an isotope used to determine absolute age?
What organism is most likely to become a fossil?
What characteristics are required for a fossil to be designated as an index fossil?
Describe how geologic time organized?
Law of Superposition
Compare & Contrast two periods of Earth’s history.
You are studying the element Bensonium. You have 500g of Bensonium, and it has a half-life of 10 years. How much Bensonium do you have after 100 years?
You have an an element Ramsium with a half-life of 1 million years. You start with a 1000g sample. How much do you have left after 10 million years?
*Identify the order that these layers formed in and identify the type of unconformity occurred in each picture
*Correlate all the layers shown in the stratigraphic sections