Absolute Dating
Relative Dating
Grab Bag
Dating Problems
Picture This
100
The unstable radioactive elements found in rock or fossils
WHAT ARE PARENT ISOTOPES?
100
Dating rocks and events based upon other rocks and events
WHAT IS RELATIVE DATING?
100
This is an area where there is a missing layer
WHAT IS AN UNCONFORMITY?
100
A sample of wood found in an ancient tomb contains 1/4 of its original Carbon-14. The number of the half-life of this wood would be this
WHAT IS A 2ND HALF-LIFE?
100
The feature at letter F. It's not your...
WHAT IS A FAULT?
200
The process used to determine the precise age of rocks and fossils
WHAT IS ABSOLUTE DATING?
200
This law states that the rocks on the bottom are older and the rocks on the top are younger
WHAT IS THE LAW OF SUPERPOSITION?
200
This IDEAL representation of all layers on Earth is pieced together like.a puzzle
WHAT IS THE GEOLOGIC COLUMN?
200
Rock samples with more of this are older than ones with less
WHAT IS DAUGHTER MATERIAL?
200
The squiggly line at letter C represents this geologic process that wears away.
WHAT IS EROSION?
300
Process that occurs when the parent isotope (radioactive) decays into a daughter isotope (no longer radioactive)
What is radioactive decay?
300
The law that states that all sediment begins in this level position
WHAT IS THE LAW OF HORIZONTALITY?
300
The idea that the geologic processes we see today have been at work for millions of years
WHAT IS UNIFORMITARIANISM?
300
The half-life of a radioactive element is 10,000 years. This is the age of the rock containing this element after its 3rd half-life
WHAT IS 30,000 YEARS OLD?
300
This is the youngest layer in the diagram and is not the grade you want on the quiz
WHAT IS F?
400
The time it takes for half the atoms in a sample to change from a radioactive isotope to a stable isotope
WHAT IS A HALF -LIFE?
400
In this picture, the black rock melted its way through the layers of sediment creating this cross-cut
WHAT IS AN INTRUSION?
400
An unconformity can form by these two ways
WHAT IS EROSION AND NONDEPOSITION?
400
A sample was taken from Otzi and it was found that the fossil contains 50% of Carbon-14 parent material. Based on this information Otzi's approximate age is this.
WHAT IS 5,730 years old ?
400
In this diagram, A is an example of this type of cross-cutting.
WHAT IS AN INTRUSION?
500
This isotope is only used to date matter that was once living, such as Otzi
WHAT IS CARBON -14?
500
Some in the black rock was not melted by the intrusion so therefore it is older than the intrusion according to this strategraphic principle
WHAT IS AN INCLUSION?
500
This type of rock forms when magma hardens into solid rock.
WHAT IS IGNEOUS ROCK?
500
Rock A contains 100g of Parent material
Rock B, same element, contains 50g Parent material.
This is the amount of daughter material in Rock B
DAILY DOUBLE
WHAT IS 50g?
DAILY DOUBLE
What half-life is Rock B?
500
This geologic process occurred first.
Intrusion G or Fault A
WHAT IS FAULT A?