WorksheetsFossil Dating
Total questions: 15
Worksheet time: 13mins
The use of a fossil found in a rock to indicate the age of this rock is known as:
Relative Dating
Correlation
Radiometric Dating
Absolute Dating
What is not a quality of an index fossil?
Distinctive
Abundant with wide geological distribution
Limited live existence
Contains no hard parts
What is the Principle of Fossil Succession (Superposition)?
New strata are always deposited on top of existing strata
Layers of sediment initially extend laterally in all directions and will be the same age over a valley
The geologic feature which cuts another is the younger of the two features
Any rock fragments that are included in rock must be older than the rock in which they are included
How many years is Carbon Dating restricted?
50 thousand years
5 million years
5730 years
10 thousand years
What is the Principle of Lateral Continuity?
New strata are always deposited on top of existing strata
Layers of sediment initially extend laterally in all directions and will be the same age over a valley
The geologic feature which cuts another is the younger of the two features
Any rock fragments that are included in rock must be older than the rock in which they are included
What is Radiometric Dating?
Arrangement of geological events and rocks left behind in a sequence
Materials found on the rock surface that indicate its age
Observation of strata to comparatively determine their age
Technique used to numerically determine the approximate age of fossils or rocks
What is the Principle of Cross-Cutting Relationships?
New strata are always deposited on top of existing strata
Layers of sediment initially extend laterally in all directions and will be the same age over a valley
The geologic feature which cuts another is the younger of the two features
Any rock fragments that are included in rock must be older than the rock in which they are included
What are times on the geological timeline?
Eon, Era, Period, Epoch
Era, Generation, Period, Age
Age, Era, Phase, Eon
Integer, Epoch, Eon, Period
What is the Principle of Inclusions?
New strata are always deposited on top of existing strata
Layers of sediment initially extend laterally in all directions and will be the same age over a valley
The geologic feature which cuts another is the younger of the two features
Any rock fragments that are included in rock must be older than the rock in which they are included
How many years is a half life of Carbon-14?
4730 years
5250 years
5730 years
5649 years
What is Relative Dating?
An invasive method used to determine the age of a fossil or rock
Analysis of the rate of disintegration of radioactive elements in a fossil, mineral or rock
Observation of the arrangement of strata to comparatively determine their age
Technique used to numerically determine the approximate age of fossils or rocks
What are examples of index fossils?
Trilobite
Ammonite
Lingula
Gastropod
Select the layers of the same age.
1 & C
3 & D
2 & B
5 & A
How can fossil and rock dating be used to support the development of the geological timeline? (3 marks)
What is an index fossil, and what is it used for? (3 marks)
