Geological Principles and Crater Counting

What does the principle of faunal succession help geologists to do?

• Understand the process of erosion

• Identify the types of rocks

• Map strata and predict fossil locations

• Determine the age of the Earth

Who discovered the principle of faunal succession?

• Albert Einstein

• William Smith

• Isaac Newton

• Charles Darwin

What is a dyke in geological terms?

• A type of sedimentary rock

• A type of volcanic eruption

• An intrusion that cuts across rock layers

• A fossilized plant

How can you tell that an intrusion is younger than the rock it penetrates?

• By its size

• By its position cutting through the rock

• By its mineral content

• By its color

What does the principle of inclusions indicate about the age of rocks?

• The inclusion is younger than the surrounding rock

• The inclusion is older than the surrounding rock

• The inclusion and the rock are the same age

• The inclusion is irrelevant to the rock's age

What is a xenolith?

• A type of fossil

• A piece of mantle rock included in lava

• A sedimentary rock layer

• A volcanic eruption

What does the principle of cross-cutting relationships help determine?

• The mineral content of rocks

• The sequence of geological events

• The color of rocks

• The temperature of rock formation

How can crater counting be used to assess the age of a surface?

• By counting the number of craters

• By measuring the depth of craters

• By studying the temperature of craters

• By analyzing the color of craters

Why do craters last longer on the Moon than on Earth?

• The Moon has a thicker atmosphere

• The Moon has no geological activity

• The Moon is closer to the Sun

• The Moon has more water

Which celestial body is described as having the oldest surface in the solar system?

• Earth

• Mars

• Kalisto

• Venus