Cratons Quiz

What are cratons?

• Small, stable blocks of the Earth's oceanic crust.

• Massive, unstable blocks of the Earth's continental crust.

• Small, unstable blocks of the Earth's continental crust.

• Large, stable blocks of the Earth's continental crust

How are cratons formed?

• Cratons are formed by erosion and weathering.

• Cratons are formed through the process of cratonization.

• Cratons are formed through volcanic activity.

• Cratons are formed by tectonic plate collisions.

What is the composition of cratons?

• Basalt and schist.

• Sandstone and limestone.

• Granite and gneiss

• Marble and quartzite.

What is the tectonic history of cratons?

• The tectonic history of cratons involves the formation and assembly of continents through various geological processes such as accretion, collision, and rifting.

• The tectonic history of cratons is unrelated to the formation of continents.

• The tectonic history of cratons is characterized by the erosion and weathering of rock formations.

• The tectonic history of cratons is primarily influenced by volcanic activity.

What factors contribute to craton stability?

• Thickness and composition of the lithosphere, presence of tectonic activity, and absence of a stable oceanic shield.

• Thickness and composition of the lithosphere, absence of tectonic activity, and presence of a stable continental shield.

• Thickness and composition of the asthenosphere, presence of tectonic activity, and absence of a stable continental shield.

• Thinness and composition of the lithosphere, presence of tectonic activity, and absence of a stable continental shield.

True or False: Cratons are the oldest and most stable parts of the Earth's continental lithosphere.

• False.

• Cratons are the youngest parts of the Earth's continental lithosphere.

• Cratons are found in the oceanic lithosphere.

• True

Which process is responsible for the formation of cratons?

• tectonic plate movement

• cratonization

• erosion

• volcanic activity

What are the main components of cratons?

• Volcanic rocks, unstable continental crust, and a thin lithosphere.

• Ancient rocks, stable continental crust, and a thick lithosphere.

• Sedimentary rocks, oceanic crust, and a thin lithosphere.

• Metamorphic rocks, unstable continental crust, and a thick lithosphere.

True or False: Cratons have undergone significant tectonic activity throughout their history.

• False

• Not enough information to determine

• Partially true

• True

What are some of the factors that can destabilize a craton?

• Volcanic activity, weathering, and seismic waves.

• Sedimentation, plate tectonics, and volcanic eruptions.

• Mountain building, glaciation, and crustal uplift.

• Tectonic activity, erosion, and weak zones or faults