12 Questions
What process forms trenches in the oceanic crust?
Subduction
Where is the Mariana Trench located?
Pacific Ocean
What is the role of underwater robots called submersibles in oceanic crust exploration?
Collect information for research and exploration
How is oceanic crust formed?
At the mid-ocean ridges
What is the average thickness of the oceanic crust?
5-7.5 kilometers
Which type of rocks are found in the oceanic crust?
Basalt and gabbro
What is the primary composition of the rocks in the oceanic crust known as Sima?
Silicate and magnesium
Where are Shields typically found within the continental crust?
On the surface with no overlying sediments
What is the age range of the oceanic crust mentioned in the text?
200 million years old
Where is the oceanic crust mainly formed according to the text?
Mid-ocean ridges
What are the main types of rocks that make up the oceanic crust in the text?
Basalt and gabbro
Which process is responsible for the formation of the Earth's brittle and thin crust according to the text?
Incompatible elements process
Explore the process of how the oceanic crust is formed at mid-ocean ridges, sinks into the mantle, and rises again as magma at the ridges. Understand the cycle of creation and destruction of oceanic crust.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
