Questions and Answers
What is the deepest part of the ocean?
What is the deepest known point in the sea?
The Challenger Deep
What is sonar mapping?
Ships bounce sound waves off the ocean floor to calculate the depth.
Where is the Mariana Trench located?
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What is a convergent boundary?
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What is a divergent boundary?
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What is a transform boundary?
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What is the Mariana Island Arc?
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Study Notes
Mariana Trench
- Deepest part of the ocean, known for extreme pressure and unique ecosystems.
- Unique geological structure formed by tectonic activity.
The Challenger Deep
- The deepest known point in the sea, reaching depths of approximately 36,070 feet (10,994 meters).
- Located within the Mariana Trench and explored by various submersibles.
Sonar Mapping
- Technique used to determine ocean depth by bouncing sound waves off the ocean floor.
- The delay between sending sound waves and receiving the echo indicates the distance to the seabed.
Location of Mariana Trench
- Positioned in the western Pacific Ocean, beneath Japan, above New Guinea, and to the east of the Philippines.
- Defines a significant geological feature that affects local tectonics.
Convergent Boundary
- A type of tectonic plate boundary characterized by two plates moving toward each other.
- Associated with subduction zones where oceanic plates sink beneath continental plates.
Divergent Boundary
- Tectonic plate boundary where two plates move away from each other.
- Usually associated with the formation of new oceanic crust, often seen at mid-ocean ridges.
Transform Boundary
- Characterized by two tectonic plates sliding past one another.
- Known for causing seismic activity, as stress builds up and is released during earthquakes.
Mariana Island Arc
- A result of volcanic activity related to the subduction processes in the Mariana Trench.
- Includes a chain of volcanic islands and underwater volcanoes, significantly impacting regional geology.
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Description
Explore the fascinating depths of the ocean with these flashcards focusing on the Mariana Trench and its notable features. Learn about the Challenger Deep, sonar mapping, and the location of these underwater marvels. Perfect for anyone interested in marine geography and oceanography.
