Volcanoes
The substance ejected from volcanoes and other volcanic activity. Molten rock
What is Lava?
The densest layer of Earth, composed of iron and nickel
What is the Inner Core?
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Created the Mid-Atlantic Ridge
What is a Divergent Boundary?
Underwater mountain range formed at a divergent boundary
What is a Midocean Ridge?
The study of Earth's oceans and features
What is Oceanography?
Semi-molten rock found beneath the Earth's surface
What is Magma?
The largest layer of Earth, which drives volcanism and plate tectonics
What is the Mantle?
The scientist who first proposed the theory of Continental Drift
Who is Alfred Wegener?
Where terrestrial land meets water
What is a shoreline?
A breathing apparatus created by Jacques Cousteau in the 1940's
What is Scuba?
Volcanic Islands, like Hawaii, form when this passes under Earth's crust
What is a Hot Spot?
This layer of Earth does not enable S-Waves to pass through it. It also creates Earth's electromagnetic field
What is the Outer Core?
Ancient supercontinent from 250 million years ago
What is Pangea?
The deepest parts of the oceans, formed by convergent boundaries
What is a Trench?
Also known as a Black Smoker, these enable benthic organisms to survive via Chemosynthesis.
What is a Hydrothermal Vent?
This type of lava forms a brittle, rocky crust, flows slowly, and is found in Hawaii
What is Aa Lava?
A plasticized layer of the mantle that continents move and rest upon
What is the Asthenosphere?
Aka "slip-strike" boundary
What is a Transform Boundary?
The "bottom" of most of the ocean, lying at 3 to 6 kilometres
What is the Abyssal Plain?
The deepest part of the ocean's layers, only containing trenches. The "underworld" of the ocean
What is the Hadal Zone?
Though Earth has active volcanoes, the tallest peak and volcano in the solar system, Olympus Mons, rises 3 times higher than Mt. Everest, and is found on this planet
What is Mars?
Composed of dense, basaltic rocks. Always submerged at convergent boundaries
What is Oceanic Crust?
Crust fragment separate from it's continent with its own geological history and composition
What is a Terrane?
The final step in a coral reef's life, leaving a lagoon in the center
What is an Atoll?
What is Cosmogenous?