Oceans Flashcards
(25 cards)
What is a continental rise
A continental rise is sediment separating continental slope from the ocean floor
What is a submarine canyon
DV shaped valleys Cutthrough continental shelf and Continental slope
What is the continental margin
Area where continents underwater and meets the ocean floor, and consists of three parts; the shelf, the slope in the rise
What is turbidity currents
Water that carries a large amounts of sediment
What is the continental slope
Boundary between continents crust and ocean floors crust
Topography
A description of the shape of the ocean floor-its characteristics and major features
What is it Shoreline
The boundary where land meets the ocean
what is sediment
Small pieces of rocks and the remains of plants and animals wash down from the continent
What is abyssal plains
A large flat area of land on the ocean floor
What is seamounts
Individual underwater mountain that rise up from the ocean floor and I characterized by steep sides and narrow tops “summits “
What is guyots
Individual underwater mountain that rise up from the ocean floor, but our flat -top and do not have summits
What are trenches
Long narrow crevices found along the edge of the ocean floor
What are mid ocean ridges
Large, underwater mountain ranges for my molten material deep within the earth
What are reefs
Sometimes unusual looking volcanic islands can be seen in tropical waters near the continental shelf. Surrounding these islands offshore are large masses of limestone rocks that contain the show is of animals. The structures can only be found in a warm, tropical waters, near the service, because it needs light
What are barrier reefs
Limestone structure that surrounds a tropical island, but separated from the island by a Lagoon
Fringing reefs
Limestone structures that surround a tropical island, that touch the islands Shoreline
What is a atoll
Limestone structures that surround what used to be a tropical island, but the island has since sunken or has been eroded away
What are Rift Valleys
Running along the middle and almost parallel to underwater mountain ranges are indeed crevices, about a mile wide
What is the continental shelf
Relatively flat part of the continental margin covered by shallow ocean water
Describe the continental margin
The margin is an area where the underwater edge of a continent meet Seo. It generally consists of three parts. A continental shelf, a continental slope, and a continental rise
Is a continental margin best described as a land feature earn ocean feature
Hey continental margin is best described as a land feature
Describe a continental shelf
Hey continental shelf is a relatively flat part of a continental margin. Is covered by shallow ocean water. It’s looks down word from the shoreline. Slopes less than 1.2 m for every hundred meters from the shoreline
What kind of resources can be found in a continental shelf area
Resources can be found in the continental shelf area our fish, natural gas, oil, and minerals
At the edge of the continental shelf, the ocean floor plunges. What is this feature of an ocean called?
This feature of an ocean is called a continental slope
