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Flashcards in Ocean Floor Deck (21):
1

Sediments separating continental slope from the ocean floor

Continental rise

2

Deep V- shaped valleys cut through continental shelf and continental slope

Submarine canyon

3

Area where continent's underwater edge meets the ocean floor and consists of three parts; the shelf, the slope, and the rise

Continental margin

4

Water that carries large amounts of sediment

Turbidity currents

5

Boundary between continent's crust and ocean floor's crust

Continental slope

6

A description of the shape of the ocean floor - its characteristics and major features

Topography

7

The boundary where land meets the ocean

Shoreline

8

Small pieces of rocks and remains of plants and animals washed down from the continent

Sediments

9

Relatively flat part of the continental margin covered by shallow ocean water

Continental shelf

10

Flat large area on the ocean floor

Abyssal plains

11

Individual underwater mountains that rise up from the ocean floor and are characterized by steep sides and narrow tops ( summits)

Seamounts

12

Individual underwater mountains that rise up from the ocean floor, but are flat- topped and do not have summits

Guyots

13

Long narrow crevices found along the edge of the ocean floor

Trenches

14

Large, underwater mountain ranges formed by molten material deep within the Earth

Midocean ridges

15

Running along the middle and almost parallel to underwater mountain ranges are deep crevices about a mile wide

Rift valleys

16

Sometimes unusual- looking volcanic islands can be seen tropical waters near a continental shelf. Surrounding these islands offshore are are large masses masses of limestone rocks that contain the shells of animals. These structures can only be found in warm, tropical waters near the surface, because it needs light.

Reefs

17

Limestone structures that surround a tropical island, but is separated from the island by a lagoon

Barrier reefs

18

Limestone structures that surround a tropical island, that touch the islands shoreline

Fringing reefs

19

Limestone structures that surround what used to be a tropical island, but the island has since sunken or has been eroded away

Atoll

20

Resources that can be found in a continental shelf area

Large deposits of minerals

Oil

Natural gas

Many fish and seashells

21

Name given to currents that flow down a continental slope carrying sediments and remains of plants and animals

Turbidity currents