The Ocean Floor.

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Presentation transcript:

The Ocean Floor

The Ocean Floor Divided into two parts: Continental margin Deep Ocean Basin Continental crust comprises continental margin Deep ocean basin is comprised of oceanic crust

Continental Margin Continental Shelf Begins at shoreline and ends at the slope Depth can reach up to 200 M Continental Slope Begins at shelf and extends to ocean floor Ranges from 200 to 4,000 M

Deep-ocean Basin Abyssal Plain Broad flat portion of the ocean floor Average depth is 4,000 Deepest point in the ocean is the Mariana Trench located in the Pacific ocean: 11,033 meters Ridges and rift valleys formed at divergent boundaries Trenches formed at convergent boundaries

Features of the Ocean Floor

Features of the Ocean Floor A= Continental Slope B= Seamounts C= Abyssal Plain D= Mid-Ocean Ridge (Divergent) E= Volcanic Island F= Continental Shelf G= Deep Ocean trench (Convergent)

Mapping the ocean floor Mapping ocean floor