An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are k...
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http://en.wikipedia.org/wiki/Abyssal_plain
Flat or very gently sloping areas of the deep ocean basin floor.
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http://en.wikipedia.org/wiki/Glossary_of_geology
flat seafloor area at an abyssal depth (3,000 to 6,000 m [10,000 to 20,000 feet]), generally adjacent to a continent. These submarine surfaces vary ... [4 related articles]
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http://www.britannica.com/eb/a-z/a/9
Another name for ocean floor.
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http://www.physicalgeography.net/physgeoglos/a.html
Abyssal plains are broad expanses of sea floor lying between three and six kilometres below sea level. Abyssal plains are found in all the major oceans, and they extend from bordering continental rises to mid-oceanic ridges. Underlain by outward-spreading, new oceanic crust extruded from ridges,
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The ocean floor offshore from the continental margin, usually very flat with a slight slope.
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http://www.scientificpsychic.com/etc/geology-glossary.html
The deep ocean floor, an expanse of low relief at depths of 4,000 to 6,000 m
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https://www.encyclo.co.uk/local/20125
Broad, relatively flat expanse of sea floor lying 3–6 km/2–4 mi below sea level. Abyssal plains are found in all the major oceans, and they extend from bordering continental rises to mid-oceanic ridges. Abyssal plains are covered in a thick layer of sediment, and their flatness is punctuated by rugged low abyssal hills and high se...
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https://www.encyclo.co.uk/local/21221
Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.
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https://www.encyclo.co.uk/local/22327
deep ocean floor (usually 2 to 6km deep), generally flat apart from occasional volcanic mountains and mid-ocean ridges.
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https://www.geolsoc.org.uk/ks3/gsl/education/resources/rockcycle/page3451.h
No exact match found.
