What is the topography of the ocean floor?
Topography of the Oceanic Basins: The ocean floor lies beyond the base of the continental rise, in waters 4000 to 6000 meters deep. The ocean floor accounts for nearly 30% of the Earth’s surface, and is made up of a relatively thin layer (on average 5 km) of basaltic rock with an average density of 3.0 grams per cc.
How does the topography of the ocean floor compare to that on land?
How does the topography of the ocean floor compare to that on land? The topography of the ocean floor is as diverse as that of continents. Three topographic features: mid-ocean ridges, trenches, abyssal plains.
What are the two main topography of the ocean floor?
What are two topographic features of the ocean floor? Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches.
Is topography measured above sea level?
Elevation is distance above sea level. Elevations are usually measured in meters or feet. Maps that show elevations are called topographic maps. Elevation influences climate, as well as where and how people live.
What are the three major topographic units of the ocean floor?
Physiography and bathymetry (submarine landscape) allow the sea floor to be subdivided into three distinct provinces: (1) continental margins, (2) deep ocean basins and (3) mid-oceanic ridges.
What does the topography of the bottom of the ocean indicate?
The shape of an ocean basin is defined by its bottom topography, including its intersection with the top surface, the coastline. Topography has a profound influence on the direction of currents, especially near the bottom.
What is the most important topographic feature of the ocean floor?
The main features of the Pacific Ocean floor are the continental slopes, which drop from about 200 m to several thousand metres over a distance of a few hundred kilometres; the abyssal plains — exceedingly flat and from 4,000 m to 6,000 m deep; volcanic seamounts and islands; and trenches at subduction zones that are …
Which place has the highest elevation above sea level?
Mount Everest’s peak is the highest altitude above mean sea level at 29,029 feet [8,848 meters]. Mount Chimborazo’s peak is the furthest point on Earth from Earth’s center.
What is the difference between elevation and altitude?
While all three words mean “vertical distance either between the top and bottom of something or between a base and something above it,” altitude and elevation apply to height as measured by angular measurement or atmospheric pressure; altitude is preferable when referring to vertical distance above the surface of the …
What method is used most frequently to investigate sediment and rock layers of the sea floor?
The method that used most frequently to investigate sediment and rock layers of the sea floor is: sound waves (specifically seismic reflecting profiling). Satellites measurements of the ocean surface can be used to make maps of the seafloor.
What is a Biogenous sediment?
Biogenous Sediment. Biogenous sediments (bio = life, generare = to produce) are sediments made from the skeletal remains of once-living organisms. These hard parts include a wide variety of particles such as shells of microscopic organisms (called tests), coral fragments, sea urchin spines, and pieces of mollusc shells …