The process of measuring the depths is known as bathymetry.
Physical layout of the ocean floor.
Despite what early explorers thought, the world is definitely not flat!
Beyond this slope is the abyssal plain a smooth and nearly flat area of the ocean floor.
Like dry land, the ocean floor has various features including flat plains, sharp mountains, and rugged canyons (fig.
3) why are the types of organisms that live at each underwater hot vent so dramatically different ?
To map the ocean floor we need to know the depth at a number of places.
It covers most of the ocean floor.
Students imagine what it might be like from the edge of a continent down to the deepest part of the ocean.
The total length of the submarine ridges is more than 75,000 km.
18.1 the topography of the sea floor we examined the topography of the sea floor from the perspective of plate tectonics in chapter 10, but here we are going to take another look at the important features from an oceanographic perspective.
Sonar is also known as echo sounding.
O give students an unlabeled ocean‐floor diagram, and have them label all characteristic areas.
These measurements were first made through soundings , where a weighted line (lead line) was let out by hand until it touched the bottom, and the depth could be recorded from the length of the line (figure 1.4.1).
The features of the ocean floor include a continental shelf, continental slope, abyssal plain, trench, ocean basin, and ocean ridge.
Measuring the depth of the ocean to the.
They are longer than the longest mountain ranges on the continents.
Most oceans have almost similar structure, created by physical activities in the form of sediment carried from various sources or from movement of the tectonic plates.
The ocean floor/basins have four major divisions:
That debris from the continent settles.