Deeper Regions Of The Ocean Floor Tend To Be Younger

Youngest oceanic crust is near the ridges.

Deeper regions of the ocean floor tend to be younger.

Oceanic crust the outermost layer of earth s lithosphere that is found under the oceans and formed at spreading centres on oceanic ridges which occur at divergent plate boundaries. Life may have originated at mid ocean ridges 3. This material comes from several different sources and is highly variable in composition depending on proximity to a continent water depth ocean currents biological activity and climate. Plankton is found distributed throughout the world s oceans and is a vital ingredient in the success of many marine animals.

In tropical regions ocean islands tend to be surrounded by carbonate reefs. The oldest sediments are comparatively young because. Most of the volcanic eruptions and earthquakes occur along the mid ocean ridges. Massive sulfide mineral deposits are common along the mid ocean ridges 4.

The pacific is larger than the atlantic because it contains older oceanic floor c. Deeper regions of the ocean floor tend to be younger b. A the rocks of the underlying ocean floor react chemically with the lowest sediments converting them directly into rock b the ocean floor is recycled through plate tectonics dragging the oldest sediments into the mantle at subduction zones. Smaller aquatic animals tend to live in the shallower regions and the larger animals live in the deeper regions generally along the continental shelves beneath the waves.

1 basaltic rock is found to be progressively younger at increasing distances from a mid ocean ridge 2 marine fossils are often found in deep well drill cores 3 the present continents appear to fit together as pieces of a larger land mass 4 areas of shallow water seas tend to accumulate sediment which gradually sinks also please help me with. Almost all of the sea floor is covered by young sediments and sedimentary rocks derived either from erosion of continents or from marine biological processes. A deeper regions of the ocean floor tend to be younger. More than half of the earth s surface formed at a mid ocean ridge 2.

The ocean floor sediments near the surface remain unconsolidated. It is composed of several layers not including the overlying sediment. C the oldest oceanic crust is present only near trenches. Oceanic crust is about 6 km 4 miles thick.

Which evidence supports the theory of seafloor. Oldest oceanic crust is only present near trenches d. Scentists discovered that seafloor is relatively young because there is no sediments that are older than 150 million years were discovered. Except within a few kilometers of a ridge crest where the volcanic rock is still relatively young most parts of the sea floor are covered in sediments.