Most earthquakes and volcanoes occur in bands that are often along the boundaries between continents and oceans.
Explain the ocean floor configuration in terms of major and minor decisions with diagram.
Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 2 5 miles.
By the end of 1967 earth s surface had been mapped into a series of plates figure 10 16.
By the 1960s holmes idea began to gain more credibility as scientists increased their understanding of the ocean floor via mapping discovered its mid ocean ridges and learned more about its age.
A number of major features of the basins depart.
The plates edges can be drawn by connecting the dots that mark earthquakes epicenters.
The alvin and the trieste are two famous examples.
The development of submarine warfare druing world war ii created a pressing need to map the ocean floor.
An asymmetric pattern is observed in the orientation of minor fracture zones about the axis of the mid atlantic ridge at five sites where relatively detailed studies have been made between latitudes 22 n and 51 n.
The continental shelf the continental slope the continental rise the deep sea plain or the abyssal plain.
Earthquake epicenters outline the plates.
This actually led to research on the ocean floor that would help explain the movement of the continents.
The locations of mountain ranges deep ocean trenches ocean floor structures earthquakes and volcanoes occur in patterns.
In 1961 and 1962 scientists proposed the process of seafloor spreading caused by mantle convection to explain the movement of the earth s.
A small depression in the ocean floor.
Major ocean relief features four major divisions in the ocean relief are.
The ocean floor is literally the floor of the ocean.
Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earth s surface.
Major mountain chains form inside continents or near their edges.
Mid ocean ridges trenches and large faults mark the edges of the plates and this is where earthquakes occur figure 1.
The lithosphere is divided into a dozen major and several minor plates figure 2.
Ocean relief ocean relief is largely due to tectonic volcanic erosional and depositional processes and their interactions.
Bathyscaphe a relatively small maneuverable submersible vessel specially constructed to withstand enormous pressure and used to explore the deep ocean floor.
Studies of living things.
Ocean relief features are divided into major and minor relief features.
The major plates are eurasia pacific india australia north america south america africa and antarctic.
What tool was used to do this mapping.
Continental drift and sea floor spreading became widely accepted around 1965 as more and more geologists started thinking in these terms.
