Sea level 0 meters is the line already shown on the graph.
Mapping the ocean floor atlantic profile.
On the mapping the ocean floor lab handout plot the distance from beach x axis vs.
Ocean depth y axis for the pacific profile graph.
Mapping the ocean floor now that you have all of your data you will plot these depths on a graph.
Ocean depth y axis for the atlantic profile graph.
Marie tharp july 30 1920 august 23 2006 was an american geologist and oceanographic cartographer who in partnership with bruce heezen created the first scientific map of the atlantic ocean floor tharp s work revealed the detailed topography and multi dimensional geographical landscape of the ocean bottom.
Examine the data in the table.
The numbers in the longitude column give the ship s location at 19 points in the atlantic ocean.
A marine gravity map of the north atlantic ocean red dots show locations of earthquakes with magnitude 5 5 and they highlight the present day location of the seafloor spreading ridges and.
Smoothly connect the points and you will have a cross sectional map of the south atlantic ocean floor.
The problem with that approach is that our oceans are vast and ships are small meaning only a tiny percentage of the ocean floor between 5 15 percent nasa estimates was mapped.
Her work also revealed the presence of a continuous rift valley along the axis.
Plate tectonics and the geology of the sea.
Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet.
Once the points are plotted connect the points and shade in the profile of the ocean floor.
The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
For this set of data the depth has already been calculated for you.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
The maps she produced in the 1950s would spark a debate and later the discovery of the mid atlantic ridge one of the key clues supporting the theory of continental drift.
Today google ocean features tharp s hand drawn work in the marie tharp historical map which reveals the once hidden ocean floor to a generation of web users.
Oceanography compound of the greek words ὠκεανός meaning ocean and γράφω meaning write also known as oceanology is the study of the physical and biological aspects of the ocean it is an important earth science which covers a wide range of topics including ecosystem dynamics.
Ocean currents waves and geophysical fluid dynamics.
