Mapping The Ocean Floor Graph Island Arc

Island arcs can either be active or inactive based on their seismicity and presence of volcanoes active arcs are ridges of recent volcanoes with an associated deep seismic zone.

Mapping the ocean floor graph island arc. Hr arctic expedition map. On the mapping the ocean floor lab handout plot the distance from beach x axis vs. Location map for the kermadec tonga arc showing the study areas covered by four cruises since 1999. You are charting a line from cape cod massachusetts on the north american.

Ocean depth y axis for the pacific profile graph. The research group will fly via chilean c 130 from punta arenas to king george island. Thunder bay map with side scan sonar tracklines. Mapping the ocean floor now that you have all of your data you will plot these depths on a graph.

Nearly 80 of the ocean floor has been accurately mapped using sonar from ships. Of the following statements about mapping the ocean floor which is are true. The island of java is an example of a volcanic island associated with volcanic activity at a. Smoothly connect the points and you will have a cross sectional map of the south atlantic ocean floor.

Esri s gis mapping software is the most powerful mapping spatial analytics technology available. The numbers in the longitude column give the ship s location at 19 points in the atlantic ocean. Label the following ocean. A method of mapping the topography of the ocean floor along a strip up to 60 km wide.

Far right mapping a section of the ocean floor. The ship is equipped with high tech depth sounding equipment. 16 1 and 16 2 b is a back arc basin. For this set of data the depth has already been calculated for you.

You are a research vessel with the purpose of mapping the topography of the ocean floor across the atlantic ocean. Satellites can be used to determine the structure and composition of the sea floor. To the east of the island arc the 4000 m deep andaman sea figs. Once the points are plotted connect the points and shade in the profile of the ocean floor.

They also possess a distinct curved form a chain of active or recently extinct volcanoes a deep sea trench and a large negative bouguer anomaly on the convex side of the volcanic arc. 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. Only about 20 of the sea floor has been accurately mapped in detail. To plot the profile of the ocean floor and identify its topographical features.