1.Bathymetry has changed over the years. Sequence bathymetry from its early days-to-today.
April 1914, Reginald A Fessenden, developed the Iceberg Dectecfor and Echo Depth Suinder.
June 1922 an echo sounder made the first profile across the ocean.
1925-1927 meteor (German Researcher) made 14 profiles across the Atlantic Ocean Flur came about by 1959.
Now: Multibeam echo sounder systems to study the features of the ocean floors.
2.Where on earth earth would be able to locate
a. an active margin
b.a passive margin
a. Active margins are active, along the pacific coast
b.Passive continental margins are found along the coastlines.
3.Continental margins are divided into 3 sections, List and briefly describe all 3 types.
-Bathymetric studies were by Posidonlys in 85 b.c
The Continental Shelf- Shallow,tons of meters deep in the ocean, extends outward to the continental slope.
The Continental Slope- Connects the continental and oceanic crust, it begins at the bottom of a steep slope. Begins at 430 ft. depth and up to 20 km miles.
The Continental Rise-Currents from along the continental shelf and continental slope;they pick up and carry sediments along and deposit them below the slope. These sediments gather to form large, gentle slope of the continental rise.
