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Uploaded on Mar 9, 2008
Oceanic Geology -- Lesson 6 - 2 of 7 •Sediments are accumulated from surface deposited over time •Organisms living in the ocean contribute to the sediments and the Ooze •Echo sounder -- bouncing sound waves off the sea floor a depth is attained •Hidden landscape of the ocean •Continental shelf 200KM off shore 200M deep part of landmass •Continental slope •Coring technology developed to explore the canyons of the sea bed. •25M long core tube •Underwater avalanches or currents -- turbidity currents •Nov 18 1921 Newfoundland -- 13 underwater cable breaks •Bruce Heezen explaining reason for cable breakage