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Graph a cross section of a mid-ocean ridge that is spreading symmetrically in both directions at a rate of 1 cm/yr (10 km/ million yr). The age of the oldest seafloor shown should be 80 million years.

Graph a cross section of a mid-ocean ridge that is spreading symmetrically in both directions at a rate of 1 cm/yr (10 km/ million yr). The age of the oldest seafloor shown should be 80 million years.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Critical-Thinking Problems 1. We have seen that cooling of the oceanic lithosphere causes contraction, leading to subsidence of the seafloor away from the axis of spreading. The depth d of the ocean floor, meas- ured in meters, increases with age t, measured in millions of years from the present, according to the following equation (valid for seafloor younger than 80 million years old): d = 2500 + 350 Vt Graph a cross section of a mid-ocean ridge that is spreading symmetrically in both directions at a rate of 1 cm/yr (10 km/ million yr). The age of the oldest seafloor shown should be 80 million years.
Transcribed Image Text:Critical-Thinking Problems 1. We have seen that cooling of the oceanic lithosphere causes contraction, leading to subsidence of the seafloor away from the axis of spreading. The depth d of the ocean floor, meas- ured in meters, increases with age t, measured in millions of years from the present, according to the following equation (valid for seafloor younger than 80 million years old): d = 2500 + 350 Vt Graph a cross section of a mid-ocean ridge that is spreading symmetrically in both directions at a rate of 1 cm/yr (10 km/ million yr). The age of the oldest seafloor shown should be 80 million years.
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