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![Spectacular cross-section of the Mid-Atlantic Ridge clearly showing medianvalley obtained as the result of soundings taken on the German research vesselMETEOR map00113.jpg Spectacular cross-section of the Mid-Atlantic Ridge clearly showing medianvalley obtained as the result of soundings taken on the German research vesselMETEOR](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_map00113.jpg?itok=2d0mp65j)
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Spectacular cross-section of the Mid-Atlantic Ridge clearly showing medianvalley obtained as the result of soundings taken on the German research vesselMETEOR. This profile and the accompanying paper by Gunter Dietrich clearlyestablishes Dietrich as the first to recognize the continuity of the medianvalley of the Mid-Atlantic Ridge. 1938 original publication. (Image credit: NOAA Central Library Historical Collection)