Cross-Section of the Atlantic Basin at Latitude 12 N extending from Sierra Leone to Barbados. This profile was made as a result of sounding taken on the School-Ship MERCURY, a vessel for training orphan boys and delinquent boys in nautical and oceanographic science. The sounding at 45 W indicated the southern extension of the Mid-Atlantic Ridge from the Azores.
Photo Date: 1871
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| Added On | 18th October 2015 |
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