Abstract
A 2,500-km2 area of sea floor on the south-eastern flank of the Greater Antilles Outer Ridge north of the Puerto Rico Trench displays anomalously high acoustic backscattering properties on GLORIA longrange sidescan-sonar data. Previously collected dredges, bottom photographs, and sediment cores indicate the presence of Fe−Mn nodules within the area of high backscatter. We were able to map the extent of the inferred nodule field on the basis of acoustic property contrast between the nodule-covered sediment and the surrounding nodule-free sediment.
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Scanlon, K.M., Masson, D.G. Fe−Mn nodule field indicated by GLORIA, north of the Puerto Rico Trench. Geo-Marine Letters 12, 208–213 (1992). https://doi.org/10.1007/BF02091840
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DOI: https://doi.org/10.1007/BF02091840