1. Hydrothermal activity and sulphide formation in axial valleys of the East Pacific Rise crest between 18 and 220 S;Bäcker;Earth. Planet. Sci. Lett.,1985
2. Detrital heavy minerals in natural accumulates;Baker,1962
3. Volcanic geology, hot springs and geysers of Iceland;Barth,1950
4. Placer minerals on the U.S. continental shelves - opportunity for development;Beauchamp,1983
5. Sea-floor massive sulfide deposits from 210 N; Juan de Fuca Ridge; and Galapagos Rift: bulk chemical composition and economic implications;Bischoff;Econ. Geol.,1983