Application of X-Ray Transmission Sensor-Based Sorting for Preconcentration of Seafloor Massive Sulphide Rock Samples from the Loki’s Castle Area at the Arctic Mid-Ocean Ridge - Kowalczuk, Przemyslaw B.; Hahn, Klaus Matthias; Lennartz, Jutta; Snook, Ben; Wotruba, Hermann; Aasly, Kurt; Kleiv, Rolf Arne (2018)