... was used for the shear strength determination. The undrained shear strength was measured onboard immediately using a laboratory vane shear apparatus (AIMIL, New Delhi) keepipg rotation rate of 90o/minute. Vanes of 2.54 cm height and 1.2 cm diameter were used for all the measurements. The readings were...

... with nylon net. The gravity, magnetics and multibeam sonar (Hydrosweep) baseline data were simultaneously collected. mining system composition new delhi polymetallic nodule nodule central indian ocean basin karisiddaiah nodule size abundance valsangkar chemical composition basin...