The most important sustainability fact about bismuth is its byproduct status, which can either improve sustainability ( i . e ., vanadium or manganese nodules ) or, for bismuth from lead ore, constrain it; bismuth is constrained.
32.
Due to unusual features of the plateau, particularly scouring by the Florida Current and the Antilles Current that merge over the plateau to form the Gulf Stream, mineral deposits, particularly manganese nodules, have long been of interest.
33.
The recovery operation commenced covertly ( in international waters ) about six years later with the supposed commercial purpose of mining the sea floor for manganese nodules under the cover of Howard Hughes and " Hughes Glomar Explorer ".
34.
Unless the existence of significant oil is proven, he said, the Spratlys'and the entire south central region of the South China Sea can only be said to be rich in manganese nodules, deepwater minerals, tourism potential and fishing resources.
35.
If they do, they will have beat the odds that defeated previous miners who expected to get rich off deep-sea manganese nodules in the 1970s, or to exploit Antarctica for oil and minerals until a mining ban was adopted there.
36.
More recently, polymetallic sulfide deposits have been discovered and polymetallic sulfide " black muds " are being presently deposited from " black smokers " The cobalt scarcity situation of 1978 has a new option now : recover it from manganese nodules.
37.
Interestingly, mining of manganese nodules served as a cover story for the elaborate attempt in 1974 by the CIA to raise the sunken Soviet submarine " K-129 ", using the Glomar Explorer, a ship purpose built for the task by Howard Hughes.
38.
While serving as commanding officer of the research ship NOAAS " Oceanographer " ( R 101 ) during the 1970s, he oversaw research studies of the physical, biological, and benthic region in the tropical Pacific Ocean to determine its biological productivity and the potential damage to the area from deep-ocean mining of manganese nodules.
39.
:: : Conceptually they could be useful for mining manganese nodules and methane clathrate and such, but in practice, the ready mobility and relocatability of shipping must vastly outweigh any leverage that could be obtained taking cars of ore up obliquely to the beach . talk ) 08 : 20, 26 August 2013 ( UTC)
40.
Following up on the question about " Faraday cage from water " : Would the electromagnetic sensors used for geophysical surveying ( such as ground-penetrating radar, or induction-based electromagnetic sensors ) be useful for detecting magnetic / conductive materials ( e . g . iron ore deposits, manganese nodules, or the occasional talk ) 03 : 55, 22 June 2010 ( UTC)
