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Nautilus Minerals Inc. was a Canadian deep sea exploration and mining company founded in 1997, and listed on the Toronto Stock Exchange between 2007 and 2019. The company was known for Solwara-1, the first deep sea mining project, an attempt to explore and mine a mineral deposit on the seabed off the coast of Papua New Guinea. [1]
Deep sea mining is the extraction of minerals from the seabed of the deep sea. The main ores of commercial interest are polymetallic nodules , which are found at depths of 4–6 km (2.5–3.7 mi) primarily on the abyssal plain .
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The deep sea is broadly defined as the ocean depth where light begins to fade, at an approximate depth of 200 m (660 ft) or the point of transition from continental shelves to continental slopes. [1] [2] Conditions within the deep sea are a combination of low temperatures, darkness, and high pressure. [3]
Marine hatchetfishes or deep-sea hatchetfishes are small deep-sea mesopelagic ray-finned fish of the stomiiform subfamily Sternoptychinae. They should not be confused with the freshwater hatchetfishes , which are not particularly closely related Teleostei in the characiform family Gasteropelecidae.
It is uncommon to detect deep scattering layers below 1000m. Until recently, sonar has been the predominant method for studying the mesopelagic. [46] The Malaspina Circumnavigation Expedition was a Spanish-led scientific quest in 2011 to gain a better understanding of the state of the ocean and the diversity in the deep oceans. [49]
The Bismarck Sea (German: Bismarcksee, pronounced ['bɪsmarkzeː]) lies in the south-western Pacific Ocean within the Papua New Guinean exclusive economic zone. [ 1 ] [ 2 ] It is located north-east of the island of New Guinea and south of the Bismarck Archipelago .
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