scholarly journals The Present Conditions and Problem for Recovering Metals from Cobalt Rich Manganese Crust

2015 ◽  
Vol 131 (12) ◽  
pp. 643-647
Author(s):  
Hiroshi SHIBASAKI ◽  
Mikio KOBAYASHI ◽  
Yasuhiro KONISHI ◽  
Tomoyuki YOSHIDA ◽  
Satoshi SHIOKAWA
Keyword(s):  
Manganese Crust

Autonomous Underwater Vehicle “BOSS-A” for Acoustic and Visual Survey of Manganese Crusts

2016 ◽  
Vol 28 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Yuya Nishida ◽  
◽  
Kenji Nagahashi ◽  
Takumi Sato ◽  
Adrian Bodenmann ◽  
...  
Keyword(s):  
Measurement Method ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Thickness Measurement ◽  
The State ◽  
Constant Speed ◽  
Visual Survey ◽  
Acoustic Instruments ◽  
Manganese Crust ◽  
Visual Instrument

[abstFig src='/00280001/10.jpg' width=""300"" text='Autonomous underwater vehicle BOSS-A' ]In order to effectively investigate the distribution and amount of cobalt-rich manganese crust (CRC), an autonomous underwater vehicle BOSS-A equipped with visual and acoustic instruments were developed. BOSS-A observes the seafloor along preset waypoints at a constant speed and altitude. Detailed 3D seafloor images can be obtained from the visual instrument, which employs a sheet laser and a camera. In addition, an acoustic instrument measures the CRC thickness beneath BOSS-A. The CRC at Katayama seamount was surveyed in February. The results visually presented the state and distribution of the CRC in this site and clarified the amount of the CRC. In the future, the authors will develop a more reliable thickness measurement method.

scholarly journals Incorporation rate measurements of 10Be, 230Th, 231Pa, and 239,240Pu radionuclides in manganese crust in the Pacific Ocean: A search for extraterrestrial material

2007 ◽  
Vol 63 (5) ◽  
pp. 813-820 ◽  
Author(s):  
Norikazu Kinoshita ◽  
Yuko Sato ◽  
Takeyasu Yamagata ◽  
Hisao Nagai ◽  
Akihiko Yokoyama ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Incorporation Rate ◽  
The Pacific ◽  
Manganese Crust ◽  
The Pacific Ocean ◽  
Extraterrestrial Material

Characteristics of silicate glasses derived from vitrification of manganese crust tailings

2009 ◽  
Vol 35 (5) ◽  
pp. 1961-1967 ◽  
Author(s):  
G.F. Terry Lay ◽  
Maria C. Rockwell ◽  
John C. Wiltshire ◽  
Chefi Ketata
Keyword(s):  
Silicate Glasses ◽  
Manganese Crust

Jurassic microbial communities in hydrothermal manganese crust of the Rifian Calcareous Chain, Northern Morocco

2011 ◽  
Vol 233 (1-4) ◽  
pp. 159-172 ◽  
Author(s):  
M. Reolid ◽  
K. El Kadiri ◽  
I. Abad ◽  
F. Olóriz ◽  
J. Jiménez-Millán
Keyword(s):  
Microbial Communities ◽  
Manganese Crust

Production and characteristics of glass-ceramics derived from manganese crust tailings

2009 ◽  
Vol 44 (13) ◽  
pp. 3508-3513 ◽  
Author(s):  
Terry Lay ◽  
Maria Rockwell ◽  
Philippe Westreich
Keyword(s):  
Glass Ceramics ◽  
Manganese Crust
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