An integrated method for the quantitative evaluation of mineral resources of cobalt-rich crusts on seamounts

被引:26
作者
Du, Dewen [1 ,2 ]
Ren, Xiangwen [1 ,2 ]
Yan, Shijuan [1 ]
Shi, Xuefa [1 ]
Liu, Yonggang [3 ]
He, Gaowen [3 ]
机构
[1] First Inst Oceanog, State Ocean Adm, Qingdao 266061, Peoples R China
[2] Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Mineral Resou, Qingdao 266061, Peoples R China
[3] Guangzhou Marine Geol Survey, Guangzhou, Peoples R China
关键词
Cobalt-rich crusts; Mineral resources; Quantitative evaluation; Seamount; FERROMANGANESE CRUST; CONTINENTAL MARGINS; PACIFIC; LANDSLIDES; MORPHOLOGY; DEPOSITS; GRADIENT;
D O I
10.1016/j.oregeorev.2017.01.011
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Cobalt-rich crusts on seamounts potentially have the economic value of multiple metals. In the field of exploration, it is important to perform quantitative evaluations of mineral resources and delineate promising areas in survey regions for future mining. Accordingly, this study, based on prior knowledge, develops an integrated method to quantitatively evaluate mineral resources of cobalt-rich crusts on sea mounts and gives an application example to demonstrate this method. The method includes four steps: first, defining units with certain areas and shapes on the target seamount (a 20 km(2) square block in the application example) and estimating characteristic values of the cobalt-rich crust for each unit with known geological survey data using a space interpolation method such as Kriging; second, presenting several model algorithms, i.e. Regional Coverage of Crusts, Suitable Slope Percentage for Mining and Fitting Area on Slopes, to extract the corresponding regional metallogenic factors for each unit by inputting regional surveying data (such as bathymetry data) into these models; third, considering both the features and regional metallogenic factors of cobalt-rich crusts in each unit to estimate their distribution of mineral resources on the entire seamount; and last, according to the distribution of the mineral resources and international social and economic requirements (such as the regulations of the International Seabed Authority), delineating a promising area for future mining. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:174 / 184
页数:11
相关论文
共 42 条
[21]  
Melinikov M.E., 2007, RUSS J PAC GEOL, V26, P65
[22]  
Melinikov M.E., 2006, RUSS J PAC GEOL, V25, P3
[23]  
Melinikov M.E., 2012, RUSS J PAC GEOL, V31, P32
[24]  
Melinikov M.E., 1994, TIKHOOKEAN GEOL, V1994, P13
[25]   Age and formation conditions of the Co-rich manganese crust on guyots of the Magellan seamounts [J].
Melnikov, M. E. ;
Pletnev, S. P. .
LITHOLOGY AND MINERAL RESOURCES, 2013, 48 (01) :1-13
[26]  
Melnikov M.E., 2009, Geol. Polezn. Iskop. Mirov. Okeana, P23
[27]  
Novikov G.V., 2014, LITHOL MINERAL RESOU, V49
[28]   Regional Distribution of Co-Rich Ferromanganese Crusts and Evolution of the Seamounts in the Northwestern Pacific [J].
Okamoto, Nobuyuki ;
Usui, Akira .
MARINE GEORESOURCES & GEOTECHNOLOGY, 2014, 32 (03) :187-206
[29]  
Ren Xiangwen, 2011, Marine Geology & Quaternary Geology, V31, P65, DOI 10.3724/SP.J.1140.2011.06065
[30]   An experiment using a circular neighborhood to calculate slope gradient from a DEM [J].
Shi, Xun ;
Zhu, A-Xing ;
Burt, James ;
Choi, Wes ;
Wang, Rongxun ;
Pei, Tao ;
Li, Baolin ;
Qin, Chengzhi .
PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 2007, 73 (02) :143-154