Minerals Report - International Seabed Authority

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deposits can be commercial, even in this low cost energy environment 60 , provided research and development activities in this field are sustained. Hydrate recovery will in all probability involve forced dissociation, which will involve significant demand for heat. Supplying and managing this heat and maintaining an artificial thermodynamic balance that allow the controlled dissociation of hydrate and the safe recovery of methane will probably prove the key to commercialisation. 6.4. Gas hydrate research and development -possible by-products Apart from using methane hydrate as a source of fuel energy, research in the methane hydrate system may also catalyse several other direct and indirect uses of the methane hydrate or the process by which hydrates form. 6.4.1 Desalination of seawater In this process (Figure 7) it was suggested that if seawater is combined with a hydrate former (for e.g. methane) in a suitable pressure temperature controlled vessel, then hydrate will form. After formation, the brine can be separated from the hydrate and the hydrate can then be allowed to disintegrate. This hydrate disintegration will yield fresh water and the hydrate former. The hydrate former can again be returned to the system for continuing hydrate formation with sea-water 7 . Figure 7. Schematic diagram depicting the principle of seawater desalination through the process of hydrate formation (adopted after Nixdorf and Oellrich 7 ). INTERNATIONAL SEABED AUTHORITY 542
6.4.2. Storage of CO2 Carbon dioxide from the environment can be converted into hydrate in deep-sea environmental condition and stored there till dissociation back in terms of CO2 in geological time scale 7 . This subject is the basis of much debate and speculation. 6.4.3. Separation of gaseous mixtures In another research programme 7 the process of hydrate formation was considered for separating gaseous mixtures. It was demonstrated that using the differing tendencies of gases towards hydrate formation, good separation factors could be obtained by allowing the gaseous mixtures to form hydrates. 6.4.4 Electricity generation from flowing gas One interesting possibility has also been conceived 60 for energy generation while transporting methane from deep sourced hydrates to shore through pipelines. A pipeline to a land-based terminal will have a large pressure gradient that could conveniently be dealt with by 'stage decompression'. The gas/fluid in the pipeline can be used for driving turbines for electricity generation. This would accomplish the dual objectives of reducing flow velocity through the transfer of kinetic energy and producing electrical current. 7. Methane hydrates -Some Aspects Of Concern The significance of methane hydrates lies mainly in its tremendous resource potential. Even a small percentage of the estimated global resource, if exploited, can meet world energy demand for centuries. Methane hydrates are located in the shallow submarine geo-sphere, which is a finely balanced system in equilibrium with all its components such as sediment, pore-water, fluid flows, pressure, temperature, overlying water, hydrate etc. Removal of anyone component of this equilibrium may destabilize the whole system leading to irreparable damage. The destabilizing factors may be either natural perturbations or perturbations associated with exploitation. Studies have indicated that methane hydrates have the potential to affect global climate and the geological environment INTERNATIONAL SEABED AUTHORITY 543
Page 2 and 3:
Workshop on Minerals Other than Pol
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Published in Jamaica 2004 by the In
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Chapter 6* Impact of the Developmen
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PART 4 REGULATORY AND PROMOTIONAL F
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The Authority designates one of two
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deposits and gas hydrates of the co
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Prof. Chris German, Challenger Divi
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Mr. Sven Petersen, Research Associa
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SECRETARIAT Ambassador Satya N. Nan
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is to submit “an application that
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that was established to help protec
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on the continental margin. He state
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with the German firm Preussag. As p
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metre or metres of these black smok
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nodules in terms of these metals -
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Professor Herzig stressed however t
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While noting that the continuity of
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asal diameter at 1,600 m water dept
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discovery of the new hydrothermal s
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esearch cruises dedicated to ferrom
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global mid-ocean ridge system. He p
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athymetric map of the seafloor. A s
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were encouraging. In the course of
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that this matter was sensitive, he
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complete a preliminary evaluation o
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metals - nickel, cobalt, manganese,
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12. Issues to be taken into account
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entities. Many of them included min
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In this regard, the Secretary-Gener
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According to Dr. Vysotsky, as estim
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With regard to current knowledge ab
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Dr. Corbett gave a brief account of
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River resulting in the introduction
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Ms. Zaamwani pointed out that as th
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geochemical and geotechnical survey
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of its continental shelf through bi
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also stated, is similar to that of
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Chapter 7 Technical requirements fo
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Table 1: Classification of marine m
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Volcanogenic Metalliferous sediment
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deposits, including massive sulphid
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3. Marine Minerals Related to Deep
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The black smoker chimneys dischargi
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contain metals are present at discr
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Figure 4. A diagrammatic east-west
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and refining of these crusts is mor
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distances of hundreds of kilometres
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2) Deep ocean hot springs at massiv
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6. P.A. Rona, M.D. Hannington, C.V.
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25. M.J. Cruickshank (1998), Law of
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With regard to marine mineral depos
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Focussing on sites of sea floor min
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scientific journal "Nature". The su
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Professor Rona recalled that the in
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like St. Stephen’s in the Kremlin
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He noted that another product of ho
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The reasons why the Red Sea deposit
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a number of geothermal wells have b
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1. Introduction The discovery of hi
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0° 30° 30° 60° Explorer Ridge C
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3. Hydrothermal Convection At ocean
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Due to its increased buoyancy at hi
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5. Metal Contents Despite moderate
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(11.8 wt.%), and have high concentr
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Table 3: Size and Tonnage - Atlanti
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Local enrichment of more than 40 pp
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the Red Sea, Middle Valley, Explore
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Table 8: Advantages of Seafloor Mas
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60 kg Au) located on the neighbouri
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9. Perspective If further explorati
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3. J.M. Franklin, J.W. Lydon, and D
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19. R.A. Zierenberg, Y. Fouquet, D.
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35. J. Collier, M. Sinha (1990), Se
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53. P.M. Herzig, Y. Fouquet, M.D. H
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68. M.D. Hannington, J.M. Peter, an
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85. The New York Times (1997), Firs
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southern segment is a fast-spreadin
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Professor Herzig said that the spec
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Professor Herzig said that the depo
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Professor Herzig informed participa
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he informed participants that in ad
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In relation to Conical Seamount, Pr
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deposits is essential to reliably a
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would be removed from the deposit.
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CHAPTER 3 REGIONAL AND LOCAL VARIAB
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� Metallogenic provinces that are
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A digital map of ore-bearing region
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of the slopes in between 1500-3000m
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development there are areas with ma
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Regarding the formation of the firs
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SUMMARY OF THE PRESENTATION AND DIS
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the Juan-de-Fuca Ridge, the Guaymas
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Intensive investigations resulted i
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Based on the potential resources co
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It should be noted that other massi
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Generally, the massive sulphides or
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With regard to the gold values repo
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CHAPTER 5 COBALT-RICH FERROMANGANES
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Current patterns, topography, botto
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Table 1: Contents of manganese, iro
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INTERNATIONAL SEABED AUTHORITY 194
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Depth (km) 0 100 200 0 1 2 3 4 5 O
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sediment. Those thinly veiled crust
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Table 3: Cruises dedicated to the s
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today. Field studies by the USA, Ge
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Phosphorite and fresh basalt are st
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3.2. Mineralogy The mineralogy of b
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Samples 25 20 15 10 5 0 Growth Rate
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3.4. Chemical Composition All USGS
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elements associated with the detrit
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Sample/PAAS 100 10 1 0.1 0.01 0.001
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Phosphatization of the older Fe-Mn
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A. B. C. Mn FSM-Palau Marshall Isla
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4. Iron-Manganese Crust Formation E
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5. Biological Communities and Curre
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6. Resource, Technology and Economi
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MAJOR DIMENSIONS Length : 13 m Widt
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not economical, under the circumsta
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Based on grade, tonnage, and oceano
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3. J.R. Hein and C.L. Morgan (1999)
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deep sea deposits, Report on the Sc
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29. T. Moritani and S. Nakao (eds.)
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Angeles, CA, International Society
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geochemistry of Central Pacific fer
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73. J.W. Moffett (1990), Microbiall
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86. D. Puteanus and P. Halbach (54)
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110. A Koschinsky and P Halbach (46
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132. J.R. Hein et al. (1) 133. H.H.
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B. 14°30'N 14°20'N 14°10'N 160°
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Appendix 4. 1-m-diameter circular c
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economic potential in hydrogenetic
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Zealand Oceanographic Institute, th
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depths. Up welling increases primar
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een recovered is 25 cm. He also sai
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shallower than 1500 metres, a shall
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In relation to mining technology, o
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On the most promising sites for cru
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In addition to the International Se
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1. Introduction Plant life is impos
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Table 1 Potential microbial metabol
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Figure 2 Simplified representation
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Figure 3 Major components of a gene
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the mussel's nutrition. When experi
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Reasons for this do not appear to b
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egions, one study pointed out that
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very widespread, supporting microbi
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Studies of the rapid colonisation o
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y mining, which is expected to be v
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2. J. B. Corliss, J. Dymond, L. Gor
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19. V. Tunnicliffe, A.G. McArthur a
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together with mucus that is secrete
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close to neutral ph conditions, it
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France, Germany, the United Kingdom
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of the sedimentary column, whereas
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Table 2: Research Submersibles and
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4. Technical Requirements For resea
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5. Processing Technologies The phys
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grow on substrate rocks because of
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5. M.D. Hannington, A.G. Galley, P.
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Dr. Herzig informed participants th
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search for sites of hydrothermal ve
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with such a grab. In addition to th
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Remotely operated vehicles (ROVs) D
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equired to make sure that the ship
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Dr. Herzig summarized the technical
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commercial. Since confidentiality o
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CHAPTER 8 FACTORS IN FINANCING EXPL
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The traditional project stages that
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there is a subset that forms in spe
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of competing for the attention of i
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7. Why SMS Mines will be Lower Cost
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8. Modelling SMS mining offers scop
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Because exhalative SMS deposits are
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flow to the metal markets. He also
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shortage in the next couple of year
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starts, the operation could take pl
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Based on this and other considerati
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Mr. Malnic said that the mining ope
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and silver. Except for volcanically
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2.2. Major Features of the Draft Of
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As a general principle the fiscal p
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I think the issue is not as simple
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Table 3: Data and information requi
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former case a reminder notice is se
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6. Elisabeth Mann Borgese, Ocean Go
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longer an area is held, more inform
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from the deep sea. One group of enz
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CHAPTER 10 NATIONAL AND INTERNATION
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times greater than atmospheric pres
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Fig. 2 Schematic diagram showing th
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Figure. 4: Distributions of hydroth
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Figure 6: Distributions of hydrothe
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Figure.8: Plot of incidence of hydr
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et al., 1998) - one of the two very
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seabed but, instead, are dispersed
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Figure 10: The Southampton Oceanogr
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oxide material, polymetallic sulphi
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Figure 13: TOBI sidescan sonar imag
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ACKNOWLEDGEMENTS I would like to ex
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15. Cronan D S (ed.) Handbook of Ma
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33. Gross G.A. and McLeod C.R., Met
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51. Jones H. A. and Davies P. J., P
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69. Manheim F. T., Composition and
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87. Muller, R.D., Roest, W.R., Roye
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107. Warren, J., Evaporites: their
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cultivating sulphide oxidising bact
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In relation to spreading rates at v
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coordination to actually get to go
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esources and to know whether or not
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ROVS, AUVs or submersibles to produ
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have oversimplified the case in his
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CHAPTER 11 A COMPARISON OF THE POSS
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This paper proposes to compare the
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• The distance between the mining
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economic value. Phosphatisation has
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The morphology of the mineral edifi
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Table 3: Geochemistry of known mass
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Detailed exploration has not been c
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flotation, can separate the ferroma
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The crushed and ground ore can be c
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3.2. Assumptions made for each kind
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alloys or even manganese ore in the
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ought the nickel price to a top. Th
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Because the metal market economy is
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14. J. -P. Lenoble (1992), Future d
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31. J. Francheteau, D. Needham, P.
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48. J. -P. Lenoble (1996), Les nodu
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66. J. -J. Prédali and J. -P. Polg
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classification system, Mr. Lenoble
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To recapitulate the sizes and possi
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proposed processing technologies an
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international community is only jus
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Part 2 ISSUES TO BE TAKEN INTO ACCO
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The Secretary-General said that the
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Mr. Nandan pointed out that the nex
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problems would resurface, because i
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prospecting would be more applicabl
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dimensional seafloor massive sulphi
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workshop, in relation to deposit ev
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an economic perspective, including
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sulphides and cobalt-rich ferromang
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CHAPTER 13 PETROLEUM POTENTIAL AND
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structure and filled with sediments
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Basin groups are subdivided into ty
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during the late Mesozoic-Cenozoic s
Page 500 and 501: Figure 4: Volume density of initial
Page 502 and 503: ITIPRHC = Vnr φHC γ 103 (Mmtoe),
Page 504 and 505: Table 1: Offshore (deepwater) initi
Page 506 and 507: Speaking about particular geographi
Page 508 and 509: World Ocean, including areas off no
Page 510 and 511: Table 4: Largest oil and gas discov
Page 512 and 513: The extremely harsh environment bro
Page 514 and 515: In other regions of the world, enco
Page 516 and 517: REFERENCES 1. L.G. Weeks (1971), Ma
Page 518 and 519: SUMMARY OF PRESENTATION AND DISCUSS
Page 520 and 521: Dr. Vysotsky said that estimates of
Page 522 and 523: In Southeast Asia, Dr. Vysotsky spo
Page 524 and 525: Philippines, and possibly Brazil. W
Page 526 and 527: and we shall encounter severe deple
Page 528 and 529: In the 1960's scientists discovered
Page 530 and 531: Figure 2. Worldwide locations of kn
Page 532 and 533: methane by bacteria in an anoxic en
Page 534 and 535: It has been assumed that the struct
Page 536 and 537: identification of gas hydrate in ma
Page 538 and 539: ottom simulating reflections (BSR)
Page 540 and 541: Figure 6: Interpretative plot of hy
Page 542 and 543: floor have indicated the presence o
Page 544 and 545: of free gas below the BSR is usuall
Page 546 and 547: sediment and to provide an indicati
Page 548 and 549: 6. Harvesting methane hydrates -Som
Page 552 and 553: at a catastrophic scale. Some of th
Page 554 and 555: Figure 8. Development of hydrate re
Page 556 and 557: This is perhaps due to the percepti
Page 558 and 559: would provide Japan with methane fo
Page 560 and 561: NOTES AND REFERENCES 1. E.D. Sloan
Page 562 and 563: 20. R.F. Meyer (1981), Speculation
Page 564 and 565: Master Workshop on Gas Hydrates: Re
Page 566 and 567: 60. M.D. Max and M.J. Cruickshank (
Page 568 and 569: is that their exploitation might re
Page 570 and 571: further pointed out that even if on
Page 572 and 573: Dr. Desa also informed participants
Page 574 and 575: thickness of the sediments, the thi
Page 576 and 577: pressure at sea level leads to hydr
Page 578 and 579: aware of any studies of natural ear
Page 580 and 581: CHAPTER 15 A CASE STUDY IN THE DEVE
Page 582 and 583: NAMIBIA L W OR CT BOTSWANA SOUTH AF
Page 584 and 585: The Orange River, one of Africa’s
Page 586 and 587: formation of a large accretion coar
Page 588 and 589: The deep-water ore body more closel
Page 590 and 591: 4. The mineral resource management
Page 592 and 593: deployed on a MacArtney FOCUS 400 R
Page 594 and 595: Utilising Jago has made very detail
Page 596 and 597: Although at first glance the nature
Page 598 and 599: to levels capable of sustaining sea
Page 600 and 601:
In accordance with De Beers’ over
Page 602 and 603:
ACKNOWLEDGEMENTS I thank my many co
Page 604 and 605:
16. I.B. Corbett (1989), The sedime
Page 606 and 607:
SUMMARY OF PRESENTATION AND DISCUSS
Page 608 and 609:
eroded during regression and transg
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diamond mining business. Dr. Corbet
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technological step, Dr. Corbett sug
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and Ore Reserves (JORC). He also sa
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With another slide, Dr. Corbett sho
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of De Beers’ deepwater operation
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system that allows other functions
Page 622 and 623:
CHAPTER 16 A CASE STUDY IN THE DEVE
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change through heat transport and c
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Main sites of oxygen minimum Flow o
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• Undertake necessary mitigatory
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State, by such spilling or pollutio
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including diamonds, from non-fluore
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agreements require that government
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including current velocities, oxyge
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ackground levels and confined to a
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Sonar equipment used on some DBM ve
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advocated this approach for environ
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local geology, sedimentology and mi
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Levene’s test could also be used
Page 648 and 649:
unquestionably be alarming, and the
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3.4 Future Innovation in Video Tran
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sponges and bryozoans to more gener
Page 654 and 655:
esearch contributions of Mark Gibbo
Page 656 and 657:
16. Craig R. Smith (1998), The Biol
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magellanicus, Gmein) populations. J
Page 660 and 661:
Page 662 and 663:
presentation he would show that kno
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process of self-regulatory checking
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initial mining, but that within a v
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continental shelf. He suggested tha
Page 670 and 671:
would result in the extermination o
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The participant from Saudi Arabia r
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of the Namibian government would be
Page 676 and 677:
With the exception of the West Paci
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1.3 Resources The oceanic regions o
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2 Physiography of the Ocean Floor a
Page 682 and 683:
Page 684 and 685:
partially separated continental fra
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occur beneath the continental shelf
Page 688 and 689:
Using these criteria, a number of a
Page 690 and 691:
3.3 Methods used to assess resource
Page 692 and 693:
4.1.2 How marine placer deposits ar
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to survive the transgression are pr
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4.2.2 Where marine phosphorite depo
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sedimentary layers that are favoura
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4.4 Marine Polymetalic sulphides 4.
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4.4.4 Resource potential of marine
Page 704 and 705:
The most up to date information of
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Manganese crusts that are rich in c
Page 708 and 709:
(3) where bottom currents are effec
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There are four elements are of econ
Page 712 and 713:
averaging 2kg/m 2 . These contain e
Page 714 and 715:
520 million tonnes of copper”. In
Page 716 and 717:
Page 718 and 719:
Page 720 and 721:
Elemental resources for the top ten
Page 722 and 723:
natural gas is commonly formed in a
Page 724 and 725:
These areas are almost exclusively
Page 726 and 727:
Table 5 (with reference to Figure 2
Page 728 and 729:
with the term “resource” used e
Page 730 and 731:
Similarly, much of the continental
Page 732 and 733:
Although this is not an assessment
Page 734 and 735:
A qualitative indication of resourc
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4.7.2 How marine gas hydrate deposi
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However, this does not include the
Page 740 and 741:
Figure 28 shows the location of are
Page 742 and 743:
ELCS region Location Hydrate potent
Page 744 and 745:
Page 746 and 747:
Franklin Seamount, western Woodlark
Page 748 and 749:
Emery K. O. and Noakes L. C., Econo
Page 750 and 751:
Herzig, P.M. and Hannington M. D.,
Page 752 and 753:
Kvenvolden, K.A., Gas hydrates as a
Page 754 and 755:
Meyer, R.F., Speculations on oil an
Page 756 and 757:
Scott, S.D., Seafloor polymetallic
Page 758 and 759:
Evaporite deposits http://www.black
Page 760 and 761:
Page 762 and 763:
these areas cover something like 25
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continental margins. He mentioned p
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programme off Nankeen, Japan, and t
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een happily persuaded in the other
Page 770 and 771:
Part 4 REGULATORY AND PROMOTIONAL F
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own Namdeb. In addition, there are
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The stated purpose of the Minerals
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programme and specified minimum exp
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them to give proper attention to ea
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evaluation purposes in monitoring t
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as far as the development of minera
Page 784 and 785:
Ms. Zaamwani said that the main leg
Page 786 and 787:
Ms. Zaamwani told participants that
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the Ministry could benefit, as is c
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understaffing do not currently util
Page 792 and 793:
One participant recalled that Ms. Z
Page 794 and 795:
vessels there are sophisticated sec
Page 796 and 797:
Ms. Zaamwani was asked about regula
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70° 60° NORTH SEA -30° -20° -10
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of 9.6 billion Sm 3 oil equivalents
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Nor does it give rights or priority
Page 804 and 805:
1 4. Data Management All data relat
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possibility to evaluate the results
Page 808 and 809:
planning of future activities. The
Page 810 and 811:
SUMMARY OF THE PRESENTATION ON THE
Page 812 and 813:
in the Barents Sea there is still a
Page 814 and 815:
period that can last up to ten year
Page 816 and 817:
conditions in these areas, as well
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designated by the Ministry. She sai
Page 820 and 821:
quantity of data involved in the in
Page 822 and 823:
operation (PDO) is normally prepare
Page 824 and 825:
to the data when an area is relinqu
Page 826 and 827:
CHAPTER 20 STATUS REPORT ON THE DAT
Page 828 and 829:
All the above-mentioned minerals oc
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e water depths between 400 and 1,00
Page 832 and 833:
As far as the Government is concern
Page 834 and 835:
• Ordinance number 195, of Decemb
Page 836 and 837:
This tax must be paid up to January
Page 838 and 839:
the one whose burning is authorised
Page 840 and 841:
ANP may send a representative to fo
Page 842 and 843:
esources other than oil or natural
Page 844 and 845:
to the safety of persons and animal
Page 846 and 847:
found offshore Brazil. With regard
Page 848 and 849:
een discovered in the basin, includ
Page 850 and 851:
enhance oil recovery. He said that
Page 852 and 853:
g. Ordinance number 10 that regulat
Page 854 and 855:
He said that the environment has to
Page 856 and 857:
ids. These comprised five Brazilian
Page 858 and 859:
After oil exploration gained moment
Page 860 and 861:
Those who are entitled to the land
Page 862 and 863:
and replaced by the President, and
Page 864 and 865:
(ii) Assure the safety of navigatio
Page 866 and 867:
explorations may continue concurren
Page 868 and 869:
Appoint an authorized representativ
Page 870 and 871:
The contractor will recover all ope
Page 872 and 873:
of US dollar... (negotiable) within
Page 874 and 875:
Processing of products is subject t
Page 876 and 877:
are more than 30 articles in the va
Page 878 and 879:
Page 880 and 881:
Ambassador Djalal informed particip
Page 882 and 883:
production-sharing contracts became
Page 884 and 885:
said that the remainder of the prod
Page 886 and 887:
and cooperation with Pertamina and
Page 888 and 889:
A participant wanted to know whethe
Page 890 and 891:
of CCOP/SOPAC was to promote and de
Page 892 and 893:
STAR was founded in 1985 in collabo
Page 894 and 895:
Since 1972, SOPAC has, on behalf of
Page 896 and 897:
France Seapso 1985-1986 Cook Is, Fi
Page 898 and 899:
polymetallic massive sulphides. The
Page 900 and 901:
crusts have also been found in area
Page 902 and 903:
Figure 2: Location Map of Known Pol
Page 904 and 905:
is currently no regional agency tas
Page 906 and 907:
The types of data that have been in
Page 908 and 909:
A new agreement between Japan and S
Page 910 and 911:
SOPAC’s continuing and relentless
Page 912 and 913:
deposits will be mined at some poin
Page 914 and 915:
REFERENCES 1. D. Tiffin and C Matos
Page 916 and 917:
18. J. Malnic. (1999). Marine Miner
Page 918 and 919:
8. Individual nations should develo
Page 920 and 921:
SUMMARY OF THE PRESENTATION ON THE
Page 922 and 923:
With regard to the name of the orga
Page 924 and 925:
the benefit that had accrued to the
Page 926 and 927:
The discussions that followed Mr. S
Page 928:
About the International Seabed Auth
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Minerals Report - International Seabed Authority

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