Minerals Report - International Seabed Authority

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Table 1 Potential microbial metabolic processes at deep-sea hydrothermal vents. Processes involved in the chemosynthetic production of new organic matter (primary production) are given in italics. Hetrotrophic metabolism also occurs in hydrothermal systems, and involves the decomposition of organic matter produced at vents or imported from the surrounding ocean. Organisms representative of most of these forms of metabolism have been isolated and cultured from vent samples but the quantitative importance of the various electron donor and acceptor pathways in overall ecosystem metabolism is poorly understood. Table adapted from Karl (1995). Conditions Electron Electron C source Metabolic process Aerobic Anaerobic (energy) donor H2 HS- S°, S2O3 Fe 2+ Mn 2+ CH4 (and other C-1 compounds) Organic compounds H2 H2 Organic compounds Organic compounds Organic compounds O2 O2 O2 O2 O2 O2 CO2 acceptor S°, S2O4 NO3 NO3 O2 S°, S2O4 Organic compounds CO2 CO2 CO2 ? CH4, CO2, CO Organic compounds CO2 CO2 CO2 Organic Organic Organic compounds Organic compounds H oxidation S oxidation Fe oxidation Fe oxidation Methane(C-1) oxidation Heterotrophic metabolism Methanogenesis S and sulphide reduction H oxidation Denitrification S and sulphide reduction Fermentation INTERNATIONAL SEABED AUTHORITY 276
Since dissolved oxygen in the world's oceans is a by-product of photosynthesis, there is a critical biogeochemical link between the vent ecosystems and the photosynthetic ecosystems in the upper layers of the sea and on land. Had photosynthesis not evolved on earth, hydrothermal vents would only be populated by micro-organisms that do not require dissolved oxygen - such as methanogens that derive energy for growth by converting hydrogen into methane using CO2 as an oxidant. 2. Vent Productivity At vent openings, local ecosystems are nourished by microbial growth that is coupled to the oxidation of H2S, CH4, H2, Fe, Mn and other reducing substances. A recent thermodynamic modelling study3 identifies hydrogen sulphide (H2S) as the most important potential energy source for microbial growth in seafloor hydrothermal systems. Since both H2S and dissolved oxygen are usually available in the mixing zone around vent openings, it is not surprising that the most visibly dominant forms of microbial growth around vent openings are dependent on hydrogen sulphide oxidation. What is unusual is the diversity of sources and locations of chemosynthetic activity within the hydrothermal system. 2.1 Symbiotic and free-living chemosynthesis Seafloor vents At vent openings, some chemosynthetic microorganisms live in symbiotic associations within the tissues of giant worms and bivalves4 , converting CO2 into organic matter to nourish themselves and their hosts. Others grow freely as bio films and filamentous mats on mineral and animal surfaces, providing food for grazing and deposit feeding animals. Predators and scavengers - some vent specialists, others attracted from the surrounding deep sea - complete the food web (Fig. 2). It is likely that at least some biological productivity from seafloor vents is exported to the surrounding deep sea through predation and advection of organic detritus but this food pathway has not been quantified (Fig. 2). INTERNATIONAL SEABED AUTHORITY 277
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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
Page 234 and 235: 5. Biological Communities and Curre
Page 236 and 237: 6. Resource, Technology and Economi
Page 238 and 239: MAJOR DIMENSIONS Length : 13 m Widt
Page 240 and 241: not economical, under the circumsta
Page 242 and 243: Based on grade, tonnage, and oceano
Page 244 and 245: 3. J.R. Hein and C.L. Morgan (1999)
Page 246 and 247: deep sea deposits, Report on the Sc
Page 248 and 249: 29. T. Moritani and S. Nakao (eds.)
Page 250 and 251: Angeles, CA, International Society
Page 252 and 253: geochemistry of Central Pacific fer
Page 254 and 255: 73. J.W. Moffett (1990), Microbiall
Page 256 and 257: 86. D. Puteanus and P. Halbach (54)
Page 258 and 259: 110. A Koschinsky and P Halbach (46
Page 260 and 261: 132. J.R. Hein et al. (1) 133. H.H.
Page 262 and 263: B. 14°30'N 14°20'N 14°10'N 160°
Page 264 and 265: Appendix 4. 1-m-diameter circular c
Page 266 and 267: economic potential in hydrogenetic
Page 268 and 269: Zealand Oceanographic Institute, th
Page 270 and 271: depths. Up welling increases primar
Page 272 and 273: een recovered is 25 cm. He also sai
Page 274 and 275: shallower than 1500 metres, a shall
Page 276 and 277: In relation to mining technology, o
Page 278 and 279: On the most promising sites for cru
Page 280 and 281: In addition to the International Se
Page 282 and 283: 1. Introduction Plant life is impos
Page 286 and 287: Figure 2 Simplified representation
Page 288 and 289: Figure 3 Major components of a gene
Page 290 and 291: the mussel's nutrition. When experi
Page 292 and 293: Reasons for this do not appear to b
Page 294 and 295: egions, one study pointed out that
Page 296 and 297: very widespread, supporting microbi
Page 298 and 299: Studies of the rapid colonisation o
Page 300 and 301: y mining, which is expected to be v
Page 302 and 303: 2. J. B. Corliss, J. Dymond, L. Gor
Page 304 and 305: 19. V. Tunnicliffe, A.G. McArthur a
Page 306 and 307: SUMMARY OF THE PRESENTATION AND DIS
Page 308 and 309: together with mucus that is secrete
Page 310 and 311: close to neutral ph conditions, it
Page 312 and 313: France, Germany, the United Kingdom
Page 314 and 315: of the sedimentary column, whereas
Page 316 and 317: Table 2: Research Submersibles and
Page 318 and 319: 4. Technical Requirements For resea
Page 320 and 321: 5. Processing Technologies The phys
Page 322 and 323: grow on substrate rocks because of
Page 324 and 325: 5. M.D. Hannington, A.G. Galley, P.
Page 326 and 327: Dr. Herzig informed participants th
Page 328 and 329: search for sites of hydrothermal ve
Page 330 and 331: with such a grab. In addition to th
Page 332 and 333: 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
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Figure 4: Volume density of initial
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ITIPRHC = Vnr φHC γ 103 (Mmtoe),
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Table 1: Offshore (deepwater) initi
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Speaking about particular geographi
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World Ocean, including areas off no
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Table 4: Largest oil and gas discov
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The extremely harsh environment bro
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In other regions of the world, enco
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REFERENCES 1. L.G. Weeks (1971), Ma
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SUMMARY OF PRESENTATION AND DISCUSS
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Dr. Vysotsky said that estimates of
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In Southeast Asia, Dr. Vysotsky spo
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Philippines, and possibly Brazil. W
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and we shall encounter severe deple
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In the 1960's scientists discovered
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Figure 2. Worldwide locations of kn
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methane by bacteria in an anoxic en
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It has been assumed that the struct
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identification of gas hydrate in ma
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ottom simulating reflections (BSR)
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Figure 6: Interpretative plot of hy
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floor have indicated the presence o
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of free gas below the BSR is usuall
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sediment and to provide an indicati
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6. Harvesting methane hydrates -Som
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deposits can be commercial, even in
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at a catastrophic scale. Some of th
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Figure 8. Development of hydrate re
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This is perhaps due to the percepti
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would provide Japan with methane fo
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NOTES AND REFERENCES 1. E.D. Sloan
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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
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further pointed out that even if on
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Dr. Desa also informed participants
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thickness of the sediments, the thi
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pressure at sea level leads to hydr
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aware of any studies of natural ear
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CHAPTER 15 A CASE STUDY IN THE DEVE
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NAMIBIA L W OR CT BOTSWANA SOUTH AF
Page 584 and 585:
The Orange River, one of Africa’s
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formation of a large accretion coar
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The deep-water ore body more closel
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4. The mineral resource management
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deployed on a MacArtney FOCUS 400 R
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Utilising Jago has made very detail
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Although at first glance the nature
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to levels capable of sustaining sea
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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:
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
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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
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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
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esearch contributions of Mark Gibbo
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16. Craig R. Smith (1998), The Biol
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magellanicus, Gmein) populations. J
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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
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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
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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
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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
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3.3 Methods used to assess resource
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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
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The most up to date information of
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Manganese crusts that are rich in c
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(3) where bottom currents are effec
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There are four elements are of econ
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averaging 2kg/m 2 . These contain e
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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
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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
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Figure 28 shows the location of are
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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
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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
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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
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vessels there are sophisticated sec
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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
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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
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period that can last up to ten year
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conditions in these areas, as well
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designated by the Ministry. She sai
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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
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All the above-mentioned minerals oc
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e water depths between 400 and 1,00
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As far as the Government is concern
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• 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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