Appendices 5-13 - Nautilus Cares - Nautilus Minerals

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Depth (m) -1300 -1400 -1500 -1600 -1700 -1800 -1900 -2000 -2100 Bathymetry profiles for: Solwara, P1 Az = 0 Az = 45 Az = 90 Az = 135 Az = 180 Az = 225 Az = 270 Az = 315 -2200 0 2 4 6 Range (km) 8 10 12 Figure 4. Bathymetry profiles used for propagation modelling for source location P1. Grazing angle (!) Figure 5. Comparison between acoustic reflection coefficients for a basalt seabed (blue), the equivalent fluid seabed (red), and the sandy silt seabed (green). Acoustic properties of the materials are given in Table 2. 12
Depth (m) 0 500 1000 1500 2000 2500 1480 1490 1500 1510 1520 1530 1540 1550 Compressional sound speed (m/s) Figure 6. Water column sound speed profile used for propagation modelling. 2.3! Received level calculations Received levels were calculated for each bathymetry track as follows: * The propagation model was run to obtain transmission loss as a function of range and depth for frequencies spaced at 1/3 octave intervals from 8 Hz to 1 kHz. * The source level at each of these frequencies was obtained by integrating the source spectrum over a 1/3 octave frequency band centred on the desired frequency. * The source level and transmission loss were then combined to compute the received level as a function of range and depth for a grid of points covering the length of the propagation track (12 km) to a depth of 2000 m. Range and depth increments were both 50 m. 13
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Project director David Gwyther Proj
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Appendix 8 Juvenile Amphipod Whole
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10-day Survival of M. plumulosa Pag
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Centre for Environmental Contaminan
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Centre for Environmental Contaminan
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Appendix 9 Elutriate Testing Report
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Table of Contents 1. Introduction 3
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These elutriate tests were designed
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2. An aliquot(s) of sample after ce
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Table 1: pH, redox (Eh), conductivi
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1440 minutes which is also consiste
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Concentration (ppb) 250.0 200.0 150
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Concentration (ug/kg ore) (log scal
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Zinc sulfide is the most soluble of
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Table 5: Major ions in 0.45 !m filt
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3.5 Comparison to ANZECC/ARMCANZ (2
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5. References ANZECC/ARMCANZ (2000)
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Appendix 2: Phase 1: Metal concentr
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Appendix 4: Phase 1: Normalised dat
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Appendix 6: Phase 2: Quality contro
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Appendix 8: Metal concentrations in
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MODELLING THE DISPERSION AND SETTLE
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TABLE OF CONTENTS 1 EXECUTIVE SUMMA
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2 MODELLING METHODOLOGY AND DATA 2.
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2.3 The SSFATE Model Sediment dispe
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Earth Mechanics Institute of the Co
Page 167 and 168: 3 RESULTS AND DISCUSSION The calcul
Page 169 and 170: Table 3.1. Summary of areas covered
Page 171 and 172: Figure 3.3b. Sediment bottom thickn
Page 173 and 174: Figure 3.3d. Sediment bottom thickn
Page 175: 4 REFERENCES Swanson J.C., Isaji T.
Page 179 and 180: MODELLING THE DISPERSION OF THE RET
Page 181 and 182: TABLE OF CONTENTS 1 EXECUTIVE SUMMA
Page 183 and 184: Given the range of tidal and basin
Page 185 and 186: dispersion is modelled using a rand
Page 187 and 188: Figure 2.1. Data from the ADCP at 6
Page 189 and 190: 2.5 Outfall Configuration and Assum
Page 191 and 192: 3 RESULTS AND DISCUSSION 3.1 Diluti
Page 193 and 194: Figure 3.1. Snapshot in time of a
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Page 197 and 198: Figure 3.2. The expected (or averag
Page 199 and 200: Figure 3.4 A zoomed in comparison o
Page 201 and 202: 5 REFERENCES Bear, J. and Verruijt,
Page 203: Rusin J., Lunel T. and Davies L., 1
Page 207 and 208: Prediction of underwater noise asso
Page 209 and 210: Table of Contents 1 Introduction ..
Page 211 and 212: 1 Introduction This report presents
Page 213 and 214: 2 Methods 2.1! Source modelling Cav
Page 215 and 216: dB re 1uPa @ 1m 200 195 190 185 180
Page 217: Figure 3. Source location for the s
Page 221 and 222: Figure 7. Plots of predicted receiv
Page 223 and 224: Figure 9. Zoomed view of plots of p
Page 225 and 226: Figure 11. Predicted maximum level
Page 227 and 228: for computing a is given in Fisher
Page 229 and 230: ecent studies have indicated that c
Page 231 and 232: sources to close range, and that th
Page 233 and 234: masking ranges for different marina
Page 235 and 236: References Fisher, F. H., Simmons,
Page 237: Appendix 14 The Potential for Natur
Page 240 and 241: 'leaky' and recent lava flows have
Page 242 and 243: iii.) Incrementally these 1 m swath
Page 247: Appendix 15 Stakeholder Consultatio
Page 250 and 251: Environmental Impact Statement Solw
Page 256 and 257: Wewak (22 October 2007) Not recorde
Page 258: San Diego (17-18 April 2008) Enviro
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Appendices 5-13 - Nautilus Cares - Nautilus Minerals

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