APPENDIX F PHOTOGRAPHS OF CORE SAMPLES
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1 EKATI DIAMOND MINE LONG LAKE CONTAINMENT FACILITY INVESTIGATION 2013 EBA FILE: E MAY 2014 ISSUED FOR USE APPENDIX F PHOTOGRAPHS OF CORE SAMPLES LLCF Geotechnical Site Investigation Report_IFU.docx
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13 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 16: BH13-6 Frozen Core, 0.25 m to 2.50 m E _Photos cdr
14 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 17: BH13-6 Frozen Core, 2.50 m to 4.85 m E _Photos cdr
15 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 18: BH13-6 Frozen Core, 4.85 m to 7.85 m E _Photos cdr
16 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 19: BH13-6 Frozen Core, 9.83 to m E _Photos cdr
17 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 20: BH13-7 CRREL Core, 0.0 m to 0.4 m E _Photos cdr
18 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 21: BH13-7 CRREL Core, 0.4 m to 0.8 m E _Photos cdr
19 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 22: BH 13-7 CRREL Core, 0.8 m to 1.2 m E _Photos cdr
20 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 23: BH13-7 CRREL Core, 1.4 m to 1.7 m E _Photos cdr
21 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 24: BH13-7 CRREL Core, 1.7 m to 2.4 m E _Photos cdr
22 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 25: BH 13-7 CRREL Core, 3.0 m to 3.17 m E _Photos cdr
23 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 26: BH13-7 Core, 3.85 m to 5.85 m E _Photos cdr
24 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 27: BH13-7 Core, 5.85 m to 7.85 m E _Photos cdr
25 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 28: BH13-7 Core, 7.85 m to 8.95 m E _Photos cdr
26 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 29: BH13-7 Core, 9.85 m to m E _Photos cdr
27 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 30: BH13-7 Core m to m E _Photos cdr
28 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 31: BH13-7 Core, m to m E _Photos cdr
29 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 32: BH13-7 Core, m to m E _Photos cdr
30 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 33: BH13-7 Core, m to m E _Photos cdr
31 LLCF INVESTIGATION 2013 EKATI DIAMOND MINE EBA FILE: E MAY 2013 Photo 34: BH13-7 Core, m to m E _Photos cdr
32 EKATI DIAMOND MINE LONG LAKE CONTAINMENT FACILITY INVESTIGATION 2013 EBA FILE: E MAY 2014 ISSUED FOR USE APPENDIX G 2013 LABORATORY TEST RESULTS
33 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized Sand Ice and Clay % Clay Sized Atterberg Limit LL PI SL Ice Ice And Clay Clay Ice and Clay and Sand Ice and Clay and Sand Sand Summary of Laboratory Test Results v2 1
34 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Clay and Sand Sand and Clay Ice and Clay Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized % Clay Sized Atterberg Limit LL PI SL Ice Clay Ice and Clay Clay Sand (Till) Summary of Laboratory Test Results v2 2
35 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Clay and Sand Sand Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized % Clay Sized Atterberg Limit LL PI SL Clay Ice and Silt Sand (Till) Summary of Laboratory Test Results v2 3
36 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Description From (m) Depth To (m) Water Content (%) Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) Grain Size Summary % Sand Sized % Silt Sized % Clay Sized Atterberg Limit LL PI SL Ice and Clay Clay Ice and Clay Clay Ice and Clay Peat Ice and Peat XRD 4 Summary of Laboratory Test Results v2
37 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Clay Sand Sand Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized % Clay Sized Atterberg Limit LL PI SL Sand Ice and Clay Ice and Clay Sand (Till) Summary of Laboratory Test Results v2 5
38 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Clay Clay Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized % Clay Sized Atterberg Limit LL PI SL Ice Sand Ice and Clay and Sand Ice and Sand Ice Summary of Laboratory Test Results v2 6
39 EBA FILE: E NOVEMBER 2013 ISSUED FOR REVIEW Table H-1: Summary of Laboratory Test Results - Samples From The Long Lake Containment Facility Cell B Borehole Depth Water From To Content Description (m) (m) (%) Excess Ice (%) Specific Gravity Frozen Bulk Density (kg/m 3 ) Dry Density (kg/m 3 ) % Sand Sized Grain Size Summary % Silt Sized Ice and Clay Clay Sand and Clay % Clay Sized Atterberg Limit LL PI SL Silt (Lacustrine) Sand (Till) Summary of Laboratory Test Results v2 7
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107 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0 Bulk Density (kg/m 3 ) Sand 1 1 Ice & Clay 2 2 Ice 3 3 Ice & Clay Ice Depth (m) 4 Depth (m) 4 Clay 5 5 Ice & Clay & Sand Water content Excess Ice (%) 7 8 Sand EOBH Measured Calculated Figure 1 BH13-01
108 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0 Bulk Density (kg/m 3 ) Clay & Sand 2 2 Depth (m) 3 4 Depth (m) 3 4 Ice & Clay Ice 5 5 Clay Measured Calculated 6 7 Water content Excess Ice (%) 6 7 Ice & Clay Clay Peat & Till EOBH Figure 2 BH \11580\024\Aeglauer\String 1440.xls
109 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0.0 Bulk Density (kg/m 3 ) Clay & Sand Depth (m) Depth (m) Sand Clay Peat & Till Measured Calculated 4.0 Water content Excess Ice (%) 4.5 EOBH Figure 3 BH \11580\024\Aeglauer\String 1440.xls
110 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0 Bulk Density (kg/m 3 ) Ice & Clay 4 4 Clay Depth (m) 6 Depth (m) 6 Ice & Clay 8 8 Clay 10 Water Content Excess Ice (%) 10 Peat Ice Ice & Silt EOBH Measured Calculated Figure 4 BH \11580\024\Aeglauer\String 1440.xls
111 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0 Bulk Density (kg/m 3 ) Clay Sand Depth (m) 4 5 Depth (m) 4 5 Clay Sand 6 6 Ice & Clay UNFROZEN 7 7 Ice & Clay 8 Water content 8 Peat & Till EOBH Measured 9 Excess Ice (%) 9 Calculated Figure 5 BH \11580\024\Aeglauer\String 1440.xls
112 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) 0 Bulk Density (kg/m 3 ) Clay 2 2 Ice Clay Ice 4 4 Sand Depth (m) 6 8 Depth (m) 6 8 UNFROZEN Silt Ice & Clay & Sand Ice & Sand 12 Water content 12 Ice Measured Calculated 14 Excess Ice (%) 14 EOBH Figure 6 BH \11580\024\Aeglauer\String 1440.xls
113 Dominion Diamonds EKATI Corporation E LLCF Investigation 2013 May 2013 Excess Ice (%) Water Content (%) Bulk Density (kg/m 3 ) Ice & Clay (PK) 5 5 UNFROZEN Clay (PK) Depth (m) 10 Depth (m) 10 UNFROZEN Sand & Clay (PK) UNFROZEN Silt UNFROZEN Sand 25 Water content Excess Ice (%) 25 EOBH Measured Calculated Figure 7 BH \11580\024\Aeglauer\String 1440.xls
114 EKATI DIAMOND MINE LONG LAKE CONTAINMENT FACILITY INVESTIGATION 2013 EBA FILE: E MAY 2014 ISSUED FOR USE APPENDIX H XRD LABORATORY RESULTS LLCF Geotechnical Site Investigation Report_IFU.docx
115 A Tetra Tech Company. COMBINED BULK AND CLAY XRD ANALYSES OF FOUR WEATHERED ROCK SAMPLES RECOVERED FROM THE DIFFERENT DEPTHS AT THE BH13-04 EKATI LOCATION. Work Order A16479 August, 2013 AGAT Laboratories Ltd Street N.E. Calgary, Alberta T2E 6T5
116 A Tetra Tech Company. Work Order No. A16479 Combined XRD Analysis August, 2013 COMBINED X-RAY DIFFRACTION ANALYSIS Four samples of weathered rock recovered from the depth of m, m, m, m and BH13-04 EKATI location were cleaned of hydrocarbons prior to analysis, and the cleaned solids were analyzed by AGAT Laboratories Ltd. for bulk and clay XRD mineralogy. The samples were examined using XRD techniques to determine mineralogical composition. In order to separate the particles less than 3 m in size (clay fraction) from the bulk fraction, the samples were treated in an ultrasonic bath using sodium metaphosphate as a deflocculating agent. The materials were then centrifuged at different speeds, which separate the clay fraction from the bulk materials. The weight fraction was measured for both bulk and clay portions of the samples. Sample# 01 ( m), 02( m) and 04( m): The combined bulk and clay XRD results (Table 1) indicate that the samples consist mainly of smectite (19% to 40%) [samples 1, 2 & 4 best fit saponite Fe-rich, calcium magnesium aluminum silicate hydroxide hydrate Ca 0.5 (MgFe) 3 (SiAl) 4 O 10 (OH) 2.nH 2 O], with lesser amounts of illite (10% to 31%) [potassium aluminum silicate hydroxide, KAl 2 (OH) 2 (AlSi 3 (O,OH) 10 )], biotite (11% to 30%) [K(Mg,Fe)3AlSi3O10(F,OH)2] and calcite (3% to 15%) [calcium carbonate, (CaCO 3 )]. In addition minor amounts of chlorite (7% to 10%) (iron, magnesium aluminum silicate, (Mg,Fe) 5 Al(AlSi 3 )O 10 (OH) 9 ), hornblende (10%, sample 2 only) [(Ca,Na) 2 3(Mg,Fe,Al) 5 (Al,Si) 8 O 22 (OH,F) 2 ], quartz (3% to 5%) [silicon dioxide, SiO 2 ], plagioclase feldspar (2% to 5%) [calcium sodium aluminum silicate, (Ca, Na)(Si,Al) 4 O 8 ], dolomite (2% to 5%) [magnesium calcium carbonate, CaMg(CO 3 ) 2 ], plus trace siderite (sample 4 only ) (iron carbonate, FeCO 3 ) were also identified.
117 A Tetra Tech Company. Work Order No. A16479 Combined XRD Analysis August, 2013 The clay fraction (<3μm) weight ranges from 9.29% to 27.32% of the total rock volume. The clay fraction XRD (Table 1) results indicate that the samples consist mainly of smectite (saponite) (80% to 95%). Minor amounts of illite (3% to 12%), chlorite (2% to 6%), siderite (1%, sample 4 only), dolomite (1%, sample 2 & 4 only) and calcite (1%, sample 2 only). The analyses indicate that these samples consist mainly of clays/weathered igneous or basaltic rock/silts (smectite, illite, chlorite, quartz and plagioclase feldspar). Additionally, minor carbonates (calcite, dolomite and trace siderite, sample 4 only precipitated from ground water?). Biotite (sample all) and hornblende (sample 2 only) weathered igneous our basaltic rock?. The significant amounts of freshwater sensitive smectitic clays (Fe-rich saponite) detected in these samples indicate that water sensitivity swelling of clays are significant in these weathered regolith rocks/shale. Sample# 03 ( m): The combined bulk and clay XRD results (Table 1) indicate that the samples consist mainly of illite (37%) [potassium aluminum silicate hydroxide, KAl 2 (OH) 2 (AlSi 3 (O,OH) 10 )], with lesser amounts of smectite (19%) [best fit sodium rich montmorillonite sodium magnesium aluminum silicate, Na 0.3 (AlMg) 2 Si 4 O 10 OH 2!6H 2 O]. Minor amounts of siderite (10%) (iron carbonate, FeCO 3 ), biotite (9%) [K(Mg,Fe)3AlSi3O10(F,OH)2], dolomite (8%) [magnesium calcium carbonate, CaMg(CO 3 ) 2 ], quartz (6%) [silicon dioxide, SiO 2 ], chlorite (6%) (iron, magnesium aluminum silicate, (Mg,Fe) 5 Al(AlSi 3 )O 10 (OH) 9 ), plagioclase feldspar (3%) [calcium sodium aluminum silicate, (Ca, Na)(Si,Al) 4 O 8 ], pyrite (2%) [iron sulfide, FeS 2 ] were also identified.
118 A Tetra Tech Company. Work Order No. A16479 Combined XRD Analysis August, 2013 The clay fraction (<3μm) weight is 6.77% of the total rock volume. The clay fraction XRD (Table 1) results indicate that the sample consist mainly of smectite (montmorillonite) - (77%). Minor amounts of illite (12%), chlorite (5%), pyrite (2%), dolomite (2%) and plagioclase feldspar (2%) were also detected. The analyses indicate that these samples consist mainly of clays/weathered igneous or basaltic rock/silts (smectite, illite, chlorite, quartz and plagioclase feldspar). Additionally, minor carbonates (dolomite and siderite precipitated from ground water?) and biotite (weathered igneous rock?). The montmorillonite smectite in sample 3 ( m) will be especially prone to swell in presence of freshwater.
119 Table 1- Summary of XRD Analysis Company: A Tetra Tech Company Work Order No. A16479 Location: BH13-04 EKATI August, 2013 SAMPLE TYPE WEIGHT CLAYS Total ID. OF ANALYSIS % Qtz Plag K-Feld Cal Dol Anhy Pyr Biot Horn Sider Kaol Chl Ill ML Smec Clay BULK FRACTION: CLAY FRACTION: m BULK & CLAY BULK FRACTION: CLAY FRACTION: m BULK & CLAY BULK FRACTION: CLAY FRACTION: m BULK & CLAY BULK FRACTION: CLAY FRACTION: m BULK & CLAY TR
120 . XRD LEGEND XRD Analysis is semi-quantitative (approx. 10% at best) and identifies only crystalline substances; amorphous (non-crystalline) substances will not be detected. Bulk Fraction greater than 3 microns size fraction. Clay Fraction less than 3 micron size fraction. Bulk and Clay mathematical recalculation including the bulk and clay fraction representing the whole sample. Total Clay sum of the clay minerals (may include authigenic and matrix clays plus clays in rock fragments). ABBREVIATIONS Amp - Amphiboles Dol - Dolomite Magne - Magnetite Tr - Trace; detectable, Ana - Analcime Gyp - Gypsum Plag - Plagioclase Feldspar but not measurable (0 1%) Anh - Anhydrite Halite - Halite Port - Portlandite Unk - Unknown mineral Ank - Ankerite Horn Hornblende Anata- Anatase Musc - Muscovite Pyrrh - Pyrrhotite Pyr - Pyrite Biot - Biotite Ill - Illite Qtz - Quartz Cal - Calcite Kaol - Kaolinite Sid - Siderite Chl - Chlorite K-feld - Potassic Feldspar Smec - Smectite (montmorillonite) Cupr - Cuprite Graph - Graphite Goe - Goethite ML* - Mixed-layer clays (illite-smectite or smectite-chlorite) NOTE: Not all these minerals are present in this sample suite
121 APPENDIX BULK & CLAY PROCEDURES 1. Crush dry rock sample until grains disintegrate completely. 2. Weigh empty beaker and put sample in it. Weigh again total weight. ( 3g of sample). 3. Add 50 ml of distilled water, plus a few drops of Sodium Metaphosphate. 4. Put in ultrasonic bath for 2 (two) hours. 5. Stir sample and pour out top portion into test tube. 6. Centrifuge for 5 minutes at 600 rpm. 7. Pour out top portion into another test tube for the clay fraction (<3µm) sample. 8. Recombine the coarser residue in the first test tube with the residue in the beaker and weight this bulk sample (after drying completely). Subtract this weight from the total weight to get the clay fraction weight. 9. Centrifuge the clay fines in the second test tube for 20 minutes at maximum rpms. 10. Pour out most of the water then shake test tube using Vortex Mixer. 11. Pipette onto a glass slide. 12. Put the slide on the hot plate (low) until dry then run sample in XRD. 13. Then put slide in a glycol vapour bath overnight (glycolated clay); Smectite will swell and be recognized. 14. If chlorite suspected, then treat the remaining sample in the test tube with diluted HCl and leave overnight (acidized clay). If chlorite was present in the sample this test causes it to disappear. 15. Run the clay fraction slide from 2-38 degrees. 16. Grind the bulk sample and spread the powder on an aluminum holder then run from 4-58 degrees.
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