Prichard et al. Geochemistry and mineralogy of Pd in the magnetitite layer within the upper gabbro of the Mesoarchean Nuasahi Massif, (Orissa, India)
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Geochemistry and mineralogy of Pd in the magnetitite layer within the upper gabbro of the Mesoarchean Nuasahi Massif, (Orissa, India)
Hazel M. Prichard1, Sisir K. Mondal2 *, Ria Mukherjee 2, 3, Peter C. Fisher1, Nicolas Giles1
1School of Earth and Ocean Sciences, Cardiff University, Cardiff, CF10 3AT, Wales, UK
2Department of Geological Sciences, Jadavpur University, Kolkata-700032, India
3School of Geosciences, University of the Witwatersrand, Johannesburg 2001, South Africa
*Corresponding author:
ESM: Table A
APPENDIX-A Description of samples with locations (M = malachite staining, F = fresh sample, A = altered sample, B = boulder)
Sample No. / Samples / Location of Samples / FeaturesNSH/14/21 / magnetitite / Loc 11 (N21˚17.466‘/E86˚19.630‘) / A / B
NSH/14/22 / magnetitite / Loc 12 (N21˚17.454‘/E86˚19.529‘) / A
NSH/14/9 / magnetitite / Loc 7 (N21˚16.970‘/E86˚20.157‘) / B
NSH/14/10 / hanging wall gabbro / Loc 8 (N21˚17.008‘/E86˚20.188‘)
NSH/14/8 / magnetitite / Loc 6 (N21˚16.971‘/E86˚20.207‘) / F
NSH/14/3 / magnetitite / Loc 2 (N21˚16.861‘/E86˚20.378‘) / M / A / B
NSH/14/6 / magnetitite / Loc 5 (N21˚16.961‘/E86˚20.255‘) / A / B
NSH/14/7 / magnetitite / Loc 5 (N21˚16.961‘/E86˚20.255‘) / A / B
NSH/14/4 / footwall gabbro / Loc 3 (N21˚16.886‘/E86˚20.307‘)
NSH/14/5 / magnetitite / Loc 4 (N21˚16.887‘/E86˚20.316‘) / F
NSH/14/2 / magnetitite / Loc 1 top (N21˚16.863‘/E86˚20.386‘) / F
NSH/14/1(a) / magnetitite / Loc 1 base (N21˚16.863‘/E86˚20.386‘) / M / A
NSH/14/1(b) / magnetitite / Loc 1 base (N21˚16.863‘/E86˚20.386‘) / M / A
NSH/14/20 / magnetitite / Loc 10 top (N21˚16.849‘/E86˚20.392‘) / A
NSH/13/43 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / M / A
NSH/13/45 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / M / A
NSH/13/44 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/19 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/18 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/17 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/16 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / A
NSH/14/14 / magnetitite / Loc 10 (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/13 / magnetitite / Loc 10 base (N21˚16.849‘/E86˚20.392‘) / F
NSH/14/23 / magnetitite / Loc 13 (N21˚16.806‘/E86˚20.450‘) / F
NSH/14/24 / magnetitite / Loc 14 (N21˚16.805‘/E86˚20.467‘) / F
NSH/14/25 / magnetitite / Loc 15 (N21˚16.853‘/E86˚20.997‘) / A
Prichard et al. Geochemistry and mineralogy of Pd in the magnetitite layer within the upper gabbro of the Mesoarchean Nuasahi Massif, (Orissa, India)
ESM: Table B
APPENDIX-B Concentrations of PGE, Au, base metals, S and As in both analysing the standards as unknowns and in the duplicate analyses of the samples (available online)
Sample No. / Auppb / Ir
ppb / Os
ppb / Pd
ppb / Pt
ppb / Rh
ppb / Ru
ppb / Ag
ppm / As
ppm / Bi
ppm / Co
ppm / Cu
ppm / Ni
ppm / Pb
ppm / S
wt.% / Sb
ppm / Sn
ppm / Te
ppm / Zn
ppm
Detection limit / 2 / 1 / 1 / 1 / 1 / 1 / 1 / 0.05 / 0.5 / 0.01 / 0.1 / 0.5 / 0.5 / 0.5 / 0.05 / 0.05 / 0.1 / 0.2 / 1
Sample duplicates
NSH/14/6 / 24 / nd / 1 / 105 / 5 / 6 / 5
NSH/14/7 / 21 / nd / 2 / 188 / 8 / 5 / 12
NSH/14/2 / 0.08 / 1.6 / 0.09 / 185.2 / 292.5 / 899.8 / 3.3 / nd / 5.07 / 1.5 / 0.3 / 489
Standards as unknown
AMIS0278 / 241 / 34 / 14 / 2038 / 1627 / 148 / 146
AMIS0234 / 237 / 1 / nd / 13 / 34 / 3 / 5
OREAS 45e / 0.32 / 17.8 / 0.32 / 58.8 / 851.6 / 452.6 / 18.2 / nd / 1.08 / 1.3 / nd / 48
OREAS 45d / 0.14 / 12.4 / 0.30 / 28.8 / 370.5 / 220.8 / 23.0 / 0.07 / 0.79 / 2.8 / nd / 44
AMIS0361 / 0.30 / 115.2 / 0.14 / 6.9 / 30.0 / 16.4 / 35.2 / 0.11 / 3.41 / 0.9 / nd / 19
AMIS0362 / 0.14 / 35.8 / 0.07 / 4.1 / 16.2 / 10.4 / 5.5 / 0.06 / 0.78 / 0.4 / nd / 7
Control blank / 2 / nd / nd / 1 / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd / nd
Au and platinum-group element were analyzed by Ni sulfide fire assay followed by ICP-MS; Base metals plus S and As were analyzed by four acid digestion followed by ICP-MS. AMIS0278: Platreef PGE Ore, Bushveld Complex, South Africa; AMIS0234: Gold ore, Damang Gold Mine, Ghana; OREAS 45e: Lateritic soil lithogeochem reference material, Southern Murchison region of Western Australia; OREAS 45d: Ferruginous soil lithogeochem reference material, Southern Murchison region of Western Australia; AMIS0361: Iron Ore, Hamersley Province, Western Australia; AMIS0362: Iron Ore, Hamersley Iron Ore Province, Western Australia; nd: not detected
ESM: Table C
APPENDIX-C Certified concentrations of PGE and Au in the standards used during analyses (available online)
Certified concentrations in standards / Aug/t / Ir
g/t / Os
g/t / Pd
g/t / Pt
g/t / Rh
g/t / Ru
g/t
AMIS0278: Platreef PGE Ore, Bushveld Complex, South Africa / 0.26 ± 0.03 / 0.036 ± 0.006 / 2.10 ± 0.02 / 1.69 ± 0.16 / 0.15 ± 0.02 / 0.15 ± 0.04
AMIS0234: Gold ore, Damang Gold Mine, Ghana / 0.229 ± 0.03
ESM: Table D
APPENDIX-D Certified concentrations of base metals, S and As in the standards used during analyses (available online)
Certified concentrations in standards / Agppm / As
ppm / Bi
ppm / Co
ppm / Cu
ppm / Ni
ppm / Pb
ppm / S
wt.% / Sb
ppm / Sn
ppm / Te
ppm / Zn
ppm
OREAS 45e: Lateritic soil lithogeochem reference material, Southern Murchison region of Western Australia / 0.311 (0.062)
(1SD) / 16.3
(1.53)
(1SD) / 0.28
(0.03)
(1SD) / 57
(3.9)
(1SD) / 780
(23.4)
(1SD) / 454
(24.8)
(1SD) / 18.2
(1.9)
(1SD) / 0.046
(0.005)
(1SD) / 1.00
(0.096)
(1SD) / 1.32
0.074
(1SD) / 46.7
(5.7)
(1SD)
OREAS 45d: Ferruginous soil lithogeochem reference material, Southern Murchison region of Western Australia / 13.8
(0.86)
(1SD) / 0.31
(0.03)
(1SD) / 29.5
(1.61)
(1SD) / 371
(12.8)
(1SD) / 231
(13.4)
(1SD) / 21.8
(1.35)
(1SD) / 0.049
(0.004)
(1SD) / 0.82
(0.09)
(1SD) / 2.78
(0.200)
(1SD) / 45.7
(4.7)
(1SD)
*AMIS0361: Iron Ore (Fe = 49.76 ± 3.50 %), Hamersley Iron Ore Province, Western Australia / 0.40
(0.25)
(2SD) / 110
(21.4)
(2SD) / 0.14
(0.17)
(2SD) / 9.16
(11.6)
(2SD) / 28.8
(9.98)
(2SD) / 16.4
(7.31)
(2SD) / 36.1
(9.19)
(2SD) / 0.08
(0.01)
(2SD) / 3.40
(1.02)
(2SD) / 1.00
(0.31)
(2SD) / 0.10
(0.09)
(2SD) / 18.3
(9.61)
(2SD)
*AMIS0362: Iron Ore (Fe = 54.34 ± 2.26 %), Hamersley Iron Ore Province, Western Australia / 0.26
(0.14)
(2SD) / 36.0
(9.0)
(2SD) / 0.09
(0.08)
(2SD) / 6.00
(9.89)
(2SD) / 16.3
(7.51)
(2SD) / 10.2
(5.33)
(2SD) / 10.6
(21.0)
(2SD) / 0.02
(0.01)
(2SD) / 0.82
(0.24)
(2SD) / 0.36
(0.10)
(2SD) / 0.13
(0.08)
(2SD) / 14.4
(28.9)
(2SD)
*High-grade iron ores with uncertified trace element concentrations (mean value)