Guichi

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Location - China

Age (of protore) - 270 Ma

Original size - 0.5 million tonnes of Mn

References

Xie, J-C., Yang, X-Y., Du, J-G., and Xu, W., 2006, Geochemical characteristics of sedimentary manganese deposit of Guichi, Anhui Province, China: J Rare Earths v. 24, p. 374-380.

Xie, J., Sun, W., Du, J., Xu, W., Wu, L., Yang, X., Zhou, T., 2013,  Geochemical studies on Permian manganese deposits in Guichi, eastern China: implications for their origin and formative environments: Journal of Asian Earth Sciences, doi: http://dx.doi.org/10.1016/j.jseaes.2013.04.002

major elements - trace elements - rare-earth elements - REE normalized

Major Elements, oxide percent

 

 

 

%

%

%

%

%

%

%

%

%

%

%

MnO
Fe2O3t
SiO2
Al203
CaO
MgO
K2O
Na2O
P2O5
TiO2
LOI

Average ore grade material

 

29.4 4.3 46.7 6.6 0.4 0.3 0.4 0.3 0.3 0.2 9.1
GT2 oxide ore 40.0 3.52 39.4 4.29 0.48 0.25 0.65 0.12 0.33 0.15 7.95
GT6 oxide ore 30.5 5.34 43.6 6.69 0.13 0.18 0.19 0.04 0.3 0.24 11.2
GT5 oxide ore 24.6 3.51 57.9 3.86 0.55 0.42 0.58 0.12 0.25 0.16 6.49
GT9 oxide ore 22.4 4.82 45.9 11.4 0.37 0.51 0.05 1.09 0.13 0.24 10.7
GP3 carbonate ore 20.7 0.56 6.52 0.46 33.3 2.92 0.08 0.03 0.15 0.01 34.2
Tang2 oxide 11.7 0.61
GT3 Mn-bearing siliceous shale 11.3 8.66 63.4 7.02 0.85 0.8 1.17 0.24 0.19 0.34 5.9
GT1 Mn-bearing siliceous shale 10.0 3.87 74.7 5.18 0.31 0.31 0.55 0.05 0.12 0.19 4.36
GP4 Mn-bearing limestone 8.9 1.53 24.5 1.83 30.1 2.51 0.26 0.03 0.77 0.04 29
GT7 Mn-bearing siliceous shale 7.6 3.32 77.3 4.89 0.15 0.45 0.02 0.94 0.07 0.19 4.41
GP6 Mn-bearing limestone 4.6 0.48 5.96 0.58 46.8 1.22 0.11 0.06 0.29 0.02 39
GT4 Mn-bearing shale 4.6 3.52 81.8 4.74 0.3 0.36 0.45 0.05 0.14 0.17 3.34
GH3 Mn-bearing limestone 4.2 1.07 30.3 1.35 30.9 2.01 0.24 0.04 0.49 0.08 28.5
GH4 Mn-bearing limestone 3.9 1.18 39.9 1.08 24.8 3.14 0.16 0.04 0.34 0.04 24.8
Tang3 oxide 3.28 0.32
GH5 silicalite  2.9 4.77 53.6 3.8 12.6 1.08 0.51 0.05 0.51 0.13 19.5
GH1 Mn-bearing limestone 2.8 3.07 32.9 4.2 26.8 1.45 0.86 0.05 0.38 0.18 26.6
GH2 Mn-bearing limestone 1.8 3.64 37.7 3.03 25.6 1.3 0.49 0.05 0.3 0.14 25.2
Tang4 oxide 1.16 0.28
GT8 siliceous shale 0.8 9.12 74.2 8.34 0.05 0.75 0.04 1.6 0.23 0.34 3.92
GP5 silicalite  0.2 0.49 95 0.9 0.49 0.09 0.11 0.04 0.09 0.03 1.88
GP1 limestone  0.1 0.55 14.8 1.09 44.7 0.54 0.14 0.03 0.03 0.03 37.2
GP2 silicalite  0.0 0.29 84.7 0.28 7.08 0.15 0.05 0.03 0.02 0.01 6.84
GH6 silicalite  0.0 0.57 86.2 2.55 0.23 0.17 0.36 0.04 0.03 0.11 8.97

blank or nr = not reported; bd = below detection

Trace elements, ppm

 

 

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

 

As
Ba
Cd
Co
Cr
Cu
Mo
Nb
Ni
Pb
Rb
Sc
Sr
Th
U
V
Y
Zn
Zr

avg ore grade

nr 343 nr 16 145 40 24 9 684 19 49 9 1804 nr nr 583 55 673 nr
GT2
390 13.8 171 49.3 34 6.1 663 12.2 38.6 6.78 2167 973 67.7 854
GT6
412 15.8 157 39.5 18 9.7 748 22.9 57.9 8.94 1962 657 59.3 573
GT5
177 22.9 147 30.9 14.2 4.7 486 8.9 39 6.39 1555 432 26.2 444
GT9
391 12 106 42 28.7 14.8 837 32.1 61 12.7 1531 270 64.8 821
GP3
28.7   1 35.5 20.1 1.19 2.5 129 17 3 1.15 2204     104 12.3 82.3
Tang2
339 1 115 40 6 9 203 14 57 341 350 38 437
GT3
150 47.3 210 44.1 60.2 13 391 28 64.3 8.16 132 588 41.7 227
GT1
172 7.5 148 32.5 34 6.5 437 14.2 40.1 6.06 717 254 23.9 473
GP4
37.7 1 37.6 27.5 8.99 3.9 84.5 19.3 6.9 1.8 1950 104 23.9 133
GT7
392 14.3 64.4 54.1 18.3 11.8 188 30.6 43 7.75 1555 102 26.5 222
GP6   29.7 1.2 40 31.9 1.54 1 36.8 13.5 3 0.95 3360 49.3 8.15 51.5
GT4   153 17.6 97 32.3 4 5.3 252 12.2 36.9 6.8 454 173 18.3 192
GH3   33.5 3.4 29.2 24.2 18.2 5.4 74.9 14.4 8.2 2.6 1712 86.3 22.2 102
GH4   22.3 2.6 31.9 25.5 9.28 2.5 95.7 17.8 5.3 1.25 1203 79.2 12.2 151
Tang3   593 12 194 63 3 15 104 27 106 210 299 41 157
GH5   41.8 13.2 87.6 37.5 41.1 8.9 223 18.4 27.1 5.5 563 174 40.2 248
GH1   53.9 6.6 85.6 33.5 7.08 7.1 102 19 34.6 4.3 1350 77.3 18.4 115
GH2   41.8 6.6 82.7 31.6 9.75 5.8 63.3 23.1 22 4.3 1634 71.5 19.7 97.4
Tang4   422 14 168 43 2 12 62 22 80 126 190 22 105
GT8   162 15.6 476 43.7 67.4 27.4 228 36.5 83.8 9.95 163 318 29.4 257
GP5   52.6 2.9 173 14.2 8.99 3 34.3 9 7.9 1.4 71.8 71.4 8.3 35.6
GP1   5 1.4 69.1 29.1 5.51 2.8 22.3 12.7 3 1.5 1708 143 9.1 41
GP2   15 1.4 28 9.3 5 1.7 8.8 8.1 4.3 1 288 57.4 6.1 11.4
GH6   67.2 2.5 289 10.5 20.1 5.1 12.1 7 20 3 47 486 6.8 9.5

blank or nr = not reported; bd = below detection

                                 

Rare-earth elements, ppm

 

Sample
La
Ce
Pr
Nd
Sm
Eu
Gd
Tb
Dy 
Ho 
Er 
Tm 
Yb
Lu
avg ore 47.18 45.53 9.90 38.53 8.56 2.03 9.08 1.28 7.10 1.52 3.82 0.57 3.20 0.47
GT2 58.4 60.9 12.5 49.8 11.3 2.61 11.7 1.7 9.49 2.05 5.33 0.71 3.89 0.6
GT6 57.2 50.4 10.3 43.4 8.94 2.24 9.75 1.38 8.11 1.72 4.39 0.64 3.69 0.54
GT5 29.4 27.6 5.01 20.9 4.15 1.09 4.68 0.64 3.83 0.83 2.01 0.32 1.76 0.28
GT9 43.7 43.2 11.8 40 9.83 2.18 10.2 1.39 6.98 1.46 3.56 0.59 3.44 0.47
GP3 13.5 9.4 1.92 6.05 1.26 0.29 2.09 0.31 1.69 0.41 0.96 0.14 1.14 0.12
Tang2 40.4 44.2 8.23 31.3 7.07 1.61 6.69 0.98 5.5 1.26 3.29 0.49 2.81 0.45
GT3 8.45 31.6 6.51 1.37 6.52 0.96 5.15 1.14 2.95 0.44 2.45 0.33 175 0.68
GT1 29.3 34.9 5.79 21.3 4.51 0.99 4.38 0.65 3.56 0.79 2.17 0.33 1.83 0.32
GP4 18.9 17.8 3.01 10.1 2.39 0.42 3.18 0.5 2.84 0.61 1.74 0.24 1.62 0.24
GT7 22 48.1 5.49 21 4.6 1.06 4.24 0.62 3.4 0.74 2.07 0.31 2.1 0.29
GP6 7.5 6 1.2 4.65 0.98 0.19 1.6 0.18 0.98 0.25 0.66 0.12 0.53 0.08
GT4 24.6 31.4 4.77 18.5 4.06 0.87 4.95 0.52 2.88 0.62 1.62 0.24 1.45 0.2
GH3 19 18.5 3.43 11.2 2.52 0.55 3.01 0.38 2.39 0.5 1.44 0.21 1.23 0.18
GH4 13.2 10 2.03 5.8 1.32 0.3 2.08 0.3 1.53 0.31 0.92 0.15 0.76 0.11
Tang3 64.5 76.5 13.4 53.1 11.4 2.34 10.5 1.4 7.6 1.54 3.9 0.49 2.67 0.42
GH5 35.3 36.6 6.28 22 5.28 1.06 5.92 0.82 4.97 1.06 2.82 0.4 2.3 0.35
GH1 18.3 28.5 4.24 15.1 2.48 0.55 3.39 0.46 2.51 0.57 1.49 0.25 1.38 0.22
GH2 19.9 27.7 4.1 14 2.52 0.54 3.06 0.39 2.31 0.49 1.36 0.22 1.25 0.19
Tang4 39.2 56.4 8.79 31.7 7.29 1.46 6.56 0.82 4.5 9 2.34 0.34 1.78 0.28
GT8 25.2 22.5 3.93 12.8 2.36 0.58 2.66 0.42 2.53 0.7 2.06 0.33 1.98 0.33
GP5 5.1 5.3 1.04 4.1 0.95 0.19 1.21 0.12 0.91 0.2 0.56 0.1 0.55 0.08
GP1 14.1 16.5 1.69 8.4 1.3 0.28 2.18 0.3 1.3 0.29 0.93 0.18 0.75 0.1
GP2 5.3 5.3 1.33 4.2 0.69 0.18 1.47 0.15 0.79 0.17 0.5 0.09 0.42 0.07
GH6 9.4 14.4 2.27 7.9 1.18 0.18 0.85 0.1 0.86 0.19 0.76 0.11 0.78 0.1
                             

Rare-earth elements,

normalized to chondritic values of Taylor & McLennan (1992)

Sample
LaN
CeN
PrN
NdN
SmN
EuN
GdN
TbN
YbN
Ce/Ce*
Eu/Eu*
LaN/YbN
avg carb 128.54 47.57 72.28 54.18 37.03 23.33 29.68 22.03 12.88 0.494 0.704 9.978 0.5788 0.5347 8.8549
GT2 159.13 63.64 91.24 70.04 48.92 30.00 38.24 29.31 38.27 0.528 0.694 4.158 0.5598 0.712 7.7549
GT6 155.86 52.66 75.18 61.04 38.70 25.75 31.86 23.79 32.70 0.487 0.733 4.766
GT5 80.11 28.84 36.57 29.40 17.97 12.53 15.29 11.03 15.44 0.533 0.756 5.187
GT9 119.07 45.14 86.13 56.26 42.55 25.06 33.33 23.97 28.15 0.446 0.665 4.231
GP3 36.78 9.82 14.01 8.51 5.45 3.33 6.83 5.34 6.81 0.433 0.546 5.398
Tang2 110.08 46.19 60.07 44.02 30.61 18.51 21.86 16.90 22.18 0.568 0.715 4.964
GT3 23.02 33.02 47.52 1.93 28.23 11.03 16.83 19.66 11.90 0.998 0.506 1.936
GT1 79.84 36.47 42.26 29.96 19.52 11.38 14.31 11.21 14.35 0.628 0.681 5.562
GP4 51.50 18.60 21.97 14.21 10.35 4.83 10.39 8.62 11.45 0.553 0.466 4.497
GT7 59.95 50.26 40.07 29.54 19.91 12.18 13.86 10.69 13.71 1.025 0.733 4.372
GP6 20.44 6.27 8.76 6.54 4.24 2.18 5.23 3.10 3.95 0.469 0.464 5.172
GT4 67.03 32.81 34.82 26.02 17.58 10.00 16.18 8.97 11.61 0.679 0.593 5.772      
GH3 51.77 19.33 25.04 15.75 10.91 6.32 9.84 6.55 9.64 0.537 0.610 5.372      
GH4 35.97 10.45 14.82 8.16 5.71 3.45 6.80 5.17 6.17 0.453 0.553 5.830      
Tang3 175.75 79.94 97.81 74.68 49.35 26.90 34.31 24.14 30.65 0.610 0.654 5.735      
GH5 96.19 38.24 45.84 30.94 22.86 12.18 19.35 14.14 20.04 0.576 0.579 4.800      
GH1 49.86 29.78 30.95 21.24 10.74 6.32 11.08 7.93 10.12 0.758 0.580 4.927      
GH2 54.22 28.94 29.93 19.69 10.91 6.21 10.00 6.72 9.31 0.719 0.594 5.821      
Tang4 106.81 58.93 64.16 44.59 31.56 16.78 21.44 14.14 18.15 0.712 0.645 5.887      
GT8 68.66 23.51 28.69 18.00 10.22 6.67 8.69 7.24 10.20 0.530 0.707 6.731      
GP5 13.90 5.54 7.59 5.77 4.11 2.18 3.95 2.07 3.67 0.539 0.542 3.787      
GP1 38.42 17.24 12.34 11.81 5.63 3.22 7.12 5.17 5.24 0.792 0.508 7.329      
GP2 14.44 5.54 9.71 5.91 2.99 2.07 4.80 2.59 3.19 0.468 0.546 4.534      
GH6 25.61 15.05 16.57 11.11 5.11 2.07 2.78 1.72 3.47 0.730 0.549 7.386      
                               

Isotopes

  cct rhod cct cct rhod rhod      
Sample
% Ccarb % Corg δ13Ccarb pdb δ13Ccarb pdb δ13Corg δ18Ocarb pdb δ18Ocarb smow δ18Ocarb pdb δ18Ocarb smow % Stotal    
avg ore    
GT2    
GT6    
GT5 0.01    
GT9 1.0 -3.4 27.4 0.42    
GP3    
Tang2    
GT3    
GT1 0.06    
GP4 0.01    
GT7 0.25    
GP6    
GT4 -4.1 -9.9 20.7 0.62    
GH3 0.65    
GH4 2.3 -6.8 23.9    
Tang3 0.6 -7.3 23.4 3.33    
GH5 1.39    
GH1 2.8 -8.5 22.1 2.01    
GH2 5 -7.9 22.8    
Tang4 0.01    
GT8 0.09    
GP5 3.4 -8.6 22 0.41    
GP1 0.11    
GP2 0.43    
GH6