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Table 1 Average chemical composition£¨wt%£© of the minerals of
hydrothermal sedimentary rock
in Xiagou Formation, Lower Cretaceous in Qingxi Sag, Jiuquan Basin
Al2O3
SiO2
TiO2
CO2
¿óÎï ÑùÊý Na2O MgO
£¨SrO£© £¨SO £© K2O
CaO
£¨BaO£©
Cr2O3 MnO FeO NiO
£¨H2O£©
Ìú°×ÔÆʯ 6 0.16 11.11 £¨0.12£© 0.14 30.74 £¨0.13£©
0.36 10.18 47.25 ÄƳ¤Ê¯ 27 11.29 0.053 19.52
68.44 0.07 0.16 0.07 0.03 0.03 0.15 0.03
Öؾ§Ê¯ 12 0.22 0.01 £¨1.07£© (34.59) 0.05 0.06 £¨63.87£©
0.03 0.08
·½·Ðʯ 8 13.67 0.01 23.46 54.33 0.01 0.01 0.02
0.05 0.04 0.03 0.03
ʯӢ 3 0.02 0.02 0.39 98.84 0.05 0.07 0.11
0.03 0.01 0.03 0.01 0.02 µØ¿ªÊ¯ 18 0.09 0.44
37.15 43.45 0.47 0.11 0.02 0.04 0.02 0.11 0.03
(18.05)
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Table 2 Electron microprobe analytical date of chemical
compositions£¨wt%£© of sulphide minerals of hydrothermal sedimentary
rock in Xiagou Formation, Lower Cretaceous in Qingxi Sag, Jiuquan Basin
¿óÎï ÑùÊý As Se S Pb Bi Ag Sb Te Fe Co Ni
Cu Zn Au
»ÆÌú¿ó 2 1.21 0 50.98 0 0.11 0.06 0.01 0
47.07 0 0.003 0 0.001 0.02 ÉÁп¿ó 2 0 0 32.626
0 0 0 0 0.086 0.622 0.021 0.012 0.499 66.55
0 »ÆÍ¿ó 4 0.11 0.17 34.40 0.14 0.27 0.04 0 0.09
30.4 0.03 0.01 34.49 0 0
·½Ç¦¿ó 2 0 0.07 13.49 85.71 0.31 0.05 0 0
0.13 0.02 0.04 0.22 0.03 0
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