Research Article
The Distribution and Origin of Carbonate Cements in Deep-Buried Sandstones in the Central Junggar Basin, Northwest China
Table 4
Electron microprobe analysis of residual mineral contents in secondary pores of wells in studied area.
| | Well | Position | Content/% | | SiO2 | TiO2 | Al2O3 | FeO | MnO | MgO | CaO | Na2O | K2O | Cr2O3 | Total |
| | SH1 | a | 63.55 | 0.00 | 17.89 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 16.10 | 0.00 | 98.54 | | b | 0.16 | 0.00 | 0.03 | 0.03 | 0.00 | 0.40 | 53.50 | 0.00 | 0.00 | 0.00 | 54.12 |
| | ZH1 | c | 68.13 | 0.00 | 19.57 | 0.05 | 0.00 | 0.00 | 0.00 | 12.03 | 0.02 | 0.00 | 99.80 | | d | 64.13 | 0.03 | 18.02 | 0.05 | 0.00 | 0.00 | 0.00 | 0.31 | 16.65 | 0.00 | 99.19 |
| | SH2 | e | 51.02 | 0.00 | 18.75 | 0.05 | 0.00 | 0.00 | 0.31 | 8.17 | 0.00 | 0.00 | 78.30 | | f | 0.00 | 0.00 | 0.00 | 0.59 | 0.62 | 0.44 | 60.92 | 0.00 | 0.00 | 0.00 | 62.57 | | g | 0.08 | 0.00 | 0.00 | 58.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 58.19 |
| Y1
| h | 0.81 | 0.00 | 0.13 | 1.49 | 1.34 | 0.17 | 52.45 | 0.00 | 0.00 | 0.02 | 56.41 | | i | 64.73 | 0.00 | 18.32 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 16.69 | 0.00 | 100.04 | | j | 70.41 | 0.00 | 20.46 | 0.10 | 0.00 | 0.00 | 0.16 | 10.48 | 0.00 | 0.00 | 101.61 |
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