Research Article
Pore Changes in Purple Mudstone Based on the Analysis of Dry-Wet Cycles Using Nuclear Magnetic Resonance
Table 1
X-ray diffraction (XRD) mineral composition analysis results.
| | Rock samples | Mineral composition | | X-ray powder diffraction (mineral composition) | Directional tablet (in terms of 100% of total clay mineral) | | Quartz (%) | Feldspar (%) | Calcite (%) | Hematite (%) | Total volume of clay minerals (%) | Montmorillonite (%) | Chlorite (%) | Illite (%) | Kaolinite (%) |
| | Purple mudstone sample no. 1 | 13 | 3 | 3 | 2 | 79 | 10 | 15 | 70 | 5 | | Purple mudstone sample no. 2 | 12 | 6 | 3 | 2 | 77 | 10 | 15 | 70 | 5 | | Purple mudstone sample no. 3 | 15 | 5 | 6 | 2 | 72 | 15 | 20 | 60 | 5 |
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