Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Statistics of clay mineral types and contents in natural sandstone cores used in experiments.
| Number | Quartz (%) | Potassium feldspar (%) | Kaolinite (%) | Imon mixed layer (%) | Illite (%) | Chlorite (%) |
|---|---|---|---|---|---|---|
| A1 | 25.67 | 7.88 | 4.11 | 0.00 | 0.00 | 0.00 |
| A2 | 20.3 | 8.02 | 9.68 | 0.98 | 2.15 | 2.91 |
| A3 | 31.5 | 9.21 | 6.82 | 2.03 | 6.09 | 6.46 |
| A4 | 39.78 | 9.84 | 2.89 | 1.15 | 2.14 | 3.67 |
| A5 | 5.22 | 17.69 | 12.24 | 0.00 | 0.00 | 0.00 |
| A6 | 22.88 | 10.10 | 5.49 | 3.07 | 2.18 | 9.78 |
