Lyons Sandstone, Denver Basin (16)
Comments on Geologic Parameters
16 Rock Mineralogy:
16 Table:
Sandstone composition determined from 11 thin sections from the Horsetooth reservoir. Composition base on about 200 point counts as is given as a percentage for the whole rock (Adams and Patton, 1979)
| SAMPLE | Sandstone | Grains | Cement | ||||||
| Grains | Pores | Cement | Quartz | Feldspar | Others | Chert | Calcite | Iron Oxide | |
| I23 | 91.1 | 5.4 | 3.5 | 99.5 | 0.0 | 0.5 | 43.0 | 0.0 | 57.0 |
| H21 | 89.1 | 0.4 | 10.1 | 96.1 | 2.6 | 1.3 | 43.0 | 49.0 | 8.0 |
| G18 | 94.5 | 4.5 | 1.0 | 97.9 | 0.5 | 1.6 | 50.0 | 0.0 | 50.0 |
| G16 | 84.1 | 1.5 | 14.4 | 98.2 | 1.8 | 0.0 | 26.0 | 62.0 | 14.0 |
| F15 | 66.0 | 12.5 | 21.5 | 99.2 | 0.8 | 0.0 | 58.0 | 28.0 | 14.0 |
| E14 | 81.6 | 4.2 | 14.2 | 94.3 | 4.6 | 1.1 | 36.0 | 32.0 | 32.0 |
| D13 | 75.7 | 2.5 | 21.8 | 94.8 | 5.2 | 0.0 | 23.0 | 63.0 | 14.0 |
| B8 | 85.2 | 0.5 | 14.3 | 96.5 | 1.2 | 2.3 | 59.0 | 41.0 | 0.0 |
| A5 | 97.8 | 0.0 | 2.2 | 98.4 | 1.1 | 0.5 | 50.0 | 50.0 | 0.0 |
| A3 | 76.3 | 6.9 | 16.8 | 96.8 | 1.9 | 1.3 | 38.0 | 59.0 | 0.0 |
| A1 | 79.5 | 9.5 | 11.0 | 90.6 | 8.2 | 1.2 | 63.0 | 32.0 | 0.0 |
16 Reference:
Adams and Patton, 1979
