Section of the Strata at Grienlield Colliery, half a mile West of Aukland.
| Fs. | Y. | Ft. | In. | Fs. | Y. | Ft. | In. | |||||
| Soil | ─ | ─ | 1 | 9 | Brought forward | 21 | 1 | 2 | 2 | |||
| clay | ─ | 1 | ─ | ─ | Sill | ─ | ─ | 2 | ─ | |||
| Blue metal | 1 | ─ | ─ | ─ | Grey metal stone | 1 | 1 | 1 | 6 | |||
| Grey metal stone | 1 | 1 | ─ | ─ | Strong grey stone | ─ | ─ | 1 | 9 | |||
| Strong grey metal | ─ | ─ | 2 | ─ | Blue metal and metal stone | 3 | ─ | ─ | 6 | |||
| Blue metal | ─ | ─ | 1 | ─ | Dark blue metal | 1 | 1 | 2 | 6 | |||
| 1 | Coal | ─ | ─ | ─ | 9 | Black metal stone | ─ | ─ | 1 | ─ | ||
| Sill | ─ | ─ | 1 | 6 | 7 | Coal | ─ | ─ | ─ | 9 | ||
| Grey metal stone and blue metal | 1 | ─ | 1 | 6 | Band | ─ | ─ | ─ | 9 | |||
| Strong grey post | 1 | ─ | ─ | ─ | 8 | Crow-Coal | ─ | 1 | 1 | 6 | ||
| Blue metal | ─ | 1 | 2 | ─ | Grey sill | ─ | 1 | 2 | 6 | |||
| Black metal stone | ─ | 1 | ─ | ─ | White post | 1 | 1 | ─ | ─ | |||
| 2 | Coal | ─ | 1 | ─ | ─ | 9 | Coal | ─ | ─ | ─ | 9 | |
| Sill | 1 | ─ | ─ | ─ | Grey metal with brown scars | ─ | ─ | 1 | 9 | |||
| Grey metal stone | 1 | 1 | 2 | 9 | Grey metal stone with post | ─ | 1 | ─ | ─ | |||
| Grey post | ─ | 1 | ─ | 9 | Strong white post | 2 | 1 | ─ | 6 | |||
| Brown post | 3 | ─ | 2 | 6 | Blue metal | ─ | ─ | 2 | ─ | |||
| Grey metal | ─ | 1 | ─ | 6 | Strong grey metal | ─ | 1 | 2 | 9 | |||
| 3 | Coal | ─ | ─ | 1 | 6 | Blue metal | ─ | ─ | 2 | 6 | ||
| Sill | ─ | ─ | 1 | 3 | Strong grey metal stone | 1 | ─ | ─ | ─ | |||
| 4 | Coal | ─ | ─ | 1 | 6 | Blue metal | ─ | ─ | 1 | 9 | ||
| Sill | ─ | 1 | ─ | ─ | White post | 3 | ─ | 2 | 6 | |||
| Grey metal | 1 | ─ | 2 | 3 | Blue metal | 1 | 1 | 2 | 9 | |||
| Metal stone | 1 | ─ | ─ | ─ | Black swad | ─ | 1 | ─ | 6 | |||
| 5 | Coal | ─ | ─ | 1 | ─ | 10 | Main Coal | ─ | 1 | 2 | 10 | |
| Grey metal | 2 | ─ | 1 | ─ | ||||||||
| 6 | Coal | ─ | ─ | ─ | 8 | |||||||
| ───────── | ───────── | |||||||||||
| Carried forward | 21 | 1 | 2 | 2 | Total | 46 | ─ | 1 | 6 | |||
Section of the Strata at Cockfield Colliery.
| Fs. | Y. | Ft. | In. | Fs. | Y. | Ft. | In. | |||||
| Soil | ─ | ─ | 1 | ─ | Brought forward | 16 | ─ | 1 | ─ | |||
| Brown stony clay | 1 | ─ | ─ | ─ | Grey metal stone | 1 | ─ | ─ | 9 | |||
| Grey post | 2 | ─ | 1 | 9 | Whin | ─ | ─ | ─ | 10 | |||
| Brown and white post | 3 | 1 | 1 | 3 | Grey metal stone with girdles | 2 | 1 | 3 | 8 | |||
| Strong white post | ─ | ─ | 2 | 9 | Dark blue metal | ─ | ─ | 1 | ─ | |||
| White post | 2 | 1 | ─ | ─ | 2 | Coal | 1 | ─ | ─ | ─ | ||
| Grey metal stone | ─ | 1 | ─ | 6 | Grey sill | ─ | ─ | ─ | 9 | |||
| 1 | Coal | ─ | 1 | 2 | 9 | |||||||
| Grey sill | ─ | ─ | 2 | ─ | ||||||||
| Grey metal stone | 3 | 1 | 2 | ─ | ||||||||
| Black stone mixed with Coal | ─ | ─ | 2 | ─ | ||||||||
| ───────── | ───────── | |||||||||||
| Carried forward | 16 | ─ | 1 | ─ | Total | 22 | ─ | 1 | 6 | |||
