| Publication Type: | Journal Article |
| Year of Publication: | 1886 |
| Authors: | M. P Duncan |
| Journal: | Quarterly Journal of the Geological Society |
| Volume: | 42 |
| Pagination: | 101–112 |
| URL: | http://dx.doi.org/10.1144/GSL.JGS.1886.042.01-04.15 |
| Publication Type: | Journal Article |
| Year of Publication: | 1886 |
| Authors: | M. P Duncan |
| Journal: | Quarterly Journal of the Geological Society |
| Volume: | 42 |
| Pagination: | 101–112 |
| URL: | http://dx.doi.org/10.1144/GSL.JGS.1886.042.01-04.15 |