| Similarity | Rank | |
|---|---|---|
| hercynian | 0.867 | 39211 |
| glaciation | 0.855 | 30769 |
| craton | 0.852 | 72921 |
| cenozoic | 0.848 | 76640 |
| volcanism | 0.846 | 33218 |
| metamorphism | 0.840 | 50754 |
| stephanian | 0.835 | 72599 |
| eocene | 0.834 | 39949 |
| archaean | 0.832 | 68387 |
| oligocene | 0.830 | 52381 |
| variscan | 0.829 | 29028 |
| pliocene | 0.827 | 49115 |
| crustal | 0.824 | 22495 |
| pangaea | 0.823 | 62891 |
| pleistocene | 0.822 | 19850 |
| cainozoic | 0.822 | 58574 |
| permian | 0.821 | 18568 |
| subduction | 0.819 | 20060 |
| ice-sheet | 0.818 | 47735 |
| orogenic | 0.818 | 50387 |
| tectonised | 0.815 | 99784 |
| coalification | 0.814 | 35606 |
| palaeozoic | 0.814 | 17635 |
| upwarp | 0.814 | 69838 |
| facies | 0.812 | 23456 |