| Answer | Crossword Clue |
|---|---|
| sials | SIAL, a type of rock formation |
| sialic | pertaining to sial (a type of rock formation) |
| syncline | a type of rock formation |
| rimrock | a type of rock formation |
| nappe | a type of rock formation |
| sial | a type of rock formation |
| inlier | a type of rock formation |
| isocline | a type of rock formation |
| isoclines | ISOCLINE, a type of rock formation |
| inliers | INLIER, a type of rock formation |
| synclines | SYNCLINE, a type of rock formation |
| rimrocks | RIMROCK, a type of rock formation |
| nappes | NAPPE, a type of rock formation |
| INLIER | Type of rock formation. |
