| 1 | Problem was, the salt attracted cattle. | |
| 2 | Some of the world's supply of salt is mined as rock salt. | |
| 3 | Some of the world's supply of salt is mined as rock salt. | |
| 4 | We have a shovel outside, and we usually have a supply of rock salt . | |
| 5 | Highstand system tracts are formed by thick-massive rock salts intercalated by thin layers of mudstone and sandstone. |
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