 |
| Subject | Russian | English |
| O&G, geol. | реперный пласт | marker bed |
| geol. | реперный пласт песчаников | sandstone marker bed (a close-up of the sandstone marker bed in the above photo. ArcticFox) |
|
| Subject | Russian | English |
| O&G, geol. | реперный пласт | marker bed |
| geol. | реперный пласт песчаников | sandstone marker bed (a close-up of the sandstone marker bed in the above photo. ArcticFox) |