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Cropmarks or crop marks are a means through which sub-surface archaeological, natural and recent features may be visible from the air or a vantage point on higher ground or a temporary platform. Such marks, along with parch marks, soil marks and frost marks, can reveal buried man-made structures that are not visible from the ground.
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marks crop visible differential growth archaeological conditions site cropmarks may soil buried also crops natural features air reveal ground water
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| grass | instance of | as the differential growth can become apparent in normally hardy species | 0.80 | text |
| Cropmark | related to Examples | Examples | 0.60 | section |
| Cropmark | related to Examples | Balbridie | 0.60 | section |
| Cropmark | related to Examples | Fetteresso | 0.60 | section |
| Cropmark | related to Examples | Scotland | 0.60 | section |
| Cropmark | related to Examples | In | 0.60 | section |
| Cropmark | related to Examples | Stonehenge | 0.60 | section |
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