) Landsat image of the Riachão Ring | |
| Impact crater/structure | |
|---|---|
| Confidence | Confirmed |
| Diameter | 4.5 km (2.8 mi) |
| Age | <200 Ma |
| Exposed | Yes |
| Drilled | No |
| Location | |
| Location | Parnaíba Basin |
| Coordinates | 7°43′S 46°39′W / 7.717°S 46.650°W |
| Country | Brazil |
| State | Maranhão |
)  Location of the crater in Brazil | |
Riachão Ring is a meteorite crater (astrobleme) in Brazil.
It is 4.5 kilometres (2.8 mi) in diameter and the age is estimated to be less than 200 million years (Jurassic or younger). The crater is exposed at the surface.[1]
References
- ^ "Riachão Ring". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.