Fried Egg structure
  Location in the Atlantic Ocean | |
| Impact crater/structure | |
|---|---|
| Confidence | Potential[1] |
| Diameter | 3 km (1.9 mi) |
| Depth | 110 m (360 ft) |
| Rise | 300 m (980 ft) |
| Age | <17 Ma Neogene |
| Exposed | No |
| Drilled | No |
| Location | |
| Coordinates | 36°48′N 26°30′W / 36.800°N 26.500°WCoordinates: 36°48′N 26°30′W / 36.800°N 26.500°W Fatal error: The format of the coordinate could not be determined. Parsing failed. [1] |
| Country | Portugal |
| State | Azores |
The Fried Egg is an informal name for an underwater geomorphic structure in the North Atlantic that is a suspected impact crater. This structure is at a depth of 2 kilometres (1.2 miles) and is approximately 150 km (93 mi) south of the Azores archipelago.[2] It consists of a dome 300 meters (980 feet) high and 3 km (1.9 mi) in diameter that lies within a larger, roughly circular depression 110 m (360 ft) deep and 6 km (3.7 mi) in diameter. This morphology is the basis for its informal name.[3] Images accompanying media reports show a well-defined rim surrounding the depression. These images also show a second, smaller, circular depression with a central peak adjacent to the Fried Egg structure.[2][4]
This structure is less than 17 million years old, constrained by the age of the ocean floor it is part of. Based on its morphology and the lack of apparent lava flows in the multibeam echosounder bathymetric data, it is hypothesized to be a possible oceanic impact crater.[3]
Reports indicate that the Fried Egg structure was first identified using data from a 2008 multibeam echosounder hydrographic survey. Its presence was confirmed during a research cruise from September to November 2009. Gravity and magnetic data were also acquired during the September 2009 cruise, and a third expedition using remotely operated underwater vehicles to collect samples from the structure was planned.[2]
See also
References
- ↑ 1.0 1.1 Mikheeva, 2017
- ↑ 2.0 2.1 2.2 Amos, J (18 December 2009). "'Fried Egg' may be impact crater". BBC News.
- ↑ 3.0 3.1 Dias et al., 2009
- ↑ "Fried Egg" 1 & 2 location
Bibliography
- Dias, F.C.; Lourenco, N.; Lobo, A.; Santos de Campos, A.; Pinto de Abreu, M. (2009). ""Fried Egg": An Oceanic Impact Crater in the Mid-Atlantic?". American Geophysical Union, Fall Meeting: P43B. Bibcode:2009AGUFM.P43B1435D.
- Mikheeva, Anna (2017). The Complete Catalog of the Earth's Impact structures. Russian Academy of Sciences. p. 1. Retrieved 2019-03-14. Search this book on
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