| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4741856 | Physics of the Earth and Planetary Interiors | 2012 | 14 Pages |
Abstract
⺠Almost 200 circular structures exist in basalts and conglomerates in Patagonia, Argentina. ⺠New magnetic and electromagnetic surveys help constrain the origin of these structures. ⺠Magnetic anomalies and higher conductivity exist around the structure rims. ⺠These anomalies are associated with accumulations of basalt clasts. ⺠Evidence suggests that the circular structures are of extra-terrestrial impact origin.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
Claudia B. Prezzi, MarÃa Julia Orgeira, Rogelio D. Acevedo, Juan Federico Ponce, Oscar Martinez, Jorge O. Rabassa, Hugo Corbella, Carlos Vásquez, Mauricio González-Guillot, Ignacio SubÃas,