25 research outputs found
On the estimation of the strength of meteoroids
Accepted versio
The production rate of small craters on Earth and the expected crater population in South America
Accepted versio
The impact rate of small asteroids on Earth.
Published versio
A possible tektite strewn field in the Argentinian pampa
Impact glass associated with 11 elongate depressions in the Pampean Plain of Argentina, north of the city of Rio Cuarto, was suggested to be proximal ejecta related to a highly oblique impact event. We have identified about 400 additional elongate features in the area that indicate an aeolian, rather than an impact, origin. We have also dated fragments of glass found at the Rio Cuarto depressions; the age is similar to that of glass recovered 800 kilometers to the southeast. This material may be tektite glass from an impact event around 0.48 million years ago, representing a new tektite strewn field.29655701109111