Campo del Cielo modeling and comparison with observations: II. Funnels and craters

The Campo del Cielo impact structure exhibits several penetration funnels and impact craters. Here, we model the formation of these funnels with pre‐impact conditions consistent with the results of meteoroid entry models. We study vertical impacts to find the dependence of funnel geometry (depth, di...

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Bibliographic Details
Published in:Meteoritics & planetary science 2023-12, Vol.58 (12), p.1832-1847
Main Authors: Luther, R., Schmalen, A., Artemieva, N.
Format: Article
Language:English
Subjects:
Atmospheric correction
Atmospheric models
Breccia
Craters
Downrange
Elongation
Excavation
Funnels
Grooves
Impact angle
Impact velocity
Loess
Meteoroids
Modelling
Porosity
Projectiles
Straight lines
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Summary:The Campo del Cielo impact structure exhibits several penetration funnels and impact craters. Here, we model the formation of these funnels with pre‐impact conditions consistent with the results of meteoroid entry models. We study vertical impacts to find the dependence of funnel geometry (depth, diameter) on impact velocity and target porosity. At velocities above 1 km s−1, we observe strong deformation of the projectile and transformation of funnels into regular impact craters. We also use 3‐D impact models to study oblique impacts and find that in the case of impact angles
ISSN:1086-9379
1945-5100
DOI:10.1111/maps.14104