Results 21 to 30 of about 635 (114)
Remote SensingSurface unloading due to impact cratering results in lava filling the crater floor. Elevation differences in the crater floor, a common geological phenomenon on the Moon, represent direct evidence of cratering processes.
Feng Liu, Yuanxu Ma, Guanghao Ha
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Experimental Investigation of the Crater Caused by Hypervelocity Rod Projectile Impacting on Rocks
Shock and Vibration, 2020 To investigate the cratering effects of hypervelocity rod projectile impacting on rocks, a two-stage light gas gun was used to carry out 10 groups of small-scale experiments, whose velocity ranges from 1.5 km/s to 4.1 km/s.
Yanyu Qiu +6 more
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Straight impact crater rim segments on Mercury
Journal of MapsThe formation of straight impact crater rims is widely accepted to be influenced by preexisting lithospheric structure. We investigate the distribution and orientations of straight crater rim segments across Mercury. We devise a mapping workflow aimed at
Işık S. Yazıcı +3 more
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Some Studies of Terrestrial Impact Cratering Rate
Open Astronomy, 2011 In 1984, a 28.4 Myr periodicity was detected in the ages of terrestrial impact craters and a 26 Myr periodicity in the epochs of mass extinctions of species.
Jetsu L.
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Holocene impact craters on Earth
Miscellanea Geographica: Regional Studies on Development, 2023 Impact craters are formed by collisions of cosmic bodies moving with hypervelocity. The formation of these features is not restricted to the distant geological past; new structures are constantly being created and at least 13 confirmed impact craters and
Losiak Anna
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Terrestrial Impact Cratering Chronology II: Periodicity Analysis with the 2002 Database [PDF]
Journal of Astronomy and Space Sciences, 2003 We examined the hypothesis that the crater formation rate exhibits periodicity, employing data sets of Grieve (1991), Moon et al. (2001), and the Earth Impact Database (2002; DB02).
Hong-Kyu Moon +2 more
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REMOTE SENSING OBSERVATIONS AND NUMERICAL SIMULATION FOR MARTIAN LAYERED EJECTA CRATERS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 To understand past Martian climates, it is important to know the distribution and nature of water ice on Mars. Impact craters are widely used ubiquitous indicators for the presence of subsurface water or ice on Mars.
L. Li, Z. Yue, C. Zhang, D. Li
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Engineering Reports, 2020 We present a simple and efficient implementation of a viscous creep rheology based on diffusion creep, dislocation creep, and the Peierls mechanism in conjunction with an elasto‐plastic rheology model into a shock‐physics code, the iSALE impact code. Our
Dirk Elbeshausen, Henry J. Melosh
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Acta Polytechnica, 2018 A series of cratering experiments were performed where the response of the Ultra-High-Performance Fibre-Reinforced Concretes with various fibre volume fractions to the high- velocity projectile impact loading was investigated.
Sebastjan Kravanja, Radoslav Sovják
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Two Seismic Events from InSight Confirmed as New Impacts on Mars
The Planetary Science Journal, 2023 We report confirmed impact sources for two seismic events on Mars detected by the NASA InSight mission. These events have been positively associated with fresh impact craters identified from orbital images, which match predicted locations and sizes to ...
Ingrid J. Daubar +17 more
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