Results 31 to 40 of about 12,178 (304)
Scientific Reports, 2022 Bullet impacts are a ubiquitous form of damage to the built environment resulting from armed conflicts. Bullet impacts into stone buildings result in surficial cratering, fracturing, and changes to material properties, such as permeability and surface ...
Oliver Campbell +3 more
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Special Crater Types on Vesta and Ceres as Revealed by Dawn [PDF]
, 2021 The exploration of two small planetary bodies by the Dawn mission revealed multifaced surfaces showing a diverse geology and surface features. Impact crater are the most distinctive features on these planetary bodies.
Krohn, Katrin, Katrin Krohn
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The self‐secondary crater population of the Hokusai crater on Mercury
Geophysical Research Letters, 2016 Whether or not self‐secondaries dominate small crater populations on continuous ejecta deposits and floors of fresh impact craters has long been a controversy. This issue potentially affects the age determination technique using crater statistics.
Zhiyong Xiao +2 more
doaj +1 more source
Evidence for life in the isotopic analysis of surface sulphates in the Haughton impact structure, and potential applications on Mars [PDF]
, 2012 The analysis of sulphur isotopic compositions in three sets of surface sulphate samples from the soil zone in the Haughton impact structure shows that they are distinct.
Izawa, M.R.M. +7 more
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Applied Sciences, 2020 Impact cratering experiments were performed on semi-infinite concrete targets with 7 mm-diameter 40CrNiMo steel long-rod projectiles at impact velocities ranging from 2117 m/s to 3086 m/s by using a two-stage combustion light-gas gun.
Yangyu Lu +6 more
doaj +1 more source
Automatic Mapping of Small Lunar Impact Craters Using LRO‐NAC Images
Earth and Space Science, 2022 Impact craters are the most common feature on the Moon’s surface. Crater size–frequency distributions provide critical insight into the timing of geological events, surface erosion rates, and impact fluxes.
J. H. Fairweather +5 more
doaj +1 more source
Scientific African, 2023 Impact cratering is an important aspect of planetary evolution. Geophysics plays a complementary role in identifying impact craters on Earth given the non-unique geological characteristics associated with such craters. The Bosumtwi impact crater in Ghana
Cyril D. Boateng +3 more
doaj +1 more source
The effect of the oceans on the terrestrial crater size-frequency distribution: Insight from numerical modeling [PDF]
, 2007 18.06.13 KB. Ok to add the published version to Spiral.
Davison, T. +5 more
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Impact cratering and the Oort Cloud [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 We calculate the expected flux profile of comets into the planetary system from the Oort cloud arising from Galactic tides and encounters with molecular clouds. We find that both periodic and sporadic bombardment episodes, with amplitudes an order of magnitude above background, occur on characteristic timescales ~25-35 Myr.
Wickramasinghe, J. T., Napier, W. M.
openaire +2 more sources
Ancient Impact and Aqueous Processes at Endeavour Crater, Mars [PDF]
, 2012 The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at similar-sized craters on Earth ...
McLennan, S. M. +40 more
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