Results 11 to 20 of about 62,716 (304)
Crater formation during raindrop impact on sand [PDF]
, 2017 After a raindrop impacts on a granular bed, a crater is formed as both drop and target deform. After an initial, transient, phase in which the maximum crater depth is reached, the crater broadens outwards until a final steady shape is attained.
de Jong, Rianne +2 more
core +4 more sources
Polygonal impact craters on Ganymede
Meteoritics & Planetary Science, 2023 AbstractPolygonal impact craters (PICs) are unique geological features observed on various planetary bodies and constitute a small percentage of the impact crater population. This study focuses on PICs on Ganymede, where no such craters have been investigated so far. Here we present the distribution of PICs, examine their morphological characteristics,
Namitha Rose Baby +3 more
openaire +6 more sources
Earth, Planets and Space, 2022 Japanese Hayabusa2 spacecraft has successfully carried out an impact experiment using a small carry-on impactor (SCI) on an asteroid (162173) Ryugu. We examine the size distribution of particles inside and outside an artificial impact crater (the SCI ...
K. Ogawa +30 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
Expectations for the Deep Impact collision from cometary nuclei modelling [PDF]
, 2005 Using the cometary nucleus model developed by Espinasse et al. (1991), we calculate the thermodynamical evolution of Comet 9P/Tempel 1 over a period of 360 years.
Klinger, Jurgen +3 more
core +6 more sources
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
doaj +1 more source
On the importance of self-secondaries
Geoscience Letters, 2018 Self-secondaries are secondary craters that are formed on both the continuous ejecta deposits and interior of the parent crater. The possible existence of self-secondaries was proposed in the late 1960s, but their identity, formation mechanism, and ...
Zhiyong Xiao
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
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
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