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Model Age Derivation of Large Martian Impact Craters, Using Automatic Crater Counting Methods [PDF]

open access: goldEarth and Space Science, 2021
Determining when an impact crater formed is a complex and tedious task. However, this knowledge is crucial to understanding the geological history of planetary bodies and, more specifically, gives information on erosion rate measurements, meteorite ...
A. Lagain   +5 more
doaj   +3 more sources

Hydrothermal activity generated by impact melt emplacement on the rim of Ritchey crater, Mars [PDF]

open access: yesNature Communications
Impact-induced hydrothermal systems have the potential to sustain long-lived aqueous environments throughout the history of Mars, yet their nature and distribution are not well-understood.
Lingqi Zeng, Briony H. N. Horgan
doaj   +2 more sources

Experimental study on mesoscopic damage and fragmentation characteristics of hard rock under repeated particle impacts

open access: yesRock and Soil Mechanics, 2022
Particle impact, a new drilling technology, has been applied in drilling and gas and oil exploitation. Also, it is considerably promising as an assisting rock-breaking method for the excavation of tunnels in extremely hard rocks.
JU Ming-he   +5 more
doaj   +1 more source

Impact crater degradation, Oxia Planum, Mars

open access: yesJournal of Maps, 2021
The main goal of the European Space Agency (ESA) and Roscosmos ExoMars rover mission is to collect samples from the near-subsurface of Mars. The rover will look for any physical or chemical evidence of ancient life in the near subsurface.
Amelie L. Roberts   +2 more
doaj   +1 more source

Numerical Modeling of an Asteroid Impact on Earth: Matching Field Observations at the Chicxulub Crater Using the Distinct Element Method (DEM)

open access: yesGeosciences, 2023
In recent years, an international consortium of research organizations conducted investigations at the Chicxulub Crater in Yucatan, Mexico, to better understand the crater’s formation mechanisms and the effects produced by the impact of the asteroid that
Tam N.-M. Duong   +3 more
doaj   +1 more source

Evaluation of Geomorphological Evidences for Possible Impact Crater of Zirouki in Sistan and Baluchestan, SE Iran [PDF]

open access: yesمخاطرات محیط طبیعی, 2014
Despite the extensive studies on geomorphological phenomena in Iran, since investigation of meteorite impact craters h not been considered. Based on both remote sensing technique and field work we have recognized the circular structure of Zirouki crater ...
Mohammadreza Mansouri Daneshvar   +1 more
doaj   +1 more source

Experimental Investigation of the Crater Caused by Hypervelocity Rod Projectile Impacting on Rocks

open access: yesShock 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
doaj   +1 more source

Particle size distributions inside and around the artificial crater produced by the Hayabusa2 impact experiment on Ryugu

open access: yesEarth, 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

Crater formation during raindrop impact on sand [PDF]

open access: yes, 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

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