Results 11 to 20 of about 12,178 (304)
A Possible Second Large Subglacial Impact Crater in Northwest Greenland [PDF]
Geophysical Research Letters, 2019 Following the discovery of the Hiawatha impact crater beneath the northwest margin of the Greenland Ice Sheet, we explored satellite and aerogeophysical data in search of additional such craters.
Joseph A. MacGregor +7 more
doaj +3 more sources
Lonar Impact Crater, India: the Best-Preserved Terrestrial Hypervelocity Impact Crater in a Basaltic Terrain as a Potential Global Geopark [PDF]
Geoheritage, 2022 Lonar Impact Crater is a simple meteorite impact crater carved out on the ~ 65 Ma old Deccan tholeiitic flood basalts. The crater, though scoured in a basaltic terrain, is still preserved in its most pristine form, with a central crater lake.
Saranya R Chandran +2 more
exaly +3 more sources
Model Age Derivation of Large Martian Impact Craters, Using Automatic Crater Counting Methods
Earth 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 +2 more sources
Insights into Sudbury’s deep architecture: a revised geodynamic model for Earth’s largest ore-bearing impact structure [PDF]
Scientific ReportsImpact cratering has played a fundamental role in Earth’s geological history and has resulted in the formation of some of the world’s most productive economic mineral deposits.
Rasmus Haugaard +12 more
doaj +2 more sources
Discovery of the Hailin impact crater in northeast China
Matter and Radiation at ExtremesA uniquely shaped impact structure, the Hailin impact crater, has been discovered in northeast China. The crater was formed on a granodiorite hillside and is an oval depression with asymmetric rim height and a maximum diameter of 1360 m.
Feng Yin +3 more
doaj +2 more sources
Australasian impact crater buried under the Bolaven volcanic field, Southern Laos [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2020 Kerry Sieh +2 more
exaly +2 more sources
Projectile Velocity and Crater Formation in Water
International Scholastic Journal of Science, 2010 The relationship between the velocity of impact and maximum crater diameter was found for two steel balls dropped into water using 300 fps video. The maximum diameter of the crater was found to be proportional to the impact velocity and independent of ...
Pravitra Chaikulngamdee +3 more
doaj +1 more source
Rock 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
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Impact crater degradation, Oxia Planum, Mars
Journal 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
Complex Crater Formation by Oblique Impacts on the Earth and Moon
Geophysical Research Letters, 2022 Almost all meteorite impacts occur at oblique incidence angles, but the effect of impact angle on crater size is not well understood, especially for large craters.
T. M. Davison, G. S. Collins
doaj +1 more source