Results 11 to 20 of about 8,311,841 (367)
A Possible Second Large Subglacial Impact Crater in Northwest Greenland
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 +2 more sources
Impact crater morphology and the structure of Europa's ice shell [PDF]
, 2017 We performed numerical simulations of impact crater formation on Europa to infer the thickness and structure of its ice shell. The simulations were performed using iSALE to test both the conductive ice shell over ocean and the conductive lid over warm ...
Johnson, Brandon C. +1 more
core +2 more sources
Impact glasses from Belize represent tektites from the Pleistocene Pantasma impact crater in Nicaragua. [PDF]
Commun Earth Environ, 2021 Tektites are terrestrial impact-generated glasses that are ejected long distance (up to 11,000 km), share unique characteristics and have a poorly understood formation process. Only four tektite strewn-fields are known, and three of them are sourced from
Rochette P +12 more
europepmc +2 more sources
Lunar impact crater identification and age estimation with Chang'E data by deep and transfer learning. [PDF]
Nat Commun, 2020 Impact craters, which can be considered the lunar equivalent of fossils, are the most dominant lunar surface features and record the history of the Solar System. We address the problem of automatic crater detection and age estimation.
Yang C +9 more
europepmc +2 more sources
On the detection of the Wilkes Land impact crater
Earth, Planets and Space, 2018 The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial.
Jaroslav Klokočník +2 more
doaj +2 more sources
Probing the hydrothermal system of the Chicxulub impact crater. [PDF]
Sci Adv, 2020 The Chicxulub impact event generated a long-duration hydrothermal system suitable for microbial life. The ~180-km-diameter Chicxulub peak-ring crater and ~240-km multiring basin, produced by the impact that terminated the Cretaceous, is the largest ...
Kring DA +39 more
europepmc +2 more sources
Australasian impact crater buried under the Bolaven volcanic field, Southern Laos. [PDF]
Proc Natl Acad Sci U S A, 2020 Significance A field of black glassy blobs, strewn across about 20% of Earth’s Eastern Hemisphere, resulted from the impact of a large meteorite about 790,000 y ago.
Sieh K +10 more
europepmc +2 more sources
A large impact crater beneath Hiawatha Glacier in northwest Greenland. [PDF]
Sci Adv, 2018 Researchers present the first unambiguous discovery of a 31-km-wide impact crater buried beneath the Greenland Ice Sheet. We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland.
Kjær KH +21 more
europepmc +2 more sources
Meteoritics and Planetary Science, 2021 The number of newly discovered and confirmed impact structures on earth is growing continuously. In this review paper, the main attributes of 198 confirmed impact structures and 10 further structures, for which final confirmation based on the ...
T. Kenkmann
semanticscholar +1 more source
Moon Impact Crater Detection Using Nested Attention Mechanism Based UNet++
IEEE Access, 2021 Impact craters are the most prominent topographic feature on the lunar surface, which will play a significant role in constructing lunar bases and lunar surface activities in the future.
Yutong Jia, Lei Liu, Chenyang Zhang
semanticscholar +1 more source