WebJul 19, 2024 · Bed topography beneath the Hiawatha Glacier in northwestern Greenland (Kjær et al., 2024) In 2024, researchers discovered a massive, 19-mile-wide crater concealed beneath the Greenland ice sheet. A March 2024 study used argon-age dating of sand grains to determine that the meteorite impact occurred close to 58 million years ago … WebMay 20, 2024 · More information: Jonathan T. Bessette et al, Radar‐Sounding Characterization of the Subglacial Groundwater Table Beneath Hiawatha Glacier, Greenland, Geophysical Research Letters (2024). DOI ...
Controversial impact crater under Greenland’s ice is …
WebMar 11, 2024 · What did the Hiawatha asteroid do? The crater lies deep under the Greenland ice sheet making it inaccessible. Scientists instead took sand and melt rock samples formed by the erosion of the crater by a glacier to chemically assess its age. Two separate methods of dating, one using uranium and lead and the other using argon, were … WebMar 10, 2024 · Digging into the details — The Hiawatha crater was discovered in 2015 and revealed to the world in a 2024 paper. Today, it sits one kilometer below the Hiawatha glacier on Greenland. The... slytherin schaal
A Late Paleocene Age for Greenland’s Hiawatha Impact Structure …
WebNov 15, 2024 · An international team of scientists came together to unravel the mystery of Greenland’s Hiawatha crater. This video shows how that discovery came together. The video is public domain and along with other supporting visualizations can be downloaded at http://svs.gsfc.nasa.gov/12941. Credit: NASA/Jefferson Beck WebThe deep freeze: how the Greenland ice sheet changed life . Greenland’s former state made it a suitable location for many types of life that live in primarily warmer climates. Of … WebFeb 25, 2024 · According to the journal Science Advances, researchers discovered a 31km crater under Greenland's Hiawatha Glacier. The impact was dated to the Pleistocene, which according to Britannica, stretches from 2,588,000 years ago to ~11,700 years ago – quite a large range. slytherin scriptorium