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Showing results for tags 'subglacial'.
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A Possible Second Large Subglacial Impact Crater in Northwest Greenland
Oxytropidoceras posted a topic in Fossil News
Scientist May Have Discovered Massive Crater Under Greenland Ice Sheet, Daily Beast, Feb. 2019 https://www.thedailybeast.com/scientist-may-have-discovered-massive-crater-under-greenland-ice-sheet Photos: Craters Hidden Beneath the Greenland Ice Sheet, Live Science, February 12, 2019 https://www.livescience.com/64755-photos-greenland-craters.html The open access paper is: Joseph A. MacGregor, William F. Bottke, Jr., Mark A. Fahnestock, Jeremy P. Harbeck, Kurt H. Kjær, John D. Paden, David E. Stillman, and Michael Studinger, 2019, A Possible Second Large Subglacial Impact Crater in Northwest Greenland First published: 11 February 2019 https://doi.org/10.1029/2018GL078126 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL078126 The paper states: "Based on the dated radiostratigraphy of the Greenland Ice Sheet, available for pre-2014 radar data only, the ice overlying the structure is at least 79 ka old (Figures 1e–1h; MacGregor et al., 2015)." Yours, Paul H. -
Giant canyons discovered in Antarctica By Jonathan Amos, BBC News http://www.bbc.com/news/science-environment-44245893 The open access paper is: Winter, K., Ross, N., Ferraccioli, F., Jordan, T.A., Corr, H.F., Forsberg, R., Matsuoka, K., Olesen, A.V. and Casal, T.G., 2018. Topographic steering of enhanced ice flow at the bottleneck between East and West Antarctica. Geophysical Research Letters. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL077504 https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2018GL077504 Yours, Paul H. "The past is never dead. It's not even past." William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)
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