Impact melt rocks from the Late Paleocene Hiawatha impact structure, northwest Greenland

Autor: William R. Hyde, Adam A. Garde, Nynke Keulen, Sebastian N. Malkki, Steven J. Jaret, Tod Waight, Pierre Beck, Iain McDonald, Nicolaj K. Larsen

Publikováno v: Hyde, W R, Garde, A A, Keulen, N, Malkki, S N, Jaret, S J, Waight, T, Beck, P, McDonald, I & Larsen, N K 2023, ' Impact melt rocks from the Late Paleocene Hiawatha impact structure, northwest Greenland ', Meteoritics and Planetary Science, vol. 58, no. 6, pp. 789-814 . https://doi.org/10.1111/maps.13987

Impact melt rocks formed during hypervelocity impact events are ideal for studying impact structures. Here, we describe impact melt rock samples collected proximal to the 31 km wide 58 Ma Hiawatha impact structure, northwest Greenland, which is compl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d63c5cffea4f9ef4bf66a01bdb1e3ae6
https://doi.org/10.1111/maps.13987

Microporphyritic and microspherulitic melt grains, Hiawatha crater, Northwest Greenland:Implications for post-impact cooling rates, hydration, and the cratering environment

Autor: Adam A. Garde, Nynke Keulen, Tod Waight

Publikováno v: Garde, A A, Keulen, N & Waight, T 2022, ' Microporphyritic and microspherulitic melt grains, Hiawatha crater, Northwest Greenland : Implications for post-impact cooling rates, hydration, and the cratering environment ', Geological Society of America. Bulletin, vol. 134, no. 7-8, pp. 2145–2166 . https://doi.org/10.1130/B36058.1

Sand-sized impactite melt grains hand-picked from a glaciofluvial sample proximal to the Hiawatha impact crater in Northwest Greenland contain new information about the crystallization and cooling history of this impact structure, which is concealed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8c090cb8f8f793db4c2be39ffde5e00
https://curis.ku.dk/ws/files/312703549/Microporphyritic_and_microspherulitic_melt_grains_Hiawatha_crater.pdf

RETRACTED: Origin and transformation of organic carbon from the Hiawatha meteorite crater, North-West Greenland: a preliminary study

Autor: Adam A. Garde, Christian Weikusat, Jette Møller, Carsten Guvad, Joseph A. MacGregor, Olaf Eisen, Henning Haack, Tod E. Waight, Nicolaj K. Larsen, Kurt H. Kjær, Mark Fahnestock, Anne Sofie Søndergaard, Iain McDonald, Svend Funder

Publikováno v: Garde, A A, Eisen, O, Fahnestock, M A, Funder, S, Guvad, C, Haack, H, Kjær, K H, Larsen, N K, Macgregor, J A, McDonald, I, Møller, J D, Søndergaard, A S, Waight, T E & Weikusat, C 2018, ' RETRACTED: Origin and transformation of organic carbon from the Hiawatha meteorite crater, North-West Greenland : A preliminary study ', Energy Procedia, vol. 146 . https://doi.org/10.1016/j.egypro.2018.07.025

Glaciofluvial sand draining the newly discovered Hiawatha impact crater under the Greenland Ice Sheet in North-West Greenland contains shocked quartz, glasses derived from direct mineral melts, carbon-bearing glasses, particles of charcoal and transf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::194809e783bd1b73ad413582771137e7
https://doi.org/10.1016/j.egypro.2018.07.025

Hafnium isotope constraints on the origin of Mesoarchaean andesites in southern West Greenland, North Atlantic Craton

Autor: Jonas Tusch, Carsten Münker, Adam A. Garde, J. Elis Hoffmann, Kristoffer Szilas

Publikováno v: Geological Society, London, Special Publications. 449:19-38

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https://doi.org/10.1144/sp449.2

A large impact crater beneath Hiawatha Glacier in northwest Greenland

Autor: Shfaqat Abbas Khan, Olaf Eisen, Tod E. Waight, Tobias Binder, Svend Funder, Joseph A. MacGregor, Michael Houmark-Nielsen, John Paden, Iain McDonald, Veit Helm, Henning Haack, Anders A. Bjørk, Mathieu Morlighem, Horst Machguth, Jeremie Mouginot, Eske Willerslev, Adam A. Garde, Mark Fahnestock, Christian Weikusat, Nicolaj K. Larsen, Kristian K. Kjeldsen, Kurt H. Kjær

Publikováno v: Kjær, K H, Larsen, N K, Binder, T, Bjørk, A A, Eisen, O, Fahnestock, M A, Funder, S, Garde, A A, Haack, H, Helm, V, Houmark-Nielsen, M, Kjeldsen, K K, Khan, S A, Machguth, H, McDonald, I, Morlighem, M, Mouginot, J, Paden, J D, Waight, T E, Weikusat, C, Willerslev, E & MacGregor, J A 2018, ' A large impact crater beneath Hiawatha Glacier in northwest Greenland ', Science Advances, vol. 4, no. 11, eaar8173 . https://doi.org/10.1126/sciadv.aar8173
Science Advances
Science Advances, American Association for the Advancement of Science (AAAS), 2018, 4 (11), pp.eaar8173. ⟨10.1126/sciadv.aar8173⟩
Kjær, K H, Larsen, N K, Binder, T, Bjørk, A A, Eisen, O, Fahnestock, M, Funder, S V, Garde, A A, Haack, H, Helm, V, Houmark-Nielsen, M, Kjeldsen, K K, Khan, S, Machguth, H, McDonald, I, Morlighem, M, Mouginot, J, Paden, J D, Waight, T E, Weikusat, C, Willerslev, E & MacGregor, J 2018, ' A large impact crater beneath Hiawatha Glacier in northwest Greenland ', Science Advances, vol. 4, no. 11, eaar8173 . https://doi.org/10.1126/sciadv.aar8173
Science Advances, 2018, 4 (11), pp.eaar8173. ⟨10.1126/sciadv.aar8173⟩
EPIC3Science Advances, 4(11), pp. eaar8173, ISSN: 2375-2548
Kjaer, Kurt H; Larsen, Nicolaj K; Binder, Tobias; Bjork, Anders A; Eisen, Olaf; Fahnestock, Mark A; et al.(2018). A large impact crater beneath Hiawatha Glacier in northwest Greenland. SCIENCE ADVANCES, 4(11), eaar8173. doi: 10.1126/sciadv.aar8173. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/5820j274

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. From airborne radar surve

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https://pure.au.dk/portal/da/publications/a-large-impact-crater-beneath-hiawatha-glacier-in-northwest-greenland(6a6be6b1-a8fa-4ff3-b7cd-55c347677bd1).html