Search Results - "Ormo, J"

The Lomonosov Crater Impact Event: A Possible Mega‐Tsunami Source on Mars by Costard, F., Séjourné, A., Lagain, A., Ormö, J., Rodriguez, J.A.P., Clifford, S., Bouley, S., Kelfoun, K., Lavigne, F.

“…Recent research suggests that major meteorite impact events into a Late Hesperian/Early Amazonian ocean likely produced a mega‐tsunami that would have…”
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Boulder exhumation and segregation by impacts on rubble-pile asteroids by Ormö, J., Raducan, S.D., Jutzi, M., Herreros, M.I., Luther, R., Collins, G.S., Wünnemann, K., Mora-Rueda, M., Hamann, C.

“…Small asteroids are often considered to be rubble-pile objects, and such asteroids may be the most likely type of Near Earth Objects (NEOs) to pose a threat to…”
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Assessing event magnitude and target water depth for marine-target impacts: Ocean resurge deposits in the Chicxulub M0077A drill core compared by Ormö, J., Gulick, S.P.S., Whalen, M.T., King, D.T., Sturkell, E., Morgan, J.

“…•Debris-laden ocean resurge crested Chicxulub's peak ring and was at least 450 m deep.•Dominant sediment deposition occurred after a rapid drop in resurge…”
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The Vakkejokk Breccia: An Early Cambrian proximal impact ejecta layer in the North‐Swedish Caledonides by Ormö, J., Nielsen, A. T., Alwmark, C.

“…The ≤27 m thick Vakkejokk Breccia is intercalated in autochthon Lower Cambrian along the Caledonian front north of Lake Torneträsk, Lapland, Sweden. The…”
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Resurge deposits associated with the shallow marine early Cambrian Vakkejokk impact, north Sweden by Ormö, J., Minde, P., Nielsen, A. T., Alwmark, C.

“…The lower Cambrian Vakkejokk Breccia is a proximal ejecta layer from a shallow marine impact. It is exposed for ~7 km along a steep mountainside in Lapland,…”
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Formation of resurge gullies at impacts at sea: The Lockne crater, Sweden by DALWIGK, Ilka von, ORMÖ, Jens

“…— The Lockne crater in Sweden is a marine‐target crater, formed in a shelf sea, approximately 460 Ma ago. The crater structure consists of an inner crater…”
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Sedimentological analysis of two drill cores through the crater moat‐filling breccia, Flynn Creek impact structure, Tennessee by Marchi, L., Ormö, J., King, D. T., Adrian, D. R., Hagerty, J. J., Gaither, T. A.

“…Sedimentological (line‐logging) analysis of two drill cores, FC77‐3 and FC67‐3, situated, respectively, in the northwestern and southeastern quadrants of the…”
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Physical properties of asteroid Dimorphos as derived from the DART impact by Raducan, S. D., Jutzi, M., Cheng, A. F., Zhang, Y., Barnouin, O., Collins, G. S., Daly, R. T., Davison, T. M., Ernst, C. M., Farnham, T. L., Ferrari, F., Hirabayashi, M., Kumamoto, K. M., Michel, P., Murdoch, N., Nakano, R., Pajola, M., Rossi, A., Agrusa, H. F., Barbee, B. W., Syal, M. Bruck, Chabot, N. L., Dotto, E., Fahnestock, E. G., Hasselmann, P. H., Herreros, I., Ivanovski, S., Li, J. -Y., Lucchetti, A., Luther, R., Ormö, J., Owen, M., Pravec, P., Rivkin, A. S., Robin, C. Q., Sánchez, P., Tusberti, F., Wünnemann, K., Zinzi, A., Epifani, E. Mazzotta, Manzoni, C., May, B. H.

“…On 26 September 2022, NASA’s Double Asteroid Redirection Test (DART) mission successfully impacted Dimorphos, the natural satellite of the binary near-Earth…”
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Effect of Target Layering in Gravity‐Dominated Cratering in Nature, Experiments, and Numerical Simulations by Ormö, J., Raducan, S. D., Housen, K. R., Wünnemann, K., Collins, G. S., Rossi, A. P., Melero‐Asensio, I.

“…Impacts into layered targets may generate “concentric craters” where a wider outer crater in the top layer surrounds a smaller, nested crater in the basement,…”
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Investigating the subsurface structure of the main crater of the proposed Sirente meteorite crater field (Central Italy): new clues from reflection seismics by Torrese, P., Rossi, A.P., Ormö, J., Rainone, M.L., Ori, G.G.

“…The Sirente crater field (Central Italy) consists of a main, ≈130 m wide, droplet-shaped in plan view depression with a prominently elevated rim, and 30…”
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The geology of the Målingen structure: A probable doublet to the Lockne marine-target impact crater, central Sweden by Ormö, J., Sturkell, E., Nõlvak, J., Melero-Asensio, I., Frisk, Å., Wikström, T.

“…The Målingen structure is an approximately 700 m wide, rimmed, sediment‐filled, circular depression in Precambrian crystalline basement approximately 16.2 km…”
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Scaling and reproducibility of craters produced at the Experimental Projectile Impact Chamber (EPIC), Centro de Astrobiología, Spain by Ormö, J., Melero-Asensio, I., Housen, K. R., Wünnemann, K., Elbeshausen, D., Collins, G. S.

“…The Experimental Projectile Impact Chamber (EPIC) is a specially designed facility for the study of processes related to wet‐target (e.g., “marine”) impacts…”
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Shocked quartz grains from the Målingen structure, Sweden-Evidence for a twin crater of the Lockne impact structure by Alwmark, C., Alwmark-Holm, S., Ormö, J., Sturkell, E.

“…The Målingen structure in Sweden has for a long time been suspected to be the result of an impact; however, no hard evidence, i.e., shock metamorphic features…”
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First known Terrestrial Impact of a Binary Asteroid from a Main Belt Breakup Event by Ormö, Jens, Sturkell, Erik, Alwmark, Carl, Melosh, Jay

“…Approximately 470 million years ago one of the largest cosmic catastrophes occurred in our solar system since the accretion of the planets. A 200-km large…”
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Early modification stage (preresurge) sediment mobilization in the Lockne concentric, marine-target crater, Sweden by Sturkell, Erik, Ormö, Jens, Lepinette, Alain

“…Lockne is a concentric impact structure due to a layered target where weak sediments and seawater covered a crystalline basement. A matrix‐supported,…”
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A possible terrestrial analogue for haematite concretions on Mars by Chan, Marjorie A, Beitler, Brenda, Parry, W. T, Ormö, Jens, Komatsu, Goro

“…Recent exploration has revealed extensive geological evidence for a water-rich past in the shallow subsurface of Mars. Images of in situ and loose…”
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Geophysical signature of Målingen, the minor crater of the Lockne–Målingen doublet impact structure by Melero‐Asensio, Irene, Ormö, Jens, Sturkell, Erik, Stockmann, Gabrielle, Mansfeld, Joakim

“…Målingen is the 0.7 km wide minor crater associated to the 10 times larger Lockne crater in the unique Lockne–Målingen doublet. The craters formed at 458 Ma by…”
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Microfossil dating of the Brent Meteorite crater, southeast Ontario, Canada by GRAHN, Y, ORMO, J

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Magnetic modelling as a tool in the evaluation of impact structures, with special reference to the Tvären Bay impact crater, SE Sweden by Ormö, J., Blomqvist, G.

“…Until recently computer modelling of radial-symmetric structures, like impact craters, has presented difficulties. As a result of this, such models are scarce…”
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The Tsenkher structure in the Gobi-Altai, Mongolia: Geomorphological hints of an impact origin by Komatsu, Goro, Olsen, John W., Ormö, Jens, Di Achille, Gaetano, Kring, David A., Matsui, Takafumi

“…The Tsenkher structure, in the Gobi-Altai region of Mongolia, was studied using a wide array of remote sensing data and field observations. The structure has a…”
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