The formation of peak rings in large impact craters
Large impacts provide a mechanism for resurfacing planets through mixing near-surface rocks with deeper material. Central peaks are formed from the dynamic uplift of rocks during crater formation. As crater size increases, central peaks transition to peak rings. Without samples, debate surrounds the...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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The American Association for the Advancement of Science
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/51191 |
| _version_ | 1848758637761134592 |
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| author | Morgan, J. Gulick, S. Bralower, T. Chenot, E. Christeson, G. Claeys, P. Cockell, C. Collins, G. Coolen, Marco Ferrière, L. Gebhardt, C. Goto, K. Jones, H. Kring, D. Le Ber, E. Lofi, J. Long, X. Lowery, C. Mellett, C. Ocampo-Torres, R. Osinski, G. Perez-Cruz, L. Pickersgill, A. Poelchau, M. Rae, A. Rasmussen, C. Rebolledo-Vieyra, M. Riller, U. Sato, H. Schmitt, D. Smit, J. Tikoo, S. Tomioka, N. Urrutia-Fucugauchi, J. Whalen, M. Wittmann, A. Yamaguchi, K. Zylberman, W. |
| author_facet | Morgan, J. Gulick, S. Bralower, T. Chenot, E. Christeson, G. Claeys, P. Cockell, C. Collins, G. Coolen, Marco Ferrière, L. Gebhardt, C. Goto, K. Jones, H. Kring, D. Le Ber, E. Lofi, J. Long, X. Lowery, C. Mellett, C. Ocampo-Torres, R. Osinski, G. Perez-Cruz, L. Pickersgill, A. Poelchau, M. Rae, A. Rasmussen, C. Rebolledo-Vieyra, M. Riller, U. Sato, H. Schmitt, D. Smit, J. Tikoo, S. Tomioka, N. Urrutia-Fucugauchi, J. Whalen, M. Wittmann, A. Yamaguchi, K. Zylberman, W. |
| author_sort | Morgan, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Large impacts provide a mechanism for resurfacing planets through mixing near-surface rocks with deeper material. Central peaks are formed from the dynamic uplift of rocks during crater formation. As crater size increases, central peaks transition to peak rings. Without samples, debate surrounds the mechanics of peak-ring formation and their depth of origin. Chicxulub is the only known impact structure on Earth with an unequivocal peak ring, but it is buried and only accessible through drilling. Expedition 364 sampled the Chicxulub peak ring, which we found was formed from uplifted, fractured, shocked, felsic basement rocks. The peak-ring rocks are cross-cut by dikes and shear zones and have an unusually low density and seismic velocity. Large impacts therefore generate vertical fluxes and increase porosity in planetary crust. |
| first_indexed | 2025-11-14T09:47:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-51191 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:47:10Z |
| publishDate | 2016 |
| publisher | The American Association for the Advancement of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-511912018-03-29T09:09:36Z The formation of peak rings in large impact craters Morgan, J. Gulick, S. Bralower, T. Chenot, E. Christeson, G. Claeys, P. Cockell, C. Collins, G. Coolen, Marco Ferrière, L. Gebhardt, C. Goto, K. Jones, H. Kring, D. Le Ber, E. Lofi, J. Long, X. Lowery, C. Mellett, C. Ocampo-Torres, R. Osinski, G. Perez-Cruz, L. Pickersgill, A. Poelchau, M. Rae, A. Rasmussen, C. Rebolledo-Vieyra, M. Riller, U. Sato, H. Schmitt, D. Smit, J. Tikoo, S. Tomioka, N. Urrutia-Fucugauchi, J. Whalen, M. Wittmann, A. Yamaguchi, K. Zylberman, W. Large impacts provide a mechanism for resurfacing planets through mixing near-surface rocks with deeper material. Central peaks are formed from the dynamic uplift of rocks during crater formation. As crater size increases, central peaks transition to peak rings. Without samples, debate surrounds the mechanics of peak-ring formation and their depth of origin. Chicxulub is the only known impact structure on Earth with an unequivocal peak ring, but it is buried and only accessible through drilling. Expedition 364 sampled the Chicxulub peak ring, which we found was formed from uplifted, fractured, shocked, felsic basement rocks. The peak-ring rocks are cross-cut by dikes and shear zones and have an unusually low density and seismic velocity. Large impacts therefore generate vertical fluxes and increase porosity in planetary crust. 2016 Journal Article http://hdl.handle.net/20.500.11937/51191 10.1126/science.aah6561 The American Association for the Advancement of Science restricted |
| spellingShingle | Morgan, J. Gulick, S. Bralower, T. Chenot, E. Christeson, G. Claeys, P. Cockell, C. Collins, G. Coolen, Marco Ferrière, L. Gebhardt, C. Goto, K. Jones, H. Kring, D. Le Ber, E. Lofi, J. Long, X. Lowery, C. Mellett, C. Ocampo-Torres, R. Osinski, G. Perez-Cruz, L. Pickersgill, A. Poelchau, M. Rae, A. Rasmussen, C. Rebolledo-Vieyra, M. Riller, U. Sato, H. Schmitt, D. Smit, J. Tikoo, S. Tomioka, N. Urrutia-Fucugauchi, J. Whalen, M. Wittmann, A. Yamaguchi, K. Zylberman, W. The formation of peak rings in large impact craters |
| title | The formation of peak rings in large impact craters |
| title_full | The formation of peak rings in large impact craters |
| title_fullStr | The formation of peak rings in large impact craters |
| title_full_unstemmed | The formation of peak rings in large impact craters |
| title_short | The formation of peak rings in large impact craters |
| title_sort | formation of peak rings in large impact craters |
| url | http://hdl.handle.net/20.500.11937/51191 |