Imperial College London
Alternate

ProfessorJoannaMorgan

Faculty of Engineering, Department of Earth Science & Engineering

Emeritus Professor of Geophysics
 
 
 
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Contact

 

+44 (0)20 7594 6423j.v.morgan

 
 
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Location

 

1.46CRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ormö:2021:10.1016/j.epsl.2021.116915,
author = {Ormö, J and Gulick, SPS and Whalen, MT and King, DT and Sturkell, E and Morgan, J},
doi = {10.1016/j.epsl.2021.116915},
journal = {Earth and Planetary Science Letters},
pages = {1--14},
title = {Assessing event magnitude and target water depth for marine-target impacts: Ocean resurge deposits in the Chicxulub M0077A drill core compared},
url = {http://dx.doi.org/10.1016/j.epsl.2021.116915},
volume = {564},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The rim wall of water formed from even a modestly-sized marine impact may be kilometers in height.Although modeling has shown that this wave swiftly breaks and relatively rapidly loses energy duringoutwards travel from the impact site, the portion of the rim wall that collapses inwards may generatea resurge flow with tremendous transport energy. Here we compare the deposits generated by thisocean resurge inside one of the largest marine-target craters on Earth, the 200-km wide Chicxulubcrater, Yucatán Peninsula, México, with resurge deposits (breccias) in eight drill cores from five othermarine-target craters in Sweden and the United States. Examination of the wide range of cored locationswithin the craters, and target water depths (H) relative to modeled projectile diameters (d) reveal a highcorrelation between location, average clast frequency (N ), and d/H from which any of the four variablescan be obtained. The relationship shown here may provide an important tool for diagnosing marineimpact cratering processes where there is limited understanding of crater size and/or paleobathymetry
AU  - Ormö,J
AU  - Gulick,SPS
AU  - Whalen,MT
AU  - King,DT
AU  - Sturkell,E
AU  - Morgan,J
DO  - 10.1016/j.epsl.2021.116915
EP  - 14
PY  - 2021///
SN  - 0012-821X
SP  - 1
TI  - Assessing event magnitude and target water depth for marine-target impacts: Ocean resurge deposits in the Chicxulub M0077A drill core compared
T2  - Earth and Planetary Science Letters
UR  - http://dx.doi.org/10.1016/j.epsl.2021.116915
UR  - https://www.sciencedirect.com/science/article/pii/S0012821X21001746?via%3Dihub
UR  - http://hdl.handle.net/10044/1/88159
VL  - 564
ER  -
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