Imperial College London
Portrait Picture

Professor Gareth Collins

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Planetary Science
 
 
 
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Contact

 

+44 (0)20 7594 1518g.collins Website

 
 
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Location

 

4.83Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Dundas:2023:10.1029/2022gl100747,
author = {Dundas, CM and Mellon, MT and Posiolova, LV and Miljkovi, K and Collins, GS and Tornabene, LL and Rangarajan, VG and Golombek, MP and Warner, NH and Daubar, IJ and Byrne, S and McEwen, AS and Seelos, KD and Viola, D and Bramson, AM and Speth, G},
doi = {10.1029/2022gl100747},
journal = {Geophysical Research Letters},
pages = {1--9},
title = {A large new grater exposes the limits of water ice on Mars},
url = {http://dx.doi.org/10.1029/2022gl100747},
volume = {50},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Water ice in the Martian mid-latitudes has advanced and retreated in response to variations in the planet's orbit, obliquity, and climate. A 150 m-diameter new impact crater near 35°N provides the lowest-latitude impact exposure of subsurface ice on Mars. This is the largest known ice-exposing crater and provides key constraints on Martian climate history. This crater indicates a regional, relatively pure ice deposit that is unstable and has nearly vanished. In the past, this deposit may have been tens of meters thick and extended equatorward of 35°N. We infer that it is overlain by pore ice emplaced during temporary stable intervals, due to recent climate variability. The marginal survival of ice here suggests that it is near the edge of shallow ice that regularly exchanges with the atmosphere.
AU  - Dundas,CM
AU  - Mellon,MT
AU  - Posiolova,LV
AU  - Miljkovi,K
AU  - Collins,GS
AU  - Tornabene,LL
AU  - Rangarajan,VG
AU  - Golombek,MP
AU  - Warner,NH
AU  - Daubar,IJ
AU  - Byrne,S
AU  - McEwen,AS
AU  - Seelos,KD
AU  - Viola,D
AU  - Bramson,AM
AU  - Speth,G
DO  - 10.1029/2022gl100747
EP  - 9
PY  - 2023///
SN  - 0094-8276
SP  - 1
TI  - A large new grater exposes the limits of water ice on Mars
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2022gl100747
UR  - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GL100747
UR  - http://hdl.handle.net/10044/1/101553
VL  - 50
ER  -
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