Articles | Volume 15, issue 4
https://doi.org/10.5194/se-15-555-2024
https://doi.org/10.5194/se-15-555-2024
Research article
 | 
30 Apr 2024
Research article |  | 30 Apr 2024

Uplift and denudation history of the Ellsworth Mountains: insights from low-temperature thermochronology

Joaquín Bastías-Silva, David Chew, Fernando Poblete, Paula Castillo, William Guenthner, Anne Grunow, Ian W. D. Dalziel, Airton N. C. Dias, Cristóbal Ramírez de Arellano, and Rodrigo Fernandez

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Cited articles

Ault, A. K., Gautheron, C., and King, G. E.: Innovations in (U–Th) / He, fission track, and trapped charge thermochronometry with applications to earthquakes, weathering, surface-mantle connections, and the growth and decay of mountains, Tectonics, 38, 3705–3739, https://doi.org/10.1029/2018TC005312, 2019. 
Balestrieri, M. L., Bigazzi, G., and Ghezzo, C.: Uplift-denudation of the Transantarctic Mountains between the David and the Mariner glaciers, northern Victoria Land (Antarctica); constraints by apatite fission-track analysis, in: VII international symposium on Antarctic earth sciences, Siena, Italy, 547–554, https://scar.org/events/conferences-and-symposia/isaes (last access: 30 April 2024), 1997. 
Bargnesi, E. A., Stockli, D. F., Hourigan, J. K., and Hager, C.: Improved accuracy of zircon (U–Th) / He ages by rectifying parent nuclide zonation with practical methods, Chem. Geol., 426, 158–169, https://doi.org/10.1016/j.chemgeo.2016.01.017, 2016. 
Bastías, J., Spikings, R., Riley, T., Ulianov, A., Grunow, A., Chiaradia, M., and Hervé, F.: A revised interpretation of the Chon Aike magmatic province: active margin origin and implications for the opening of the Weddell Sea, Lithos, 386, 106013, https://doi.org/10.1016/j.lithos.2021.106013, 2021. 
Bastias, J., Spikings, R., Riley, T., Chew, D., Grunow, A., Ulianov, A., Chiaradia, M., and Burton-Johnson, A.: Cretaceous magmatism in the Antarctic Peninsula and its tectonic implications, J. Geol. Soc., 180, 1–18, https://doi.org/10.1144/jgs2022-067, 2022. 
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Short summary
The Ellsworth Mountains, situated in a remote area of Antarctica, span 350 km in length and 50 km in width, encompassing Antarctica's tallest peak. Due to their isolated location, understanding their formation has been challenging and remains incomplete. Our analysis of zircon minerals from the Ellsworth Mountains indicates that the mountain chain formed between 180 and 100 million years ago, contributing to our understanding of their formation.