Brief communication: The hidden labyrinth: deep groundwater in Wright Valley, Antarctica
-
Published:2022-12-16
Issue:12
Volume:16
Page:4977-4983
-
ISSN:1994-0424
-
Container-title:The Cryosphere
-
language:en
-
Short-container-title:The Cryosphere
Author:
Dugan Hilary A., Doran Peter T., Grombacher Denys, Auken EsbenORCID, Bording Thue, Foged Nikolaj, Foley Neil, Mikucki Jill, Virginia Ross A.ORCID, Tulaczyk SlawekORCID
Abstract
Abstract. Since the 1960s, a deep groundwater system in Wright Valley, Antarctica, has been the hypothesized source of brines to hypersaline Don Juan Pond and Lake Vanda, both of which are rich in calcium and chloride. Modeling studies do not support other possible mechanisms, such as evaporative processes, that could have led to the current suite of ions present in both waterbodies. In 2011 and 2018, an airborne electromagnetic survey was flown over Wright Valley to map subsurface resistivity (down to 600 m) in exploration of liquid water. The surveys revealed widespread unfrozen brine in the subsurface near Lake Vanda, Don Juan Pond, and the North Fork of Wright Valley. While our geophysical survey can neither confirm nor deny deep groundwater connectivity between Lake Vanda and Don Juan Pond, it does point to the potential for deep valley-wide brine, likely within the Ferrar Dolerite formation.
Funder
National Science Foundation
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
Reference37 articles.
1. Armitage, K. and House, H.: A limnological reconnaissance in the area of
McMurdo Sound, Antarctica, Limnol. Oceanogr., 7, 36–41,
https://doi.org/10.4319/lo.1962.7.1.0036, 1962. a 2. Auken, E., Christiansen, A. V., Kirkegaard, C., Fiandaca, G., Schamper, C.,
Behroozmand, A. A., Binley, A., Nielsen, E., Effersø, F., Christensen,
N. B., Sørensen, K., Foged, N., and Vignoli, G.: An overview of a highly
versatile forward and stable inverse algorithm for airborne, ground-based and
borehole electromagnetic and electric data, Explor. Geophys., 46,
223–235, https://doi.org/10.1071/EG13097, 2015. a 3. Campen, R., Kowalski, J., Lyons, W. B., Tulaczyk, S., Dachwald, B., Pettit, E.,
Welch, K. A., and Mikucki, J. A.: Microbial diversity of an Antarctic
subglacial community and high-resolution replicate sampling inform
hydrological connectivity in a polar desert, Environ. Microbiol., 21, 2290–2306, https://doi.org/10.1111/1462-2920.14607, 2019. a 4. Carlson, C. A., Phillips, F. M., Elmore, D., and Bentley, H. W.: Chlorine-36
tracing of salinity sources in the Dry Valleys of Victoria Land,
Antarctica, Geochim. Cosmochim. Ac., 54, 311–318,
https://doi.org/10.1016/0016-7037(90)90320-K, 1990. a 5. Cartwright, K. and Harris, H. J. H.: Hydrogeology of the Dry Valley region,
Antarctica, in: Dry Valley Drilling Project, Antarctic Research
Series 33, edited by: McGinnis, L. D., 33, 193–214 pp., American
Geophysical Union, Washington DC, USA, https://doi.org/10.1029/AR033p0193, 1981. a, b
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|