Discharge of meteoric water in the Eastern Norwegian Sea since the Last Glacial Period

Hong, Wei‐Li; Lepland, Aivo; Himmler, Tobias; Kim, Ji‐Hoon; Chand, Shyam; Sahy, Diana; Solomon, Evan A.; Rae, James W. B.; Martma, Tõnu; Nam, Seung‐Il; Knies, Jochen. 2019 Discharge of meteoric water in the Eastern Norwegian Sea since the Last Glacial Period. Geophysical Research Letters, 46 (14). 8194-8204. 10.1029/2019GL084237

Before downloading, please read NORA policies.

Preview

Text (Open Access Paper)
Hong_et_al-2019-Geophysical_Research_Letters.pdf - Published Version
Available under License Creative Commons Attribution 4.0.
Download (1MB) | Preview

Official URL: http://dx.doi.org/10.1029/2019GL084237

Abstract/Summary

Submarine groundwater discharge could impact the transport of critical solutes to the ocean. However, its driver(s), significance over geological time scales, and geographical coverage are poorly understood. We characterize a submarine groundwater seep from the continental slope off northern Norway where substantial amount of meteoric water was detected. We reconstruct the seepage history from textural relationships and U‐Th geochronology of authigenic minerals. We demonstrate how glacial‐interglacial dynamics have promoted submarine groundwater circulation more than 100 km offshore and result in high fluxes of critical solutes to the ocean. Such cryosphere‐hydrosphere coupling is likely common in the circum‐Arctic implying that future decay of glaciers and permafrost in a warming Arctic is expected to attenuate such a coupled process and thus decreases the export of critical solutes.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1029/2019GL084237
ISSN:	0094-8276
Date made live:	26 Nov 2019 14:06 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/526048

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1029/2019GL084237

ISSN:

0094-8276

Date made live:

26 Nov 2019 14:06 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/526048