Lithogeochemistry of the Nesjavellir geothermal field, SW Iceland—Implications for elemental mass movement in active geothermal systems

Toro Vivanco DI, Kleine-Marshall B, Smit MJ, Gunnarsdóttir SH, Franzson H, Stefánsson A (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Geothermics Elsevier

Book Volume: 120

Article Number: 103013

DOI: 10.1016/j.geothermics.2024.103013

Abstract

The lithogeochemistry of altered basalts was investigated to assess elemental mass changes in the active meteoric water dominated geothermal system at Nesjavellir, SW Iceland. The study revealed that elemental mass changes upon hydrothermal alteration is rather limited and the extent of metasomatism is controlled by the type of alteration minerals. Large mass movement was detected in volatiles (C and S), likely derived from magma degassing. The geothermal system at Nesjavellir may thus provide an ideal locality to investigate the natural sequestration of deep-sourced volatiles and deliver insights in quantifying the input of mantle degassing on the budget of geothermal systems.

Authors with CRIS profile

Barbara Kleine-Marshall Professur für Geochemie von Lagerstätten

Involved external institutions

University of Iceland (UI) / Háskóli Íslands IS Iceland (IS) Iceland GeoSurvey / Íslenskar orkurannsóknir (ÍSOR) IS Iceland (IS)

How to cite

APA:

Toro Vivanco, D.I., Kleine-Marshall, B., Smit, M.J., Gunnarsdóttir, S.H., Franzson, H., & Stefánsson, A. (2024). Lithogeochemistry of the Nesjavellir geothermal field, SW Iceland—Implications for elemental mass movement in active geothermal systems. Geothermics, 120. https://doi.org/10.1016/j.geothermics.2024.103013

MLA:

Toro Vivanco, Diego I., et al. "Lithogeochemistry of the Nesjavellir geothermal field, SW Iceland—Implications for elemental mass movement in active geothermal systems." Geothermics 120 (2024).

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