Lower crustal hydrothermal circulation at slow-spreading ridges: evidence from chlorine in Arctic and South Atlantic basalt glasses and melt inclusions

• Published in: Contributions to Mineralogy and Petrology
• Main Authors: van der Zwan, Froukje M., Devey, Colin W., Hansteen, Thor H., Almeev, Renat R., Augustin, Nico, Frische, Matthias, Haase, Karsten M., Basaham, Ali, Snow, Jonathan E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer 2017
• Subjects: Arctic; Gakkel Ridge; Mid-Atlantic Ridge
• Online Access: https://oceanrep.geomar.de/id/eprint/40109/; https://oceanrep.geomar.de/id/eprint/40109/1/van%20der%20Zwan.pdf; https://doi.org/10.1007/s00410-017-1418-1

Hydrothermal circulation at slow-spreading ridges is important for cooling the newly formed lithosphere, but the depth to which it occurs is uncertain. Magmas which stagnate and partially crystallize during their rise from the mantle provide a means to constrain the depth of circulation because assi...