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Widespread assimilation of a seawater-derived component at Loihi Seamount, Hawaii

Kent, Alison; Clague, D; Honda, Masahiko; Stolper, Edward; Hutcheon, Ian D; Norman, Marc


Many tholeiitic and transitional pillow-rim and fragmental glasses from Loihi seamount, Hawaii, have high Cl contents and Cl/K2O ratios (and ratios of Cl to other incompatible components, such as P2O5, H2O, etc.) relative to other Hawaiian subaerial volcanoes (e.g., Mauna Loa, Mauna Kea, and Kilauea). We suggest that this results from widespread contamination of Loihi magmas by a Cl-rich, seawater-derived component. Assimilation of high-Cl phases such as saline brine or Cl-rich minerals (halite...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/S0016-7037(99)00215-X


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