Multiple melt source origin of the Line Islands (Pacific Ocean)
Date of Original Version
The Line Islands volcanic chain in the central Pacific Ocean exhibits many characteristics of a hotspot-generated seamount chain; however, the lack of a predictable age progression has stymied previous models for the origin of this feature. We combined plate-tectonic reconstructions with seamount age dates and available geochemistry to develop a new model that involves multiple melt regions and multiple melt delivery styles to explain the spatial and temporal history of the Line Islands system. Our model identifies a new melt source region (Larson melt region at ~17°S, ~125°W) that contributed to the formation of the Line Islands, as well as the Mid-Pacific Mountains and possibly the Pukapuka Ridge
Publication Title, e.g., Journal
Pockalny, Robert, Ginger Barth, Barry Eakins, Katherine A. Kelley, and Christina Wertman. "Multiple melt source origin of the Line Islands (Pacific Ocean)." Geology 49, 11 (2021). doi: 10.1130/G49306.1.