Ghost-arc geochemical anomaly at a spreading ridge caused by supersized flat subduction

• Published in: Nature Communications
• Main Authors: Gianni, Guido Martin, Likerman, Jeremias, Navarrete Granzotto, César Rodrigo, Gianni, Conrado Rubén, Zlotnik, Sergio
• Format: Article in Journal/Newspaper
• Language: English
• Published: Nature
• Subjects: ghost-arc; flat slab; subduction; SASWIR; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Antarctic; Antarctic Peninsula; Argentina; Guido; Indian; Navarrete; Pablo; Patagonia; San Juan; Antarc*
• Online Access: http://hdl.handle.net/11336/218426

The Southern Atlantic-Southwest Indian ridges (SASWIR) host mid-ocean ridge basalts with a residual subduction-related geochemical fingerprint (i.e., a ghost-arc signature) of unclear origin. Here, we show through an analysis of plate kinematic reconstructions and seismic tomography models that the...