Holocene marine tephra offshore Ecuador and Southern Colombia collected during the Amadeus and Atacames oceanographic campaigns (2005, 2012)

• Main Authors: Bablon, Mathilde, Ratzov, Gueorgui, Nauret, François, Samaniego, Pablo, Michaud, François, Saillard, Marianne, Proust, Jean-Noël, Le Pennec, Jean-Luc, Collot, Jean-Yves, Devidal, Jean-Luc, Orange, François, Liorzou, Céline, Migeon, Sébastien, Vallejo, Silvia, Hidalgo, Silvana, Mothes, Patricia, Gonzalez, Miguel
• Format: Dataset
• Language: English
• Published: 2022
• Subjects: Tephrochonology; Volcanology; Geochemistry; Land-sea correlations; Ecuador; Gonzalez; Pablo; Silvia; Mothes; Planktonic foraminifera
• Online Access: https://zenodo.org/record/7016623; https://doi.org/10.5281/zenodo.7016623

Marine sediment cores collected during the Amadeus and Atacames oceanographic cruises reveal numerous turbidite and ash deposits, which are related to major earthquakes and volcanic eruptions that occurred along the Ecuadorian margin during the Holocene. We provide 14C ages performed on planktonic foraminifera present in hemipelagic layers to constrain the age of turbidite sequences, as well as geochemical analyses of ash layers to identify their source. Files: 1. Location of coring sites 2. Raw 14C ages performed on planktonic foraminifera 3. Depth of tephra layers 4. Raw Electron Microprobe results (single glass shards) 5. Raw LA-ICP-MS results (single glass shards) 6. Raw ICP-AES results (bulk glass shards) Related article: Mathilde Bablon, Gueorgui Ratzov, François Nauret, Pablo Samaniego, François Michaud, Marianne Saillard, Jean-Noël Proust, Jean-Luc Le Pennec, Jean-Yves Collot, Jean-Luc Devidal, François Orange, Céline Liorzou, Sébastien Migeon, Silvia Vallejo, Silvana Hidalgo, Patricia Mothes, Miguel Gonzalez (2022). Holocene marine tephra offshore Ecuador and Southern Colombia: first trench-to-arc correlations and implication for magnitude of major eruptions. Geochemistry, Geophysics, Geosystems