RT Journal Article
T1 High-resolution multibeam bathymetry of the northern Mid-Atlantic Ridge at 45–46° N: the Moytirra hydrothermal field
A1 Somoza Losada, Luis
A1 Medialdea, Teresa
A1 González, Francisco J.
A1 Machancoses, Sara
A1 Cid, Constantino
A1 Calado, Antonio
A1 Afonso, Andreia
A1 Pinto Ribeiro, Luisa
A1 Blasco, Iker
A1 Albuquerque, Mónica
A1 Asensio Ramos, María
A1 Bettencourt, Renato
A1 Ignacio San José, Cristina de
A1 López Pamo, Enrique
A1 Ramos, Bruno
A1 Rincón-Tomás, Blanca
A1 Santofimia Pastor, Esther
A1 Souto, Miguel
A1 Tojeira, Inês
A1 Viegas, Cláudia
A1 Madureira, Pedro
AB This work presents a new high-resolution multibeam bathymetric map of a segment of active deep sea-floor spreading in the Atlantic Ocean, the northern Mid-Atlantic Ridge (MAR) at 45–46º N. New high-resolution bathymetry data were acquired using an Atlas multibeam echosounder onboard the research vessel Sarmiento de Gamboa during the EXPLOSEA-2 survey in 2019. The final map of the MAR (50 m cell grid size) at the original scale of 1:200,000 shows a segment of 140 × 35 km of the MAR, at water depths from 715 to 3700 m. This new high-resolution bathymetric map allows to better defining the submarine morphology of the Moytirra hydrothermal active field, the only high-temperature field identified between the Azores Archipelago (Portugal) and Iceland. ROV submarine observations reaching the deepest part of the system for the first time show giant anhydrite-sulfide chimneys up to 20 m high, active strong black smokers and polymetallic massive sulfides.
PB Taylor & Francis
SN 1744-5647
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/6940
UL https://hdl.handle.net/20.500.14352/6940
LA eng
NO Unión Europea. Horizonte 2020
NO Ministerio de Ciencia e Innovación (MICINN)
NO Atlantic Ocean Research Alliance Coordination and Support Action
NO Executive Agency for Small and Medium-sized Enterprise
NO Directorate-General for Maritime Affairs and Fisheries
NO Fundação para a Ciência e a Tecnologia
NO Azores Operational Program from European Regional Development Fund
DS Docta Complutense
RD 5 abr 2025