Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Meteor	M190	08.06.2023 - 10.07.2023	THE OCEAN FLOOR	North Atlantic Ocean

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Bach Wolfgang	Universitat Bremen, Zentrum fur Marine Umweltwissenschaften	Las Palmas	Algeciras

Ziel der Reise / Objectives of Cruise:

The major aims of cruise M190 of R/V Meteor was highly coordinated sampling of their fluids, rocks, and biota, as part of our joint geo-bio interface studies in the Research Area "Ocean Floor as a Reactor" of the proposed Cluster of Excellence "The Ocean Floor - Earth's Uncharted Interface". The hydrothermal vents in the area of the Mid-Atlantic Ridge (MAR) between 29?10'N and 37?50'N occur in different geological settings (axial volcano vs. detachment fault vs. axial volcanic ridge) and are hence geochemically highly diverse. It was planned to conduct water column surveys to determine how closely spaced vents are in the MAR 36-38?N area and what controls their distribution. Sampling hydrothermal vents with ROV MARUM Quest 4000 allowed us to assess the diversity of the hydrothermal fluids between those km-spaced vents and determine the volcanic and faulting controls of this diversity. We also wanted to examine how the distribution of vents and variability of fluid compositions affect the genetic and metabolic diversity of symbiotic and free-living microbes

Messungen / Measurements