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Ocean Floor

exploring & describing

The ocean floor is one of the most dynamic and geologically diverse regions on Earth. Its shape is constantly being changed by the input of sediments, their further transport and deposition as well as by submarine volcanism, earthquakes, anthropogenic influences and many other factors.

MARUM scientists deal with a broad spectrum of processes that shape the sea floor. These include current-driven sediment movement and its influence by human activities, the influence of seafloor dynamics on morphology and benthic ecosystems, as well as cascading natural hazards and their precursors. The interactions between the Earth's crust and the sediment bed at oceanic rift and spreading centers are also the focus of MARUM's research.

Some of the questions that drive our research are:

  • How are oceanic crust and plates formed and how do they evolve and how do they affect geochemical cycles in the ocean?
  • What controls slope instability and how does it affect human activities?
  • What processes control the transport and accumulation of sediments and other particles, such as organic carbon and plastic?
  • What factors control the growth of cold-water corals?

To answer those and many other questions, we apply different methods ranging from numerical modelling, analysis of sediment cores or observations of the seafloor using the technology of MARUM.

Participating Research Groups
Sampling with the diving robot MARUM-QUEST at a water depth of 520 meters on the Azores Plateau, Photo: MARUM - Center for Marine Environmental Sciences, University of Bremen

Sampling with the diving robot MARUM-QUEST at a water depth of 520 meters on the Azores Plateau, Photo: MARUM - Center for Marine Environmental Sciences, University of Bremen

seagras, Photo: NOAA

sea4society

Innovative approaches to improve the carbon storage potential of coastal vegetation ecosystems

(DAM Research Mission)

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Pillow lava at the Mid-Atlantic Ridge axis. Photo: MARUM − Center for Marine Environmental Sciences, University of Bremen

AIMS3

Alternate scenarios, Innovative technologies, and Monitoring approaches for Sub-Seabed Storage of carbon dioxide

(DAM Research Mission)

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Self-organized mineral structures, so-called biomorphs, which imitate living organisms but are the result of purely abiotic reactions. The size of these biomorphs is between one and 25 micrometers. Photo: Juan Manuel Garcia-Ruiz/CSIC

PROTOS

The Role of Silica in the Dawn of Life on our Planet

(ERC Synergy Grant)

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Current news

Showing 89-92 of 125 items.
The MARUM-CTD (foreground), was deployed on the seafloor last year and connected to the box-like multi-plug box (background) of the OOI observatory. Photo: OOI/WHOI/NSF

Aug 12, 2021

Follow a live dive

Sonar devices developed at MARUM have been in use off the west coast of the USA for more than three years. They are part of the underwater observatory ...

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During the research cruise HE 578, the pathways and fate of microplastics in northern European waters are being investigated. The photo shows Dr. Gerard Versteegh, AWI, and colleagues checking a sampling device before use. Photo: MARUM/ K. Zonneveld

Jun 16, 2021

Research cruise explores microplastics

 

From June 4 to July 9, an expedition is taking place as part of the international project "FACTS - Fluxes and Fate of Microplastics in Northern European ...

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Ozeanboden.

The Ocean Floor – Earth’s Un­charted In­ter­face

MARUM is home to the Cluster of Excellence ›The Ocean Floor - Earth's Uncharted Interface‹.