Schematic evolution of retrogressive slope failure due to overpressured gas below the gas haydrate stability zone (GHSZ): a submarine slope with gas hydrate-bearing sediments  and overpressured gas (bright area) at the bottom of the GHSZ induces pipe generation into the GHSZ,  the conduit encounters a permeable layer; gas enters and leads to overpressure transfer from the bottom of the GHSZ to the shallow subsurface, and finally overpessured gas causes shear banding in the weak layer and generates retrogressive slope failure.

Stable gas hydrates can trigger landslides

20 February 2018 / Kiel. Like avalanches onshore, there are different processes that cause submarine landslides. One very widespread assumption is that they are associated with dissociating gas hydrates in the seafloor. However, scientists at GEOMAR Helmholtz Centre for Ocean Research Kiel have now ...

Black smoker on the seafloor. Photo: ROV KIEL 6000/GEOMAR (CC BY 4.0)

Science demands protection for active "black smokers"

16 February 2018 / Kiel, London. In addition to manganese nodules in abyssal plains, ore deposits around hot vents on the seabed are among the potentially economically interesting metal deposits in the oceans. This week, members of the International Seabed Authority (ISA) met in London with represen...

Emiliania huxleyi cells in an electron microscopic picture. Photo: Lennart Bach, GEOMAR (CC BY 4.0)

Rapid evolution of a calcareous microalgae

14 February 2018 / Kiel. When simulating future environmental conditions researchers face a problem: laboratory experiments are easy to control and to reproduce, but are insufficient to mimic the complexity of natural ecosystems. In contrast, experiments under real conditions in nature are much more...

Bathymetric map of the the Cap Blanc landslide. Map: Morelia Urlaub/GEOMAR

Why the seafloor starts moving

13 February 2018 / Kiel. When the seabed loses its stability and starts to move, it often happens in much larger dimensions than landslides ashore - and at slopes with very low gradients. At the same time, discplacement of large amounts of sediment under water can cause devastating tsunamis. Howeve...



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Weather of Kiel at 09:40


Measuring Point Institute

Air temperature: 3,3°C
Water temperature: 3,6°C
Wind direction: 17°, NNE
Wind speed: 1,00 m/s

Measuring Point Light House

Air temperature: 2,2°C
Water temperature: 1,0°C
Wind direction: 30°, NNE
Wind speed: 1,66 m/s