• Impact of increasing carbon dioxide on dinitrogen and carbon fixation rates under oligotrophic conditions and simulated upwelling 

  Singh, Arvind; Bach, Lennart T.; Löscher, Carolin R.; Paul, Allanah J.; Ojha, Narendra; Riebesell, Ulf (Limnology and Oceanography, 2021-06-04)

  Dinitrogen (N2) fixation is a major source of bioavailable nitrogen to oligotrophic ocean communities. Yet, we have limited understanding how ongoing climate change could alter N2 fixation. Most of our understanding is ...

• On the Propagation of Reaction Fronts in a Sandy Aquifer Over 20+ Years: Lessons From a Test Site in Northwestern Germany 

  Houben, Georg J.; Post, Vincent E. A.; Gröger‐Trampe, Jens; Pesci, María H.; Sültenfuß, Jürgen (Water Resources Research, 2021-08-09)

  Despite reduction measures, nitrate and aluminum concentrations remain high in aquifers in northwestern Europe. To evaluate the effectiveness of groundwater protection policies, the long‐term fate of these contaminants in ...

• Resolution of a bent‐crystal spectrometer for X‐ray free‐electron laser pulses: diamond versus silicon 

  Kaganer, Vladimir M.; Petrov, Ilia; Samoylova, Liubov (Acta Crystallographica Section A, 2021-05-27)

  The resolution function of a spectrometer based on a strongly bent single crystal (bending radius of 10 cm or less) is evaluated. It is shown that the resolution is controlled by two parameters: (i) the ratio of the lattice ...

• Formation of Small Craters in the Lunar Regolith: How Do They Influence the Preservation of Ancient Melt at the Surface? 

  Liu, Tiantian; Michael, Greg; Haber, Thomas; Wünnemann, Kai (Journal of Geophysical Research: Planets, 2021-05-11)

  The impact melt that records the formation time of basins is essential for the understanding of the lunar bombardment history. To better understand melt distribution on the Moon, this study investigates mixing of melt by ...

• Deformation, CPO, and Elastic Anisotropy in Low‐Grade Metamorphic Serpentinites, Atlantis Massif Oceanic Core Complex 

  Kuehn, R.; Behrmann, J. H.; Stipp, M.; Kilian, R.; Leiss, B. (Geophysical Research Letters, 2021-04-28)

  Crystallographic preferred orientation (CPO) and the associated seismic anisotropy of serpentinites are important factors for the understanding of tectonic settings involving hydrated Earth´s mantle, for example, at ...

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