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An open access, online-only journal, dedicated to publishing high-quality papers that describe the significant and cutting-edge research that continues to ensure the supply of clean water to populations.
Iron entangled p157 doi:10.1038/ngeo2913 Iron is an essential fuel for life in the oceans. The influence of this element on biogeochemistry — and nitrogen cycling in particular — varies across environments and time.
Subsea mining moves closer to shore pp158 - 159 Mark Hannington, Sven Petersen & Anna Kratschell doi:10.1038/ngeo2897 Mining the deep seabed is fraught with challenges. Untapped mineral potential under the shallow, more accessible continental shelf could add a new dimension to offshore mining and help meet future mineral demand.
Geodynamics: Surviving mantle convection p161 Frederic Deschamps doi:10.1038/ngeo2905 Hints from seismic tomography and geochemistry indicate that Earth's mantle is heterogeneous at large scale. Numerical simulations of mantle convection show that, if it started enriched in silicates, the lower mantle may remain unmixed today. See also:Article by Ballmer et al.
An open access, online-only journal providing researchers, policy makers and the public with the latest research on weather and climate, publishing high-quality papers that focus on topics including climate dynamics, climate variability, weather and climate prediction, climate change, weather extremes, atmospheric composition including aerosols, the hydrological cycle and atmosphere-ocean interactions.
Carbon sequestration in the deep Atlantic enhanced by Saharan dust pp189 - 194 Katsiaryna Pabortsava, Richard S. Lampitt, Jeff Benson, Christian Crowe, Robert McLachlan et al. doi:10.1038/ngeo2899 Dust-borne nutrients can enhance productivity in the surface ocean. Two years of sediment trap data reveal that dust enhances carbon export to depth by increasing surface nitrogen fixation, productivity and carbon sinking rates in the North Atlantic.
doi:10.1038/ngeo2886 Fixed nitrogen is lost from oxygen minimum zones. Experimental data from an anoxic lake show that the presence of Fe(II) limits this loss, suggesting that ancient anoxic and iron-rich oceans may not have been nitrogen limited.
Evolution of carbonated melt to alkali basalt in the South China Sea pp229 - 235 Guo-Liang Zhang, Li-Hui Chen, Matthew G. Jackson & Albrecht W. Hofmann doi:10.1038/ngeo2877 Carbonated silicate melts are expected to exist in the mantle, but have been elusive in nature. Geochemical analyses of rocks from the South China Sea identify such melts formed in the mantle and erupted at the surface through thin lithosphere.
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