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Two ice streams—indicated by buried folds—extending into the interior of the northeastern Greenland ice sheet deactivated in the Holocene as the drainage basin flow regime reorganized southwards, according to an analysis of radio-echo sounding data.
A large, slow-moving landslide underlying the city of Bukavu in the Democratic Republic of the Congo has accelerated in recent decades due to hydrological modifications related to urbanization, according to an analysis of aerial photographs and remote-sensing data.
The advance and retreat of the West Antarctic Ice Sheet were primarily paced by 41,000-year-long obliquity cycles, not longer eccentricity cycles, until 400,000 years ago, according to sedimentological and palaeomagnetic records from the Ross Embayment.
Greening of the planet has increased global surface water availability, but vegetation changes can have diverse local and remote impacts across different regions.
Field experiments suggest that long-term responses of soil respiration and carbon emissions to nitrogen deposition in tropical forests can be divided into different phases as soil environment and biological response change.
The amount and composition of carbon compounds released from plant roots into soil influences soil carbon formation and loss, according to an artificial root exudate experiment using intact soil cores from a temperate forest.
In situ measurements reveal that high pressure in the deep ocean doesn’t lead to elevated community-level microbial metabolic rates, in contrast to previous shipboard analyses made at atmospheric pressure.
Neoarchaean arc magmas in Superior Province, Canada, were relatively oxidized and sulfur rich, reaching compositions comparable to modern subduction zones by approximately 2.7 Ga, according to analysis of sulfur speciation in zircon-hosted apatite grains.
The spatial and temporal geochemical variability of alkaline hydrothermal systems in shallow waters could support prebiotic chemical reactions required for the emergence of life.
Ecosystem modelling suggests that a range of growth conditions and ecological selection of phytoplankton explain global patterns of C:N:P ratios in marine organic matter.
Accounting for deep, cross-shelf carbon export into the Nansen Basin increases the carbon sequestration of the Barents Sea region of the Arctic Ocean by some 30%, according to numerical modelling supported by observational data.
Disruption of sediment flows along the eastern Australia coast due to the Middle Pleistocene formation of Fraser Island set the stage for Great Barrier Reef initiation, according to optically stimulated luminescence and palaeomagnetic dating of sand dunes.
An analysis of elastic lithospheric thickness suggests most coronae on Venus form on thin lithosphere with heat flow similar to that of rift zones on Earth, supporting a planet with active rifting and a squishy-lid convective regime.
Annual variations of phytoplankton biomass can be explained by processes acting on small spatio-temporal scales, according to a global analysis of satellite observations of sea surface chlorophyll and temperature from 1999 to 2018.
Jörg Hermann suggests that as the process of serpentinization leads to clean energy generation, metal separation and carbon sequestration, it could serve as a natural analogue for a sequential economy.
Nature Geoscience spoke with Dr Qingyang Hu, a high-pressure mineralogist at HPSTAR; Prof. Suzan van der Lee, a geophysicist at Northwestern University; and Prof. Katherine Kelley, a geochemist at the University of Rhode Island about their work and what the future of deep-water research might bring.