Entrained debris records regrowth of the Greenland Ice Sheet after the last interglacial [0.03%]
冰川记录显示上一个间冰期后格陵兰冰盖的再度扩张
Nicholas Holschuh,Knut Christianson,William Dienstfrey et al.
Nicholas Holschuh et al.
Radio echo sounding data reveal intensely deformed structures deep within the northern Greenland Ice Sheet. The geometry of these structures has been well studied, but their physical properties remain poorly understood. Here we investigate ...
Continental evolution influenced by relamination of deeply subducted continental crust [0.03%]
深俯冲大陆地壳再擦世对大陆演化的影響
Daniel Gómez-Frutos,Antonio Castro,Attila Balázs et al.
Daniel Gómez-Frutos et al.
Post-collisional magmatism has played a critical role in modifying the continental crust since the Archaean, 3 billion years ago. The dual mantle-crust signature of calc-alkaline post-collisional magmas requires a hybrid source involving bo...
Water isotope-temperature relationship variability across Antarctica set by atmospheric circulation [0.03%]
南极洲水同位素温度关系的变化由大气环流决定
Mathieu Casado,Adriana Bailey,Christophe Leroy-Dos Santos et al.
Mathieu Casado et al.
Water isotopes serve as tracers of hydrological processes and as proxies for past climates archived in ice cores. The isotopic signal is acquired throughout the hydrological cycle-through evaporation over the oceans, precipitation, which oc...
Luc Lenain,Kaushik Srinivasan,Roy Barkan et al.
Luc Lenain et al.
Oceanic submesoscale currents dominate the vertical exchanges of heat, biological nutrients and carbon between the shallow and the deep ocean and strongly influence the lateral dispersion of biogeochemical tracers and pollutants. Observing ...
Max J van Gerrevink,Sander Veraverbeke,Sol Cooperdock et al.
Max J van Gerrevink et al.
The boreal forest biome is warming rapidly, impacting disturbance regimes and global climate. Boreal forest fires have intensified, initiating both climate warming (positive) and climate cooling (negative) impacts across spatial and tempora...
Millennial-aged peat carbon outgassed by large humic lakes in the Congo Basin [0.03%]
刚果盆地大型腐泥湖释放万年泥炭碳
Travis W Drake,Jordon D Hemingway,Matti Barthel et al.
Travis W Drake et al.
Congo Basin lakes Mai Ndombe and Tumba are major CO2 sources. Here we show that their dissolved inorganic carbon is some 2,170-3,515 14C years old and partially (39-40%) originates from the surrounding peatlands. This implies a loss pathway...
Andrew K Sweetman,Alycia J Smith,Danielle S W de Jonge et al.
Andrew K Sweetman et al.
Deep-seafloor organisms consume oxygen, which can be measured by in situ benthic chamber experiments. Here we report such experiments at the polymetallic nodule-covered abyssal seafloor in the Pacific Ocean in which oxygen increased over tw...
A J Biggin,C J Davies,J E Mound et al.
A J Biggin et al.
Heat flowing from the core to the mantle drives the geodynamo that produces Earth's global magnetic field. Palaeomagnetic measurements record the behaviour of this field through time and have the potential to inform us about deep Earth stru...
David Wallis,Kathryn M Kumamoto,Thomas Breithaupt
David Wallis
Flow of Earth's upper mantle has long been considered to occur by slow, near-continuous creep. This behaviour is observed in classical high-temperature deformation experiments and is a fundamental component of geodynamic models. The latest ...
Oligocene deep ocean oxygen isotope variations primarily driven by temperature [0.03%]
始新世深海氧同位素变化主要受温度控制
Flavia Boscolo-Galazzo,Victoria E Taylor,Eirik V Galaasen et al.
Flavia Boscolo-Galazzo et al.
Our understanding of the long-term behaviour of global climate and the Antarctic ice sheet relies heavily on the oxygen isotopic composition of marine calcite (δ18Ocalcite), which reflects a combination of ocean temperature and the amount ...