Outputs (9)

An Abrupt Aging of Dissolved Organic Carbon in Large Arctic Rivers (2020)
Journal Article
Schwab, M., Hilton, R., Raymond, P., Haghipour, N., Amos, E., Tank, S., …Eglinton, T. (2020). An Abrupt Aging of Dissolved Organic Carbon in Large Arctic Rivers. Geophysical Research Letters, 47(23), Article e2020GL088823. https://doi.org/10.1029/2020gl088823

Permafrost thaw in Arctic watersheds threatens to mobilize hitherto sequestered carbon. We examine the radiocarbon activity (F14C) of dissolved organic carbon (DOC) in the northern Mackenzie River basin. From 2003‐2017, DOC‐F14C signatures (1.00 ± 0.... Read More about An Abrupt Aging of Dissolved Organic Carbon in Large Arctic Rivers.

Integrating suspended sediment flux in large alluvial river channels: Application of a synoptic Rouse‐based model to the Irrawaddy and Salween rivers (2020)
Journal Article
Baronas, J. J., Stevenson, E. I., Hackney, C. R., Darby, S. E., Bickle, M. J., Hilton, R. G., …Tipper, E. T. (2020). Integrating suspended sediment flux in large alluvial river channels: Application of a synoptic Rouse‐based model to the Irrawaddy and Salween rivers. Journal of Geophysical Research: Earth Surface, 125(9), https://doi.org/10.1029/2020jf005554

A large portion of freshwater and sediment is exported to the ocean by a small number 22 of major rivers. Many of these mega-rivers are subject to substantial anthropogenic pres23 sures, which are having a major impact on water and sediment delivery... Read More about Integrating suspended sediment flux in large alluvial river channels: Application of a synoptic Rouse‐based model to the Irrawaddy and Salween rivers.

Transformation of organic matter in a Barents Sea sediment profile: coupled geochemical and microbiological processes (2020)
Journal Article
Stevenson, M. A., Faust, J. C., Andrade, L. L., Freitas, F. S., Gray, N. D., Tait, K., …Abbott, G. D. (2020). Transformation of organic matter in a Barents Sea sediment profile: coupled geochemical and microbiological processes. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 378(2181), https://doi.org/10.1098/rsta.2020.0223

Process-based, mechanistic investigations of organic matter transformation and diagenesis directly beneath the sediment–water interface (SWI) in Arctic continental shelves are vital as these regions are at greatest risk of future change. This is in p... Read More about Transformation of organic matter in a Barents Sea sediment profile: coupled geochemical and microbiological processes.

Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? (2020)
Journal Article
Faust, J. C., Stevenson, M. A., Abbott, G. D., Knies, J., Tessin, A., Mannion, I., …März, C. (2020). Does Arctic warming reduce preservation of organic matter in Barents Sea sediments?. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 378(2181), Article 20190364. https://doi.org/10.1098/rsta.2019.0364

Over the last few decades, the Barents Sea experienced substantial warming, an expansion of relatively warm Atlantic water and a reduction in sea ice cover. This environmental change forces the entire Barents Sea ecosystem to adapt and restructure an... Read More about Does Arctic warming reduce preservation of organic matter in Barents Sea sediments?.

Mountains, erosion and the carbon cycle (2020)
Journal Article
Hilton, R., & West, A. (2020). Mountains, erosion and the carbon cycle. Nature Reviews Earth & Environment, 1(6), 284-299. https://doi.org/10.1038/s43017-020-0058-6

Mountain building results in high erosion rates and the interaction of rocks with the atmosphere, water and life. Carbon transfers that result from increased erosion could control the evolution of Earth’s long-term climate. For decades, attention has... Read More about Mountains, erosion and the carbon cycle.

Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes (2020)
Journal Article
Wang, J., Howarth, J. D., McClymont, E. L., Densmore, A. L., Fitzsimons, S. J., Croissant, T., …Hilton, R. G. (2020). Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes. Science Advances, 6(23), Article eaaz6446. https://doi.org/10.1126/sciadv.aaz6446

Widespread triggering of landslides by large storms or earthquakes is a dominant mechanism of erosion in mountain landscapes. If landslides occur repeatedly in particular locations within a mountain range, then they will dominate the landscape evolut... Read More about Long-term patterns of hillslope erosion by earthquake-induced landslides shape mountain landscapes.

Efficient preservation of young terrestrial organic carbon in sandy turbidity current deposits (2020)
Journal Article
Hage, S., Galy, V., Cartigny, M., Acikalin, S., Clare, M., Gröcke, D., …Talling, P. (2020). Efficient preservation of young terrestrial organic carbon in sandy turbidity current deposits. Geology, 48(9), 882-887. https://doi.org/10.1130/g47320.1

Burial of terrestrial biospheric particulate organic carbon in marine sediments removes CO2 from the atmosphere, regulating climate over geologic time scales. Rivers deliver terrestrial organic carbon to the sea, while turbidity currents transport ri... Read More about Efficient preservation of young terrestrial organic carbon in sandy turbidity current deposits.

Unravelling the controls on the molybdenum isotopic composition of rivers (2020)
Journal Article
Horan, K., Hilton, R., McCoy-West, A., Selby, D., Tipper, E., Hawley, S., & Burton, K. (2020). Unravelling the controls on the molybdenum isotopic composition of rivers. Geochemical perspectives letters, 13(1), 13-18. https://doi.org/10.7185/geochemlet.2007

Formation and crystallisation of the Lunar Magma Ocean (LMO) was one of the most incisive events during the early evolution of the Moon. Lunar Magma Ocean solidification concluded with the coeval formation of K-, REE- and P-rich components (KREEP) an... Read More about Unravelling the controls on the molybdenum isotopic composition of rivers.

Measurements of rhenium isotopic composition in low-abundance samples (2020)
Journal Article
Dellinger, M., Hilton, R. G., & Nowell, G. M. (2020). Measurements of rhenium isotopic composition in low-abundance samples. Journal of Analytical Atomic Spectrometry, 35(2), 377-387. https://doi.org/10.1039/c9ja00288j

Rhenium (Re) is a trace element whose redox chemistry makes it an ideal candidate to trace a range of geochemical processes. In particular, fractionation of its isotopes 187Re (62.6% abundance) and 185Re (37.4%) may be used to improve our understandi... Read More about Measurements of rhenium isotopic composition in low-abundance samples.