Dilution of 10Be in detrital quartz by earthquake-induced landslides: Implications for determining denudation rates and potential to provide insights into landslide sediment dynamics

West, A.J.; Hetzel, R.; Li, G.; Jin, Z.; Zhang, F.; Hilton, R.G.; Densmore, A.L.

doi:10.1016/j.epsl.2014.03.058

Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia (2018)
Journal Article
Frith, N., Hilton, R., Howarth, J., Gröcke, D., Fitzsimons, S., Croissant, T., …Densmore, A. (2018). Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia. Nature Geoscience, 11(10), 772-776. https://doi.org/10.1038/s41561-018-0216-3

Rapid ground accelerations during earthquakes can trigger landslides that disturb mountain forests and harvest carbon from soils and vegetation. Although infrequent over human timescales, these co-seismic landslides can set the rates of geomorphic pr... Read More about Carbon export from mountain forests enhanced by earthquake-triggered landslides over millennia.

Early Holocene sea level in the Canadian Beaufort Sea constrained by radiocarbon dates from a deep borehole in the Mackenzie Trough, Arctic Canada (2018)
Journal Article
O’Regan, M., Coxall, H., Hill, P., Hilton, R., Muschitiello, F., & Swärd, H. (2018). Early Holocene sea level in the Canadian Beaufort Sea constrained by radiocarbon dates from a deep borehole in the Mackenzie Trough, Arctic Canada. Boreas: An International Journal of Quaternary Research, 47(4), 1102-1117. https://doi.org/10.1111/bor.12335

Deglacial and Holocene relative sea level (RSL) in the Canadian Beaufort Sea was influenced by the timing and extent of glacial ice in the Mackenzie River corridor and adjacent coastal plains. Considerable evidence indicates extensive ice cover in th... Read More about Early Holocene sea level in the Canadian Beaufort Sea constrained by radiocarbon dates from a deep borehole in the Mackenzie Trough, Arctic Canada.

Connectivity as an Emergent Property of Geomorphic Systems (2018)
Journal Article
Wohl, E., Brierley, G., Cadol, D., Coulthard, T., Covino, T., Fryirs, K., …Sklar, L. (2019). Connectivity as an Emergent Property of Geomorphic Systems. Earth Surface Processes and Landforms, 44(1), 4-26. https://doi.org/10.1002/esp.4434

Connectivity describes the efficiency of material transfer between geomorphic system components such as hillslopes and rivers or longitudinal segments within a river network. Representations of geomorphic systems as networks should recognize that the... Read More about Connectivity as an Emergent Property of Geomorphic Systems.

Technical note: in situ measurement of flux and isotopic composition of CO2 released during oxidative weathering of sedimentary rocks (2018)
Journal Article
Soulet, G., Hilton, R., Garnett, M., Dellinger, M., Croissant, T., Ogrič, M., & Klotz, S. (2018). Technical note: in situ measurement of flux and isotopic composition of CO2 released during oxidative weathering of sedimentary rocks. Biogeosciences, 15(13), 4087-4102. https://doi.org/10.5194/bg-15-4087-2018

Oxidative weathering of sedimentary rocks can release carbon dioxide (CO2) to the atmosphere and is an important natural CO2 emission. Two mechanisms operate – the oxidation of sedimentary organic matter and the dissolution of carbonate minerals by s... Read More about Technical note: in situ measurement of flux and isotopic composition of CO2 released during oxidative weathering of sedimentary rocks.

Microbial oxidation of lithospheric organic carbon in rapidly eroding tropical mountain soils (2018)
Journal Article
Hemingway, J., Hilton, R., Hovius, N., Eglinton, T., Haghipour, N., Wacker, L., …Galy, V. (2018). Microbial oxidation of lithospheric organic carbon in rapidly eroding tropical mountain soils. Science, 360(6385), 209-212. https://doi.org/10.1126/science.aao6463

Lithospheric organic carbon (“petrogenic”; OCpetro) is oxidized during exhumation and subsequent erosion of mountain ranges. This process is a considerable source of carbon dioxide (CO2) to the atmosphere over geologic time scales, but the mechanisms... Read More about Microbial oxidation of lithospheric organic carbon in rapidly eroding tropical mountain soils.

Mountain glaciation drives rapid oxidation of rock-bound organic carbon (2017)
Journal Article
Horan, K., Hilton, R., Selby, D., Ottley, C., Gröcke, D., Hicks, M., & Burton, K. (2017). Mountain glaciation drives rapid oxidation of rock-bound organic carbon. Science Advances, 3(10), Article e1701107. https://doi.org/10.1126/sciadv.1701107

Over millions of years, the oxidation of organic carbon contained within sedimentary rocks is one of the main sources of carbon dioxide to the atmosphere, yet the controls on this emission remain poorly constrained. We use rhenium to track the oxidat... Read More about Mountain glaciation drives rapid oxidation of rock-bound organic carbon.

Earthquakes drive focused denudation along a tectonically active mountain front (2017)
Journal Article
Li, G., West, A., Densmore, A., Jin, Z., Zhang, F., Wang, J., …Hilton, R. (2017). Earthquakes drive focused denudation along a tectonically active mountain front. Earth and Planetary Science Letters, 472, 253-265. https://doi.org/10.1016/j.epsl.2017.04.040

Earthquakes cause widespread landslides that can increase erosional fluxes observed over years to decades. However, the impact of earthquakes on denudation over the longer timescales relevant to orogenic evolution remains elusive. Here we assess eros... Read More about Earthquakes drive focused denudation along a tectonically active mountain front.

Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance (2017)
Journal Article
Clark, K., Hilton, R., West, A., Robles Caceres, A., Grocke, D., Marthews, T., …Malhi, Y. (2017). Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance. Journal of Geophysical Research: Biogeosciences, 122(3), 449-469. https://doi.org/10.1002/2016jg003615

Productive forests of the Andes are subject to high erosion rates that supply to the Amazon River sediment and carbon from both recently photosynthesized biomass and geological sources. Despite this recognition, the source and discharge of particulat... Read More about Erosion of organic carbon from the Andes and its affects on ecosystem carbon dioxide balance.

Earthquake-triggered increase in biospheric carbon export from a mountain belt (2016)
Journal Article
Wang, J., Jin, Z., Hilton, R., Zhang, F., Li, G., Densmore, A., …West, A. (2016). Earthquake-triggered increase in biospheric carbon export from a mountain belt. Geology, 44(6), 471-474. https://doi.org/10.1130/g37533.1

On geological time scales, the erosion of carbon from the terrestrial biosphere and its burial in sediments can counter CO2 emissions from the solid Earth. Earthquakes may increase the erosion of this biospheric carbon and supply it to mountain river... Read More about Earthquake-triggered increase in biospheric carbon export from a mountain belt.

Connectivity of earthquake-triggered landslides with the fluvial network: implications for landslide sediment transport after the 2008 Wenchuan earthquake (2016)
Journal Article
Li, G., West, A., Densmore, A., Hammond, D., Jin, Z., Zhang, F., …Hilton, R. (2016). Connectivity of earthquake-triggered landslides with the fluvial network: implications for landslide sediment transport after the 2008 Wenchuan earthquake. Journal of Geophysical Research: Earth Surface, 121(4), 703-724. https://doi.org/10.1002/2015jf003718

Evaluating the influence of earthquakes on erosion, landscape evolution, and sediment-related hazards requires understanding fluvial transport of material liberated in earthquake-triggered landslides. The location of landslides relative to river chan... Read More about Connectivity of earthquake-triggered landslides with the fluvial network: implications for landslide sediment transport after the 2008 Wenchuan earthquake.

Storm-triggered landslides in the Peruvian Andes and implications for topography, carbon cycles, and biodiversity (2016)
Journal Article
Clark, K., West, A., Hilton, R., Asner, G., Quesada, C., Silman, M., …Malhi, Y. (2016). Storm-triggered landslides in the Peruvian Andes and implications for topography, carbon cycles, and biodiversity. Earth Surface Dynamics, 4(1), 47-70. https://doi.org/10.5194/esurf-4-47-2016

In this study, we assess the geomorphic role of a rare, large-magnitude landslide-triggering event and consider its effect on mountain forest ecosystems and the erosion of organic carbon in an Andean river catchment. Proximal triggers such as large r... Read More about Storm-triggered landslides in the Peruvian Andes and implications for topography, carbon cycles, and biodiversity.

Climate regulates the erosional carbon export from the terrestrial biosphere (2016)
Journal Article
Hilton, R. (2016). Climate regulates the erosional carbon export from the terrestrial biosphere. Geomorphology, 277, 118-132. https://doi.org/10.1016/j.geomorph.2016.03.028

Erosion drives the export of particulate organic carbon from the terrestrial biosphere (POCbiosphere) and its delivery to rivers. The carbon transfer is globally significant and can result in drawdown of atmospheric carbon dioxide (CO2) if the eroded... Read More about Climate regulates the erosional carbon export from the terrestrial biosphere.

Seismically enhanced solute fluxes in the Yangtze River headwaters following the A.D. 2008 Wenchuan earthquake (2015)
Journal Article
Jin, Z., West, A., Zhang, F., An, Z., Hilton, R., Yu, J., …Wang, X. (2016). Seismically enhanced solute fluxes in the Yangtze River headwaters following the A.D. 2008 Wenchuan earthquake. Geology, 44(1), 47-50. https://doi.org/10.1130/g37246.1

Large earthquakes alter physical and chemical processes at Earth’s surface, triggering landslides, fracturing rock, changing large-scale permeability, and influencing hydrologic pathways. The resulting effects on global chemical cycles are not fully... Read More about Seismically enhanced solute fluxes in the Yangtze River headwaters following the A.D. 2008 Wenchuan earthquake.

Decadal carbon discharge by a mountain stream is dominated by coarse organic matter (2015)
Journal Article
Turowski, J., Hilton, R., & Sparkes, R. (2016). Decadal carbon discharge by a mountain stream is dominated by coarse organic matter. Geology, 44(1), 27-30. https://doi.org/10.1130/g37192.1

Rapid erosion in mountain forests results in high rates of biospheric particulate organic carbon (POC) export by rivers, which can contribute to atmospheric carbon dioxide drawdown. However, coarse POC (CPOC) carried by particles >∼1 mm is rarely qua... Read More about Decadal carbon discharge by a mountain stream is dominated by coarse organic matter.

Erosion of organic carbon in the Arctic as a geological carbon dioxide sink (2015)
Journal Article
Hilton, R., Galy, V., Gaillardet, J., Dellinger, M., Bryant, C., O’Regan, M., …Calmels, D. (2015). Erosion of organic carbon in the Arctic as a geological carbon dioxide sink. Nature, 524(7563), 84-87. https://doi.org/10.1038/nature14653

Soils of the northern high latitudes store carbon over millennial timescales (thousands of years) and contain approximately double the carbon stock of the atmosphere1, 2, 3. Warming and associated permafrost thaw can expose soil organic carbon and re... Read More about Erosion of organic carbon in the Arctic as a geological carbon dioxide sink.

Controls on fluvial evacuation of sediment from earthquake-triggered landslides (2015)
Journal Article
Wang, J., Jin, Z., Hilton, R., Zhang, F., Densmore, A., Li, G., & West, A. (2015). Controls on fluvial evacuation of sediment from earthquake-triggered landslides. Geology, 43(2), 115-118. https://doi.org/10.1130/g36157.1

Large earthquakes in active mountain belts can trigger landslides, which mobilize large volumes of clastic sediment. Delivery of this material to river channels may result in aggradation and flooding, while sediment residing on hillslopes may increas... Read More about Controls on fluvial evacuation of sediment from earthquake-triggered landslides.

The hydrological regime of a forested tropical Andean catchment (2014)
Journal Article
Clark, K., Torres, M., West, A., Hilton, R., New, M., Horwath, A., …Malhi, Y. (2014). The hydrological regime of a forested tropical Andean catchment. Hydrology and Earth System Sciences, 18(12), 5377-5397. https://doi.org/10.5194/hess-18-5377-2014

The hydrology of tropical mountain catchments plays a central role in ecological function, geochemical and biogeochemical cycles, erosion and sediment production, and water supply in globally important environments. There have been few studies quanti... Read More about The hydrological regime of a forested tropical Andean catchment.

Lithium isotopes in large rivers reveal the cannibalistic nature of modern continental weathering and erosion (2014)
Journal Article
Dellinger, M., Gaillardet, J., Bouchez, J., Calmels, D., Galy, V., Hilton, R., …France-Lanord, C. (2014). Lithium isotopes in large rivers reveal the cannibalistic nature of modern continental weathering and erosion. Earth and Planetary Science Letters, 401, 359-372. https://doi.org/10.1016/j.epsl.2014.05.061

The erosion of major mountain ranges is thought to be largely cannibalistic, recycling sediments that were deposited in the ocean or on the continents prior to mountain uplift. Despite this recognition, it has not yet been possible to quantify the am... Read More about Lithium isotopes in large rivers reveal the cannibalistic nature of modern continental weathering and erosion.

Geological respiration of a mountain belt revealed by the trace element rhenium (2014)
Journal Article
Hilton, R., Gaillardet, J., Calmels, D., & Birck, J. (2014). Geological respiration of a mountain belt revealed by the trace element rhenium. Earth and Planetary Science Letters, 403, 27-36. https://doi.org/10.1016/j.epsl.2014.06.021

Oxidation of rock-derived, petrogenic, organic carbon (OCpetro) during weathering of sedimentary rocks is a major source of carbon dioxide (CO2) to the atmosphere. This geological respiration is thought to be enhanced by physical erosion, suggesting... Read More about Geological respiration of a mountain belt revealed by the trace element rhenium.

Dilution of 10Be in detrital quartz by earthquake-induced landslides: Implications for determining denudation rates and potential to provide insights into landslide sediment dynamics (2014)
Journal Article
West, A., Hetzel, R., Li, G., Jin, Z., Zhang, F., Hilton, R., & Densmore, A. (2014). Dilution of 10Be in detrital quartz by earthquake-induced landslides: Implications for determining denudation rates and potential to provide insights into landslide sediment dynamics. Earth and Planetary Science Letters, 396, 143-153. https://doi.org/10.1016/j.epsl.2014.03.058

The concentration of 10Be in detrital quartz (10Beqtz) from river sediments is now widely used to quantify catchment-wide denudation rates but may also be sensitive to inputs from bedrock landslides that deliver sediment with low 10Beqtz. Major lands... Read More about Dilution of 10Be in detrital quartz by earthquake-induced landslides: Implications for determining denudation rates and potential to provide insights into landslide sediment dynamics.

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