Luminescence; Tectonics; Thermochronometry; Geochronology; Geomorphology; Electron Spin Resonance
Lehmann Benjamin, Herman Frédéric, Valla Pierre G., King Georgina E., Biswas Rabiul H., Ivy-Ochs Susan, Steinemann Olivia, Christl Marcus (2019), Postglacial erosion of bedrock surfaces and deglaciation timing: New insights from the Mont Blanc massif (western Alps), in Geology
Strebler David, Riedesel Svenja, King Georgina, Brill Dominik, Brückner Helmut (2019), LumReader: Designing your luminescence experiment with R, in Radiation Measurements
, 129, 106143-106143.
AultAlexis, GautheronCécile, KingGeorgina (2019), Innovations in (U–Th)/He, Fission Track, and Trapped Charge Thermochronometry with Applications to Earthquakes, Weathering, Surface‐Mantle Connections, and the Growth and Decay of Mountains, in Tectonics
Lehmann Benjamin, Herman Frédéric, Valla Pierre G., King Georgina E., Biswas Rabiul H. (2019), Evaluating post-glacial bedrock erosion and surface exposure duration by coupling in situ optically stimulated luminescence and 10 Be dating, in Earth Surface Dynamics
, 7(3), 633-662.
Armitage S.J., Krishna A., Parker L.E., King G.E. (2019), Optically stimulated luminescence dating of heat retainer hearths from the Sahara: Insights into signal accumulation and measurement, in Quaternary Geochronology
, 49, 249-253.
Bartz M., Arnold L.J., Demuro M., Duval M., King G.E., Rixhon G., Álvarez Posada C., Parés J.M., Brückner H. (2019), Single-grain TT-OSL dating results confirm an Early Pleistocene age for the lower Moulouya River deposits (NE Morocco), in Quaternary Geochronology
, 49, 138-145.
KingGeorgina, VallaPierre, LehmannBenjamin (2019), OSL Rock Surface and Rock Surface-Exposure Dating, in Bailiff Ian, Bateman Mark (ed.), Whittles Publishing, UK, 1-400.
King Georgina E., Burow Christoph, Roberts Helen M., Pearce Nicholas J.G. (2018), Age determination using feldspar: Evaluating fading-correction model performance, in Radiation Measurements
, 119, 58-73.
Discher Michael, Mauz Barbara, Martin Loïc, Durcan Julie A., King Georgina E., Tsakalos Evangelos, Christodoulakis John, Lang Andreas (2018), Calculating or simulating the dose rate? A comparison, in Radiation Measurements
Riedesel Svenja, King Georgina E., Prasad Amit Kumar, Kumar Raju, Finch Adrian A., Jain Mayank (2018), Optical determination of the width of the band-tail states, and the excited state and ground state energies of the principal dosimetric trap in feldspar, in Radiation Measurements
Tsukamoto Sumiko, Long Hao, Richter Marcus, Li Yan, King Georgina E., He Zhong, Yang Linhai, Zhang Jingran, Lambert Renske (2018), Quartz natural and laboratory ESR dose response curves: A first attempt from Chinese loess, in Radiation Measurements
Biswas R.H., Herman F., King G.E., Braun J. (2018), Thermoluminescence of feldspar as a multi-thermochronometer to constrain the temporal variation of rock exhumation in the recent past, in Earth and Planetary Science Letters
, 495, 56-68.
Diaz Nathalie, Dietrich Fabienne, Sebag David, King Georgina E., Valla Pierre G., Durand Alain, Garcin Yannick, de Saulieu Geoffroy, Deschamps Pierre, Herman Frédéric, Verrecchia Eric P. (2018), Pedo-sedimentary constituents as paleoenvironmental proxies in the Sudano-Sahelian belt during the Late Quaternary (southwestern Chad Basin), in Quaternary Science Reviews
, 191, 348-362.
Yukihara E.G., Coleman A.C., Biswas R.H., Lambert R., Herman F., King G.E. (2018), Thermoluminescence analysis for particle temperature sensing and thermochronometry: Principles and fundamental challenges, in Radiation Measurements
Riedesel Svenja, Brill Dominik, Roberts Helen M., Duller Geoff A.T., Garrett Ed, Zander Anja M., King Georgina E., Tamura Toru, Burow Christoph, Cunningham Alastair, Seeliger Martin, De Batist Marc, Heyvaert Vanessa M.A., Fujiwara Osamu, Brückner Helmut (2018), Single-grain feldspar luminescence chronology of historical extreme wave event deposits recorded in a coastal lowland, Pacific coast of central Japan, in Quaternary Geochronology
, 45, 37-49.
Bartz Melanie, Rixhon Gilles, Duval Mathieu, King Georgina E., Álvarez Posada Claudia, Parés Josep M., Brückner Helmut (2018), Successful combination of electron spin resonance, luminescence and palaeomagnetic dating methods allows reconstruction of the Pleistocene evolution of the lower Moulouya river (NE Morocco), in Quaternary Science Reviews
, 185, 153-171.
Schmidt Christoph, Friedrich Johannes, Adamiec Grzegorz, Chruścińska Alicja, Fasoli Mauro, Kreutzer Sebastian, Martini Marco, Panzeri Laura, Polymeris Georgios S., Przegiętka Krzysztof, Valla Pierre G., King Georgina E., Sanderson David C.W. (2018), How reproducible are kinetic parameter constraints of quartz luminescence? An interlaboratory comparison for the 110 °C TL peak, in Radiation Measurements
, 110, 14-24.
Lehmann Benjamin, Valla Pierre G., King Georgina E., Herman Frédéric (2018), Investigation of OSL surface exposure dating to reconstruct post-LIA glacier fluctuations in the French Alps (Mer de Glace, Mont Blanc massif), in Quaternary Geochronology
, 44, 63-74.
Wang Yuheng, Le Pape Pierre, Morin Guillaume, Asta Maria P., King Georgina, Bártová Barbora, Suvorova Elena, Frutschi Manon, Ikogou Maya, Pham Vu Hoai Cong, Vo Phu Le, Herman Frédéric, Charlet Laurent, Bernier-Latmani Rizlan (2018), Arsenic Speciation in Mekong Delta Sediments Depends on Their Depositional Environment, in Environmental Science & Technology
, 52(6), 3431-3439.
Herman Frédéric, King Georgina E. (2018), Luminescence Thermochronometry: Investigating the Link between Mountain Erosion, Tectonics and Climate, in Elements
, 14(1), 33-38.
KingGeorgina, TsukamotoSumiko, HermanFrédéric, BiswasRabiul, SueokaShigeru, TagamiTakahiro, ESR-thermochronometry of the Hida range of the Japanese Alps: Validation and future potential, in Geochronology
The height of mountain ranges evolve in response to tectonic uplift, erosion and climate change, but the feedbacks between these processes, particularly how topography records tectonic uplift, is poorly understood. The interplay between tectonics, climate and surface processes remains one of the most active debates in Earth Science. This feedback is particularly strong in the Japanese Alps, yet it has not been investigated. Landsliding is a key erosion process in mountainous seismically active terrain, and sediments released from erosion processes can enhance seismic activity through deposition within the subduction trench. Enhanced seismicity can result in increased landsliding further accelerating erosion rates. Organic matter entrainment within landslide debris and the weathering of silicate rocks influences the global carbon cycle, and can thus feedback onto climate. However recent studies have suggested that anthropogenic activity has reduced the sediment flux in Japan, potentially affecting feedbacks between erosion and seismicity. The objective of this proposal is to quantify erosion rates in the Japanese Alps over timescales of 10^4-6 yrs, and to elucidate the role it plays in linking climate with tectonics. Contrasting recent (10^0-3 yr) and historical (10^4-6 yr) erosion rates may also reveal anthropogenic effects on feedbacks between erosion, seismic and landslide hazards.Japan is one of the most tectonically active locations on Earth. It is situated adjacent to two triple junctions between four tectonic plates: the Philippine Sea, North American, Eurasian and North American plates. Within this convergent zone, the Japanese Alps are thought to have been uplifted within the last 1 to 2 Myr. Whilst undoubtedly tectonically driven, this mountain-building may also have been coincident with the onset of the Quaternary period, and the associated global climatic transition to ice-house conditions. Extremely high rates of precipitation (>3,000 mm/yr) coupled with earthquake enhanced landsliding potentially make the Japanese Alps one of the most rapidly exhuming places on Earth. However the rate of exhumation and the topographic evolution of this significant tectono-climatic setting remain poorly constrained. Quantifying exhumation rates will provide insights into the tectonic evolution of the Japanese Alps as well as an improved understanding of the coupling between tectonics and climate through erosion processes. Thermochronometry enables exhumation rates to be determined from the measurement of rates of rock cooling. The newly developed multi-OSL-thermochronometry system is sensitive to temperatures of as low as ~25 °C, enabling constraint of late-Quaternary exhumation histories at an unprecedented resolution. The use of multiple signals measured from different feldspar mineral extracts of the same sample enables the determination of precise cooling histories. OSL-thermochronometry techniques are applicable over timescales of up to 10^5 yrs because of saturation of the luminescence signal. Electron spin resonance (ESR)-thermochronometry is a related trapped-charge low-temperature thermochronometery system, sensitive to temperatures of ~50-80 °C, but which offers an advantage over multi-OSL-thermochronometry of later signal saturation at =10^6 yrs. This technique will be developed in this project to enable the complete Quaternary exhumation of the Japanese Alps to be resolved. Furthermore, whilst the limitation of signal saturation presently restricts the application of multi-OSL-thermochronometry to the most rapidly exhuming terrains, ESR-thermochronometry will be more widely applicable, and will be especially useful in areas where the application of (U-Th-Sm)/He apatite dating is challenging (e.g. New Zealand). Using an integrated approach of multi-OSL, ESR- and (U-Th-Sm)/He apatite-thermochronometry will enable the exhumation history of the Japanese Alps over timescales of 10^4-6 yrs to be precisely determined for the first time. Using these methods, exhumation rates will be quantified across the three main ranges of the Japanese Alps (the Kiso, Hida and Akaishi ranges), and their spatial and temporal variability investigated. Climate is relatively homogeneous across these ranges, providing ideal conditions to explore the relationship between exhumation and tectonic processes. Temporally consistent changes in exhumation rates across all ranges may reveal the effects of global climatic changes.