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Journal articleFerguson DJ, Maclennan J, Bastow ID, et al., 2013,
Melting during late-stage rifting in Afar is hot and deep
, Nature, Vol: 499, Pages: 70-74, ISSN: 0028-0836Investigations of a variety of continental rifts and margins worldwide have revealed that a considerable volume of melt can intrude into the crust during continental breakup(1-8), modifying its composition and thermal structure. However, it is unclear whether the cause of voluminous melt production at volcanic rifts is primarily increased mantle temperature or plate thinning(1,2,8-12). Also disputed is the extent to which plate stretching or thinning is uniform or varies with depth with the entire continental lithospheric mantle potentially being removed before plate rupture(13-16). Here we show that the extensive magmatism during rifting along the southern Red Sea rift in Afar, a unique region of sub-aerial transition from continental to oceanic rifting, is driven by deep melting of hotter-than-normal asthenosphere. Petrogenetic modelling shows that melts are predominantly generated at depths greater than 80 kilometres, implying the existence of a thick upper thermo-mechanical boundary layer in a rift system approaching the point of plate rupture. Numerical modelling of rift development shows that when breakup occurs at the slow extension rates observed in Afar, the survival of a thick plate is an inevitable consequence of conductive cooling of the lithosphere, even when the underlying asthenosphere is hot. Sustained magmatic activity during rifting in Afar thus requires persistently high mantle temperatures, which would allow melting at high pressure beneath the thick plate. If extensive plate thinning does occur during breakup it must do so abruptly at a late stage, immediately before the formation of the new ocean basin(16).
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Journal articleMcRobie FH, Wang L-P, Onof C, et al., 2013,
A spatial-temporal rainfall generator for urban drainage design
, WATER SCIENCE AND TECHNOLOGY, Vol: 68, Pages: 240-249, ISSN: 0273-1223- Author Web Link
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- Citations: 17
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Journal articleDonaghey JE, Sohn E-H, Ashraf RS, et al., 2013,
Pyrroloindacenodithiophene polymers: the effect of molecular structure on OFET performance
, POLYMER CHEMISTRY, Vol: 4, Pages: 3537-3544, ISSN: 1759-9954- Author Web Link
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- Citations: 23
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Journal articleTodman LC, Ireson AM, Butler AP, et al., 2013,
Modelling vapor flow from a pervaporative irrigation system
, Vadose Zone Journal -
Journal articleKelley DI, Prentice IC, Harrison SP, et al., 2013,
A comprehensive benchmarking system for evaluating global vegetation models
, BIOGEOSCIENCES, Vol: 10, Pages: 3313-3340, ISSN: 1726-4170- Author Web Link
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- Citations: 102
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Journal articleWestacott P, Tumbleston JR, Shoaee S, et al., 2013,
On the role of intermixed phases in organic photovoltaic blends
, Energy & Environmental Science, ISSN: 1754-5692 -
Journal articleEconomopoulos SP, Chochos CL, Ioannidou HA, et al., 2013,
Novel BODIPY-based conjugated polymers donors for organic photovoltaic applications
, RSC ADVANCES, Vol: 3, Pages: 10221-10229, ISSN: 2046-2069- Author Web Link
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- Citations: 29
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Journal articleSalari H, Hallett JP, Padervand M, et al., 2013,
Systems designed with an ionic liquid and molecular solvents to investigate the kinetics of an S<sub>N</sub>Ar reaction
, PROGRESS IN REACTION KINETICS AND MECHANISM, Vol: 38, Pages: 157-170, ISSN: 1468-6783- Author Web Link
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- Citations: 4
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Journal articleIreson AM, Butler AP, 2013,
A critical assessment of simple recharge models: application to the UK Chalk
, HYDROLOGY AND EARTH SYSTEM SCIENCES, Vol: 17, Pages: 2083-2096, ISSN: 1027-5606- Author Web Link
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- Citations: 19
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Journal articleRyder CL, Highwood EJ, Rosenberg PD, et al., 2013,
Optical properties of Saharan dust aerosol and contribution from the coarse mode as measured during the Fennec 2011 aircraft campaign
, ATMOSPHERIC CHEMISTRY AND PHYSICS, Vol: 13, Pages: 303-325, ISSN: 1680-7316- Author Web Link
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- Citations: 131
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Journal articleCharman DJ, Beilman DW, Blaauw M, et al., 2013,
Climate-related changes in peatland carbon accumulation during the last millennium
, BIOGEOSCIENCES, Vol: 10, Pages: 929-944, ISSN: 1726-4170- Author Web Link
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- Citations: 237
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Journal articleHadden RM, Rein G, Belcher CM, 2013,
Study of the competing chemical reactions in the initiation and spread of smouldering combustion in peat
, PROCEEDINGS OF THE COMBUSTION INSTITUTE, Vol: 34, Pages: 2547-2553, ISSN: 1540-7489- Author Web Link
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- Citations: 79
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Book chapterReich S, Cotter CJ, 2013,
Ensemble filter techniques for intermittent data assimilation
, Large Scale Inverse Problems. Computational Methods and Applications in the Earth Sciences, Editors: Cullen, Freitag, Kindermann, Scheichl, Publisher: Walter de Gruyter, Berlin, Pages: 1-46 -
Journal articleJones GA, Kendall J-M, Bastow ID, et al., 2013,
On locating microseismic events using borehole data
, Geophysical Prospecting, Pages: 1-16 -
Conference paperBertolli C, Betts A, Mudalige GR, et al., 2013,
Compiler optimizations for industrial unstructured mesh CFD applications on GPUs
, International Workshop on Languages and Compilers for Parallel Computing (LCPC), Publisher: Springer, Pages: 112-126 -
Book chapterWaterman RJ, Klooster MR, Hentrich H, et al., 2013,
Species interactions of mycoheterotrophic plants: specialization and its potential consequences.
, Mycoheterotrophy, Editors: Merckx, New York, Publisher: Springer, Pages: 267-296, ISBN: 978-1-4614-5209-6 -
Book chapterGennaioli C, Martin R, Muuls M, 2013,
Using micro data to examine causal effects of climate policy
, Handbook on Energy and Climate Change -
Journal articleArmitage JJ, Dunkley Jones T, Duller RA, et al., 2013,
Temporal buffering of climate-driven sediment flux cycles by transient catchment response
, EARTH AND PLANETARY SCIENCE LETTERS, Vol: 369-370, Pages: 200-210 -
Journal articleJackson CA-L, Chua ST, Bell RE, et al., 2013,
Structural style and early stage growth of inversion structures: 3D seismic insights from the Egersund Basin, offshore Norway
, Journal of Structural Geology, Vol: 46, Pages: 167-185 -
Journal articleBragg FJ, Prentice IC, Harrison SP, et al., 2013,
Stable isotope and modelling evidence for CO<sub>2</sub> as a driver of glacial-interglacial vegetation shifts in southern Africa
, BIOGEOSCIENCES, Vol: 10, Pages: 2001-2010, ISSN: 1726-4170- Author Web Link
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- Citations: 29
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Conference paperReeve MT, Bell RE, Jackson CA-L, 2013,
The influence of Caledonian structures on Late Jurassic faulting offshore western Norway: new insights from 3D seismic reflection data, STUDENT ORAL PRESENTATION PRIZE WINNER
, Tectonic Studies Group Annual Meeting -
Conference paperBell RE, Jackson CA-L, Whipp PS, et al., 2013,
Quantifying the timing and magnitude of fault reactivation in the northern North Sea
, Tectonic Studies Group Annual Meeting -
Conference paperBell RE, McNeill LC, Nixon C, et al., 2013,
Basin evolution and the distribution of strain within the Gulf of Corinthrift
, EGU General Assembly -
Journal articleDarbyshire FA, Eaton DW, Bastow ID, 2013,
Seismic imaging of the lithosphere beneath Hudson Bay: Episodic growth of the Laurentian mantle keel
, Earth and Planetary Science Letters, Vol: 373, Pages: 179-193 -
Journal articleJacobs CT, Collins GS, Piggott MD, et al., 2013,
Multiphase flow modelling of volcanic ash particle settling in water using adaptive unstructured meshes
, Geophysical Journal International, Vol: 192, Pages: 647-665Small-scale experiments of volcanic ash particle settling in water have demonstrated that ash particles can either settle slowly and individually, or rapidly and collectively as a gravitationally unstable ash-laden plume. This has important implications for the emplacement of tephra deposits on the seabed. Numerical modelling has the potential to extend the results of laboratory experiments to larger scales and explore the conditions under which plumes may form and persist, but many existing models are computationally restricted by the fixed mesh approaches that they employ. In contrast, this paper presents a new multiphase flow model that uses an adaptive unstructured mesh approach. As a simulation progresses, the mesh is optimized to focus numerical resolution in areas important to the dynamics and decrease it where it is not needed, thereby potentially reducing computational requirements. Model verification is performed using the method of manufactured solutions, which shows the correct solution convergence rates. Model validation and application considers 2-D simulations of plume formation in a water tank which replicate published laboratory experiments. The numerically predicted settling velocities for both individual particles and plumes, as well as instability behaviour, agree well with experimental data and observations. Plume settling is clearly hindered by the presence of a salinity gradient, and its influence must therefore be taken into account when considering particles in bodies of saline water. Furthermore, individual particles settle in the laminar flow regime while plume settling is shown (by plume Reynolds numbers greater than unity) to be in the turbulent flow regime, which has a significant impact on entrainment and settling rates. Mesh adaptivity maintains solution accuracy while providing a substantial reduction in computational requirements when compared to the same simulation performed using a fixed mesh, highlighting the benefits of an adapt
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Journal articleHassan MHA, Johnson HD, Allison PA, et al., 2013,
Sedimentology and stratigraphic development of the upper Nyalu Formation (Early Miocence), Sarawak, Malaysia: A mixed wave and tide influenced coastal system
, Journal of Asian Earth Sciences -
Journal articleHayes-Labruto L, Schillebeeckx SJD, Workman M, et al., 2013,
Contrasting Perspectives on China's Rare Earth Policies: Reframing the Debate through a Stakeholder Lens
, Energy PolicyThis article critically compares China’s rare earth policy with perspectives upheld in the rest of the world (ROW). We introduce rare earth elements and their importance for energy and present how China and the ROW are framing the policy debate. We find strongly dissonant views with regards to motives for foreign direct investment, China’s two-tiered pricing structure and its questionable innovation potential. Using the metaphor of “China Inc.”, we compare the Chinese government to a socially responsible corporation that aims to balance the needs of its internal stakeholders with the demands from a resource-dependent world. We find that China’s internal stakeholders have more power and legitimacy in the REE debate than the ROW and reconceptualise various possible mitigation strategies that could change current international policy and market dynamics. As such, we aim to reframe the perspectives that seem to govern the West and argue in favour of policy formation that explicitly acknowledges China’s triple bottom line ambitions and encourages the ROW to engage with China in a more nuanced manner.
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Journal articleAllen PA, Armitage JJ, Carter A, et al., 2013,
The Qs problem: Sediment volumetric balance of proximal foreland basin systems
, SEDIMENTOLOGY, Vol: 60, Pages: 102-130 -
Journal articleVaissier V, Barnes P, Kirkpatrick J, et al., 2013,
Influence of polar medium on the reorganization energy of charge transfer between dyes in a dye sensitized film
, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 15, Pages: 4804-4814, ISSN: 1463-9076- Author Web Link
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- Citations: 75
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Journal articleBrandt A, Grasvik J, Hallett JP, et al., 2013,
Deconstruction of lignocellulosic biomass with ionic liquids
, Green Chem., Vol: 15, Pages: 550-583-550-583This paper reviews the application of ionic liquids to the deconstruction and fractionation of lignocellulosic biomass, in a process step that is commonly called pretreatment. It is divided into four parts: the first gives background information on lignocellulosic biomass and ionic liquids; the second focuses on the solubility of lignocellulosic biomass (and the individual biopolymers within it) in ionic liquids; the third emphasises the deconstruction effects brought about by the use of ionic liquids as a solvent; the fourth part deals with practical considerations regarding the design of ionic liquid based deconstruction processes.
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