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Conference paperWilkinson S, Brosse A, Coop MR, et al., 2011,
An Integrated Geotechnical Study of UK Mudrocks
, 15th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE), Publisher: Millpress, Pages: 305-310 -
Conference paperJardine RJ, Aldridge T, Evans TG, 2011,
Offshore foundation engineering in extremely dense glacial tills West of the Shetland Islands.
, 15th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE), Publisher: Millpress, Pages: 879-884 -
Journal articleJackson MD, Vinogradov J, Saunders JH, et al., 2011,
Laboratory Measurements and Numerical Modeling of Streaming Potential for Downhole Monitoring in Intelligent Wells
, SPE JOURNAL, Vol: 16, Pages: 625-636, ISSN: 1086-055X- Author Web Link
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- Citations: 7
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Journal articleJackson CAL, Larsen E, Hanslien S, et al., 2011,
Controls on synrift turbidite deposition on the hanging wall of the South Viking Graben, North Sea rift system, offshore Norway
, AAPG Bulletin, Vol: 95, Pages: 1557-1587Three-dimensional seismic, wireline-log, core, and biostratigraphic data from the South Viking Graben, North Sea rift system, are integrated to investigate the controls on the temporal and spatial development of an Upper Jurassic synrift turbidite system deposited on the hanging-wall dipslope of a salt-influenced half graben. Turbidite deposition was coeval with the initiation and upslope (paleo-landward) migration of activity across a gravity-driven normal fault array. Three main synrift stratal units are identified, and these are mapped using seismic and well data. The lowermost unit (upper Oxfordian) comprises thick amalgamated turbidites, which are restricted to the hanging wall of the earliest, most basinward, growth fault. The middle unit (Kimmeridgian) is more areally extensive than the underlying system, draping the now inactive basinward growth fault and extending upslope into the hanging wall of a newly activated landward growth fault. The uppermost unit (lower to middle Volgian) is more sheetlike and was deposited when activity across all growth faults had mostly ceased and slope topography had been almost fully healed. This study demonstrates that hanging-wall dipslopes within rifts can be characterized by volumetrically significant, sand-rich, gravity flow-dominated depositional systems, and that the reservoir architecture of such deposits can be strongly controlled by syndepositional growth faulting. In addition, this study provides insights into the response of turbidites to tectonically driven changes in bathymetry, which may be applicable in a range of basin settings.
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Journal articleSchuetz R, Potts DM, Zdravkovic L, 2011,
Advanced constitutive modelling of shotcrete: Model formulation and calibration
, COMPUTERS AND GEOTECHNICS, Vol: 38, Pages: 834-845, ISSN: 0266-352X- Author Web Link
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- Citations: 16
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Journal articleBodas Freitas TM, Potts DM, Zdravkovic L, 2011,
A time dependent constitutive model for soils with isotach viscosity
, COMPUTERS AND GEOTECHNICS, Vol: 38, Pages: 809-820, ISSN: 0266-352X- Author Web Link
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- Citations: 41
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Conference paperZdravkovic L, Potts DM, Kontoe S, 2011,
Effect of wall stiffness on ground deformations around deep excavations in stiff clay
, XV European Conference on Soil Mechanics and Geotechnical Engineering, Pages: 1599-1604 -
Conference paperKontoe S, Zdravkovic L, Menkiti CO, et al., 2011,
Seismic response of complex soil-structure systems
, XV European Conference on Soil Mechanics and Geotechnical Engineering, Pages: 1491-1496 -
Journal articleBell RE, McNeill LC, Henstock TJ, et al., 2011,
Comparing extension on multiple time and depth scales in the Corinth Rift, Central Greece
, GEOPHYSICAL JOURNAL INTERNATIONAL, Vol: 186, Pages: 463-470, ISSN: 0956-540X- Author Web Link
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- Citations: 34
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Journal articleJackson CAL, Somme TO, 2011,
Borehole evidence for wing-like clastic intrusion complexes on the western Norwegian margin
, Geological Society of London, Vol: 168, Pages: 1075-1078Data from a borehole on the Norwegian margin indicate that a strata-concordant amplitude anomaly within the Upper Cretaceous succession represents a 15 m thick sandbody that was either intruded in the subsurface or extruded on the palaeo-seabed. This observation implies that spatially related, strata-discordant anomalies are the seismic expression of sandstone dykes, thereby supporting previous geometry-based interpretations of the origin of these amplitude anomalies. Furthermore, this study indicates that thickness of an intrusion may be overestimated if based solely on seismic reflection mapping, and that this may lead to erroneous calculation of the ratio between depositional and intruded sandstone.
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Journal articleGhail RC, Wilson C, Galand M, et al., 2011,
EnVision: taking the pulse of our twin planet
, Experimental Astronomy: an international journal on astronomical instrumentation and data analysisEnVision is an ambitious but low-risk response to ESA’s call for a medium-size mission opportunity for a launch in 2022. Venus is the planet most similar to Earth in mass, bulk properties and orbital distance, but has evolved to become extremely hostile to life. EnVision’s 5-year mission objectives are to determine the nature of and rate of change caused by geological and atmospheric processes, to distinguish between competing theories about its evolution and to help predict the habitability of extrasolar planets. Three instrument suites will address specific surface, atmosphere and ionosphere science goals. The Surface Science Suite consists of a 2.2 m2 radar antenna with Interferometer, Radiometer and Altimeter operating modes, supported by a complementary IR surface emissivity mapper and an advanced accelerometer for orbit control and gravity mapping. This suite will determine topographic changes caused by volcanic, tectonic and atmospheric processes at rates as low as 1 mm a − 1. The Atmosphere Science Suite consists of a Doppler LIDAR for cloud top altitude, wind speed and mesospheric structure mapping, complemented by IR and UV spectrometers and a spectrophotopolarimeter, all designed to map the dynamic features and compositions of the clouds and middle atmosphere to identify the effects of volcanic and solar processes. The Ionosphere Science Suite uses a double Langmiur probe and vector magnetometer to understand the behaviour and long-term evolution of the ionosphere and induced magnetosphere. The suite also includes an interplanetary particle analyser to determine the delivery rate of water and other components to the atmosphere.
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Conference paperBland PA, Muxworthy AR, Collins GS, et al., 2011,
Heterogeneous shock in porous chondrites: Implications for Allende magnetization
, 74th Annual Meeting of the Meteoritical-Society, Publisher: Wiley-Blackwell, Pages: A22-A22, ISSN: 1086-9379 -
Conference paperCollins GS, Davison TM, Ciesla FJ, 2011,
The effects of planetesimal collisions
, 74th Annual Meeting of the Meteoritical-Society, Publisher: Wiley-Blackwell, Pages: A46-A46, ISSN: 1086-9379 -
Conference paperDavison TM, Ciesla FJ, Collins GS, 2011,
Quantification of the post-impact thermal evolution of planetesimals
, 74th Annual Meeting of the Meteoritical-Society, Publisher: Wiley-Blackwell, Pages: A53-A53, ISSN: 1086-9379 -
Journal articleKieft RL, Hampson GJ, Jackson CA-L, et al., 2011,
Stratigraphic Architecture of a Net-Transgressive Marginal- to Shallow-Marine Succession: Upper Almond Formation, Rock Springs Uplift, Wyoming, U.S.A.
, Journal of Sedimentary Research, Vol: 81, Pages: 513-533, ISSN: 1527-1404 -
Journal articleMoon S, Page Chamberlain C, Blisniuk K, et al., 2011,
Climatic control of denudation in the deglaciated landscape of the Washington Cascades
, Nature Geoscience, Vol: 4, Pages: 469-473, ISSN: 1752-0894Since the Last Glacial Maximum, the extent of glaciers in many mountainous regions has declined, and erosion driven by glacial processes has been supplanted by fluvial incision and mass wasting processes. This shift in the drivers of erosion is thought to have altered the rate and pattern of denudation of these landscapes. The Washington Cascades Mountains in the northwestern USA still bear the topographic imprint of Pleistocene glaciations, and are affected by large variations in precipitation, making them an ideal setting to assess the relative controls of denudation. Here we show that denudation rates over the past millennia, as determined by 10 Be exposure ages, range from 0.08 to 0.57 yr-1, about four times higher than the rates inferred for million-year timescales. We find that the millennial timescale denudation rates increase linearly with modern precipitation rates. Based on our landscape analyses, we suggest that this relationship arises because intense precipitation triggers landslides, particularly on slopes that have been steepened by glacial erosion before or during the Last Glacial Maximum. We conclude that the high modern interglacial denudation rates we observe in the Washington Cascades are driven by a disequilibrium between the inherited topography and the current spatial distribution of erosional processes that makes this range particularly sensitive to spatial variations in climate. © 2011 Macmillan Publishers Limited. All rights reserved.
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Journal articleGomes JLMA, Pain CC, Eaton MD, et al., 2011,
Coupled neutronics-fluids modelling of criticality within a MOX powder system
, PROGRESS IN NUCLEAR ENERGY, Vol: 53, Pages: 523-552, ISSN: 0149-1970Investigation of nuclear criticality in powder systems is necessary for the assessment of industrial plant integrity and potential radiation impacts on worker and the public health. For nuclear fuel processing, to produce fuel pellets, MOX (UO2 + PuO2) and zinc stearate (lubricant) powders are homogenised in a stirred vessel. The coupled multi-fluids (multiphase and multi-component) and neutron-radiation transport FETCH model was extended to simulate reactivity feedback mechanisms and to assess safety and potential risks of criticality incursions in 2-3D systems. This work has strengthened links with the Japan Atomic Energy Agency (JAEA), led to consultancy work with Japanese National Labs and work with Tokyo University that led on to the Todai Forum and the core to core program with Japan.
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Journal articleMerchel S, Bremser W, Alfimov V, et al., 2011,
Ultra-trace analysis of <sup>36</sup>Cl by accelerator mass spectrometry: An interlaboratory study
, Analytical and Bioanalytical Chemistry, Vol: 400, Pages: 3125-3132, ISSN: 1618-2642A first international 36Cl interlaboratory comparison has been initiated. Evaluation of the final results of the eight participating accelerator mass spectrometry (AMS) laboratories on three synthetic AgCl samples with 36Cl/Cl ratios at the 10-11, 10-12, and 10-13 level shows no difference in the sense of simple statistical significance. However, more detailed statistical analyses demonstrate certain interlaboratory bias and underestimation of uncertainties by some laboratories. Following subsequent remeasurement and reanalysis of the data from some AMS facilities, the round-robin data indicate that 36Cl/Cl data from two individual AMS laboratories can differ by up to 17%. Thus, the demand for further work on harmonising the 36Cl-system on a worldwide scale and enlarging the improvement of measurements is obvious. © 2011 Springer-Verlag.
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Journal articleWozniakiewicz PJ, Ishii HA, Kearsley AT, et al., 2011,
Investigation of iron sulfide impact crater residues: A combined analysis by scanning and transmission electron microscopy
, METEORITICS & PLANETARY SCIENCE, Vol: 46, Pages: 1007-1024, ISSN: 1086-9379- Author Web Link
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- Citations: 23
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Journal articlevan Reeuwijk M, 2011,
A mimetic mass, momentum and energy conserving discretization for the shallow water equations
, COMPUTERS & FLUIDS, Vol: 46, Pages: 411-416, ISSN: 0045-7930- Author Web Link
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- Citations: 5
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