A5086826665- Geophysical Methods and Applications
- Geophysical and Geoelectrical Methods
- Seismic Waves and Analysis
- earthquake and tectonic studies
- Landslides and related hazards
- Seismic Imaging and Inversion Techniques
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- Astro and Planetary Science
- Non-Destructive Testing Techniques
- Geological and Geochemical Analysis
- Earthquake Detection and Analysis
- Methane Hydrates and Related Phenomena
- Electromagnetic Simulation and Numerical Methods
- Rock Mechanics and Modeling
- Maritime and Coastal Archaeology
- Planetary Science and Exploration
- Geotechnical Engineering and Underground Structures
- Experimental and Theoretical Physics Studies
- Geophysics and Gravity Measurements
- Forensic Anthropology and Bioarchaeology Studies
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Space Exploration and Technology
- Atomic and Subatomic Physics Research
- Peatlands and Wetlands Ecology
Hemel Hempstead Hospital
2017-2022
University of Birmingham
2019-2022
Statistical Service
2008
Keele University
2001-2004
National Oceanography Centre
1996-1999
University of Southampton
1996-1999
University of Liverpool
1999
Abstract The sensing of gravity has emerged as a tool in geophysics applications such engineering and climate research 1–3 , including the monitoring temporal variations aquifers 4 geodesy 5 . However, it is impractical to use cartography resolve metre-scale underground features because long measurement times needed for removal vibrational noise 6 Here we overcome this limitation by realizing practical quantum gradient sensor. Our design suppresses effects micro-seismic laser noise, thermal...
The high precision and scalable technology offered by atom interferometry has the opportunity to profoundly affect gravity surveys, enabling detection of features either smaller size or greater depth. While such systems are already starting enter into commercial market, significant reductions required in order reach size, weight power conventional devices. In this article, potential for based gravimetry is assessed, suggesting that key resides within development gradiometry sensors enable...
Abstract The growth of normal fault arrays is examined in basins where sedimentation rates were higher than displacement and histories are recorded by thickness variations within syn-faulting sequences. Progressive strain localization the principal feature history faults for study areas from Inner Moray Firth, a sub-basin North Sea, Timor offshore Australia. kinematics faulting similar both areas. Fault correlate with size, size measured terms either or length. Small have mortality larger...
Microgravity is established as a technique for the detection of natural and man-made cavities. However, past published examples have concentrated on substantial cavities or mine workings. Two cases are described which voids present relatively small discontinuous, where much affected ground characterized by low-density rather than large open voids. Here we use term ‘low-density ground’ to encompass that has been disturbed collapse partial material into void such shows an anomalously low...
Geophysical surveying is widely used for the location of subsurface features. Current technology limited in terms its resolution (thus size features it can detect) and penetration depth a suitable technique needed to bridge gap between shallow near surface investigation using techniques such as EM conductivity mapping GPR commonly map upper 5 m below ground surface, large at greater depths detectable conventional microgravity (>~5 surface). This will minimise risks from unknown buried...
Three models are proposed for the orientation of extensional faults and dykes at mid-ocean ridges based on their relationship to ridge axis relative plate separation vector. These predict four geometries allowing them be tested by data from 17 different sites within Earth's oceans. A transtensional model is shown generally applicable structure ridges, with special conditions required a departure it. Spreading rate influences geometry intermediate fast spreading more likely have an orthogonal...
Obliquely spreading mid‐ocean ridges, such as the Reykjanes Ridge, display two distinct fault sets distinguishable by orientation and position: on‐axis faults are oriented oblique to both trend of axis normal relative plate separation vector, while on flanks strike approximately parallel ridge axis. Numerical modeling techniques used here simulate development faulting Ridge. Stresses acting in a cross section through lithosphere at slow investigated using fast Lagrangian analysis continua...
Abstract This paper describes the key characteristics of a proglacial moraine complex at Leverett Glacier, western Greenland. The presence large stream-cut exposure allowed examination its internal structure, as well surface geomorphology. It is composed variety ice and sediment facies, including debris-poor ice, ice-rich diamicton gravel. These units are glaciotectonized, with featuring major fault associated drag fold, planar, erosional unconformity, small-scale folds. Various...
ABSTRACT. The characteristic grain size distributions observed in the test walls of agglutinated foraminifera can be replicated by numerical simulations. logistics employed model parallel those seen during culturing experiments construction. Both fractal and log‐normal are generated a simple space‐filling algorithm. However, to generate specific foramimferan tests strong preference for selecting larger grains from available sediment must effected. exclusion smaller grains, selection,...
The value of the Ground Penetrating Radar (GPR) technique in investigation historic buildings is gaining increasing recognition. Initially developed for geological and ground engineering investigations, GPR surveys have proven to be very useful rapid - non-destructive location metal structures such as cramps, dowels, beams holts within structure buildings. Particular success also recorded measurement material thickness facing stones. This article seeks offer recommendations design surveys,...
Buried infrastructure forms the backbone for economic stability, growth, competitiveness and productivity in modern society is a critical element of urban environments. The pressures on buried will only increase as population increases, which drive demand require changes. This means that maintenance existing infrastructure, well building new capacity, vital to meet demands. Currently, there lack available technology locate detect accurately condition relatively shallow (up 1 m deep) plastic...
In heterogeneous sub-surface environments, the evaluation of GPR sections is complicated by influence nearfield effects, antenna radiation patterns, velocity variations and surveying inconsistencies. Section interpretation can be exceedingly difficult, even with advanced processing methods, therefore mathematical modelling has become an increasingly popular addition to traditional techniques. The Finite-Difference Time-Domain method (FDTD) most common, but practical use scheme must...