A5030830880- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Intelligence, Security, War Strategy
- Geological formations and processes
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Housing Market and Economics
- Geophysical and Geoelectrical Methods
- Fiscal Policy and Economic Growth
- Geological Formations and Processes Exploration
- History of Science and Natural History
- Medical History and Innovations
- Geological Modeling and Analysis
- Geophysics and Sensor Technology
- Methane Hydrates and Related Phenomena
- Seismology and Earthquake Studies
- Local Government Finance and Decentralization
- Evolution and Science Education
- Maritime and Coastal Archaeology
University of Leicester
2010-2023
Google (United States)
2017
University of New Hampshire
1998-2013
University of Cambridge
1994-2013
Lincoln Institute of Land Policy
2005-2010
University of New Hampshire at Manchester
1990-2010
Salisbury University
2002-2009
Texas Instruments (United States)
1998
Aerospace Technology Institute
1995
Institute of Geological Sciences
1994
Abstract We present analysis of new gravity data to produce a 2D crustal and upper mantle density model across the northern Main Ethiopian Rift (NMER). The magmatic NMER is believed represent transitional stage between continental oceanic rifting. conclude that beneath our profile, magma emplacement into crust occurs in form 20 km-wide body axis rift, 12 off-axis NW margin rift. These are coincident with Quaternary volcanic chains, anomalies seismic velocity conductivity identified by...
In the Neoproterozoic, NW Scotland was located in a tract of extending continental lithosphere that evolved into eastern passive margin Laurentia when Iapetus opened Vendian. On Caledonian foreland, major rift events are inferred Riphean and Vendian, corresponding to intra-Torridonian sub-Cambrian unconformities respectively. this context, current views Moine Dalradian rocks Scottish Highlands were subjected repeated orogeny during same period become difficult sustain. We propose...
Deep seismic profiles in the Irish and North seas have successfully imaged crustal structure across Iapetus suture zone. A problem with current interpretations is that reflectors chosen as project to top of basement well south Solway Line, palaeontologically defined trace suture. We present a revised interpretation which reflectivity boundary common all identified leading edge imbricated Avalonian crust, effect footwall This projects surface close obviating need invoke northward backthrusting
Continental rifting is constrained by the architecture and heterogeneous composition of lithosphere within which occurs. Recent studies in Ethiopia show that Cenozoic northern Main Ethiopian Rift (NMER) has developed a Neoproterozoic lithospheric framework modified Tertiary plume, magma injection having replaced mechanical failure as main strain accommodation mechanism. A 400 km long profile 91 broadband seismic stations striking southeast across NMER from uplifted plateau to beyond southern...
Abstract The post-Caledonian development of the West Orkney Basin is regularly cited as a classic example basement-influenced rifting. This paper presents first detailed multidisciplinary analysis three-dimensional (3D) geometries and distribution faults in onshore northernmost Scotland, examining their relationships to basement fabrics comparing them rift-related structures developed offshore Basin. Two phases faulting are distinguished: 1) Devonian ENE–WSW extension localized east basin...
This study images upper-mantle structure beneath different tectonic and geomorphological provinces in southern Scandinavia by P-wave traveltime tomography based on teleseismic events. We present results using integrated data from several individual projects (CALAS, MAGNUS, SCANLIPS, CENMOVE Tor) with a total of 202 temporary seismological stations deployed Norway, Sweden, Denmark the northernmost part Germany. These stations, together 18 permanent yield high density coverage enable...
Sill emplacement is typically associated with horizontally mechanically layered host rocks in a near-hydrostatic far-field stress state, where contrasting mechanical properties across the layers promote transitions from dykes, or inclined sheets, to sills. We used detailed field observations Loch Scridain Complex (Isle of Mull, UK), and models show that layering not always dominant control on sill emplacement. The studied sills have consistently shallow dips (1°–25°) cut vertically bedded...
Research Article| March 01, 2003 Crustal trace of a hot convective sheet Suleiman Al-Kindi; Al-Kindi 1Bullard Laboratories, Madingley Rise, Road, Cambridge CB3 0EZ, UK Search for other works by this author on: GSW Google Scholar Nicky White; White Martin Sinha; Sinha 2Southampton Oceanography Centre, University Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, Richard England; England 3Department Geology, Leicester, Leicester LE1 7RH, Tiley 4Bullard Geology (2003) 31 (3):...
Two wide‐angle seismic lines located in the northern Rockall Trough were acquired May 2000. One line (line E) crosses trough from continental shelf off Lewis to normal oceanic crust west of Lousy Bank NW‐SE direction. The other D) intersects with E, Wyville‐Thomson Ridge a SW‐NE direction and ends Faeroe‐Shetland Basin. Sonobuoy data expanding spread profiles same area have been remodeled. Analysis using travel times amplitudes reveals an up 5 km thick sedimentary basin including 1.5...
Receiver functions have been calculated from teleseismic events recorded by an array of seismometers deployed on E-W transect between the coasts central Norway and Sweden. Forward inverse modelling migration receiver yields models for subsurface velocity structure along profile which crust thickening c. 32 km at Norwegian coast to 43 beneath Scandinavian mountain range then remaining constant There is some evidence a low-velocity layer in upper 10 parts western Sweden good high-velocity...
We use normal-incidence and wide-angle seismic data recorded on the Faroe Islands to study crustal structure along two profiles extending east from islands, across shelf into Faroe-Shetland Basin. show that massive basaltic lava flows extend eastward away Islands, having flowed an older Mesozoic early Paleocene sedimentary basin, feathering out near centre of Sediments beneath basalts reach a thickness several kilometres in but do not with resolvable Islands. The decreases toward Basin,...