A5064166213- Archaeology and ancient environmental studies
- earthquake and tectonic studies
- Geological and Tectonic Studies in Latin America
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies
- Geotechnical and Geomechanical Engineering
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Geological and Geophysical Studies Worldwide
- Pleistocene-Era Hominins and Archaeology
- Law and Political Science
- Geological formations and processes
- Rock Mechanics and Modeling
- Archaeological Research and Protection
- Methane Hydrates and Related Phenomena
- Ancient and Medieval Archaeology Studies
- Energy and Environment Impacts
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Conducting polymers and applications
- War, Ethics, and Justification
- Peatlands and Wetlands Ecology
- Paleopathology and ancient diseases
- Political Influence and Corporate Strategies
University College Cork
2014-2022
Federal Institute for Geosciences and Natural Resources
2012-2016
University of Bradford
2012-2013
Forschungszentrum Küste
2012
University of Freiburg
2009
GFZ Helmholtz Centre for Geosciences
2007
Freie Universität Berlin
2005-2006
Heraeus (Germany)
1978
Significance The impact of rapid climate change on humans is contemporary global interest. Present-day debates are necessarily informed by paleoclimate studies in which often assumed, without sufficient critical attention, to be the primary driver societal change. Using new methods analyze paleoclimatic and archeological datasets, we overturn deterministic idea that population collapse at end northwestern European Bronze Age was caused Our work demonstrates necessity high-precision...
Abstract. High-velocity lower crust (HVLC) and seaward-dipping reflector (SDR) sequences are typical features of volcanic rifted margins. However, the nature origin HVLC is under discussion. Here we provide a comprehensive analysis deep crustal structures in southern segment South Atlantic an assessment along Two new seismic refraction lines off America fill gap data coverage together with five existing velocity models allow for detailed investigation properties on both An important finding...
Abstract Multichannel seismic and potential field data shed light on the final rifting stage in southern South Atlantic. This was associated with major episodes of magmatism during Early Cretaceous continental break-up. An asymmetrical simple shear-dominated variable strain model is proposed margin asymmetry visible shelf width, amplitude magnetic anomalies, orientation break-up-related sedimentary basins basement slope angle. Along-margin rotation spreading- later rifting-direction from...
Multichannel reflection seismic profiles, combined with gravimetric and magnetic data provide insight into the crustal structure of southernmost Argentine margin, at transition from a rifted to transform margin outline extent North Falkland Graben. Based on these data, we establish regional stratigraphic model for post-rift sediments, comprising six marker horizons new formation in Barremian/Lower Cretaceous. Our observations support that N–S trending subsidiary branch Graben continues along...
Abstract We present structural models of two exemplary conjugate seismic lines the southernmost South Atlantic margins to examine their initial evolution, especially seaward‐dipping reflectors (SDRs). Modeling illustrates different structure and inclination angles SDRs, which therefore require subsidence histories. Since typical symmetrical are not applicable, we suggest a model with westward‐dipping detachment fault that offsets SDRs on American margin speculate passively subsided African...
This paper explores the interpretation of deposition artefacts in Ireland from c. 2500 to 800 bc , combining a contextual analysis with post-processual ideas about materiality, artefacts, and their biographies. Hoards, single burial finds are shown be complementary strands depositional record result deliberate deposition. It is argued that both symbolic value these items as well economic practical rationales determine mode. The attempts infer social practices rules determined differential...
A theory, the stress‐sensitivity approach, has been developed, which relates elastic moduli of anisotropic rocks to stress tensor and pore pressure for an arbitrary symmetry applied load. The theory explains stress‐induced changes seismic velocities in terms space geometry. dependent anisotropy is described Thomsen's parameters ε, γ δ . To test we analyze laboratory (high frequency) results deformation isotropically crack damaged dry lava flow basalt from Mt. Etna volcano. states that, under...
A novel capacitive sensor for measuring the water-level and monitoring water quality has been developed in this work by using an enhanced screen printing technology. commonly used environment-friendly conductive polymer poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) sensors a limited conductivity due to its high sheet resistance. physical treatment performed during process reduced resistance of printed PEDOT:PSS on polyethylenterephthalat (PET) substrate from 264.39...
Wave run-up plays an important role in the design of coastal protection structures. However, none existing formulae for wave predictions explicitly considers effect revetment porosity. Recently, two revetments have been tested Large Flume (GWK) Forschungszentrum Kuste (FZK), a new type highly porous polyurethane bonded (PBA revetment) and smooth interlocked pattern placed concrete block (IPPB revetment), which is considered as "weakly permeable† present study. evaluated by video data...
Archaeological burial contexts may include a variety of white substances, but few analyses have been published. This study reports on the physico‐chemical characterization such residues from seven archaeological sites. It is often assumed that materials are lime. Our findings demonstrate they can be gypsum, calcite (chalk), aragonite, brushite, degraded metal, natural (gum) resins or synthetic polymer–based products. These present as result diagenetic processes, funerary practices modern...
Abstract. High-velocity lower crust (HVLC) and seaward dipping reflector sequences (SDRs) are typical features of volcanic rifted margins. However, the nature origin HVLC is under discussion. Here we provide a comprehensive analysis deep crustal structures in southern segment South Atlantic an assessment along Two new seismic refraction lines off America fill gap data coverage together with five existing velocity models allow detailed investigation properties on both An important finding...
A multiproxy (pollen, microcharcoal, loss-on-ignition, magnetic susceptibility and geochemistry) sequence from Lough Cullin, southeast Ireland, supported by a high-resolution radiocarbon chronology, modelled using Bayesian approaches, provides record of environmental change for much the Holocene. Following establishment mixed deciduous woodland, climatic deterioration was likely responsible pronounced vegetation erosion, 7615–6500 cal. BC to 6245–5575 BC, evidence ‘8.2 Kyr’ BP climate event....
This paper attempts to resituate the Irish so-called ‘Royal’ sites within our vision of Iron Age by challenging current understanding their function as primarily situated in a ceremonial or ritual realm. While evidence from these speaks complexity function, conceptualisation, and symbolic relevance, it is argued here that they are integral focal points settled landscapes. Their architecture suggested address very specific concerns agrarian communities built them and, its distinct change over...
Palaeoclimatic proxies from records in northwest Europe evidence a climatic deterioration, known as the ‘2.8 ka Event’, which broadly coincided with transition Later Bronze Age to Iron Ireland. This Age-Iron Ireland has been invoked various hypotheses concerning relationship between environmental and cultural change. paper offers brief review of contrasting archaeological interpretations transition, outlines gaps uncertainties current knowledge highlights role climate change some these...
Elastic properties of rocks are functions tectonic stresses. Using the theory poroelasticity we analyze mechanisms these dependencies related to changes rock‐pore‐space geometry. We develop a formalism describing elastic moduli and anisotropy as non‐linear confining stresses pore pressure. It is stress dependent geometry space that fully controls stress‐induced seismic velocities. Changes compliant porosity with differential explain often observed exponential behaviour moduli. introduce...