Blar i Department of Earth Science på tittel
Viser treff 212-231 av 1103
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Diagnostics of seismic time-lapse effects of sandstones based on laboratory data
(Peer reviewed; Journal article, 2014-09)We evaluated a viscoelastic modeling of P- and S-wave velocity dispersion, attenuation, pressure, and fluid effects for a set of siliciclastic rock samples. Our analysis used a published laboratory data set of 63 sandstones ... -
Did the Eurasian ice sheets melt completely in early Marine Isotope Stage 3? New evidence from Norway and a synthesis for Eurasia
(Journal article; Peer reviewed, 2023)We describe glaci-lacustrine sediments buried under thick tills in Folldalen, south-east Norway, a site located close to the former centre of the Scandinavian Ice Sheet. Thus, the location implies that the ice sheet had ... -
Dinoflagellate cyst stratigraphy and palaeoenvironment of the "Utsira Sand" in the northern North Sea
(Master thesis, 2014-11-20)Safe CO_2 storage in the Utsira Formation is one of many solutions to climate change mitigation. A major leakage had occurred in the Utsira Formation in 2008, due to water injection in what was believed to be the Utsira ... -
Direct image-to-geometry registration using mobile sensor data
(Peer reviewed; Journal article, 2016)Adding supplementary texture and 2D image-based annotations to 3D surface models is a useful next step for domain specialists to make use of photorealistic products of laser scanning and photogrammetry. This requires a ... -
The discovery of the Younger Dryas, and comments on the current meaning and usage of the term
(Journal article; Peer reviewed, 2021)The Younger Dryas (YD) cold event was discovered in Denmark by Hartz and Mithers in 1904 and the term coined by Hartz in 1912. It was identified as a lacustrine clay bed containing plant macrofossils of an Arctic flora, ... -
Disentangling rock record bias and common-cause from redundancy in the British fossil record
(Peer reviewed; Journal article, 2014-09-04)The fossil record documents the history of life, but the reliability of that record has often been questioned. Spatiotemporal variability in sedimentary rock volume, sampling and research effort especially frustrates ... -
Disentangling source of moisture driving glacier dynamics and identification of 8.2 ka event: evidence from pore water isotopes, Western Himalaya
(Journal article; Peer reviewed, 2020)Two atmospheric circulation patterns, the Indian Summer Monsoon (ISM) and mid-latitude Westerlies control precipitation and thus glacier variability in the Himalaya. However, the role of the ISM and westerlies in controlling ... -
Displacement/Length Scaling Relationships for Normal Faults; a Review, Critique, and Revised Compilation
(Journal article; Peer reviewed, 2022)The relationship between normal fault displacement (D) and length (L) varies due to numerous factors, including fault size, maturity, basin tectonic history, and host rock lithology. Understanding how fault D and L relate ... -
Dissolved gases in hydrothermal plumes from Artic vent fields
(Master thesis, 2013-10-30)Recent discoveries of active vent fields on slow and ultraslow spreading ridges have revealed that hydrothermal activity is more common than previously assumed. In the Norwegian-Greenland Sea, two such vent fields are ... -
Distribution of deformation associated with relay and tip damage zones of normal faults - a case study from Kilve, UK
(Master thesis, 2017-06-13)The aim of this study is to investigate and characterize distribution of deformation and damage associated with relays and tips of normal faults at a range of scales. This is done through field based studies and digital ... -
Distribution of discontinuous Mudstone beds within wavedominated shallow-marine deposits: Star point sandstone and blackhawk formation, Eastern Utah
(Journal article; Peer reviewed, 2014)Deposits of wave-dominated shorelines are typically considered to act as relatively simple hydrocarbon reservoirs and are commonly modeled as “tanks of sand.” However, important heterogeneities that can act as barriers to ... -
The distribution of rivers to terrestrial sinks: Implications for sediment routing systems
(Peer reviewed; Journal article, 2018-09)Empirical observations used to constrain controls on large global modern river systems typically use catchment delineations depicting drainage patterns of rivers to oceans. A key component in the spatial and temporal ... -
Distribution of thermochemical output and associated ecosystems at the Loki’s Castle hydrothermal field
(Master thesis, 2020-12-04)Loki’s Castle is a hydrothermal vent field situated on the ultra-slow Arctic mid-Ocean ridges, at the boundary of the Mohns- and Knipovich segments (73◦30’N, 08◦E), and consists of two sulfide mounds and associated black ... -
Do deformation bands matter forflow? Insights from permeability measurements and flow simulations in porous carbonate rocks
(Peer reviewed; Journal article, 2017-02)We investigate the permeability and flow effects of deformation bands in porous granular carbonate rocks in Malta and use results from flow simulations to discuss the practical implications of deformation bands in carbonate ... -
Double-Difference Relocation and Empirical Green’s Function Analysis of Storfjorden Earthquakes
(Master thesis, 2017-06-08)On 21 February 2008, an earthquake of magnitude Mw 6.1 occurred in Storfjorden on Svalbard. Since then, more than 2000 earthquakes have been recorded in this region. More recently, on 29 March 2016, an earthquake of magnitude ... -
Down-dip correlation and modelling of shallow-marine and estuarine deposits in the Sunnyside Member, Book Cliffs, Eastern Utah: implications for the formation of non-depositional discontinuity surfaces
(Master thesis, 2005-11)The Sunnyside Member is part of the Blackhawk Formation and consists of shallow-marine and estuarine deposits reflecting high-frequency changes in sea level. Detailed mapping of the unit reveals an intra parasequence ... -
Drainage integration and sediment dispersal in active continental rifts: A numerical modelling study of the central Italian Apennines
(Journal article; Peer reviewed, 2018)Progressive integration of drainage networks during active crustal extension is observed in continental areas around the globe. This phenomenon is often explained in terms of headward erosion, controlled by the distance ... -
Drilling for the Archean Roots of Life and Tectonic Earth in the Barberton Mountains
(Peer reviewed; Journal article, 2009) -
Driving Mechanisms of an Extreme Winter Sea Ice Breakup Event in the Beaufort Sea
(Journal article; Peer reviewed, 2022)The thick multiyear sea ice that once covered large parts of the Arctic is increasingly being replaced by thinner and weaker first-year ice, making it more vulnerable to breakup by winds. We use the neXtSIM sea ice model ... -
Drumlin relief
(Peer reviewed; Journal article, 2012)Drumlin relief is a key parameter for testing predictions of models of drumlin formation. Although this metric is commonly described in textbooks as being of the order of a fewtens ofmetres, our critical review of the ...