Browsing Department of Earth Science by Title
Now showing items 782-801 of 853
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Teaching with digital geology in the high Arctic: opportunities and challenges
(Journal article; Peer reviewed, 2021)The Covid-19 pandemic occurred at a time of major revolution in the geosciences – the era of digital geology. Digital outcrop models (DOMs) acquired from consumer drones, processed using user-friendly photogrammetric ... -
Tectonic controls on basin physiography and sediment dispersal: the Vana Sub-basin, northern North Sea
(Master thesis, 2018-06-22)A number of studies have investigated the controls on syn-rift sedimentation patterns and shift in syn-rift depocentres in rift-basins. However, few studies are focusing on how the change in tectonic regime that comes with ... -
Tectonic geomorphology of the Liri valley, central Apennines of Italy
(Master thesis, 2014-05-02)This is a detailed study of hillside catchments in the Liri valley, central Apennines of Italy. Various geomorphic parameters extracted from a 20-m digital elevation model (DEM) are used to study the morphology of small ... -
Tectono-sedimentary evolution of the Plio-Pleistocene Corinth rift, Greece
(Peer reviewed; Journal article, 2018-06)The onshore central Corinth rift contains a syn‐rift succession >3 km thick deposited in 5–15 km‐wide tilt blocks, all now inactive, uplifted and deeply incised. This part of the rift records upward deepening from fluviatile ... -
Tectono-stratigraphic evolution of the El Qaa fault block, Sinai, Egypt - an ArcGIS and MOVE study
(Master thesis, 2015-06-01)The Gulf of Suez is a classic example of a failed rift system and due to the extensive erosion it has become perfect for studying structural style and stratigraphy in a 3D environment, where the sedimentary architecture ... -
Tectono-thermal evolution and morphodynamics of the central dronning maud land mountains, east antarctica, based on new thermochronological data
(Peer reviewed; Journal article, 2018-10-26)The lack of preserved Mesozoic–Cenozoic sediments and structures in central Dronning Maud Land has so far limited our understanding of the post-Pan-African evolution of this important part of East Antarctica. In order to ... -
Tectonostratigraphic evolution of a multi-episodic rift. The northern Norway - Greenland rift: from post-orogenic exhumation to deep marine turbidites
(Doctoral thesis, 2015)The aim of this project is to improve the tectonostratigraphic understanding of the northern part of the Norwegian passive continental margin, the so-called Lofoten margin, and contribute to the wider understanding of ... -
Temperature controls carbon cycling and biological evolution in the ocean twilight zone
(Journal article; Peer reviewed, 2021)Theory suggests that the ocean’s biological carbon pump, the process by which organic matter is produced at the surface and transferred to the deep ocean, is sensitive to temperature because temperature controls photosynthesis ... -
Temperature exposure in cod driven by changes in abundance
(Journal article; Peer reviewed, 2022)Animals actively select the most suitable habitat in terms of fitness, much of which is mediated by temperature. We reconstructed population abundance, oxygen isotope and temperature chronologies for the Icelandic and the ... -
Temperature variability within the upper water masses of the western tropical Atlantic during rapid climate transitions
(Master thesis, 2010-01-20)Rapid reorganization of the ocean circulation in the Atlantic Ocean has been linked to widespread varations in climate on both millennial and glacial-interglacial timescales. The response of the tropical Atlantic upper ... -
Tephra horizons identified in the western North Atlantic and Nordic Seas during the Last Glacial Period: Extending the marine tephra framework
(Journal article; Peer reviewed, 2020)Geochemically distinct volcanic ash (tephra) deposits are increasingly acknowledged as a key geochronological tool to synchronize independent paleoclimate archives. Recent advances in the detection of invisible (crypto) ... -
Tephrochronology of the North Atlantic during the Last Glacial period – a paleoclimate synchronization tool
(Doctoral thesis, 2021-04-09)During present time, the global climate is changing at a rapid pace. To understand the future consequences of these changes, studies of past abrupt climate change are essential. A natural analogue to the current climate ... -
Testing the Environmental Seismic Intensity Scale on Data Derived from the Earthquakes of 1626, 1759, 1819, and 1904 in Fennoscandia, Northern Europe
(Journal article; Peer reviewed, 2021)Earthquake environmental effects (EEEs) were compiled for the earthquakes of 1626, 1759, 1819, and 1904 in the Fennoscandian Peninsula, northern Europe. The principal source of information was the contemporary newspaper ... -
Textural and geochemical characteristics of hematitic chert deposits in SW Norway: Implications for formation settings and processes
(Master thesis, 2017-11-30)Jasper, a specific type of hematitic chert, is often interpreted as an ancient analogue to modern seafloor hydrothermal deposits. Modern low-temperature seafloor hydrothermal Fe-deposits are mainly produced by Fe(II)- ... -
The formation of the ophiolitic terrane of SW Norway - relationships between immature island arc volcanic sequences and trondhjemitic complexes on Bømlo
(Master thesis, 2021-10-01)Single zircon U/Pb dating, geochemistry, and field descriptions from trondhjemitic and tonalitic intrusions, intruding the Lykling Ophiolite Complex, provide new insights into the origin and evolution of the Early Ordovician ... -
A theoretical approach to glacier equilibrium-line altitudes using meteorological data and glacier massbalance
(Peer reviewed; Journal article, 2003-05-01)Based on a close exponential relationship between mean ablation-season temperature and winter precipitation at the equilibrium-line altitude (ELA) of 10 Norwegian glaciers, three equations are derived. The first equation ... -
Theoretical equilibrium-line altitudes and glacier buildup sensitivity in southern Norway based on meteorological data in a geographical information system
(Peer reviewed; Journal article, 2003-05-01)Three equations derived from a close exponential glacier-climate relationship at the equilibrium-line altitude (ELA) of Norwegian glaciers have been utilized and implemented in a geographical information system (GIS). The ... -
Time-lapse techniques for surface velocity, front position and calving rate measurement of a fast-flowing tidewater glacier in Svalbard
(Master thesis, 2015-05-31)Calving is the mechanical loss of icebergs from tidewater glaciers, responsible for 70% of the annual transfer of mass from the cryosphere to the ocean (van der Veen 1998a, 2002). To be able to correctly predict future ... -
The timing of deglaciation and the sequence of pioneer vegetation at Ringsaker, eastern Norway – and an earthquake-triggered landslide
(Peer reviewed; Journal article, 2018)We describe a sediment sequence comprising a thick till covered by thin beds of lacustrine sediments containing pollen and plant macrofossils derived from pioneer vegetation. Four consistent radiocarbon dates on terrestrial ... -
Tipping the balance: Shifts in sediment production in an active rift setting
(Peer reviewed; Journal article, 2019-02-06)Landscapes in actively developing rifts respond to tectonic forcing over a similar time scale to that of fault array evolution (i.e., 10^5–10^6 yr). Consequently transient landscapes (i.e., not in topographic steady state) ...