Browsing Department of Earth Science by Title
Now showing items 1136-1155 of 1215
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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) ... -
Tolkning av refleksjonsseismiske data fra Van Mijenfjorden, Svalbard
(Master thesis, 2017-12-07)Grunnlaget for tolkningen i denne oppgaven er 53 av 68 tilgjengelige multi-kanals seismiske linjer som er samlet inn under Svalex i årene 2007-2014. De seismiske linjene sørget for god dekning av Van Mijenfjorden. Datasettet ... -
Topografi og dreneringsretninger under Nordfonna, Folgefonna
(Master thesis, 2012-01-09)Nordfonna er den nordligste av de tre breene på Folgefonnhalvøyen i Hardanger. Nordfonna er en godt vitenskapelig kartlagt isbre. Breens plassering gjør den sensitiv for klimatiske endringer og kan hjelpe forskere å forstå ... -
Topological Characterization of a Fault Network Along the Northern North Sea Rift Margin
(Journal article; Peer reviewed, 2023)The factors that control the spatial variation of the topological characteristics of normal fault networks at the rift-scale are poorly understood. Here, we use 3D seismic reflection data from the northern North Sea to ... -
Topological Constraints by the Greenland–Scotland Ridge on AMOC and Climate
(Journal article; Peer reviewed, 2020)Changes in the geometry of ocean basins have been influential in driving climate change throughout Earth’s history. Here, we focus on the emergence of the Greenland–Scotland Ridge (GSR) and its influence on the ocean state, ... -
Topology and distribution of deformation bands in normal fault damage zones, Utah
(Master thesis, 2020-06-24)Deformation bands are common strain localization features in porous rocks and sediments that occur as millimeter to centimeter wide tabular zones. They may occur as single bands, network of bands or in clusters and are ... -
Topology of normal fault damage zones in carbonate rocks, Malta - implications for the development of connectivity in evolving fault networks
(Master thesis, 2016-11-21)Fault damage zones are known to be more complex in linkage zones, relays and at fault tips. From a reservoir perspective, these damage complexities may act as conduits or barriers for fluid flow, hence they need to be ... -
Toward Waveform-Based Characterization of Slab & Mantle Wedge (SAM) Earthquakes
(Journal article; Peer reviewed, 2021)Earthquakes in subduction zones occur in the slab mantle, in the subducting crust, on the subduction plate interface, and, in some cases, in the mantle wedge–regions that are separated by strong seismic discontinuities. ... -
Towards a process-based understanding of Holocene polar climate change. Using glacier-fed lake sediments from Arctic Svalbard and Antarctic South Georgia
(Doctoral thesis, 2016-05-03)Earth`s polar regions are undergoing dramatic changes due to ongoing climate change as demonstrated by increasing temperatures, collapsing ice shelves, Arctic sea ice loss and rapid glacier retreat. Driving an accelerating ... -
Towards the new Thematic Core Service Tsunami within the EPOS Research Infrastructure
(Journal article; Peer reviewed, 2022)Tsunamis constitute a significant hazard for European coastal populations, and the impact of tsunami events worldwide can extend well beyond the coastal regions directly affected. Understanding the complex mechanisms of ... -
Trace Element and Sulfur Isotope Signatures of Volcanogenic Massive Sulfide (VMS) Mineralization: A Case Study from the Sunnhordland Area in SW Norway
(Journal article; Peer reviewed, 2024-04-07)The Sunnhordland area in SW Norway hosts more than 100 known mineral occurrences, mostly of volcanogenic massive sulfide (VMS) and orogeny Au types. The VMS mineralization is hosted by plutonic, volcanic and sedimentary ... -
Trace Elements in the Large Population-Based HUNT3 Survey
(Journal article; Peer reviewed, 2021)The Nord-Trøndelag Health Study (The HUNT Study) is a large health survey population study in the county of Trøndelag, Norway. The survey has been repeated four times in about 10-year intervals. In the HUNT3 survey ... -
Tracing the last remnants of the Scandinavian Ice Sheet: Ice-dammed lakes and a catastrophic outburst flood in northern Sweden
(Peer reviewed; Journal article, 2019-08-08)We present geomorphological evidence of large, previously undocumented, early Holocene ice-dammed lakes in the Scandinavian Mountains of northwestern Sweden. The lakes extents indicate that the last remnants of the ... -
Tracing the Sveconorwegian orogen into the Caledonides of West Norway: Geochronological and isotopic studies on magmatism and migmatization
(Journal article; Peer reviewed, 2021)The Sveconorwegian orogen represents a branch of Grenville-age (~1250–950 Ma) orogenic belts that formed during the construction of the supercontinent Rodinia. This study traces the Sveconorwegian records from its type-area ... -
Transfer entropy computation using the Perron-Frobenius operator
(Peer reviewed; Journal article, 2019)We propose a method for computing the transfer entropy between time series using Ulam's approximation of the Perron-Frobenius (transfer) operator associated with the map generating the dynamics. Our method differs from ... -
Transgressive development of coal-bearing coastal plain to shallow marine setting in a flexural compressional basin, Paleocene, Svalbard, Arctic Norway
(Doctoral thesis, 2008-09-08)The most extensive Paleogene succession on Svalbard, in the Arctic north of Norway, is found in the Central Tertiary Basin of Spitsbergen. It consists of a clastic basin fill of mudstone, sandstone, coal and rare conglomerate ... -
Transient Deep Ocean Cooling in the Eastern Equatorial Pacific Ocean at the Eocene-Oligocene Transition
(Journal article; Peer reviewed, 2023)At the Eocene-Oligocene Transition (EOT), approximately 34 million years ago, Earth abruptly transitioned to a climate state sufficiently cool for Antarctica to sustain large ice sheets for the first time in tens to hundreds ...