Browsing Institutt for geofag by Title
Now showing items 1554-1573 of 3035
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(Master thesis / Masteroppgave, 2010)Tre klynger med lamprofyriske gangar er prøvetatt og ein har anteke at desse har same alder. Etter analyse har gangane blitt klassifisert som kalk-alkaline lamprofyrar, alkaline lamprofyrar og ultramafiske lamprofyrar. Dei ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Abstract. Short-lived anthropogenic climate forcers (SLCFs), such as sulfate aerosols, affect both climate and air quality. Despite being short-lived, these forcers do not affect temperatures only locally; regions far away ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The emplacement of Large Igneous Provinces (LIPs) is commonly correlated with global climate change, and environmental and biological crises. To establish this complex causative link, chemical proxies from marine sedimentary ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The increasing mass loss from the Greenland ice sheet is becoming growingly important to present-day global sea level rise. Meltwater export to the ocean may be amplified by near-surface ice layers in firn (i.e., snow that ...
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(Master thesis / Masteroppgave, 2015)The glacier calving process is poorly documented but closely related to glacier dynamics. Glaciers respond to many factors, such as air temperature or precipitation and can affect calving activity. Accessing calving rate ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)Dehydration of partly or completely serpentinized ultramafic rocks can increase the pore fluid pressure and induce brittle failure, a process referred to as dehydration embrittlement. However the extents of strain localization ...
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(Master thesis / Hovedoppgave, 2007)Sammendrag Flom påfører i dag samfunnet store økonomiske tap. For å kunne forebygge og begrense disse skadene mest mulig er et godt analyseverktøy nødvendig. Slik at man f.eks. unngår å bygge eller tilpasser bygg på ...
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(Master thesis / Masteroppgave, 2020)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Since the end of the Little Ice Age (LIA), formerly glaciated areas have undergone considerable changes in their morphodynamics due to external forces and system-internal dynamics. Using multi-temporal high-resolution ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)Global sea level has changed cyclically throughout Earth's history due to a variety of mechanisms that operate on a variety of timescales. Here we attempt to place constraints on the “actual” number of sea-level cycles ...
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(Master thesis / Masteroppgave, 2015)Snow accumulation is the most spatially heterogeneous component of glacier mass balance calculations, yet it exhibits robust time stability in spatial distributions. This thesis examines the characteristics of time stability, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Air bubble penetration depths are investigated with a bottom‐mounted echosounder at a seabed observatory in northern Norway. We compare a 1‐year time series of observed bubble depth against modeled and estimated turbulent ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Abstract Compared to other Arctic ice masses, Svalbard glaciers are low-elevated with flat interior accumulation areas, resulting in a marked peak in their current hypsometry (area-elevation distribution) at ~450 m ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Igneous sills and laccoliths emplaced in sedimentary basins may significantly impact petroleum systems, both positively and negatively. Igneous intrusions provide heat to maturate regionally immature organic‐rich host ...
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(Master thesis / Masteroppgave, 2022)The significance of sea ice on acoustic wave propagation in the Arctic Ocean is extensively investigated, yet not completely understood. The Arctic sea ice is characterized by ice roughness and ice ridges and to properly ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The Kongsberg and Bamble lithotectonic domains of SE-Norway are known as classical Precambrian high-grade metamorphic terrains. The area has undergone extensive metasomatism with formation of albitites and scapolite-rich ...
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Low-grade Prehnite-Pumpellyite facies metamorphism in the Bamble sector, SE-NorwayRestricted Access (Master thesis / Masteroppgave, 2014)Low-grade metamorphic minerals have been found within the high-grade terrain in the Bamble sector, SE-Norway. The minerals prehnite and pumpellyite indicative of prehnite-pumpellyite facies conditions have been confirmed ...
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(Master thesis / Masteroppgave, 2014)A large-scale 2D seismic sequence analysis of the Lower Cretaceous successions in the eastern part of the south-western Barents Sea is presented. Well and shallow borehole data are used to further constrain and assist the ...
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(Master thesis / Masteroppgave, 2015)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract Earthquakes at lower crustal depths are common during continental collision. However, the coseismic weakening mechanisms required to propagate an earthquake at high pressures are poorly understood. Transient ...