English
norskArtikler, rapporter og annet (geovitenskap): Recent submissions
Now showing items 781-800 of 816
-
Geophysical constraints on the dynamics and retreat of the Barents Sea ice sheet as a palaeobenchmark for models of marine icesheet deglaciation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-14)Our understanding of processes relating to the retreat of marine-based ice sheets, such as the West Antarctic Ice Sheet and tidewater-terminating glaciers in Greenland today, is still limited. In particular, the role of ice-stream instabilities and oceanographic dynamics in driving their collapse are poorly constrained beyond observational timescales. Over numerous glaciations during the Quaternary, ... -
Controls on gas hydrate system evolution in a region of active fluid flow in the SW Barents Sea
(Journal article; Tidsskriftartikkel, 2015-09)The location and stability of gas hydrates in the SW Barents Sea is poorly constrained due to complex geological, geochemical, and geophysical conditions, including poor controls on regional heat flow and gas chemistry. Understanding the stability of gas hydrates in this region is important, as recent studies suggest destabilizing hydrates may lead to methane discharge into the ocean and possibly ... -
Til IBGs 20-års-jubileum
(Kronikk; Chronicle, 1992) -
Effects of mortality changes on biomass and production in Calanus spp. populations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011-04-28)Calanus species are the main link between primary producers and higher trophic-level organisms in the Barents Sea. The natural mortality rate is an essential parameter for determining the standing stock of Calanus, but it is also one of the most uncertain parameters in present knowledge. The level of human activity, and the associated risk of pollution, is increasing in the Barents Sea, and knowledge ... -
Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-03-31)Recent studies have highlighted the dynamic behavior of marine-terminating outlet glaciers over decadal time scales, linked to both atmospheric and oceanic warming. This helps explain episodes of nearly synchronous fl ow acceleration, thinning, and retreat, but nonclimatic factors such as changes in fjord width and depth, can also induce rapid recession. There is support for these topographic ... -
Optimising the use of marine tephrochronology in the North Atlantic: a detailed investigation of the Faroe Marine Ash Zones II, III and IV
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
A North Atlantic tephrostratigraphical framework for 130–60 ka b2k: new tephra discoveries, marine-based correlations, and future challenges
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Temporal and spatial structure of multi-millennial temperature changes at high latitudes during the Last Interglacial
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Semibrittle deformation and partial melting of perthitic K-feldspar: An experimental study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Linking onshore-offshore basement rock architecture and brittle faults on the submerged strandflat along the SW Barents Sea margin, using high-resolution (5 x 5 m) bathymetry data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Carbon isotope (d13C) excursions suggest times of major methane release during the last 14 ka in Fram Strait, the deep-water gateway to the Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Subglacial roughness of the former Barents Sea ice sheet
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)The roughness of a glacier bed has high importance for the estimation of the sliding velocity and can also provide valuable insights into the dynamics and history of ice sheets, depending on scale. Measurement of basal properties in present-day ice sheets is restricted to ground-penetrating radar and seismics, with surveys retrieving relatively coarse data sets. Deglaciated areas, like the Barents ... -
Re-evaluation and extension of the Marine Isotope Stage 5 tephrostratigraphy of the Faroe Islands region: The cryptotephra record
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
A Late Glacial–Early Holocene multiproxy record from the eastern Fram Strait, Polar North Atlantic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
On Palaeozoic-Mesozoic brittle normal faults along the SW Barents Sea margin: fault processes and implications for basement permeability and margin evolution
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014) -
Submarine gas seepage in a mixed contractional and shear deformation regime: Cases from the Hikurangi oblique-subduction margin
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-11) -
Role of tectonic stress in seepage evolution along the gas hydrate-charged Vestnesa Ridge, Fram Strait
(Journal article; Tidsskriftartikkel, 2015-02-03) -
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-01-23)A marine sediment core (JM09-KA11-GC) from the Kveithola Trough at the western Barents Sea margin has been investigated in order to reconstruct sub-surface temperatures and sea ice distribution at a sub-centennial resolution throughout the Holocene. The relationship between past variability of Atlantic water inflow and sea ice distribution has been established by measurement of planktic foraminifera, ... -
Reconstruction of Atlantic Water variability during the Holocene in the western Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-01-10)The gravity core JM09-KA11-GC from 345m water depth on the western Barents Sea margin was investigated for down-core distribution patterns of benthic Foraminifera, stable isotopes, and sedimentological parameters in order to reconstruct the flow of Atlantic water during the Holocene. The core site is located below the Atlantic water masses flowing into the Arctic Ocean and close to the Arctic front. ... -
First record of catacrinid crinoid from the Lower Permian of Spitsbergen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)An early Permian (late Artinskian–Roadian) cladid crinoid (Catacrinidae gen. et sp. indet.) is reported for the first time from the Vøringen Member of the Kapp Starostin Formation of Spitsbergen. The specimen is partly articulated and preserves a considerable part of its stalk and a complete cup, but only the proximal portions of its arms. Thus, it can− not be identified with any degree of ...
