Department of Earth Science
Nye registreringer
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Structural reconstructions of the Eastern Barents Sea at Meso-Tertiary evolution and influence on petroleum potential
(Journal article; Peer reviewed, 2021)Barents Sea basin is the most explored and studied by the regional and petroleum geologists on the Russian Arctic shelf and has approved gas reserves. However, there are many questions in the petroleum exploration, one of ... -
Compositions of dissolved organic matter in the ice-covered waters above the Aurora hydrothermal vent system, Gakkel Ridge, Arctic Ocean
(Journal article; Peer reviewed, 2022)Hydrothermal vents modify and displace subsurface dissolved organic matter (DOM) into the ocean. Once in the ocean, this DOM is transported together with elements, particles, dissolved gases and biomass along with the ... -
The Volcanic Hazards of Jan Mayen Island (North-Atlantic)
(Journal article; Peer reviewed, 2022)Hazard assessment of remote volcanic islands provides many challenges compared to other volcanoes and volcanic fields. Here we present the first systematic volcanic hazard assessment of Jan Mayen Island, a remote island ... -
High-Resolution Ps Receiver Function Imaging of the Crust and Mantle Lithosphere Beneath Southern New England and Tectonic Implications
(Journal article; Peer reviewed, 2021)Southern New England exhibits diverse geologic features resulting from past tectonic events. These include Proterozoic and early Paleozoic Laurentian units in the west, several Gondwana-derived terranes that accreted during ... -
HOLOCENE MARINGEOLOGISKE PROSESSER I SØRFJORDEN, OSTERØY
(Master thesis, 2022-03-07)De vestnorske fjordbassengene inneholder høytoppløselige arkiver som kan brukes for å studere og rekonstruere avsetningsmiljøet i fjordene. I dette studiet har de holocene avsetningsprosessene i den østlige delen av ... -
A global ecological classification of coastal segment units: To complement marine biodiversity observation network assessments
(Journal article; Peer reviewed, 2021)A new data layer provides Coastal and Marine Ecological Classification Standard (CMECS) labels for global coastal segments at 1 km or shorter resolution. These characteristics are summarized for six US Marine Biodiversity ... -
Sensitivity of the Greenland surface mass and energy balance to uncertainties in key model parameters
(Journal article; Peer reviewed, 2021)We investigate the sensitivity of a distributed glacier surface mass and energy balance model using a variance-based analysis, for two distinct periods of the last glacial cycle: the present day (PD) and the Last Glacial ... -
Genomes of Thaumarchaeota from deep sea sediments reveal specific adaptations of three independently evolved lineages
(Journal article; Peer reviewed, 2021)Marine sediments represent a vast habitat for complex microbiomes. Among these, ammonia oxidizing archaea (AOA) of the phylum Thaumarchaeota are one of the most common, yet little explored, inhabitants, which seem ... -
On how the power supply shapes microbial survival
(Journal article; Peer reviewed, 2021)Understanding how environmental factors affect microbial survival is an important open problem in microbial ecology. Patterns of microbial community structure have been characterized across a wide range of different ... -
Pockmarks i indre Aurlandsfjorden: Aktive eller inaktive lekkasjestrukturer Dannelse, alder og biogeokjemiske prosesser
(Master thesis, 2022-03-07)Ved bruk av høyoppløselige batymetris data er det i indre Aurlandsfjorden, Vest-Norge, kartlagt et område på c. 1.2 km2, på vanndyp mellom 40-72 m.u.h. hvor det er identifisert minst 18 pockmark strukturer. De har en ... -
BLOKKHAV PÅ FJELLTOPPER PÅ YTRE SUNNMØRE OG LANGS INDRE ROMSDALSFJORDEN
(Master thesis, 2022-03-07)Åtte blokkhavsdekkede topper på ytre Sunnmøre og langs indre Romsdalsfjorden viser varierende overflatekarakteristikk og en stor spredning i 10Be-aldre. Aldrene strekker seg fra 15 ± 1 ka til 151 ± 2 ka, uten noen tydelige ... -
Detecting anaerobic methane oxidation coupled to sulfate reduction in hydrothermal sediments
(Master thesis, 2022-03-07)The barite field is a low-temperature vent field, characterized by microbial activity and high fluid values of $NH_4$, $SO_4^{2-}$, and $CH_4$. Geochemical analysis indicates a hydrothermal system with a sedimentary input ... -
Modeling the Greenland englacial stratigraphy
(Journal article; Peer reviewed, 2021)Radar reflections from the interior of the Greenland ice sheet contain a comprehensive archive of past accumulation rates, ice dynamics, and basal melting. Combining these data with dynamic ice sheet models may greatly aid ... -
A first continuous three-year temperature record from the dimictic arctic–alpine Lake Tarfala, northern Sweden
(Journal article; Peer reviewed, 2021)Arctic lakes are exposed to warming during increasingly longer ice-free periods and, if located in glaciated areas, to increased inflow of meltwater and sediments. However, direct monitoring of how such lakes respond to ... -
The Role of Subduction Interface and Upper Plate Strength on Back-Arc Extension: Application to Mediterranean Back-Arc Basins
(Journal article; Peer reviewed, 2021)While there has been a lot of work focusing on improving our understanding of divergent and convergent plate boundaries, the intricate nature of back-arc extension, where subduction and large-scale extension occur and ... -
Southern Ocean bottom-water cooling and ice sheet expansion during the middle Miocene climate transition
(Journal article; Peer reviewed, 2021)The middle Miocene climate transition (MMCT), around 14 Ma, was associated with a significant climatic shift, but the mechanisms triggering the event remain enigmatic. We present a clumped isotope (Δ47) bottom-water ... -
Insights into past tectonism from authigenic quartz
(Journal article; Peer reviewed, 2021)Authigenic quartz grains carry information that is diagnostic for the thermal history and thereby the burial depth and uplift of sediments. Recycled quartz grains with embayed or rounded authigenic remnants have been ... -
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s
(Journal article; Peer reviewed, 2021)The diachronic analysis of aerial and satellite imagery, uncrewed aerial vehicle (UAV) and in situ surveys obtained between 1956 and 2019 are employed to analyse landform surface kinematics for the Tapado site located in ... -
Morris Jesup Spur and Rise north of Greenland – exploring present seabed features, the history of sediment deposition, volcanism and tectonic deformation at a Late Cretaceous/early Cenozoic triple junction in the Arctic Ocean
(Journal article; Peer reviewed, 2021)The narrow Morris Jesup Spur and an adjacent broader western rise extend 220 km into the Eurasia Basin from the shelf edge north of Greenland. We have used a hovercraft platform drifting with the sea to collect the first ...
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