Blar i Bergen Open Research Archive på tittel
Viser treff 13021-13040 av 35876
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Geochemical and Isotopic Fractionation in the Hypogene Ore, Gossan, and Saprolite of the Alvo 118 Deposit: Implications for Copper Exploration in the Regolith of the Carajás Mineral Province
(Journal article; Peer reviewed, 2023)In the Carajás Mineral Province, gossan formation and lateritization have produced numerous supergene orebodies at the expense of IOCG deposits and host rocks. The Alvo 118 deposit comprises massive and disseminated hypogene ... -
Geochemical and microtextural characteristics reflect the formation mechanics of laminated iron deposits at the Perle & Bruse and Troll Wall vent fields
(Master thesis, 2017-08-31)Located at the southern section of the Artic Mid-Ocean Ridge, the Jan Mayen Vent Fields (JMVF) consist of three main hydrothermal sites, the Troll Wall, Perle & Bruse and Soria Moria. These sites contain numerous Fe-deposits, ... -
Geochemical characteristics of the gold-bearing quartz veins in the Lykling area, Bømlo, SW Norway
(Master thesis, 2021-09-11) -
Geochemical characteristics of volcanogenic massive sulfide mineralizations on Bømlo and Stord islands, Sunnhordaland, SW Norway
(Master thesis, 2021-09-11)The results from the present study have brought forward new knowledge about geochemical, mineralogical, stable isotope and trace element data for volcanogenic massive sulfide deposits hosted within Early Ordovician Ophiolitic ... -
Geochemical characterization of ophiolites in the Alpine-Himalayan Orogenic Belt: Magmatically and tectonically diverse evolution of the Mesozoic Neotethyan oceanic crust
(Journal article; Peer reviewed, 2020)Ophiolites are important archives of oceanic crust development and preservation in the rock record, and the Alpine-Himalayan Orogenic Belt (AHOB) is one of the most comprehensive ophiolite depositories in earth’s history. ... -
Geochemical characterization of the Gnitahei seafloor massive sulfide deposit, Arctic Mid-Ocean Ridge
(Master thesis, 2022-06-29)The Gnitahei SMS deposit (72.75°N 3.81°E) is a newly discovered seafloor massive sulfide deposit located on the slow to ultraslow spreading Mohns Ridge in the Arctic Mid-Ocean Ridge system. The deposit was discovered by ... -
Geochemical transition zone powering microbial growth in subsurface sediments
(Journal article; Peer reviewed, 2020)No other environment hosts as many microbial cells as the marine sedimentary biosphere. While the majority of these cells are expected to be alive, they are speculated to be persisting in a state of maintenance without net ... -
Geochemistry and geochronology of hydrothermally enriched sediments associated with three vent fields along the Mohns Ridge
(Master thesis, 2024-06-03)Hydrothermally enriched sediments are linked to hydrothermal systems on the seafloor, and thus, studies utilizing sediment cores represent a narrative method to investigate hydrothermal activity. Plume particles from active ... -
Geochemistry of hydrothermal fluids from the E2-segment of the East Scotia Ridge: Magmatic input, reaction zone processes, fluid mixing regimes and bioenergetic landscapes
(Journal article; Peer reviewed, 2022)The compositions of hydrothermal fluids in back-arc basins (BABs) can be affected by the influx of magmatic fluids into systems that are dominated by reactions between basement rocks and seawater-derived fluids. The East ... -
Geochemistry of lava samples collected near the oceanic detachments at 13°N along the Mid-Atlantic Ridge
(Master thesis, 2017-09-25)The structure and composition of the oceanic lithosphere is mainly controled by the supply of magmatic melts to the ridge axis. At slow-spreading, mid-oceanic ridges are characterized by complex spreading styles, where ... -
A geochronological review of magmatism along the external margin of Columbia and in the Grenville-age orogens forming the core of Rodinia
(Journal article; Peer reviewed, 2022)A total of 4344 magmatic U-Pb ages in the range 2300 to 800 Ma have been compiled from the Great Proterozoic Accretionary Orogen along the margin of the Columbia / Nuna supercontinent and from the subsequent Grenvillian ... -
Geochronology and tectonic setting of voluminous granitoids and related rocks and associated extensional structures in Dronning Maud Land (East Antarctica)
(Master thesis, 2011-06-15)The history of the tectonic evolution in central Dronning Maud Land (cDML), East Antarctica can be inferred from various zircon grains for U-Pb zircon age determination with the Laser-Ablation Inductively-Coupled-Plasma ... -
Geodiversity and Biodiversity
(Journal article; Peer reviewed, 2023)Non-living and living nature are inherently connected. Geodiversity, which consists of the variation in geology, soils, topography, geomorphology and hydrology, is seen as the foundation and stage for biodiversity. Underlying ... -
Geodiversity and biodiversity on a volcanic island: The role of scattered phonolites for plant diversity and performance
(Journal article; Peer reviewed, 2022)Oceanic islands are cradles of endemism, contributing substantially to global biodiversity. A similarity in magmatic origin translates into high global comparability of substrates of volcanic islands on the oceanic crust ... -
Geofaglig vurdering av konsekvenser ved klimaframskrivinger for verdensarvområdet Vestnorsk fjordlandskap, delområde Geirangerfjorden
(Master thesis, 2022-06-01)I Møre og Romsdal er det forventet en økning i temperatur og nedbør frem mot perioden 2071-2100. Dette inkluderer en økning i årlig middeltemperatur på ca. 3,5-4,0 ºC og en økning i årsnedbør på 15%. Økningen vil føre til ... -
Geofysiske og sedimentologiske undersøkelser av israndavsetningene fremfor Esmarkmorenen, Rogaland
(Master thesis, 2016-09-01)Det første geologiske arbeidet som ble gjort i Forsand ble gjort av Jens Esmark på 1800- tallet, da han beskrev det vi i dag kaller Esmarkmorenen/Vassryggen og sletteområdet foran. Han konkluderte med at dette var ... -
Geofysiske undersøkingar på Giskegjerdet
(Arkeologiske utgravingsrapporter fra Fornminneseksjonen;20-2021, Research report, 2021)I veke 39 2020 vart det gjennomført ei geofysisk undersøking på garden Giskegjerdet på øya Giske i Giske kommune. Målet med undersøkinga var å kartlegge førekomst av ikkje synlege kulturminne i grunnen her, særleg med tanke ... -
Geogebra og funksjonar. Elevane si tilnærming til representasjonsskifte i arbeid med funksjonar, med og utan bruk av Geogebra, i matematikk på vidaregåande skule.
(Master thesis, 2018-06-20)Digitale hjelpemiddel har for lengst fått sin plass i matematikkundervisninga i norsk skule. I den vidaregåande skulen har dataprogram med grafteiknar også langt på veg erstatta kalkulatorar, som digitalt hjelpemiddel i ... -
Geografisk bevissthet hos velgere, lokalpolitikere og forvaltningsansatte
(Journal article; Peer reviewed, 2022)Geografiske skillelinjer ble igjen sentrale for norske velgere under Solberg-regjeringen. Slike politiske spenninger kan komme til uttrykk gjennom det vi kaller en geografisk bevissthet – et syn på geografisk fordeling av ... -
Geografisk konflikt i det politiske landskapet: En fortelling om to dimensjoner
(Journal article; Peer reviewed, 2020)I denne artikkelen undersøker vi geografiske og territorielle skiller i dagens norske politiske landskap der innbyggerne i bygd og by, i sentrum og periferi har kommet nærmere hverandre på grunn av teknologisk og ...