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Tilgjengelige masteroppgaver ved Institutt for geovitenskap

Tilgjengelige masteroppgaver - pr. våren 2019. Her presenteres de aktuelle masteroppgavene ved Institutt for geovitenskap innen de fire ulike studieretningene:

- Strukturgeologi, petrologi og malmgeologi
- Arktisk marin geologi & geofysikk
- Sedimentologi & kvartærgeologi
- Petroleum geofag

Available master projects per spring 2019, for the four study lines:

- Structural Geology, Petrology & Ore Geology
- Arctic Marine Geology & Geophysics
- Sedimentology & Quaternary Geology
- Petroleum Geoscience


Strukturgeologi, petrologi, malmgeologi / Structural Geology, petrology, ore geology:

Tematiske oppgaver:

1) Strukturell analyse av mineraliseringer i prekambriske grønnsteinsbelter og gneiser i vest-Troms gneisregionen. Veiledere: Steffen G. Bergh (UiT) og Sabina Strmik-Palinkas (UiT)

2) Petrografiske og strukturelle studier av kvarts-karbonatårer i grønnsteinsbelter i vest-Troms gneisregionen: bruk av fluidinneslutninger, mikrotermometri, og stabil isotopgeokjemi som indikatorer for P-T utvikling og kilde til karbonat. Veiledere: Steffen G. Bergh (UiT) og Sabina Strmik-Palinkas (UiT)

3) Nikkelsulfidmineraliseringer i Hamngabbroen (1.8 Ga) på Senja, og relasjon til magmatiske og tektoniske strukturer. Veiledere Steffen G. Bergh (UiT) og Harald Hansen (UiT), i samarbeid med NGU (lab.).

4) Magmatiske og migmatittiske strukturer i Ersfjordgranitten på Kvaløya; radiometrisk datering og sammenheng med orogen deformasjon i vest-Troms gneisregionen. Veiledere: Steffen G. Bergh (UiT) og Harald Hansen (UiT), i samarbeid med NGU (lab.).

5) Regional sammenstilling og tektonisk analyse av mafiske intrusivganger (2.4 Ga) på Ringvassøya, vest-Troms gneisregionen. Veileder: Steffen G. Bergh (UiT)

6) Strukturstyrte fjellskred i Troms: analyse av berggrunn/strukturer, geomorfologi, og bevegelsesdata. Veiledere: Steffen G. Bergh (UiT) og Louise Vick (UiT), i samarbeid med NVE, NORCE, NGU, NGI, NTNU, mfl.

Alle oppgavene omfatter feltarbeid og innsamling av data og prøver for etterfølgende bearbeidelse, analyser, og tolkning i laboratoriet. For alle feltoppgavene er det en fordel å beherske digitale verktøy som ArcGIS software og Corel Draw, m.m.

 

Ore textures as indicators of ore-forming processes: A case study from the Damjan Fe-skarn deposit, Macedonia

The Damjan Fe-skarn deposit (10 Mt of ore at 35% Fe) is located in the Vardar zone, Republic of Macedonia. The ore mineralization composed predominantly of magnetite and hematite is hosted by the Paleogene flysch sequence. Ore deposition is spatially and temporally related with the postcollisional Oligocene volcanic activity (23–26 Ma).

The principal goals of the project is to determine the nature, origin, and evolution of the ore-forming fluids and to link ore textures with ore-forming conditions. The proposed project will combine fieldwork and analytical methods in laboratories (transmitted and reflected light microscopy, microstructural analysis, XRD, SEM/EDS, SEM/WDS, SEM/EBSD and fluid inclusion studies including LA-ICP-MS analyses).

Contact: Sabina Strmic Palinkas

Project on mineralogy and geochemistry of podiform chromite mineralization

Ophiolite are suites of ultramafic, mafic and felsic rocks that are interpreted as fragments of ancient oceanic crust and upper mantle. The Vardar Zone Ophiolite Complex extends along the central part of the Balkan peninsula, SE Europe and represents the main suture zone between the Adriatic and the Euroasian Plate. It preserves tectonic units related to evolution of the Tethys Ocean. Associated with ultramafic parts of the complex, the Vardar Zone Ophiolite Complex hosts numerous podiform chromite occurrences.

The proposed project will focus on mineralogy and geochemistry of the podiform chromite mineralization. The project will combine a sampling campaign at selected chromite occurrences in Kosovo, collection of analytical data (transmitted and reflected light microscopy, microstructural analysis, XRD, SEM/EDS, SEM/WDS, SEM/EBSD and LA-ICP-MS analyses) and the data interpretation.  

Main supervisor: Melanie Forien; co-supervisor: Sabina Strmic Palinkas


Analog and numerical investigations on the formation of layered mafic intrusions

Layering is a common feature in mafic and ultramafic layered intrusions and generally consists of a succession of layers characterized by contrasted mineral modes and/or mineral textures, including grain size and, locally, changing mineral compositions. Some famous examples of such feature are the Bushveld complex (South Africa) or, more locally, in the Seiland igneous provinces (Norway). The mechanisms behind the formation of layering have been extensively debated for many decades. In this master project, one promising mechanism will be investigated experimentally and numerically: the gravitational slumping of semi-consolidated cumulates from the margins of the intrusion into the magma chamber.

The proposed project will combine analog modeling with flume experiments, which will take place at the department, and numerical modeling, which will be conducted in collaboration with Dr. A. Burgisser from the University of Savoie (France).

Supervisor: Melanie Forien

NVE Seksjon for fjellskred har muligheter for tre masteroppgaver knyttet til følgende problemstillinger:


1) Oppgaver knyttet til oppfølging av enkeltobjekter som har behov for overvåking (periodisk eller kontinuerlig). Dette vil kunne være strukturgeologiske og geomorfologiske studier i kombinasjon  med fjernanalyse (LIDAR) og måling av bevegelse (bakkebasert radar) og eventuelt andre målemetoder. Det vil være aktuelt også med samarbeid med NORUT og NGU når det gjelder bruk av satellittbasert InSAR (radar). Aktuelle områder i Troms, Møre og Romsdal og Sogn og Fjordane.

2) Studier av steinsprang område, spesielt med bruk av høyoppløselige data fra fjernanalyse (LIDAR) i kildeområdene (strukturgeologi), men også feltstudier i utløpsområdene. Dette kombineres med bevegelsesdata fra bakkebasert radar og tolking av disse i kombinasjon med meteorologiske data. Det vil også være aktuelt med bruk av modellering av utløp av steinsprang. Aktuelt område ved Oksfjellet i Kåfjord.
Kontakt: Lars Harald Blikra

 

Pre-collisional evolution of the eastern Nico Perez Terrane (Dom Feliciano Belt) in eastern Uruguay

Fieldwork of this master project will be situated along the main collisional zone in southernmost part of the Neoproterozoic Kaoko-Dom Feliciano-Gariep orogenic system, which is exposed in eastern Uruguay. The student working on the project will spend ca. two weeks in the field to collect the samples for a geochronological study, which will involve dating of exposed basement rocks and dating of detrital zircons from weakly metamorphosed and deformed Mesoproterozoic sedimentary cover. The laboratory work will involve separation of zircons from the rock samples, cathodoluminescence imaging and dating of them by the Laser-Ablation-ICPMS in an external laboratory. The master student will become acquainted with basic methods of U-Pb geochronology, as well as with field methods of tectonic analysis of metamorphic terranes.

The master project is fully supported by the Norwegian Centre for International Cooperation in Education (SIU). In case that more students will be interested, the one with best study results will be given a priority.

Please note that the fieldwork must take place in November 2018 in order to get support from SIU!

Contact: Jiri Konopasek

Master project in structural geology with a focus on scanning electron microscopy

The project is about fabric formation in eclogites under ultrahigh pressure conditions. Eclogite samples from the Tromsø Nappe and the Western Gneiss Region (southwestern Norway) will be studied systematically regarding detailed chemical distribution and microstructures within the rocks major components. It will involve detailed and extensive SEM work (EDS / WDS / EBSD / CL) to combine (micro)structural, textural and petrological data and develop a model of what happens under peak metamorphic conditions regarding the driving forces of mineral shape and rock fabric formation. The project offers a possibility to learn electron microscopy techniques in great detail.

Contact: Kai Neufeld 


Deformation and mineral reactions of the contact between the Lyngen Nappe and units below, (Caledonides, Northern Norway) – 2 projects

The Lyngen Nappe is a unit of the upper allochthon in the Northern Caledonides and represents the only tectonic unit of clear oceanic affinity in the Northern Norwegian Caledonides. Originally interpreted as a thrust contact, there are indications that this contact might be a detachment or low angle normal fault instead. The objective of the project is to collect new structural data in the field as well as samples of the contact region for detailed microstructural and petrological studies in order to decide whether the contact is a thrust or detachment structure.

The field area for this project is mainly on the Lyngen peninsular and to the South of there. It is expected that the field work will require at least 4 to 6 weeks of field work during the summer. Students will work together with a PhD student in the same area and should be able to carry out mapping, structural analysis, and sampling in the field. In addition, microstructural work and petrology is to be carried out by light and electron microscopy and thermodynamic modeling.


Supervisors: Holger Stunitz, Jiri Konopasek

 

Arktisk marin geologi & geofysikk / Arctic Marine Geology & Geophysics:

Oppgaver innen flow, gasshydrater, relaterte geohazards, og som er interessert i å jobbe i sub-seabed gruppen i CAGE - ta kontakt med Stefan Buenz

Deglaciation of the Svalbard-Barents Sea ice sheet.

Sediment cores from the shelf or the slope of the Western Barents Sea. Oxygen and carbon isotopes, benthic and planktic foraminifera, AMS-14C datings, various sedimentological parameters.

Supervisor: Tine L. Rasmussen
Co-supervisors: others

 

High-resolution studies of millennial scale oceanographic and climatic changes, past and present
Material: Deep sea sediment cores from the Svalbard margin or the Faroe Islands margin or the East Greenland margin or Jan Mayen margin. Data: Stable isotopes, foraminifera, ice rafted debris, magnetic susceptibility. Search for tephra layers.
Supervisor: Tine L. Rasmussen
Co-supervisors: others

 

Foraminiferal fauna studies from methane seep areas
Material: Deep sea sediment cores from Vestnesa Ridge, Svalbard. Data: Oxygen and carbon isotopes, benthic and planktic foraminifera, AMS-14C datings, various sedimentological parameters.
Supervisor: Tine L. Rasmussen


Foraminiferal fauna studies from outside methane seep areas

Material: Deep sea sediment cores from Vestnesa Ridge, Svalbard. Data: Oxygen and carbon isotopes, benthic and planktic foraminifera, AMS-14C datings, various sedimentological parameters.
Supervisor: Tine L. Rasmussen

 

Reconstruction of variability of the East Greenland Current and Atlantic Intermediate Water
Material: Deep sea sediment cores from east Greenland or Jan Mayen. Data: Stable isotopes, foraminifera, Mg/Ca ratios, various sedimentological parameters. Search for tephra layers.
Supervisor: Tine L. Rasmussen
Co-supervisors: others

 

Planktic foraminifera and ocean acidification off east Greenland and Jan Mayen, past and present
Material: Deep sea sediment cores, surface samples and plankton net tows from the east Greenland and Jan Mayen margins. Data: Shell weight, species identification, geochemistry.
Supervisor: Tine L. Rasmussen
Co-supervisors: Katarzyna Zamelczyk


Benthic  foraminifera and ocean acidification of the Nordic seas, past and present

Material: Deep sea sediment cores and surface samples from the Fram Strait and the Nordic seas margins. Data: Shell weight, species identification, geochemistry.
Supervisor: Tine L. Rasmussen
Co-supervisors: Katarzyna Zamelczyk

High-resolution studies of oceanographic and climatic changes during the Last Glacial Maximum (LGM).
We can offer several master projects concerning the LGM – each from a different geographical area in the Nordic seas. We have sediment cores with high resolution dating from the LGM:
1) Deep-sea sediment cores from the Svalbard margin.
2a-c) Western Norwegian margin (Lofoten; Vøring Plateau; Faroe Islands),
3) East Greenland Ridge. Data: Various combination of e.g. stable isotopes, planktic and/or benthic foraminifera, Mg/Ca, sortable silt, ice rafted debris, magnetic susceptibility. Tephra layers.
Supervisor: Tine L. Rasmussen, various co-supervisors.

Dating methane seeping events in the Arctic during the Cenozoic

Supervisors: Giuliana Panieri and Jochen Knies (CAGE)


The Pleistocene stratigraphy in the Arctic-Atlantic gateway

Supervisors: Giuliana Panieri and Jochen Knies (CAGE)

Foraminiferal geochemistry as a proxy to reconstruct methane emission events: modern and past examples
Supervisor: Giuliana Panieri

Biostratigraphy (Knies J., Dessandier P.-A, Panieri G.) (2 master theses)

Picking foraminifera in two drilling cores (MeBO 125 and 126) providing high-resolution assemblages in order to correlate the chronology of the two records and determine the frequency of methane seepage events in the Lunde pockmark (Vestnesa Ridge). Analysis of a large dataset including XRF scans, grain size, organic compounds and stable isotopes measured on foraminifera; aiming at better understand the interactions between environmental changes and methane release in the NW Svalbard.
Contacts: Pierre-Antoine Dessandier and Giuliana Panieri

Benthic foraminiferal ecology (Dessandier P.-A, Panieri G.) (2 master theses)

Samples sieving and picking of living benthic foraminifera characterized by past or modern methane seepage activity. Identification of the major species and comparison with environmental parameters (organic elements and isotopes) in reference and methane-impacted sediments in the Arctic from several areas. Analyses of stable isotopes on living benthic foraminifera in order to investigate its relationship with the isotopes of dissolved inorganic carbon.
Contacts: Pierre-Antoine Dessandier and Giuliana Panieri


Hydro-acoustic analysis for free gas seepage detection and flux estimate

Objective: estimate temporal and spatial variations of methane seepage activity in the Arctic and the Barents Sea

Method: detect free gas seepage from echosounder data and calculate their flow rate using the software FlareHunter

Supervisor: Bénédicte Ferré (CAGE)

Time-series analysis of methane seepage and associated physical parameters offshore Svalbard and in the Barents Sea

Two seafloor observatories provide acoustic as well as physical and chemical data on targeted methane seepage areas. The master student will estimate methane fluxes and analyse the causality between methane release and other measured parameters in order to understand possible links.

Supervisor: Bénédicte Ferré (CAGE)

Bottom simulating reflector dynamics in a region with vertical fluid expulsion and massive gas hydrates off west-Svalbard

The project is conceived as part of ongoing work at CAGE to further develop our understanding of the mechanisms controlling gas hydrate dynamic over geological time in the Arctic.

Objective: the aim of the project is to investigate the external mechanism determining the depth of the gas hydrate stability zone (i.e., the bottom simulating seismic reflector) in a zone with diapir-like fluid expulsion located between the Vestnesa Ridge and the west Svalbard continental shelf break. To this end the master project would work with the following specific objective:

- To introduce stratigraphic constraints into recently acquired seismic data in the region

- To interpret available high-resolution 2D seismic data in terms of geological structures and fluid flow features

- To build a P-wave velocity model using interval velocity constraints from previous studies in the area

- To model the base of the gas hydrate stability zone

- To compare the investigated system with adjacent and more deeply investigated systems like e.g., the gas hydrate system in the Vestnesa Ridge.


Data:

-  Bathymetry

-  High-resolution 2D seismic profiles

-  Stratigraphic constraints and P-wave velocity from publications

-  Diverse kind of data sets from research campaigns to the area (e.g., CTD, gas hydrate recovery images, density and sonic logs from gravity cores)


Software:

-  Petrel (for seismic and bathymetry interpretation; for analyzing all the data sets together)

- The gas hydrate modeling interface by Sunil Vadakkepuliyambatta (based on Sloan’s gas hydrate stability phase boundary curve).

- Corel draw or similar (for conceptual models and illustrations)

Contact: Andreia Plaza Faverola

Sedimentologi & kvartærgeologi / Sedimentology & Quaternary Geology:

Master theses in Quaternary and glacial geology: We welcome students to meet us and discuss possibilities for M.Sc. projects.
Contact anders.schomacker@uit.no for more information.


Sedimentary development of a fjord valley in Mid-Norway (near Orkanger)

The aim of the project is to unravel the sedimentary history of a typical fjord valley in Mid Norway. The study involves the morphological analysis of LiDAR data, facies analysis of sedimentary exposures and interpretation of ground penetrating radar. A few radiocarbon dates and scattered drill hole data are also available. The project will involve the study of deposits from different depositional environments as a function of long-term climatic and sea level changes as well as shorter-term processes such as landslide activity. The project is done in association to Quaternary mapping at NGU, that aims at meeting various societal needs for geological information e.g. in decision making. Preferred candidates have had advanced courses in Quaternary geology and Sedimentology and some field experience. Good GIS skills are an advantage. Driver’s license is required.

For further info, contact Professor Anders Schomacker: anders.schomacker@uit.no


Investigations of deep seated gravitational slope deformations ins Austria in collaboration with the Geological Survey Austria.

Contact: Anne Hormes

 

Master theses in Geohazards and UAS photogrammtry:
We welcome students to meet us and discuss possibilities for M.Sc. projects. 
Contact Anne Hormes for more information.


Reconstructing interstadial environments in northern Scandinavia

Start date: August/September 2018, possible for two master projects.

Supervisors: Prof. Helena Alexanderson, Lund University, Sweden and Prof. Anders Schomacker, UiT.

Contact: Helena.alexanderson@geol.lu.se or anders.schomacker@uit.no

Project details:

The Veiki moraines of northern Sweden are interpreted as ice-walled lake plains formed during a pre-LGM deglaciation, although both their age and formation process are debated. The lake sediments within the moraines contain palaeoenvironmental records of at least one Weichselian interstadial which we aim to study by coring basins in one or two Veiki moraine plateaux in the Lainio area of northern Sweden. The sites are selected based on previous geomorphological and ground penetrating radar surveys. The task of the student(s) will be to participate in the field work (in Sept.-Oct. 2018), to carry out sedimentological descriptions and do or contribute to additional analyses such as luminescence dating, radiocarbon dating, XRF, LOI/TOC or pollen analysis. The choice of methods depends on the type of sediments retrieved and the interest of the student. Key questions to answer include: When did the Veiki moraines form? What was the environment like during their formation? What do they tell us about the glacial history of northern Scandinavia? 



Petroleum Geofag / Petroleum Geoscience:


Projects under planning.
For any requests, please contact possible supervisors at ARCEx




Ansvarlig for siden: Kai Mortensen
Sist oppdatert: 19.06.2019 14:17