Category: Personer

Hakan Heggernes

Hi everyone! My name is Hakan and I started my PhD in structural geology in the middle of April, just after Easter. Professor Atle Rotevatn is my supervisor. I am from Bergen and I have pretty much done my entire education at UiB, with the exception of an exchange semester at Utrecht University in the Netherlands. I finished my bachelor’s degree in 2017, and I finished my master’s degrees in sedimentology and structural geology in June 2019.

At UiB I will be part of the Basin and Reservoir Studies group. During my PhD project I will investigate structural and stratigraphic controls on fluid flow in a range of sandstones. The main focus will be on poroperm properties, network properties and the distribution of sub-seismic structures like deformation bands and faults. The work will include core analysis from the Ivar Aasen field in the North Sea, and outcrop analysis from fieldwork, which will work as analogues to subsurface reservoirs.

When we get back to UiB, which hopefully is soon, you can find me in office 2152A. Velkommen til GEO 🙂

Marie Eide Lien

Hi everyone!
My name is Marie, and just recently I started my 4-year PhD project with Thibaut Barreyre as my supervisor, and I will work with sub-surface fluid flow dynamics in hydrothermal systems. The project’s aim is to unravel the complex mechanisms that affect fluid flow in the sub-surface of these systems through observation, data analysis, and modelling. Further details of the project is a work-in-progress still.

I acquired both my bachelor and master degrees at UiB, so I am happy to be back!  During my master I had the pleasure of working with Asc. Prof Henk Keers on my geophysics MSc project titled “Analysis of Magma Chamber Activity at Yellowstone from 2010 to 2017”. The aim was to explain the observed surface deformation and associated seismicity using  seismic tomography models and inverted deformation data for volume changes in the underlying magma chamber. I also spent time researching the Yellowstone hydrothermal system and its possible relation to the seismicity and deformation.

I graduated from UiB in 2017. I then left Bergen to work as a high school teacher through a program, which aim is to motivate students in all social classes for STEM. As a part of the program I also obtained a teaching degree at the University of Oslo. During the summer of 2019 I moved back to Bergen and interning at Equinor in petroleum technology, a chance to also gain more experience in seismic and structural interpretation, production and field development.

Although I am in my home-office, glancing at RFB through my window, it’s great to be back at GEO. I look forward to see both well-known and new faces when we’re all back on campus. At Campus you will find Marie in room 3153a. Welcome to Geo 🙂

Disputas: Magnhild Sydnes

Magnhild Sydnes disputerte torsdag 23.4 for doktorgraden med avhandlingen “Effects of magmatic intrusions on temperature history and diagenesis in sedimentary basins – and the impact on petroleum systems”.

Professor Søren Bom Nielsen ved Aarhus Universitet, Danmark, og professor Sonja Philipp
ved Georg-August-Universität Göttingen, Tyskland, var opponenter, mens professor Stéphane Rondenay, GEO, intern sensor. professor Joachim Jacobs, GEO, ledet disputasen.

Doktorgradsprosjektet har blitt veiledet av professor Rolf Mjelde GEO, og Willy Fjeldskaar, Ingrid Fjeldskaar Løtveit og Ivar Grunnaleite ved Tectonor AS.

Lenke til pressemeldingen. Lenke til avhandlingen. Vi gratulerer 🙂

Seismology Seminar in Solstrand, 20-21 February 2020

Fotograf: ansatt fra Solstrand

On 20 and 21 February all seismologists from GEO and all people affiliated with NNSN participated in a productive offsite meeting in Solstrand. This meeting was attended by twenty-one people, including a guest from NGU. It consisted of two parts. The first part was a regular session with eight interesting presentations on various topics related to seismology in Norway and the Arctic. There was an extra presentation that celebrated the career of Terje Utheim who retired in February.
The second part of the meeting consisted of two parallel breakout sessions. The first one was on practical aspects of NNSN and the second one consisted of discussions related to ongoing research projects. The meeting was very successful and luckily happened shortly before the lockdown. The attached picture shows the participants of the Seismology Seminar.

Disputas: Karen Cecilie Johannessen

Foto: Privat

Karen Cecilie Johannessen disputerte fredag 17. april for doktorgraden med avhandlingen “Biosignatures of iron-oxidizing bacteria in modern hydrothermal deposits and Proterozoic jaspers”.

Doktorgradsprosjektet har blitt veiledet av professor Ingunn Hindenes Thorseth ved Institutt for geovitenskap, og forsker Nicola McLoughlin ved Rhodes University, Sør-Afrika.

Professor Danielle Fortin fra University of Ottawa, Canada, og forskningsdirektør Karim Benzerara fra Sorbonne, Frankrike, var eksterne opponenter, mens forsker Steffen Leth Jørgensen ved Institutt for geovitenskap var internt medlem i komiteen.

På grunn av den pågående koronasituasjonen ble disputasen arrangert digitalt, og vi har dessverre ingen bilder av alle samlet. Gratulerer 🙂
Lenke til pressemeldingen.

Johanna Marquardt – new employee at GEO

Hi everyone, My name is Johanna and I just started my PhD at the UiB with Nele Meckler! So far, I can only join you virtually via home-office from Germany due to the current Corona situation, but I hope that I will be able to physically meet you soon. My PhD project aims to reconstruct ocean temperatures during past episodes of greenhouse climate in the Cenozoic, and potentially also during major Cenozoic climate transitions. Thereby, at least a part of the project will focus on the early Eocene warm period ~50 Myrs ago. I will use clumped isotope paleothermometry on foraminifera (marine calcareous microfossils) and I would like to compare the resulting data with results of other paleotemperature proxies as well as climate model output.

For the last 2 years, I worked as a lab technician for the SWEET project (Super-Warm Early Eocene Temperatures and climate) with Phil Sexton at the Open University, UK. This project aims to reconstruct climate conditions during the extreme greenhouse warmth of the early Eocene. Besides maintenance of the microscope laboratory, my role in this project was to process deep-sea sediment samples and to pick multiple species of planktic and benthic foraminifera and fish teeth for C, O, B and Nd isotope analyses. The resulting data will form the basis for reconstructions of past ocean pH and atmospheric CO2 concentrations during the early Eocene, as well as complementary reconstructions of ocean circulation and temperatures.

I obtained my BSc in geosciences and my MSc in marine geosciences at the University of Bremen, Germany, with the focus on marine environmental archives, climate change and marine sedimentology. For my Master’s Thesis, I used O and C isotope analyses of foraminifera to reconstruct the late Quaternary evolution of intermediate water masses off Newfoundland under the supervision of Stefan Mulitza and Rüdiger Stein and investigated how surface freshwater input affected the intermediate water mass formation.

I already studied at the UiB several years ago during my Bachelor programme, and I am excited to join you again and to finally learn Norwegian! You will find (hopefully soon) Johanna in room 3153B Welcome to GEO Johanna 🙂

Andreas Beinlich

Hi Geo! I joined the department on February 1st and will contribute to research and education in Petrology and Mineral Resources with a focus on fluid-rock interactions. I am German and have a Diplom in Geology from the University of Würzburg and a Postgraduate Diploma in Science/Geology from the University of Otago, New Zealand. For my PhD at the University of Oslo I was working on ultramafic rock carbonation in systems spanning surface weathering to mid-crustal hydrothermal. Subsequently, I did a 3-year postdoc at The University of British Columbia (Vancouver, Canada), where I joined the Mineral Deposit Research Unit as project coordinator of the Carbonate Alteration Footprint (CAF) project. For the CAF project we further developed the application of stable oxygen and carbon isotopes as an exploration tool for carbonate-hosted hydrothermal ore deposits. For my second postdoc I joined The Institute for Geoscience Research (TIGeR) at Curtin University in Perth, Australia. There, I continued to work on fluid-solid/rock interaction processes with a wide range of applications from purely scientific to applied using an integrated approach of field observations, experiments in the laboratory, and theoretical modeling. Some of the key topics are the timescale of hydrothermal reaction front propagation, ophiolite carbonation (ICDP OmanDP), coupled mineral replacement reactions and mass transport in sulfide-bearing ultramafic systems, the interplay between deformation, fluid flow and alteration, and experimental investigation of Li and Cu extraction by fluid-driven solid-solid replacement reactions.

At UiB Geo I am going to continue my cross-disciplinary research approach to better understand active ocean floor alteration and mineralization by integrating shipboard/field work with extended experimental capabilities and analysis. My current research and active interests are the geological carbon cycle and the efficiency (or lack thereof) of carbon transport into the Earth’s mantle, the geophysical footprint of pervasive hydrothermal alteration, fluid flow through the crust in general, ore mineral tenor upgrade and metal liberation through fluid-solid interaction, and the feedbacks between concomitantly occurring mineral replacement reactions.

I am looking forward to chatting and collaborating with as many of you as I can. Thanks for having me! You find Andreas in room 4104 – Welcome to GEO 🙂

Tor Oftedal Sømme – Førsteamanuensis II ved GEO

Foto: Privat

Hi, I have recently started in an adjunct position through the Akademia Agreement. My background is also from UiB, where I took my Master and PhD. Since 2012 I have worked in Statoil/Equinor with international exploration and this position has allowed me to do regional work in most continents of the world. Approximately one year ago I moved into the research department where I currently work in the sedimentology and stratigraphy group. My daily work now involves regional studies in South America and the North Atlantic, where we are undertaking tectonostratigraphic analysis of the margins and basins. This work also includes following up and integrating external academic projects and results that are relevant for our regional understanding.

My main research interest is to study recent (Quaternary) and ancient (Mesozoic) erosional-depositional systems to better understand and quantify how they respond to tectonic and climatic perturbations. The North Atlantic continental margin is one of the areas where this can be investigated at various levels and represents a key study area for further work. This type of analysis required interdisciplinary collaboration and integration of stratigraphy, thermochronology, geodynamics and structural geology. The goal is to make integrated models that can better predict and capture the stratigraphic variability that is present along this and other continental margins.

My daily work place is in Oslo but I visit Bergen frequently. Don’t hesitate to send me an email if you have something you want to discuss! Welcome back Tor 🙂

Talin Tuestad

Hi everyone! I recently started as a new PhD candidate at the department of Earth Science. I am a Norwegian-Armenian-American from New Jersey (USA) and I did my undergraduate studies in geology at the University of Delaware.  I came to Bergen in 2017 to do my master’s degree in Quaternary geology and paleoclimate at UiB, which I completed in summer 2019. As part of my MSc, I compiled a glacial striation database for the county of Rogaland, which I used to reconstruct the general ice flow patterns in the Boknafjord region, SW Norway, during the last deglaciation. I also applied LiDAR-based geomorphological mapping, field observations and surface exposure dating using in situ Be-10 to investigate the deglaciation history of the Espedalen region in Forsand, just southeast of Boknafjorden.

For my PhD, I will be focusing on quantitative geomorphology, primarily using surface exposure dating with in situ cosmogenic nuclides to determine ages of glacial landforms. My project is under the purview of the interdisciplinary project SOUTHSPHERE (Past behavior of the Southern Ocean’s atmosphere and cryosphere). Under the supervision of Assoc. Prof. Henriette Linge, I will be using in situ Cl-36, Be-10 and C-14 to date rock samples collected from the sub-Antarctic Kerguelen archipelago during a field expedition in Nov/Dec 2019 in order to develop a chronology of paleoglacier extents and fluctuations on the archipelago. I am looking forward to staying in Bergen and to continue working with everyone here! You can find me in room 3148. Welcome to GEO 🙂

Apolline Samin

“Dear all,
Native from the peninsula of Crozon in North West France, I got my Bachelor in Chemistry at the Université de Bretagne Occidentale in Brest and my Master degree in Marine Chemistry at the European Institute of the Sea in Brest as well. During my internships, I had the chance to study the carbonate system in the surface water of the southern ocean with a scientific cruise on the Marion Dufresne (MD211) by being part of the team OISO (Océan Indien Service d’Observation) with Claire Lo Monaco, and then to study the circulation of fluids into Brothers, an arc volcano, using S and Sr isotopes contained in anhydrite, with Dr. Oliver Rouxel at Ifremer (master’s thesis).

After a three months contract as a research assistant at the K.G. Jebsen Centre for Deep Sea Research at UiB, I have started my PhD in geochemistry in the same department in the beginning of January. Under the supervision of Dr. Desiree Roerdink, I will be studying Cu isotope fractionation mechanisms in hydrothermal systems to investigate the formation of copper-rich deposits.

I am a little sportive and very looking forward to discover Bergen and Norway. Please, feel free to come by and say hi. I would be more than happy to meet you :)” You will find Apolline in room 4130a. Welcome to GEO 🙂

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