XRF core scanning for paleoclimate reconstructions in the Arctic

June 28, 2021 – June 30, 2021 all-day
Linken, Forskningsparken & the Geoscience laboratory at UiT, Tromsø

Organizers: Christine Tømmervik Kollsgård (UiT), Carmen Avery Braun (UiT), Vårin Trælvik Eilertsen (UiT), Eirik Gottschalk Ballo (UiO) and Violeth Swai (UiB)
Confirmed speakers: Eivind Wilhelm Nagel Støren (UiB), Jostein Bakke (UiB), Christian März (University of Leeds), Rik Tjallingii (Divison for Climate Dynamics and Landscape Evolution, GFZ Potsdam), Marit-Solveig Seidenkrantz (Aarhus University), Karina Monsen (UiT) and Christoph Vogt (University of Bremen).
Number of participants: 15
Credit points: 1 ECTS

Registration form here. (Deadline: 30 April)

*CHESS will cover the travel and accommodation costs for CHESS members to participate in this course. The information about making travel claim after the activity can be found on our webpage Travel reimbursement for participating in CHESS activities. *

This coming summer, in late June, a group of early career researchers have invited a hand-full of speakers to facilitate a more in-depth understanding of the theory behind XRF (X-ray fluorescence) data. We are organizing a workshop over three days in Tromsø – and invite you to join us.

The main aim of the workshop is to have a meeting amongst PhD-students and professors working with XRF-data and the interpretation of it, to gain a broader understanding of its possibilities. In addition, we see it useful to develop a network of both PhDs and supervisors working with XRF-data as a means of reconstructing paleoclimate in the Arctic to gain a common understanding of its meaning.

Description of the course

The course will focus on the use of XRF data to reconstruct past climate and environments. XRF core scanning is one of the most common and important high-resolution methods to investigate past conditions in both marine and lacustrine sediments. The geochemical element ratios obtained can give insight into environmental and climatic changes and can be tied to other paleo-climate proxies.

Participants will learn the necessary theory on the data collection methods of the Avaatech XRF Scanner at the UiT laboratory and the iTraxx at UiB. Post-scanning data processing will be adressed through lectures and hands-on experience with data analysis and interpretation, including the use of Xelerate conversion software. Lectures will also introduce the different processes and pre- and post-depositional factors influencing the sediment geochemistry and how these are portrayed in the XRF data. Further, students get to learn which element-ratios can be used for reconstructing paleoclimate in any environment, with a specific focus on the Arctic and glacial environments.

Before the workshop, there will be a limited amount of assigned literature and participants should prepare a short introductory presentation. Please bring with you your own XRF-dataset to work on. You will be asked to sort it in a specific way prior to the workshop. If you do not yet have data, a dataset will be provided. At the end of the course, you will present your conclusions to the group.

Outcomes and benefits:
The students will:
• Be introduced to the Avaatech X-Ray Fluorescence Scanner
• Learn how to process XRF core scanner data
• Get in-depth knowledge of how changes in climate are reflected in XRF data
• Learn to interpret their own datasets and practice presenting their work for others
• Gain a broader network within the paleoclimate community

Pre-requisites: Participants should be currently working with XRF data, or will be as parts of their PhD project.