Installation of Hyperion RF Plasma source (05.04.2019)

The installation of the new Hyperion II RF Plasma source has started this week. This source will be used to create dense and stable O- or O2- primary ion beam. It replaces the “classical” duoplasmatron source.

The denser primary beam created will allow doing small spot analysis, with similar – even higher – secondary count rates on the selected elements to be analyzed. The largely improved stability and source lifetime are also major benefits for the analytical sessions.

Installation, made by CAMECA, is scheduled to be done by April 19th, followed by several weeks of development and tests.


SwissSIMS workshop – UNIL – June 6th

Where: Geopolis building, room 1628 (ground floor)


Scientific program

9:15 – 9:30                Welcome coffee

9:30 – 9:40                Introduction

9:40 – 10:00              Carolin Fichtner (ETHZ) 

The origin and inventory of Earth’s carbon content as revealed by SIMS

10:00 – 10:20            Joshua Davis (UNIGE)

Investigating crustal contamination as a source of volatiles for CAMP magmatism: a zircon perspective

10:20 – 10:40            Juliana Troch (ETHZ)

The dark side of zircon: Evidence for fluid saturation in the subvolcanic reservoir of the Mount Jackson-Island Park Rhyolite series in Yellowstone (USA)

10:40 – 11:00            Coffee break

11:00 – 11:20            Emmanuelle Ricchi (UNIGE)

Age and crystallization duration of fissure monazite-(Ce): linking ion probe Th-U-Pb results with hydrothermal dissolution/precipitation events and deformation stages

11:20 – 11:40            Jonas Pape (UNIBE)

26Al-26Mg SIMS dating of chondrules: a window to the early solar system

11:40 – 12:00            Etienne Deloule (CRPG, Nancy)

Development of Sr isotopes measurements by SIMS

12:00 – 14:00            Lunch break

14:00 – 14:20            Alice Vho (UNIBE)

Garnet oxygen isotope analysis by SIMS: Matrix corrections and applications

14:20 – 14:40            Katharina Marger (UNIL)

Development of tourmaline reference material for in-situ isotope analyses by SIMS with application to Monte Rosa whiteschist

14:40 – 15:00            Matthieu Harlaux (UNIGE)

Tracing magmatic-hydrothermal transition processes at the world-class San Rafael tin deposit (Peru) by in situ oxygen isotope and trace element analyses of tourmaline

15:00 – 15:20            Coffee break

15:20 – 15:40            Florian Bulle (UNIBE)

SIMS oxygen isotope study of white mica in a complex magmatic-hydrothermal environment

15:40 – 16:00            Lukas Baumgartner (UNIL)

Tracing fluid flow and time scale in quartz using SIMS

16:00 – 16:20            Elias Bloch (UNIL)

Diffusion kinetic parameters of calcium in olivine retrieved via SIMS depth profiling

16:20 – 16:30            Conclusion

Open PhD position

Open PhD position in Geochemistry at Institute of Earth Sciences, University of Lausanne


We have an opening for a PhD student in the domain of chemical and physical processes affecting the composition recorded in melt inclusions in MORB and OIB. This work implies a large amount of secondary ion mass spectrometer (SIMS), and other in-situ techniques like FEG-EMPA, and LA-ICP-MS. The candidate is expected to develop and apply analytical protocols, and to interpret the data using spatial modelling.

This study is of particular importance as melt inclusions compositions are used to infer melting processes, conditions of melt extraction, degassing and mantle source chemical characterization. All post-entrapment processes have then to be considered to interpret the data.


We seek a highly motivated candidate with keen interest in volcanic processes, and small scale processes. Analytical skills or a keen interest to learn them is required, as well as an interest to develop quantitative models. Experience with melt inclusions and/or SIMS is beneficial. Good English skills and ability to work independently are essential. A Master’s degree or equivalent in Earth Sciences at the time of the appointment is required.

Further particulars

The initial appointment will be for a period of 1 year. After satisfactory evaluation of the initial appointment can be extended to a maximum duration of 4 years. The position starts during fall 2018 and will be paid according to Swiss standards for PhD fellowships. University of Lausanne is committed to promoting gender equality.


Applications should include a letter of motivation, summary of MSc thesis work, CV and the names of three referees. All these documents, combined in one PDF file, should be sent to Anne-Sophie Bouvier ( Review of applications will start May 15th. The position will remain open until filled.

new paper online (11.10.17)

Reconstruction of multiple P-T-t stages from retrogressed mafic rocks: Subduction versus collision in the Southern Brasília orogen (SE Brazil)

Tedeschi M., Lanari P., Pedrosa-Soares A., Rubatto D., Hermann J., Dussin I., Pinheiro M.A.P, Bouvier A.-S., Baumgartner L.P.


Job opening: Assistant Professor in low temperature geochemistry

The Faculty of Geoscience and the Environment of the University of Lausanne wishes to fill the post of Assistant Professor, full-time with tenure track, in low temperature geochemistry within its Institute of Earth Sciences.

This post is aimed at a researcher in natural sciences within the field of Earth Sciences. The Faculty wishes to prioritise the engagement of an academic scientist, working in the field of low temperature geochemistry, and with interest in the use of in situ microanalysis. In order to support the development of our national experimental facility SwissSIMS, leadership of UNIL’s secondary ion microprobe facility is expected in due course.

Application deadline: 24th November 2017 (23:59 Swiss time GMT +1)

Full job description and application here.

new paper online

“Weekly to monthly time scale of melt inclusion entrapment prior
to eruption recorded by phosphorus distribution in olivine from
mid-ocean ridges”

by M. Manzini, A.-S. Bouvier, L.P. Baumgartner, O. Müntener, E.F. Rose-Koga, P. Schiano, S. Escrig, A. Meibom, N. Shimizu,

Geology, doi:10.1130/G39463.1

2 GSA abstracts

Möller A., Premo W.R., Baumgartner L.P., Siron G., Kooijman E., Kelly N.  (2017) Paleoproterozoic crustal growth in the central US: Hf and oxygen isotope evidence from magmatic zircon in the Yavapai province of North-Central Colorado. GSA abstracts

Dutrow B., Marger K., Putlitz B., Henry D.J., Baumgartner L.P., Siron G., Bouvier A-S. (2017) In-situ oxygen isotope study of tourmaline and quartz: insights into the prograde temperature history. GSA abstracts

6 Goldschmidt abstracts

Baumgartner L.P., Bégué F., Siron G., Luisier C., Marger K., Bouvier A.-S. (2017) Using Secondary Ion Mass Spectrometry to decipher fluid-rock interaction, Goldschmidt abstract 2017

Bloch E., Baumgartner L.P., Putlitz B., Bouvier A.-S. (2017), Late-stage fluid infiltration in the Zermatt-Saas ophiolite zone, Goldschmidt abstract 2017

Higashino F., Rubatto D., Kawakami T., Bouvier A.-S. (2017) Oxygen isotope zoning in garnet from granulite facies rocks, Goldschmidt abstract 2017

Luisier C., Baumgartner L.P., Bouvier A.-S., Siron G., Vaughan-Hammon J., Schmalholz S. (2017), Importance of relative water fugacity estimates in meta-granites and white schists from SIMS measurements of water content in phengite, Goldschmidt abstract 2017

O’ Farrell, D.J. Tomlinson E.L., Caufield J.T., Bouvier A.-S., Stuart F. M. (2017) Halogen Composition of the Proto-Iceland Plume Source Mantle, Goldschmidt abstract 2017

Siron G., Baumgartner L.P., Bodner R., Bouvier A.-S., Putlitz B. (2017), Chlorine content in biotite as tracer of fluid-rock interaction during contact metamorphism, Goldschmidt abstract 2017


2 new papers (03.01.2017)

McCarthy A., Müntener O., Bouvier A.-S., Baumgartner L.P. (2016) “Melt Extraction Zones in Shallow Arc Plutons: Insights from Fisher Lake Orbicules and Comb Layers, Northern Sierra Nevada”, submitted to Journal of Petrology 57 (10), 2011-2052, doi: 10.1093/petrology/egw068


Didier A., Putlitz B., Baumgartner L.P., Bouvier A.-S., Vennemann T. (in press) Evaluation of potential monazite reference materials for oxygen isotope analyses by SIMS and laser assisted fluorination, Chemical Geology, doi: 10.1016/j.chemgeo.2016.12.031