PhD fellowship : Experimental magmatic geochemistry of sulfur isotopes

Organisation/Company

UNIVERSITE D’ORLEANS

Department

Inst. Sci. de la Terre Orleans (ISTO)

Research Field

Geosciences » Other

Researcher Profile

First Stage Researcher (R1)

Country

France

Application Deadline

5 May 2024 – 00:00 (Europe/Paris)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

38

Offer Starting Date

1 Oct 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Sulfur has four stable isotopes: 32 S, 33 S, 34 S, and 36 S, with 32 S being the most common with 95% abundance. Typically, chemical reactions at high temperature do not differentiate between isotopes. However, fractionation of sulfur isotopes is observed in materials derived from volcanic eruptions, often attributed to fractionation during volcanic degassing. Though the mechanism and extent of this fractionation are not fully understood, several possible explanations exist. The proposed thesis project aims to quantify the fractionation of sulfur isotopes in geological settings related to volcanic eruptions, especially those involving silicic magmatic system. This research is conducted in a laboratory using one-of-a-kind gas mixing furnace system capable of replicating high-temperature magmatic conditions including redox states. The calibrated isotope fractionation values obtained are crucial for interpreting geochemical processes, allowing for quantitative assessments of sulfur budget and transfer inside the Earth. The applications of sulfur isotope geochemistry are diverse, encompassing topics such as Earth formation history, economic ore formation, and the assessment of magma flux beneath active volcanoes.

Requirements

Research Field

Geosciences » Other

Education Level

Master Degree or equivalent

Research Field

Chemistry » Other

Education Level

Master Degree or equivalent

Research Field

Physics » Thermodynamics

Education Level

Master Degree or equivalent

Skills/Qualifications

In addition to master-level education in Earth Sciences (and/or related physical sciences), following backgrounds would be particularly useful in carrying this research: familiarity with thermodynamic and kinetic theories, and ease with computations using widely available scripting languages such as MATLAB, Python, and R, experience. Experience in high temperature material synthesis is valued but not required . Enthusiasm working in experimental petrology lab, and tenacity to seek highest possible data quality are highly appreciated.

Languages

ENGLISH

Level

Excellent

Research Field

Geosciences » Other

Years of Research Experience

None

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

Institute Sciences de la Terre Orléans (ISTO), CNRS-Univ. Orleans

Country

France

State/Province

Centre Val de Loire

City

Orléans

Postal Code

45071

Street

1A rue de la Férollerie

Geofield

Where to apply

E-mail

[email protected]

Contact

City

Orléans

Website

http://www.univ-orleans.fr/
https://www.isto-orleans.fr/en/home/

Street

Château de la Source, Avenue du Parc Floral

Postal Code

45067

E-Mail

[email protected]

STATUS: EXPIRED