Associate Professor Margaret (Marnie) Forster

BSc, MSc I, PhD Monash University
Academic Manager Argon Laboratory
ANU College of Science

Areas of expertise

  • Geochronology 040303
  • Mineralogy And Crystallography 040306
  • Structural Geology 040312
  • Tectonics 040313

Research interests

Argon Geochronology @

Determining when and how movement in the ductile zone of the Earth occur. Dating deformation and metamorphic events that occur at major zones of collision or extension during Earth's history.  Dating deformation and movement zones using Ar/Ar geochronology within the framework of structural geology and microstructure.

Thermal histories and evolution of metamorphic and igneous terranes using structural geology inconjuction with temperature/time histories of specific zones.

Temperature+time histories of alteration zones and fault zones. 

Present arenas: Australian lithosphere, SE Asia (Palawan, Sulawesi, Borneo, Java); NW Himalaya (Tso Morari, Ladakh, Rhotang); Greece (Aegean: Evia, Sifnos, Ios, Syros); European Alps, north America continent.


Associate Professor
ANU Argon Facility @

Research School of Earth Sciences,
The Australian National University

Telephone: +61 2 6125 3412


Ph.D.  Earth Sciences, Monash University, May 2003
M.Sc.  Level I (Hons. HI Equivalent) Monash University, 1996
B.Sc.  Earth Sciences, Monash University, 1994

Relevant Employment History

2019-present MinEx CRC researcher
@The Australian National University node

2018-present.  Project Director of The National Argon Map   
                       AuScope and ANU

2013-present   Argon Laboratory Academic in charge,
                      The Australian National University

2008-2013       ARC Australian Research Fellow,
                       The Australian National University

2004-2008       ARC Australian Post-Doctoral Fellow
                       Structure & Tectonics/Argon Geochronology
                       The Australian National University

2003-2004       Research Fellow, Structure and Tectonics
                      The Australian National University

2002-2003       Research Fellow, Argon Geoochronology,
                       University of Melbourne


Current student projects

Sonia YeungPhD Candidate (Chair-supervisor)

Started 2021

Nipaporn NakrongPhD Candidate (Chair-supervisor)

Started 2020


Past student projects

Recent past students:

Jack MustonMaster of Philosophy (co-supersvisor)
2D + time reconstruction of Sumatra
Completed 2019

Ruoran NieMaster of Earth Sciences (Advanced) Candidate
The exhumation of Eclogite-Blueschist belot on Ios, Greece.
Completed 2019

Ho Sonia YeungMaster of Earth Sciences (Advanced) Candidate
Timing of Central Aegean tectonic events during Tethys Ocian Closure.
Completed 2019

Qianhui ZhouMaster of Earth Sciences (Advanced) Candidate, Co-supervisor
40Ar/39Ar geochronological used to Time Fabric and Miscrostructure Development. Tectonic Evolution of the Greenschist Facies Slice on Sifnos, Cyclades, Greece.
Completed 2019

Sareh RajabiPhD Candidate
Structural and 40Ar/39Ar geochronological study of in the NW Himalaya.
Completed 2018

Lin Shi, Master Earth Sciences (Advanced) Candidate
The timing and character of the structures and lateration at Mt Elliott, in the Eastern Mt Isa Inlier: 40Ar/39Ar geochronological and T-t path modeling
Completed 2017

Oleg Koudashev, PhD Candidate
Structural and 40Ar/39Ar geochronological study of  copper and gold porphyry and epithermal system of the Yandera Exploration region, P.N.G.
Completed 2016

Musri Mawelda, PhD candidate (ITB, Indonesia, Prof Suparka chair supervisor)
Structure and tectonics of the Rumbala Complex, SE Sulawesi
Completed 2016

Jia-Urnn Lee, PhD candidate
Structure and timing of the Phojal Fold in NW Himalaya
Completed Dec 2013




Projects and Grants

Grants information is drawn from ARIES. To add or update Projects or Grants information please contact your College Research Office.

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Updated:  21 April 2024 / Responsible Officer:  Director (Research Services Division) / Page Contact:  Researchers