Prof. Dr. Gregor Markl
Funktion: Professor
Anschrift:
Universität Tübingen
Petrologie und Mineralische Rohstoffe
Schnarrenbergstraße 94-96
72076 Tübingen
Büro: Raum 5U34, GUZ
+49-(0)7071-29-72930
+49-(0)7071-29-3060
gregor.markl @uni-tuebingen.de
Sprechzeiten:
Nach Vereinbarung
Education
1991-1994 | Study of Mineralogy at the University of Freiburg, Germany; Diploma Thesis: Beryl- and cassiterite-bearing greisens of the Triberg granite massif, Schwarzwald |
1994-1997 | PhD student at the University of Freiburg, Germany; PhD Thesis: Petrology and geochemistry of middle and deep crustal rocks, Lofoten Island, Norway (supervisor: Prof. K. Bucher) |
1997-1999 | Lecturer (C1) at the University of Freiburg; Habilitation for Mineralogy, Petrology and Geochemistry |
1999-2005 | C3-Professor for Petrology of magmatic and metamorphic rocks, Institut für Geowissenschaften, University of Tübingen |
2004 | Vice-president of the Deutsche Mineralogische Gesellschaft (DMG) |
2005-2006 | President of the Deutsche Mineralogische Gesellschaft (DMG) |
since 2005 | W3-Professor (chair) for Petrology, Institut für Geowissenschaften, University of Tübingen |
Honours and awards
2002 | Alfred Krupp von Bohlen und Halbach Award for young university teachers, € 500,000 for 5 years of research |
since 2002 | Member of the Junge Akademie of the Berlin-Brandenburgische Akademie der Wissenschaften and the Leopoldina |
since 2007 | Member of the German Academy of Sciences Leopoldina (Deutsche Akademie der Naturforscher Leopoldina) |
Scholarships
1990-1994 | Member of the 'Studienstiftung des deutschen Volkes' |
Stays abroad
10/1996-12/1996 | Visiting Scientist, Dept. of Geology and Geophysics (R. Frost), Laramie/Wyoming, USA |
01/1997-02/1997 | Visiting Scientist, Dept. of Geology (T. Foster), University of Iowa, USA |
03/1997-06/1997 | Visiting Scientist, Dept. of Earth and Planetary Sciences (J. Ferry), Johns Hopkins University, USA |
1998 and 2000 | Visiting Scientist, Dept. of Earth Sciences (B. Wood), University of Bristol, U.K. |
09/2003-11/2003 | Visiting Scientist, School of Geography and Geosciences (A. Finch), St. Andrews University, U.K. |
12/2003 | Visiting Scientist, Dept. of Earth Sciences (B. Yardley, D. Banks), Leeds University, U.K. |
Field work
1994, 1995, 1997 | Norway (Lofoten Islands, Fongen-Hyllingen, Svartisen nappe, Holsnøy, Sognefjord, Oslorift) |
1995-1996 | German Antarctica expedition GEOMAUD 95/96, Dronning Maud Land |
1998 | Ilimaussaq intrusion, South Greenland |
1999 | Gardar Province, South Greenland |
2000 | Gardar Province, South Greenland |
2001 | Skaergaard intrusion, East Greenland |
2005 | Motzfeld Complex, South Greenland |
Research interests
Petrogenesis of alkaline rocks
- halogen enrichment during fractional crystallization of undersaturated melts
- Radiogenic and stable isotopes as monitors of assimilation prozesses
- relationship of basaltic and alkaline-syenitic intrusives
- identification of important solidus phase equilibria during the fractional crystallization of melts
Halogenes in the continental crust
- fluid-rock interactions and the formation of highly saline brines and of metamorphic salt in the lower crust
- stable Cl isotopic composition of Cl-enriched granulitic rocks from Lofoten, Norway
- halogen enrichment during fractional crystallization of the Ilimaussaq undersaturated syenitic melts, South Greenland
- crystal chemistry of F- and Cl-rich silikates (amphiboles, micas, titanite) and the relationship between mineral and fluid composition in rocks from Norway and Antarctica
- chemical evolution of greisen fluids during the formation of tin mineralizations in the Schwarzwald, Germany
- fluid-rock interactions between greisen fluids and beryl-bearing pegmatites, the formation of gem-quality beryl crystals and of secondary Be silicates
- halogenes as tracers for magmatic or metamorphic fluids in Dronning Maud Land, Antarctica
Petrology of granulitic and eclogitic rocks
- phase equilibria and the documentation of textural evolution in metapelitic, calcsilicate and metabasic rocks from Lofoten, Norway and from Dronning Maud Land, Antarctica
- construction of p-T paths and of a tectonometamorphic history
Thermodynamic modelling of mineral textures in granulites
- estimation of Onsager diffusion coefficients in granulite-facies rocks from Lofoten, Norway
- application of irreversible thermodynamics for modelling of olivine- and magnetite coronas in charnockites
- investgations concerning mass transport during corona formation (open system vs. closed system behaviour)
Phase relations, geochemistry and a petrogenetic model for the formation and evolution of anorthosites, related rocks and other magmatites crystallized at low water activity
- phase equilibria among olivine, pyroxenes, Fe-Ti oxides (QUIlF phases) and plagioclase
- p-T evolution of anorthosites during intrusion
- geochemical evolution of anorthositic parental melts from high-Al gabbros to ferrodiorites
- fractionation and estimates of crustal contamination with radiogenic isotopes during the evolution of ferrodiorites to mangerites and charnockites
- calculation of anorthositic parental melts with distribution coefficients according to the Blundy & Wood (1994) model
- a petrogenetic model for the formation of anorthosites and related rocks
- crystallization history of the augite syenite, the foyaite, the lujavriote and the naujaite in the Ilimaussaq intrusion, South Greenland
Geochemistry of hydrothermal ore deposits
- ore petrology and associations of hydrothermal Fe-Mn, U-Bi-Co-Ni-Ag, Ag-Sb and Ag-Bi deposits