Mgr. Jiří Žák

Phone: +420 221951475  Office: P16 D
E-mail: jirizak (zavináč) natur.cuni (tečka) cz
Personal web: http://www.natur.cuni.cz/~jirizak

Professional Experience

Education

Research Interests

• Pluton emplacement mechanisms
• Physical processes in magma chambers
• Interpretation of fabric patterns in plutons
• Anisotropy of magnetic susceptibility (AMS) of magmatic rocks
• Brittle tectonics

Teaching

• Map interpretation
• Granites: magmatic processes and emplacement mechanisms
• Introduction to Geology

Current Research Activities

• Emplacement, fabric patterns and structural evolution of the Central Bohemian Plutonic Complex
• Relationship between magmatic fabrics and fracture networks in the Krkonoše-Jizera pluton, Bohemian Massif
• Emplacement processes and geodynamic setting of durbachitic plutons in the Moldanubian Zone, Bohemian Massif
• Magmatic processes, fabrics and emplacement mechanisms in the Tuolumne Batholith, central Sierra Nevada, California, USA

Professional Affiliations

Selected Publications

Žák J., Paterson S.R. (2005): Internal contacts in Tuolumne Batholith, central Sierra Nevada, California (USA): implications for episodic emplacement, rheology and physical processes in a continental arc magma chamber. - Geological Society of America Bulletin, accepted.

Žák J., Holub F., Verner K. (2005): Tectonic evolution of a continental magmatic arc recorded by multiple episodically emplaced magma pulses: the Central Bohemian Plutonic Complex (Bohemian Massif, Czech Republic). - International Journal of Earth Sciences, accepted.

Žák J., Schulmann K., Hrouda F. (2005): Multiple magmatic fabrics in the Sázava Pluton (Bohemian Massif, Czech Republic): a result of superposition of wrench-dominated regional transpression on final emplacement. - Journal of Structural Geology, accepted.

Paterson S.R., Onezime J., Teruya L., Žák J. (2003): Quadruple-pronged enclaves: their significance for the interpretation of multiple magmatic fabrics in plutons. - Journal of the Virtual Explorer, Vol. 10.

Žák J., Paterson S.R.: The significance of four magmatic foliations in a single batholith: An example from the Tuolumne Batholith, central Sierra Nevada, California (USA). - Geological Society of America Bulletin, in review.

Paterson S.R., Vernon R.H., Žák J.: Mechanical instabilities and physical accumulation of K-feldspar megacrysts in granitic magma, Tuolumne Batholith, California, USA. - Journal of the Virtual Explorer, in review.

Paterson S.R., Okaya D., Žák J. (2003): Thermal histories of episodically constructed, large volume magma chambers: implications for processes along internal contacts. - Geological Society of America, Abstracts with programs, Vol. 34/ 7, p. 93.

Žák J., Hrouda F. (2001): Magnetic fabric measured and modelled in coexisting mafic and tonalitic in transpressive regime.- Geophysical Research Abstracts, Vol. 3.