Magmatic and Ore-Forming Processes Research Laboratory

Publications

 

In Press/In Revision

Dolejs D. and Zajacz Z. (2015) Halogens in silicic magmas and their hydrothermal systems. In: The Role of Halogens in Terrestial and Extraterrestial Geochemical Processes: Surface, Crust and Mantle. Ed: Dan Harlov, Spriner Verlag, Berlin – in revision – Invited contribution

Brenan, J.M., Bennett, N.R., Zajacz Z. (2015) Experimental results on fractionation of the highly siderophile elements (HSE) at variable pressures and temperatures during planetary and magmatic differentiation. Reviews in Mineralogy and Geochemistry, accepted for publication – Invited contribution

Liptai N., Patkó L., Kovács I.J., Pintér Zs., Hidas K.,Tommasi A., Jeffries T., Zajacz Z., Falus Gy., Szabó C. (2015) The upper mantle beneath the Nógrád-Gömör Volcanic Field (Northern Hungary – Southern Slovakia) – an integrated study on spinel lherzolite xenoliths, Journal of Petrology, in revision

 

Published:

Zajacz Z. (2015) The effect of silicate melt composition on the volatile/melt partitioning of oxidized sulfur. Geochimica et Cosmochimica Acta, 158, 223-244.

Guzmics, T., Zajacz Z., Szabo C., Mitchell R.H., Walle, M. (2015) The role of liquid–liquid immiscibility and crystal fractionation in the genesis of carbonatite magmas: insights from Kerimasi melt inclusions, Contributions to Mineralogy and Petrology, 167:17

Tsay, A., Zajacz, Z., Sanchez-Valle, C. (2014) Efficient mobilization and fractionation of rare-earth elements by aqueous fluids upon slab dehydration. Earth and Planetary Science Letters, 398, 101-112.

Stefanova, E., Driesner, T., Zajacz, Z., Heinrich, C.A., Petrov, P., Vasilev, Z., (2014). Melt and Fluid Inclusions in Hydrothermal Veins: The Magmatic to Hydrothermal Evolution of the Elatsite Porphyry Cu-Au Deposit, Bulgaria. Economic Geology, 109, 1359-1381.

Zajacz Z., Candela P.A., Piccoli P.M., Sanchez-Valle C. and Wälle M. (2013) Solubility and partitioning behavior of Au, Cu, Ag and reduced S in magmas. Geochimica et Cosmochimica Acta, 112, 288-304.

Zajacz Z., Candela P.A., Piccoli P.M., Wälle M. and Sanchez-Valle C. (2012) Gold and copper in volatile saturated mafic to intermediate magmas: solubilities, partitioning, and implications for ore deposit formation. Geochimica et Cosmochimica Acta, 91, 140-159.

Zajacz Z., Candela P.A., Piccoli P.M. and Sanchez-Valle C. (2012) The partitioning of sulfur and chlorine between andesite melts and magmatic volatiles and the exchange coefficients of major cations. Geochimica et Cosmochimica Acta, 89, 81-101.

Zajacz Z., Seo J.H., Candela P.A., Piccoli P.M., Tossel J.A. (2011) The solubility of copper in high-temperature magmatic vapors: a quest for the significance of various chloride and sulfide complexes. Geochimica et Cosmochimica Acta, 75, 2811-2827.

Seo J.H., Guillong M., Aaerts M., Zajacz Z., Heinrich C.A. (2011) Microanalysis of S, Cl, and Br in fluid inclusions by LA-ICP-MS. Chemical Geology, 284, 35-44.

Zajacz Z., Seo J.H., Candela P.A., Piccoli P.M., Heinrich C.H., Guillong M. (2010) Alkali metals control the release of gold from volatile-rich magmas. Earth and Planetary Science Letters, 297, 50-56.

Hidas K., Guzmics T., Szabó Cs., Kovács I., Bodnar R.J., Zajacz Z., Nédli ZS., Vaccari L., Perucchi A. (2010) Coexisting silicate melt inclusions and H2O-bearing, CO2-rich fluid inclusions in mantle peridotite xenoliths from the Carpathian-Pannonian region (central Hungary) Chemical Geology, 274, 1-18.

Marchev P., Georgiev S., Zajacz Z., Manetti P., Raicheva R., Quadt A., Tommasini S. (2009) High-K ankaramitic melt inclusions and lavas in the Upper Cretaceous Eastern Srednogorie continental arc, Bulgaria: Implications for the genesis of arc shoshonites. Lithos, 113, 228-245.

Zajacz Z., Halter WE. (2009) Copper transport by high temperature, sulfur-rich magmatic vapor: Evidence from silicate melt and vapor inclusions in a basaltic andesite from the Villarrica volcano (Chile). Earth and Planetary Science Letters, 282, 115-121.

Szabo C., Hidas K., Bali E., Zajacz Z., Kovacs I., Yang K., Guzmics T., Torok K. (2009) Melt-wall rock interaction in the mantle shown by silicate melt inclusions in peridotite xenoliths from the central Pannonian Basin (western Hungary). Island Arc, 18, 375-400.

Zajacz Z., Hanley J., Heinrich C., Halter WE. And Guillong M. (2009) Diffusive reequilibration of quartz-hosted silicate melt and fluid inclusions: Are all metal concentrations unmodified? Geochimica et Cosmochimica Acta, 73, 3013-3027.

Zajacz Z., Halter WE., Pettke T., Guillong M. (2008) Determination of fluid/melt partition coefficients by LA-ICPMS analysis of co-existing fluid- and silicate melt inclusions: Controls on element partitioning. Geochimica et Cosmochimica Acta, 72, 2169-2197.

Guzmics T., Zajacz Z., Kodolanyi J., Halter WE., Szabó C. (2008) LA-ICP-MS study of apatite- and K feldspar-hosted primary carbonatite melt inclusions in clinopyroxenite xenoliths from lamprophyres, Hungary: Implications for significance of carbonatite melts in the Earth’s mantle. Geochimica et Cosmochimica Acta, 72,1864-1886.

Bali E., Zajacz Z., Kovács I., Halter WE., Szabó Cs., Vaselli O., Török K., Bodnar R.J. (2008)  A quartz-bearing orthopyroxene-rich websterite xenolith from the Pannonian Basin, Western Hungary: evidence for release of quartz-saturated melts from a subducted slab. Journal of Petrology, 49, 421-439.

Beaudoin Y., Scott SD., Gorton MP., Zajacz Z., Halter WE. (2007) Effects of hydrothermal alteration on Pb in the active pacmanus hydrothermal field, ODP leg 193, manus basin, papua new guinea: A LA-ICP-MS study. Geochimica et Cosmochimica Acta, 71, 4256-4278.

Beaudoin Y., Scott SD., Gorton MP., Zajacz Z., Halter WE. (2007) Pb and other ore metals in modern seafloor tectonic environments: evidence from melt inclusions. Marine Geology, 242, 271-289.

Zajacz Z., Kovács I., Szabó C., Halter WE., Pettke T. (2007) Evolution of mafic alkaline melts crystallized in the uppermost lithospheric mantle: a melt inclusion study of olivine-clinopyroxenite xenoliths, northern Hungary. Journal of Petrology, 48, 853-883.

Kovács I., Csontos L., Szabó Cs., Falus Gy., Bali E., Benedek K., Zajacz Z. (2007) Paleogene igneous rocks and geodynamics of the wider Carpathian-Pannonian Region: an integrated approach. Geological Society of America Special Paper 418, 93-112, doi: 10.1130/2007.2418(05)

Zajacz Z. and Halter WE. (2007) LA-ICPMS analyses of silicate melt inclusions in co-precipitated minerals: quantification, data analysis and mineral/melt partitioning. Geochimica et Cosmochimica Acta, 71, 1021-1040.

Falus Gy., Szabó C., Kovács I., Zajacz Z., Halter WE. (2007) Symplectite in spinel lherzolite xenoliths from the Little Hungarian Plain, Western Hungary: a key for understanding basin evolution. Lithos, 94, 230-247.

Zajacz Z., Halter WE., Malfait W.J., Bachmann O., Bodnar R.J., Hirschmann M.M., Mandeville C.W., Morizet Y., Muntener O., Ulmer P., Webster J.D. (2005) A composition-independent quantitative determination of the water content in silicate glasses and silicate melt inclusions by confocal Raman spectroscopy. Contributions to Mineralogy and Petrology, 150, 631-642.

Kovács I., Zajacz Z., Szabó C. (2004) Type-II xenoliths and related metasomatism from the Nograd-Gomor Volcanic Field, Carpathian-Pannonian region (northern Hungary-southern Slovakia). Tectonophysics 393, 139-161.

Szabó C., Falus G., Zajacz Z., Kovács I., Bali E. (2004) Composition and evolution of lithosphere beneath the Carpathian-Pannonian Region: a review. Tectonophysics, 393, 119-137.

Zajacz Z., Szabó C. (2003) Origin of sulfide inclusions in cumulate xenoliths from Nograd-Gomor Volcanic Field, Pannonian Basin (north Hungary/south Slovakia). Chemical Geology, 194, 105-117.