mineral resources; geochemistry; magmatic hydrothermal systems; laser-ablation; ICPMS; fluid inclusions; LA-MC-ICPMS; hydrodynamics; finite-element simulation; isotope analysis; geochronology; Romania; Bulgaria; Serbia; SCOPES
Von Quadt A., Serafimovski T., Peytcheva I., Cvetkovic V. (2013), Diversity of copper and gold deposits in the Eastern Europe Balkan, Carpathian and Rhodopean belts: tectonic, magmatic and geochronological investigations, in Edited Abstract Volume and Field Guide, ETH Zurich
, ZürichEdited Abstract Volume and Field Guide, ETH Zurich, Zürich.
Barcikowski J., Lehmann S. (2013), Magmatic evolution of the Buchim - Damjan - Borov Dol ore district, Macedonia
, ETH, Zürich.
Seo Jung Hun, Heinrich Christoph A. (2013), Selective copper diffusion into quartz-hosted vapor inclusions: Evidence from other host minerals, driving forces, and consequences for Cu-Au ore formation, in Geochimica Et Cosmochimica Acta
, 113, 60-69.
Naydenov Kalin, Peytcheva Irena, von Quadt Albrecht, Sarov Stoyan, Kolcheva Krastina, Dimov Dimo (2013), The Maritsa strike-slip shear zone between Kostenets and Krichim towns, South Bulgaria — Structural, petrographic and isotope geochronology study, in Tectonophysics
, 595-596, 69-89.
Kaiser Rohrmeier M., von Quadt A., Driesner T., Heinrich C. A., Handler R., Ovtcharova M., Ivanov Z., Petrov P., Sarov St., Peytcheva I. (2013), Post-Orogenic Extension and Hydrothermal Ore Formation: High-Precision Geochronology of the Central Rhodopian Metamorphic Core Complex (Bulgaria-Greece), in Economic Geology
, 108(4), 691-718.
Steinberger I., Hinks D., Driesner T., Heinrich C.A. (2013), Source Plutons Driving Porphyry Copper Ore Formation: Combining Geomagnetic Data, Thermal Constraints, and Chemical Mass Balance to Quantify the Magma Chamber Beneath the Bingham Canyon Deposit, in Economic Geology
, 108(4), 605-624.
Harris Caroline R., Pettke T., Heinrich C. A., Rosu E., Woodland S., Fry B. (2013), Tethyan mantle metasomatism creates subduction geochemical signatures in non-arc Cu-Au-Te mineralizing magmas, Apuseni Mountains (Romania), in Earth and Planetary Science Letters
, 366, 122-136.
Kolb M., Von Quadt A., Peytcheva I., Heinrich C. A., Fowler S. J., Cvetkovic V. (2013), Adakite-like and Normal Arc Magmas: Distinct Fractionation Paths in the East Serbian Segment of the Balkan-Carpathian Arc, in Journal of Petrology
, 54(3), 421-451.
Fusswinkel T., Wagner T., Wenzel T., Walle M., Lorenz J. (2013), Evolution of unconformity-related Mn - Fe - As vein mineralization, Sailauf (Germany): Insight from major and trace elements in oxide and carbonate minerals, in Ore Geology Reviews
, 50, 28-51.
Kulik D. A., Wagner T., Dmytrieva S. V., Kosakowski G., Hingerl F. F., Chudnenko K. V., Berner U. R. (2013), GEM-Selektor geochemical modeling package: revised algorithm and GEMS3K numerical kernel for coupled simulation codes, in Computational Geosciences
, 17(1), 1-24.
Weis P., Driesner T., Heinrich C. A. (2012), Porphyry-copper ore shells form at stable pressure-temperature fronts within dynamic fluid plumes, in Science
, 338(6114), 1613-1616.
Schlegel T. U., Walle M., Steele-MacInnis M., Heinrich C. A. (2012), Accurate and precise quantification of major and trace element compositions of calcic-sodic fluid inclusions by combined microthermometry and LA-ICPMS analysis, in Chemical Geology
, 334, 144-153.
Gruen G., Weis P., Driesner T., de Ronde C. E. J., Heinrich C. A. (2012), Fluid-Flow Patterns at Brothers Volcano, Southern Kermadec Arc: Insights from Geologically Constrained Numerical Simulations, in Economic Geology
, 107(8), 1595-1611.
Steinberger I. (2012), Quantitative constraints for the Bingham Canyon ore-forming system, Diss ETH No. 20433, ETH Zurich
, ETH, Zurich.
Georgiev S., von Quadt A., Heinrich C. A., Peytcheva I., Marchev P. (2012), Time evolution of a rifted continental arc: Integrated ID-TIMS and LA-ICPMS study of magmatic zircons from the Eastern Srednogorie, Bulgaria, in Lithos
, 154, 53-67.
Wagner T., Kulik D. A., Hingerl F. F., Dmytrieva S. V. (2012), GEM-SELEKTOR Geochemical Modeling Package: TSolMod library and data interface for multicomponent phase models, in Canadian Mineralogist
, 50(5), 1173-1195.
Zajacz Z., Candela P. A., Piccoli P. M., Walle M., Sanchez-Valle C. (2012), Gold and copper in volatile saturated mafic to intermediate magmas: Solubilities, partitioning, and implications for ore deposit formation, in Geochimica Et Cosmochimica Acta
, 91, 140-159.
Kounov A., Graf J., von Quadt A., Bernoulli D., Burg J. P., Seward D., Ivanov Z., Fanning M. (2012), Evidence for a "Cadomian" ophiolite and magmatic-arc complex in SW Bulgaria, in Precambrian Research
, 212, 275-295.
Seo J. H., Guillong M., Heinrich C. A. (2012), Separation of Molybdenum and Copper in Porphyry Deposits: The Roles of Sulfur, Redox, and pH in Ore Mineral Deposition at Bingham Canyon, in Economic Geology
, 107(2), 333-356.
Kolb M. (2011), Geochronology and isotope geochemistry of magmatic rocks from Western Srednogorie (Bulgaria) and Timok Magmatic Complex (East Serbia), Diss ETH No. 20033, ETH Zurich
, ETH, Zürich.
Seo J.H. (2011), Sulfur and halogen analysis of fluid inclusions in magmatic-hydrothermal ore deposits, Diss ETH No. 19921, ETH Zurich
, ETH, Zürich.
Peytcheva I., Von Quadt A., Dyulgerov M., Nedialkov R. (2011), Age and source constraints on granitoid magmatism hosting Au-Ag +/- W mineralization at Lutztkan and Ruy plutons, Bulgaria, in Proceedings of the 11th SGA Biennial Meeting
, Antofagasta, Chile.
Heinrich C. A., Meier D., Erni M., Von Quadt A., Peytcheva I., Márquez-Zavalia F. (2011), Life-times and scales of Cu-Au-mineralizing magmatic-hydrothermal processes: Farallón Negro (Argentina), in Proceedings of the 11th SGA Biennial Meeting
, Antofagasta, Chile.
von Quadt A., Erni M., Martinek K., Moll M., Peytcheva I., Heinrich C. A. (2011), Zircon crystallization and the lifetimes of ore-forming magmatic-hydrothermal systems, in Geology
, 39(8), 731-734.
Zajacz Z., Seo J. H., Candela P. A., Piccoli P. M., Tossell J. A. (2011), The solubility of copper in high-temperature magmatic vapors: A quest for the significance of various chloride and sulfide complexes, in Geochimica Et Cosmochimica Acta
, 75(10), 2811-2827.
Seo J. H., Guillong M., Aerts M., Zajacz Z., Heinrich C. A. (2011), Microanalysis of S, Cl, and Br in fluid inclusions by LA-ICP-MS, in Chemical Geology
, 284(1-2), 35-44.
Many important ore deposits are formed by hydrothermal fluids circulating through magmatic systems on land or beneath the ocean floor. Our group investigates the geological processes leading to this metal enrichment, as a long-term basis for predicting the location and composition of still undiscovered resources. Hydrothermal fluids are also the main agent of heat transfer in active geothermal systems, affecting ocean composition and being explored as a new energy source. To investigate these coupled physical and chemical processes, we are combining four lines of research: integrated field and lab observations in specific ore systems; micro-analytical lab development to characterise the composition and phase state of fluid inclusions; numerical modeling to quantify the interaction of complex fluids with magmas and rocks, and igneous geochemistry and geochronology to understand the province-scale geodynamic processes giving rise to magmatic-hydrothermal ore systems. This proposal is a follow-up to allow completion of three far-advanced PhD projects, and seeks to initiate two new PhD students and a Postdoctoral fellow, to allow a handshake of expertise linking these four lines of research.A. Micro-analytical technique development: Anion analysis in single fluid inclusions Jung Hun Seo’s PhD project extended his technical breakthrough with S analysis to other anions in fluid inclusions (Br, Cl). He requires a small extension to apply combined anion and ore-metal analysis to the late vein generations in the Bingham Canyon Cu-Mo-Au deposit. This work addresses the general question why Mo-rich veins commonly form later than Cu-Au veinlets in evolving porphyry deposits. He is also testing whether the post-ore quartz-sericite-pyrite veins contain Au-S-rich fluids, as predicted from earlier studies when we were still unable to analyse for sulphur.B. Numerical modeling of two-phase fluid flow in magmatic-hydrothermal systemsPostdoc Philipp Weis has cracked earlier problems with our finite-element code CSMP++, to model two-phase flow of salty fluids in combination with internal fluid sources. He is computing generic applications of the interaction of magmatic fluids with meteoric or seawater, to investigate the hydrology and thermal structure of magmatic-hydrothermal systems, including porphyry-type ore deposits and active arc volcanoes. We request funding for a collaboration with IPG Paris, to apply our unique modeling capabilities to the Lucky Strike hydrothermal system on the Mid-Atlantic Ridge. Recent geophysical data by IPGP, and an international seafloor observatory currently being installed provide the geometric constraints on the subjacent magma chamber and tectonic structures, as well as the timescales of hydrological changes as recorded by black smokers and diffuse venting. These data will allow the first realistic computations of subsurface fluid flow paths and hydrothermal heat transfer at globally important but physically enigmatic slow-spreading ridges.C. Integrated case studies: from porphyry-Cu-Mo-Au to an Iron Oxide Cu-Au systemPhD student Ingo Steinberger has integrated geological and geophysical constraints for the giant Bingham Canyon porphyry-Cu-Mo-Au deposit, including clear limits on the size of the subjacent magma chamber modeled from high-resolution aeromagnetic data. With the updated simulation code (Part B) he will compute a range of process evolution scenarios incorporating realistic dimensions in terms of system-scale geometry and deposit-scale chemical mass transfer, as a physical test on our magmatic vapour plume model for shallow porphyry-style mineralisation derived from fluid inclusion data. As a new PhD project, we propose the first integrated LA-ICPMS study of fluid evolution in a Proterozoic Iron-Oxide Copper-Gold ore system (Prominent Hill, South Australia), which will include recently developed Br/Cl and Pb isotope geochemistry on individual fluid inclusions.D. Geodynamics, geochronology and hydrothermal ore provinces: Banat - Apuseni interplayResearch links with Bulgarian, Romanian, Macedonian and Serbian partners established in the European GEODE and the Swiss SCOPES coordination programs are expanded by specific research into the relationships between lithosphere-scale geodynamics and ore formation in South-Eastern Europe. PhD student Melanie Moll needs a funding extension to complete her project on igneous geochronology of the Cu-Au mineralised Timok Zone of Serbia. A new PhD project will investigate the northernmost segment of Europe’s main Andean-type magmatic-metallogenic belt. In northern Serbia and southwestern Romania, Upper Cretaceous subduction magmatism may have prepared the lithosphere for extension-related calc-alkaline magmatism and Cu-Au-Te mineralisation during the Miocene. This provides an excellent test area to investigate post-subduction hydrous magma generation and ore formation.