School of Earth and Environment
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Ivan Savov Dr Ivan Savov

Lecturer: Subduction Zone Geochemistry

Telephone number: +44(0) 113 34 35199/ trith lab 33952 /column lab 33562
Email address: earis@leeds.ac.uk
Room: 9.113

Research Interests

I study the fluid/magma transport and compositional evolution within convergent plate margins. I am interested in establishing novel links between the elemental and isotopic signatures of island arc and collision zone volcanic rocks and the nature of the subducted slab assemblages-various sediments, altered oceanic crust, serpentinites and their metamorphic derivatives. In the lab I trace the sources of fluids and melts in the mantle by using a wide range of chemical tracers such as the isotope ratios of B, Li, Sr, Nd, Pb and Os, in combination with the concentration of highly fluid-mobile elements such as B, Li, Sb, As, I, and Cs. I also conduct a lot of fieldwork and am an active participant in the Ocean Drilling Program (ODP)- related science in the Western Pacific.

The volcanic rocks I study in the field are from the active island arc volcanoes in: Izu-Bonin-Mariana arc-basin system, S. Japan, Volcan Colima (Mexico), Avachinsky volcano (Kamchatka), Volcan Cerro Negro (Nicaragua) or from Holocene to Eocene volcanic centres in Armenia, Bulgaria, Mexico, Canada and the USA. The metamorphic rocks and mantle xenoliths I study come from various arc and forearc- related successions in the USA, Bulgaria-Greece, Marianas. In particular I am interested in studies of various aspects of melange deposits- a complex mixtures of serpentinites and veined mantle wedge peridotites with sediments and basalts/gabbros.

My major tool of research is centred around the operation and maintenance of the Thermal Ionization Mass Spectrometry lab at U. Leeds.

Currently I offer several PhD studentship projects. See Earth Sciences PhD Projects 2009

Publications:

Savov, I. P , J. Ryan, I. Haydoutov, 2001. Late Precambrian Balkan-Carpathian ophiolite - a slice of the Pan- African oceanic crust?: Geochemical and tectonic insights from Tcherni Vrah and Deli Jovan massifs, Bulgaria and Serbia, Journal of Volcanology and Geothermal Research , 110, 299- 318. doi:10.1016/S0377-0273(01)00216-5

Berger, S., Cochrane, D., Simons, K., Savov, I. P. , Ryan, J.G., Peterson, V.L., 2001. Insights from the rare earth elements into the genesis of the Buck Creek Complex, Clay County, NC, Southeastern Geology , 40, 3, 201-212.

Benton, L. D., J. G. Ryan, I. P. Savov , 2004. Lithium abundance and isotope systematics of forearc serpentinites, Conical Seamount, Mariana forearc: Insights into the mechanics of slab-mantle exchange during subduction , Geochem. Geophys. Geosyst. , 5 , Q08J12, doi:10.1029/2004GC000708

Savov, I. P. , Guggino, S., Ryan, J.G., Fryer, P., Mottl, M.J., 2004. Geochemistry of serpentinite muds and metamorphic rocks from the Mariana forearc, ODP Sites 1200 and, South Chamorro and Conical Seamounts, 2004. In Shinohara, M., Salisbury , M.H., and Richter, C. (Eds.), Proc. ODP , Sci. Results .

Snyder, G.T., Savov, I. P ., Muramatsu, Y., 2004. Iodine and boron in Mariana serpentine mud volcanoes ( ODP 125 and 195): Implications for forearc processes and subduction recycling , In Shinohara, M., Salisbury, M.H., and Richter, C. (Eds.), Proc. ODP , Sci. Results, 195.

Haydoutov,I., Kolcheva, K., Daieva, L., Savov, I . P , 2004. Evidence of boninitic type magmatism in the Variegated Formations from the East Rhodopes , Geochemistry, Mineralogy and Petrology, 40, 55-71.

Haydoutov, I., Kolcheva, K., Daieva, L., Savov, I. P. , Carrigan, C., 2004. Island arc origin of the variegated formations from the east Rhodopes , Bulgaria : implications for the evolution of the Rhodope Massif, Ofioliti , 29 (2), 145-157.

Savov, I. P ., Ryan, J. G, D'Antonio, M., Kelley, K. Mattie, P., 2005. Geochemistry of serpentinized peridotites from the Mariana Forearc- Conical Seamount, ODP Leg 125: Implications for the elemental recycling at subduction zones, Geochem. Geophys. Geosyst. , Vol. 6, No. 4, Q04J15, doi:10.1029/2004GC000777.

Savov, I. P ., Hickey-Vargas, R., D'Antonio, M., Ryan, J. G., Spadea, P., 2006. Petrology and geochemistry of West Philippine Basin basalts and early Palau-Kyushu arc volcanic clasts from ODP Leg 195, Site 1201D: Implications for the early history of the Izu-Bonin-Mariana Arc, J. Petrology , 47(2): 277-299.

Salisbury , M.H., Shinohara, M., Suetsugu, D., Arisaka, M., Diekmann, B., Januszczak, N., Savov, I.P., 2006. Leg 195 synthesis: Site 1201-a geological and geophysical section in the West Philippine Basin from the 660-km discontinuity to the mudline. In Shinohara, M., Salisbury , M.H., and Richter, C. (Eds.), Proc. ODP , Sci. Results.

Fryer, P., Gharib, J., Ross, K., Savov, I. P ., Mottl, M. J., 2006. Variability in serpentinite mudflow mechanisms and sources: ODP drilling results on Mariana forearc seamounts - Geochem. Geophys. Geosyst. , Vol. 7, Q08014, doi:10.1029/2005GC001201.

D'Antonio, M., Savov, I. P ., Spadea, P., Hickey-Vargas, R., Lockwood, J., 2006. Petrogenesis of Eocene oceanic basalts from the West Philippine Basin and Oligocene arc volcanics from the Palau-Kyushu Ridge drilled at 20°N, 135°E ( Western Pacific Ocean ) , Ofioliti , 31, v. 2.

Hickey-Vargas, R., Savov, I. P ., Bizimis, M., Ishii, T., Fujioka, K., 2007. Origin of diverse geochemical signatures in igneous rocks from the West Philippine Basin: implications for tectonic models, In Back-Arc Spreading Systems - Geological, Biological, Chemical, and Physical Interactions, Christie, D., Fisher, C. R., Lee, S.-M., and Givens, S. (eds), AGU Geophysical Monograph Series, Volume 166, 287-303.

Savov, I. P ., Shirey, S., Ryan, J. G., and Tonarini, S., 2007 , Addition of ancient mantle to young arc magmas-insights from B and Os isotopes: State of the Arc (SOTA)'2007 meeting volume, 47-53.

Savov, I. P ., Ryan, J. G, D'Antonio, M., Fryer, P., 2007. Shallow slab fluid release across and along the Mariana arc-basin system: Insights from geochemistry of serpentinized peridotites from the Mariana Forearc , J. Geophys. Res., doi:10.1029/2006JB004749.

Savov, I. P ., Luhr. J., Navaro, C., 2008. Petrology and Mineralogy of Lava and Ash Erupted f rom Volcán Colima, México, During 1999-2005, Journal of Volcanology and Geothermal Research , Volume 174, 4, 241-256. doi:10.1016/j.jvolgeores.2008.02.007

Marks, M., Rudnick, R. L., Ludwig, T., Marschall, H., Zack, T., Halama, R., McDonough, W.F., Rost, D., Wenzel1, T., Vicenzi, E., Savov, I. P , Altherr, R., and Markl, G., 2008. Sodic pyroxene and sodic amphibole as potential reference materials for in-situ lithium isotope determinations by SIMS, Geostandards and Geoanalytical Research, 32, 1-16, doi: 10.1111/j.1751908X.2008.00895.x

Foustoukos, D.I., Savov, I. P ., Janecky , D.R., 2008. Chemical and isotopic constraints on water/rock interactions at the Lost City hydrothermal field, 30 o N Mid-Atlantic Ridge , Geochimica Cosmochimica Acta , 72, 5457-5474. doi:10.1016/j.gca.2008.07.035

Connor, C., Martin, K., Diez, M., Savov, I. P , 2008. Limitations of the Advection-Diffusion Equation for Modeling Tephra Fallout: 1992 Eruption of Cerro Negro Volcano , Nicaragua ( submitted to Geology ).

Luhr. J., Navaro, C., Savov, I. P., 2010. Tephrochronology, petrology and geochemistry of Late-Holocene pyroclastic deposits from Volcan de Colima, Mexico, Journal of Volcanology and Geothermal Research, doi:10.1016/j.jvolgeores.2009.11.007.

Savov, I. P., Leeman, W. P., Lee, C.T., Shirey, S.B., 2009. Boron isotope variations in NW USA rhyolites-E.Oregon, Snake River Plain, Yellowstone, Journal of Volcanology and Geothermal Research, doi:10.1016/j.jvolgeores.2009.03.008.

Halama, R., Savov, I. P., McDonough, W., Rudnick, R., 2009. Li isotope recycling at subduction zones- insights from ultramafic xenoliths from Avachinsky volcano, Kamchatka, Contributions to Mineralogy and Petrology, 158, 197-222.

Diez, M., Connor, C. , Kruse, S., Connor, L., Savov, I. P., 2009.

Evidence of small-volume igneous diapirism in the shallow crust of the Colorado Plateau, San Rafael desert, Utah, Lithosphere, v.1, doi: 10.1130/L61.1: 10.

Works in progress:

Savov, I. P ., Tonarini, S., Ryan, J.G., B isotope signatures of ultramafic clasts, blueschists and slab derived porefluids from Mariana Forearc region, Leg 195- implication for the light element recycling at subduction zones ( target- Nature ).

Savov, I, P ., D'Antonio, M., Connor, C., Ghukasian, Y., Luhr., J., Petrology and geochemistry of Quaternary volcanism on the Southern Plateau of Aragats volcano, Armenia : example of mixed subduction zone and within-plate mantle sources in collision zones ( manuscript ready for submission , target- JVGR ).

Savov, I. P ., J. Luhr, Karapetian, S.,Navasardyan, G. and Kharakanian, A., Petrology and geochemistry of the collision-related bimodal  volcanism hosted in the Gegham and Hrazdan Volcanic Zones, Lake Sevan region, Armenia ( target- CMP ).

Savov, I. P ., Chan, L. H., Ryan, J. G., and Mottl, M., Li isotope signatures of ultramafic clasts, muds and slab-derived porefluids from Mariana Forearc region, Leg 195- implication for the Li recycling at subduction zones ( target- Geology ).

Savov, I . P , Bizimis, M., Halama, R., Haydoutov, I., Eclogites and boninites in the basement of the Rhodope massif (Bulgaria)- implications for the evolution of the NE Mediterranean region in the Paleozoic ( target- Lith os).

Savov, I. P ., Rost, D.,Vicenzi, E., Zack, T., Microscale mapping of boron and lithium in the Mariana sub-arc mantle via ToF-SIMS, ( target-G-cubed).

Savov, I. P ., Shirey, S., Horan, M., and Mock, T., Re-Os isotope and PGE elemental signatures of serpentinites from the Mariana forearc region, Leg 195, ( target-Geology ).

Savov, I. P ., Shirey, S., Mock, T., and Ryan, J. G., Boron isotope signatures of volcanic rocks from the Society Islands, French Polynesia .

Recent Collaborations:

Drs. Steve Shirey, Richard Carlson & Erik Hauri (Carnegie Institution , Washington DC , USA ).

Prof. Rosemary Hickey-Vargas (Florida Int'l Univ., Miami , FL. , USA ).

Prof. Roberta Rudnick, Bill McDonough & Ralf Halama (Univ. Maryland , College Park , USA ).

Prof. Bill Leeman (Rice University/NSF).

Prof. Patricia Fryer (Univ. Hawaii/SOEST, Honolulu, HI., USA).

Prof. Massimo D'Antonio (Univ.of Napoli/ Osservatorio Vesuviano , Napoli, Italy).

Prof. Sonia Tonarini (CNR- Institute for Geochemistry and Geochronology, Pisa, Italy).

Drs. James Luhr, Jonathan Castro & Detlef Rost (Smithsonian NMNH & Global Volcanism Program, Washington DC , USA ).

Profs. Jeffrey Ryan and Charles Connor ( University of South Florida , Tampa , FL. , USA ).

Prof. Ivan Haydoutov (Bulgarian Geological Institute, Sofia, Bulgaria).

Dr. Thomas Zack (Mineralogical Institute, University of Heidelberg , Germany ).

Publications