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Dr. Ali Polat

Professor

Editor-in-Chief, the Canadian Journal of Earth Sciences

Trace element and isotope geochemistry, geodynamics, anorthosite petrogenesis, Archean crustal evolution

Department of Earth and Environmental Sciences
University of Windsor
401 Sunset Avenue
Windsor, Ontario, N9B 3P4, Canada

(519) 253-3000 x2498
Fax: (519) 973-7081 
Room 212 Memorial Hall
polat@uwindsor.ca

Dr Ali Polat in Alaska


Education

  • B.Sc. Technical University of Istanbul, Turkey, 1988
  • M.Sc. University of Houston, Texas, U.S.A., 1992
  • Ph.D. University of Saskatchewan, Canada, 1998

Editorial Board Memberships

  • Editor-in-Chief, Canadian Journal of Earth Sciences, 2013-2019.
  • Member of the Editorial Board, Geology, 2013-2014.
  • Member of the Editorial Board, Geoscience Frontiers, 2012-2016.
  • Member of the Editorial Board, Lithos, 2008-2019
  • Member of the Editorial Board, Canadian Journal of Earth Sciences, 2008-2012.
  • Member of the Editorial Board, Turkish Journal of Earth Sciences, 2013-2015.

Awards & Recognition

  • China University of Geosciences at Wuhan, Visiting Distinguished Professor, 2018
  • Elected to the Science Academy (Turkey), November 2016
  • Faculty Performance Award, Faculty of Science, University of Windsor, 2015
  • Outstanding Faculty Research Award, University of Windsor, 2015
  • People’s Republic of China Chang Jiang Scholar Award, 2015
  • Geological Association of Canada, W.W. Hutchison Medal, 2014
  • Certificate of Excellence in Reviewing, Precambrian Research, 2013
  • Faculty Performance Award, Faculty of Science, University of Windsor, 2012
  • Exceptional Reviewer for Geology in 2012.
  • Exceptional Reviewer for Geology in 2011.
  • Tectonophysics most cited article award 2005 to 2010, 2011.
  • Faculty of Science Dean’s Special Recognition Award, University of Windsor, 2010
  • Faculty of Science Certificate of Appreciation Award, University of Windsor, 2009
  • Faculty of Science Dean’s Special Recognition Award, University of Windsor, 2007
  • Research and Scholarship Excellence-Canada Foundation for Innovation New Opportunity Fund, University of Windsor, 2003
  • Research and Scholarship Excellence-Premier’s Research Excellence Award, University of Windsor, 2003
  • Alexander von Humboldt Research Fellowship, Max-Planck-Institute, für Chemie Mainz, Germany, 1998-2000
  • Max-Planck Society Fellowship, Max-Planck-Institute, für Chemie, Mainz, Germany, 2000-2002

Courses

  • ESCI-1020 Introduction Planetary Science
  • ESCI-1010 Our Changing Earth
  • ESCI-2411 Introduction to Petrology
  • ESCI-2421 Soils and Sediments
  • ESCI-2101 Earth Materials
  • ESCI-8400 Advanced Topics in Igneous Petrology and Global Tectonics
  • ESCI-8420 Research Methods in Geochemistry
  • ESCI-8800 ESCI-8800
  • 61-320 Igneous Petrology
  • 61-321 Metamorphic Petrology
  • 61-325 Igneous and Metamorphic Petrology
  • 66-280 Field Camp I
  • 61-380 Field Camp II

Ongoing Research Projects

Dr. Polat in Greenland

  • Petrogenesis and geodynamic setting of Archean anorthosite-bearing layered intrusions in Canada and Greenland
  • Petrogenesis and geodynamic origin of Archean greenstone belts and associated granitoids in Canada and China
  • Origin of lithospheric mantle xenoliths in the Canadian Cordillera, British Columbia
  • Petrogenesis of Proterozoic ophiolitic and granitic rocks in the Yangtze Craton, southern China
  • Origin of Paleozoic ophiolites and mélanges in the Altaid orogenic system, northern China

Publications

  1. Polat, A., Frei, R., Longstaffe, F. J., Thorkelson, D. J.,  Friedman, E., 2018. Petrology and geochemistry of the Tasse mantle xenoliths of the Canadian Cordillera: A record of Archean to Quaternary mantle growth, metasomatism, removal, and melting. Tectonophysics 737, 1-26. doi:10.1016/j.tecto.2018.04.014 .
  2. Ma, X., Yang, K., Polat, A., 2018.U–Pb ages and Hf isotopes of detrital zircons from pre-Devonian sequences along the southeast Yangtze: a link to the final assembly of East Gondwana. Geological Magazine. doi:10.1017/S0016756818000511.
  3. Zhang, P., Wang, G., Polat, A., Zhu, C., Shen, T., Chen, Y., Chen, C., Guo, J., Liu, Y., 2018. Emplacement of the ophiolitic mélanges in the west Karamay area: Implication for the Late Paleozoic tectonic evolution of West Junggar, NW China. Tectonophysics. doi.org/10.1016/j.tecto.2018.08.019.
  4. Zhang, P., Wang, G., Polat, A., Shen, T., Chen, Y., Zhu, C., Wu, G., 2018. Geochemistry of mafic rocks and cherts in the Darbut and Karamay ophiolitic mélanges in West Junggar, NW China: Evidence for a Late Silurian to Devonian back-arc basin system. Tectonophysics. 10.1016/j.tecto.2018.08.018.
  5. Yang, X.M., Drayson, D.,  Polat, A., 2018. S-type granites in the western Superior Province: a marker of Archean tectonic boundaries. Canadian Journal of Earth Sciences. doi.org/10.1139/cjes-2018-0056.
  6. Polat, A., Longstaffe, F.J., Frei, R., 2018. An overview of anorthosite-bearing layered intrusions in the Archaean craton of southern West Greenland and the Superior Province of Canada: Implications for Archaean tectonics and the origin of megacrystic plagioclase. Geodinamica Acta 30, 84-99.
  7. Polat, A., Frei, R., Longstaffe, F.J., Woods, R., 2018. Petrogenetic and geodynamic origin of the Neoarchean Doré Lake Complex, Abitibi subprovince, Superior Province, Canada. International Journal of Earth Sciences 107, 811-843.
  8. Wang, J., Deng, H., Kusky, T., Polat, A., 2018. Comments on “Paleoproterozoic arc-continent collision in the North China Craton: Evidence from the Zanhuang Complex” by Li et al. (2016), Precambrian Research 286, 281–305. Precambrian Research 304, 171-173 (Letter to Editor).
  9. Xu, Y., Yang, M-L., Polat, A., Yang, K-.G., Meng, Y.K., Li, R-H., Wang, Z-B., 2018. Zircon U-Pb ages and Hf isotopic compositions of two types of supracrustal rocks in the Northeastern Sulu UHP terrane: Constraints on the surface boundary between South China and North China. International Geology Review https://doi.org/10.1080/00206814.2018.1437787.
  10. Deng, H., Kusky, T., Polat, A., Lan, B., Huang, B., Peng, H., Wang, J., Wang, S., 2018. Magmatic record of Neoarchean arc-polarity reversal from the Dengfeng segment of the Central Orogenic Belt, North China Craton. Precambrian Research, doi: https://doi.org/10.1016/ j.precamres.2018.01.020 (February).
  11. Han, Q., Peng, S., Polat, A., Kusky, T., Deng, H., Wu, T., 2018. A ca.2.1 Ga Andean-type margin built on metasomatized lithosphere in the northern Yangtze craton, China: Evidence from high-Mg basalts and andesites. Precambrian Research 309, 309–324.
  12. Yang, Z-N., Yang, K-G., Polat, A., Xu, Y., 2018. Early crustal evolution of the eastern Yangtze Block: Evidence from detrital zircon U-Pb ages and Hf isotopic composition of the Neoproterozoic Huashan Group in the Dahongshan Area. Precambrian Research 309, 248–270.
  13. Shaheen, M.E., Gagnon, J.E., Fryer, B.J., Polat, A., 2017. A simple and rapid method for preparing a diversity of powdered materials for analysis by laser ablation inductively coupled plasma mass spectrometry. International Journal of Mass Spectrometry 421, 104–115.
  14. Huang, Y., Wang, L., Kusky, T., Robinson, P.T., Peng, S., Polat, A., Deng, H., 2017. High-Cr chromites from the late Proterozoic Miaowan Ophiolite Complex, South China: Implications for its tectonic environment of formation. Lithos 288–289, 35–54.
  15. Wang, J., Deng, H., Kusky, T., Polat, A., 2017. Comments to “Paleoproterozoic meta-carbonates from the Central segment of the Trans-North China Orogen: Zircon U-Pb geochronology, geochemistry, and carbon and oxygen isotopes” by Tang et al., 2016, Precambrian Research 284: 14–29. Precambrian Research 294, 344-349.
  16. Han, Q., Peng, S., Kusky, T., Polat, A., Jiang, X., Cen, Y., Liu, S., Deng, H., 2017.  A Paleoproterozoic ophiolitic mélange, Yangtze craton, South China: Evidence for Paleoproterozoic suturing and microcontinent amalgamation. Precambrian Research 293, 13–38.
  17. Deng, H., Peng, S., Polat, A., Kusky, T., Jiang, X., Han, Q., Wang, L., Huang, Y., Wang, J., Zeng, W., Hu, Z., 2017. Neoproterozoic IAT Intrusion into Mesoproterozoic MOR Miaowan Ophiolite, Yangtze Craton: Evidence for evolving tectonic settings. Precambrian Research 289, 75–94.
  18. Wang, J., Kusky, T., Wang, L., Polat, A., Deng, H., Wang, C., Wang, S., 2017. Structural relationships along a Neoarchean arc-continent collision zone, North China Craton. Geological Society of America Bulletin 129, 59-75. 
  19. Wang, J., Kusky, T., Wang, L., Polat, A., Wang, S., Deng, H., Fu, J., Fu, D., 2017. Petrogenesis and geochemistry of circa 2.5 Ga granitoids in the Zanhuang Massif: Implications for magmatic source and Neoarchean metamorphism of the North China Craton. Lithos 268-271, 149-162.
  20. Frei, R., Crowe, S.A, Bau, M., Polat, A., Fowle, D.A, Døssing, L.N., 2016. Oxidative elemental cycling under the low O2 Eoarchean atmosphere. Nature Scientific Reports 6, Article number: 21058.
  21. Deng, H., Kusky, T., Polat, A., Wang, C., Wang, L., Li, Y., Wang, J., 2016. A 2.5 Ga fore-arc subduction-accretion complex in the Dengfeng Granite-Greenstone Belt, Southern North China Craton. Precambrian Research 275, 241–264.
  22. Xu, Y., Yang, K.-G., Polat, A., Yang, Z.-N., 2016. The ~860 Ma mafic dikes and granitoids from the northern margin of the Yangtze Block, China: A record of oceanic subduction in the early Neoproterozoic. Precambrian Research 275, 310–331.
  23. Zhou, S., Polat, A., Longstaffe, F.J., Yang, K.G., Fryer, B.J., Weisener, C., 2016. Formation of the Neoarchean Bad Vermilion Lake Anorthosite Complex and spatially associated granitic rocks at a convergent plate margin, Superior Province, Western Ontario, Canada. Gondwana Research 33, 134-159 (May).
  24. Friedman, E., Polat, A., Thorkelson, D.J.  Frei, R., 2016. Lithospheric mantle xenoliths sampled by melts from upwelling asthenosphere: the Quaternary Tasse alkaline basalts of southeastern British Columbia, Canada. Gondwana Research 33, 200-230.
  25. Jiang, X., Peng, S., Polat, A., Kusky, T., Wang, L., Wu, T., Lin, M., Han, Q., 2016. Geochemistry and geochronology of mylonitic metasedimentary rocks associated with the Proterozoic Miaowan Ophiolite Complex, Yangtze craton, China: Implications for geodynamic events. Precambrian Research 279, 37–56.
  26. Lin, M., Peng, S., Jiang X., Polat, A., Kusky, T., Wang, Q., Deng, H., 2016. Geochemistry, petrogenesis and tectonic setting of Neoproterozoic mafic–ultramafic rocks from the western Jiangnan orogen, South China. Gondwana Research 35, 338–356.
  27. Wu, T., Polat, A., Frei, R., Fryer, B.J., Yang, K., Kusky, T., 2016. Geochemistry, Nd, Pb and Sr Isotope Systematics, and U-Pb Zircon Ages of the Neoarchean Bad Vermilion Lake Greenstone Belt and Spatially Associated Granitic rocks, Western Superior Province, Canada. Precambrian Research 282, 21-51.
  28. Şengör, A.M.C., Polat, A., 2016. Two giants of geology: Kevin Charles Anthony Burke and John Frederic Dewey. Canadian Journal of Earth Sciences 53, v-ix.
  29. Polat, A., Kokfelt, T., Burke, K.C.  Kusky, T., Bradley, D., Dziggel, A., Kolb, J., 2016. Lithological, structural, and geochemical characteristics of the Mesoarchean Târtoq greenstone belt, South-West Greenland, and the Chugach-Prince William accretionary complex, southern Alaska: Evidence for uniformitarian plate-tectonic processes. Canadian Journal of Earth Sciences 53, 1336-1371.
  30. Kusky, T.M., Polat, A., Windley, B.F., Burke, K.C., Dewey, J.F., Kidd, W.S.F., Maruyama, S., Wang, J.P., Hao, D., Wang, Z.S., Wang, C., Dong, F., Li, X.W., Peng, H.T., 2016. Insights into the tectonic evolution of the North China Craton through comparative tectonic analysis: A record of outward growth of Precambrian continents. Earth-Science Reviews 162, 387–432.
  31. Szilas, K., Hoffmann, J.E., Schulz T., Hansmeier, C., Polat, A., Viehmann, S., Kasper, H.U., Münker, C., 2016. Combined bulk-rock Hf- and Nd-isotope compositions of Mesoarchaean metavolcanic rocks from the Ivisaartoq Supracrustal Belt, SW Greenland: Deviations from the mantle array caused by crustal recycling. Chemie der Erde 76, 543–554.
  32. Wang, J., Kusky, T., Wang, L., Polat, A., Deng, H., 2015. A Neoarchean subduction polarity reversal event in the North China Craton. Lithos 220–223, 133–146.
  33. Glendenning, M.W.P., Gagnon J.E., Polat, A., 2015. Geochemistry of the metavolcanic rocks in the vicinity of the MacLellan Au–Ag deposit and an evaluation of the tectonic setting of the Lynn Lake greenstone belt, Canada: Evidence for a Paleoproterozoic-aged rifted continental margin. Lithos 233, 46-68.
  34. Polat, A., Wang, L., Appel, P.W.U., 2015. A review of structural patterns and melting processes in the Archean craton of West Greenland: Evidence for crustal growth at convergent plate margins as opposed to non-uniformitarian models. Tectonophysics, 662, 67-94.
  35. Polat, A., 2014. John Tuzo Wilson: a Canadian who revolutionized Earth Sciences. Canadian Journal of Earth Sciences 51, v-viii.
  36. Polat, A., Longstaffe, F.J., 2014. A juvenile oceanic island arc origin for the Archean (ca. 2.97 Ga) Fiskenæsset Anorthosite Complex, southwestern Greenland: Evidence from oxygen isotopes. Earth and Planetary Science Letters 396, 252-266.
  37. Huang, H., Fryer, B.J., Polat, A., Pan, Y., 2014. Amphibole, plagioclase and clinopyroxene geochemistry of the Archean Fiskenæsset Complex at Majorqap qâva, southwestern Greenland: Implications for Archean petrogenetic and geodynamic processes. Precambrian Research 247, 64-91.
  38. Deng, H., Kusky, T., Polat, A., Wang, J., Wang, L., Fu, J., Wang. Z., Yuan, Y., 2014. Geochronology, mantle source composition and geodynamic constraints on the origin of Neoarchean mafic dikes in the Zanhuang Complex, Central Orogenic Belt, North China Craton. Lithos 205, 359-378.
  39. Deng, X., Yang, K., Polat, A., Kusky, T.M., Wu, K., 2014. Zircon U–Pb ages, major and trace elements, and Hf isotope characteristics of the Tiantangzhai granites in the North Dabie orogen, Central China: tectonic implications. Geological Magazine 151, 916–937.
  40. Wang, L. Kusky, T.M., Polat, A., Wang, S., Jiang, X., Zong, K., Wang, J., Deng, H., Fu, J., 2014. Partial melting of deeply subducted eclogite from the Sulu orogen in China. Nature Communications. 5:5604 | DOI: 10.1038/ncomms6604.
  41. Polat, A., 2013. Geochemical variations in Archean volcanic rocks, southwestern Greenland: Traces of diverse tectonic settings in the early Earth. Geology 41, 379-380.
  42. Dai, J.G., Wang, C., Polat, A., Santosh, M., Li, Y., Ge, Y., 2013. Rapid forearc spreading between 130-120 Ma: evidence from geochronology and geochemistry of the Xigaze ophiolite, southern Tibet. Lithos 172-173, 1-16.
  43. Deng, H., Kusky, T., Polat, A., Wang L., Wang, J., Wang, S., 2013. Geochemistry of Neoarchean mafic volcanic rocks and late mafic dikes in the Zanhuang Complex, Central Orogenic Belt, North China Craton: Implications for geodynamic setting. Lithos 175-176, 193-212.
  44. Kusky, T.M., Windley, B.F., Safonova, I., Wakita, K., Wakabayashi, J., Polat, A., Santosh, M., 2013.  Recognition of plate stratigraphy in accretionary orogens through Earth history: A record of 3.8 billion years of sea floor spreading, subduction, and accretion. Gondwana Research 24, 501-547.
  45. Wang, J. Kusky, T.M., Polat, A., Wang, L. Deng, H., Wang, S., 2013. A late Archean tectonic mélange in the Central Orogenic Belt, North China Craton. Tectonophysics 608, 929-946.
  46. Manikyamba, C., Kerrich, R., Polat, A, Saha, A., 2013. Geochemistry of two stratigraphically-related ultramafic (komatiite) layers from the Neoarchean Sigegudda greenstone terrane, western Dharwar craton, India: evidence for compositional diversity in Archean mantle plumes. Lithos 177, 120-135. 
  47. Frei, R., Polat, A., 2013. Chromium isotope fractionation during oxidative weathering – implications from the study of a Paleoproterozoic (ca. 1.9 Ga) paleosol, Schreiber Beach, Ontario, Canada. Precambrian Research 224, 434-453.
  48. Polat, A., Santosh, M., 2013. Geological processes in the Early Earth. Gondwana Research 23, 391-393.
  49. Huang, H., Polat, Fryer, B.J., 2013. Origin of Archean tonalite–trondhjemite–granodiorite (TTG) suites and granites in the Fiskenæsset region, southern West Greenland: Implications for continental growth. Gondwana Research 23, 452-470.
  50. Polat, A., 2012. Growth of Archean continental crust in oceanic island arcs. Geology 40, 383-384.
  51. Abd El-Rahman, Y., Polat, A., Dilek, Y., Kusky, T.M., El-Sharkawi, M., Said, A., 2012. Cryogenian ophiolite tectonics and metallogeny of the Central Eastern Desert of Egypt. International Geology Review 54, 1870-1884.
  52. Huang, H., Polat, A., Fryer, B.J., Appel, P.W.U., Windley, B.F., 2012. Geochemistry of the Mesoarchean Fiskenæsset Complex at Majorqap qâva, SW Greenland: Evidence for two different magma compositions. Chemical Geology 314-317, 66-82.
  53. Manikyamba, C., Kerrich, R., Polat, A., Raju, K., Satyanarayanan, M., Krishna, A.K., 2012. Arc picrite-potassic adakitic-shoshonitic volcanic association of the Neoarchean Sigegudda Greenstone Terrane, Western Dharwar Craton: transition from arc wedge to lithosphere melting. Precambrian Research 212-213, 207-224.
  54. Polat, A., Fryer, B., Samson, I.M., Weisener, C., Appel, P.W.U., Frei, R., Windley, B.F., 2012. Geochemistry of ultramafic rocks and hornblendite veins in the Fiskenæsset layered anorthosite complex, SW Greenland: Evidence for hydrous upper mantle in the Archean. Precambrian Research 214-215, 124-153.
  55. Polat, A., Longstaffe, F., Weisener, C., Fryer, B., Frei, R., Kerrich, R., 2012. Extreme element mobility during transformation of Neoarchean (ca. 2.7 Ga) pillow basalts to a Paleoproterozoic (ca. 1.9 Ga) paleosol, Schreiber Beach, Ontario, Canada. Chemical Geology 326-327, 145-173.
  56. Hoffmann, J.E., Münker, C., Polat, A., Rosing, M.T., Garbe-Schönberg, D., 2011. The origin of decoupled Hf–Nd isotope compositions in Eoarchean rocks from southern West Greenland. Geochimica Cosmochimica Acta 75, 6610-6628.
  57. Polat, A., Fryer, B., Appel, P.W.U., Kalvig, P., Kerrich, R., Dilek, Y., Yang, Z., 2011. Geochemistry of anorthositic differentiated sills in the Archean (~2970 Ma) Fiskenæsset Complex, SW Greenland: Implications for parental magma compositions, geodynamic setting, and secular heat flow in arcs. Lithos 123, 50-72.
  58. Polat, A., Appel, P.W.U., Fryer, B., 2011. An overview of the geochemistry of Eoarchean to Mesoarchean ultramafic to mafic volcanic rocks, SW Greenland: Implications for mantle depletion and petrogenetic processes at subduction zones in the early Earth. Gondwana Research 20, 255-283.
  59. Ordóñez-Calderón, J.C., Polat, A., Fryer, B.J., Gagnon, J.E., 2011. Field and geochemical characteristics of Mesoarchean to Neoarchean volcanic rocks in the Storø greenstone belt, SW Greenland: Evidence for accretion of intra-oceanic volcanic arcs. Precambrian Research 184, 24-42.
  60. Hoffmann, J.E, Münker, C., Polat, A., König, S., Mezger, K., Rosing, M.T., 2010. Highly depleted Hadean mantle reservoirs in the sources of early Archean arc-like rocks, Isua supracrustal belt, SW-Greenland. Geochimica et Cosmochimca Acta 74, 7236-7260.
  61. Polat, A., Frei, R, Scherstén, A., Appel, P. W.U., 2010. New age (ca. 2970 Ma), mantle source composition and geodynamic constraints on the Archean Fiskenæsset anorthosite complex, SW Greenland. Chemical Geology 277, 1-20.
  62. Abd El-Rahman, Y., Polat, A., Fryer, B.J., Dilek, Y., El-Sharkawy, M., Sakran, S., 2010. The provenance and tectonic setting of the Neoproterozoic Um Hassa Greywacke Member, Wadi Hammamat area, Egypt: Evidence from petrography and geochemistry. African Journal of Earth Sciences 58, 185-196.
  63. Polat, A., Frei, R., Fryer, B., Appel, P.W.U., 2009. The origin of geochemical trends and Eoarchean (ca. 3700 Ma) zircons in Mesoarchean (ca. 3075 Ma) ocelli-hosting pillow basalts, Ivisaartoq greenstone belt, SW Greenland: evidence for crustal contamination versus crustal recycling. Chemical Geology 268, 248-271.
  64. Polat, A., Appel, P.W.U., Fryer, B., Windley, B., Frei, R., Samson, I.M., Huang, H., 2009. Trace element systematics of the Neoarchean Fiskenæsset anorthosite complex and associated meta-volcanic rocks, SW Greenland: Evidence for a magmatic arc origin. Precambrian Research 175, 87-115.
  65. Abd El-Rahman, Y., Polat, A., Dilek, Y., Fryer, B., El-Sharkawy, M., Sakran, S., 2009. Geochemistry and tectonic evolution of the Neoproterozoic incipient arc-forearc crust in the Fawakhir area, Central Eastern Desert of Egypt. Precambrian Research 175, 116-134.    
  66. Abd El-Rahman,Y., Polat, A., Dilek, Y., Fryer, B., El-Sharkawy, M., Sakran, S., 2009. Geochemistry and tectonic evolution of the Neoproterozoic Wadi Ghadir ophiolite, Eastern Desert, Egypt. Lithos 113, 158-178.
  67. Ordóñez-Calderón, J.C., Polat, A., Fryer, B., Appel, P.W.U., van Gool, J.A.M., Dilek, Y., Gagnon, J.E., 2009.Geochemistry and geodynamic origin of Mesoarchean oceanic crust in the Ujarassuit and Ivisaartoq greenstone belts, SW Greenland. Lithos 113, 133-157.
  68. Polat, A., 2009. The geochemistry of Neoarchean (ca. 2700 Ma) tholeiitic basalts, transitional to alkaline basalts, and gabbros, Wawa Subprovince, Canada: Implications for petrogenetic and geodynamic processes. Precambrian Research 168, 83-105.
  69. Appel, P.W.U., Polat, A., Frei, R., 2009. Dacitic ocelli in mafic lavas, 3.8-3.7 Ga Isua greenstone belt, West Greenland: Geochemical evidence for partial melting of oceanic crust and magma mixing. Chemical Geology 258, 105-124.
  70. Dilek, Y., Polat, A., 2008. Suprasubduction zone ophiolites and Archean tectonics. Geology 36, 431-432.
  71. Polat, A., Frei, R., Appel, P.W.U., Dilek, Y., Fryer, B., Ordóñez-Calderón, J.C., Yang, Z., 2008. The origin and compositions of Mesoarchean oceanic crust: Evidence from the 3075 Ma Ivisaartoq greenstone belt, SW Greenland. Lithos 100, 293-321.
  72. Kerrich, R., Polat, A., Xie, Q., 2008. Geochemical systematics of 2.7 Ga Kinojevis Group (Abitibi), and Manitouwadge and Winston Lake (Wawa) Fe rich basalt - rhyolite associations: Backarc rift oceanic crust? Lithos 101, 1-23.
  73. Ordóñez-Calderón, J.C., Polat, A., Fryer, B., J.E. Gagnon, J.E., Raith, J.G., Appel, P.W.U., 2008. Evidence for HFSE and REE mobility during calc-silicate metasomatism, Mesoarchean (~3075 Ma) Ivisaartoq greenstone belt, southern West Greenland. Precambrian Research 161, 317-340.
  74. Polat, A., Kusky, T., Li, J., 2007. Geochemistry of Neoarchean (ca. 2.55-2.50 Ga) volcanic and ophiolitic rocks in the Wutaishan Greenstone Belt, Central Orogenic Belt, North China Craton: Implications for geodynamic setting and continental growth: Reply. Geological Society of America Bulletin 119, 490-492.
  75. Frei, R., Polat, A., 2007. Source heterogeneity for the major components of ~3.7 Ga banded iron formations (Isua Greenstone Belt, Western Greenland): Tracing the nature of interacting water masses in BIF formation. Earth and Planetary Science Letters 253, 266-281.
  76. Polat, A., Appel, P.W.U., Frei, R., Pan, Y., Dilek, Y Ordóñez-Calderón, J.C., Fryer, B., Hollis, J.A., Raith, J.G., 2007. Field and geochemical characteristics of the Mesoarchean (~3075 Ma) Ivisaartoq greenstone belt, southern West Greenland: Evidence for seafloor hydrothermal alteration in a supra-subduction oceanic crust. Gondwana Research 11, 69-91.
  77. Polat, A., Herzberg, C., Münker, C., Rodgers, R., Kusky, T., Li, J., Fryer, B., Delaney, J., 2006. Geochemical and petrological evidence for a supra-subduction zone origin of Neoarchean (ca. 2.5 Ga) peridotites, central orogenic belt, North China craton. Geological Society of America Bulletin 118, 771-784.
  78. Polat, A., Li, J., Fryer, B., Kusky, T., Gagnon, J., Zhang, S., 2006. Geochemical characteristics of the Neoarchean (2800-2700 Ma) Taishan Greenstone Belt, North China Craton: Evidence for plume-craton interaction. Chemical Geology 230, 60-87.
  79. Kerrich, R., Polat, A., 2006. Archean greenstone-tonalite duality: thermochemical mantle convection models or plate tectonics in the early Earth global dynamics? Tectonophysics 415, 141-165.
  80. Polat, A., Frei, R., 2005. The origin of early Archean banded iron formations and of continental crust, Isua, southern West Greenland. Precambrian Research 138, 151-175.
  81. Polat, A., Kusky, T.M., Li, J. H., Fryer, B., Kerrich, R., Patrick, K., 2005. Geochemistry of Neoarchean (ca. 2.55-2.50 Ga) volcanic and ophiolitic rocks in the Wutaishan Greenstone Belt, Central Orogenic Belt, North China Craton: Implications for geodynamic setting and continental growth. Geological Society of America Bulletin 117, 1387-1399.
  82. Li, J.H., Niu, X.L., Chen, Z., Kusky, T.M., Polat, A., 2005. Discovery of deep-level foreland structures in Taihang Mt. and its implications for early tectonic evolution of North China. Progress in Natural Science 15, 229-238.
  83. Polat, A., Münker, C., 2004. Hf-Nd isotope evidence for contemporaneous subduction processes in the source of late Archean arc lavas from the Superior Province, Canada. Chemical Geology 213, 403-429.
  84. Frei, R., Polat A., Meibom, A., 2004. The Hadean upper mantle conundrum: Evidence for source depletion and enrichment from Sm-Nd, Re-Os and Pb isotope compositions in 3.71 Gy boninite-like metabasalts from the Isua supracrustal belt, Greenland. Geochimica et Cosmochimica Acta 68, 1645-1660.
  85. Li, J.H., Niu, X.L., Kusky, T.M., Polat, A., 2004. Neoarchean plate tectonic evolution of North China and its correlation with global tectonic blocks, Earth Science Frontiers 11, 273-283.
  86. Polat, A., Hofmann, A.W., 2003. Alteration and geochemical patterns in the 3.7-3.8 Ga Isua greenstone belt, West Greenland. Precambrian Research 126, 197-218.
  87. Polat, A., Hofmann, A.W., Münker, C., Regelous, M., Appel, P.W.U, 2003. Contrasting geochemical patterns in the 3.7-3.8 Ga pillow basalt cores and rims, Isua greenstone belt, Southwest Greenland: Implications for post-magmatic alteration processes. Geochimica et Cosmochimica Acta 67, 441-457.
  88. Polat, A., Kerrich, R., 2002. Nd-isotope systematics of ~2.7 Ga adakites, magnesian andesites, and arc basalts, Superior Province, Canada: Evidence for shallow crustal recycling at Archean subduction zones. Earth and Planetary Science Letters 202, 345-360.
  89. Wyman, D., Kerrich, R., Polat, A., 2002. Assembly of Archean cratonic mantle Lithosphere and crust: Plume-arc interaction in the Abitibi-Wawa subduction-accretion complex. Precambrian Research 115, 37-62.
  90. Polat, A., Hofmann, A.W., Rosing, M., 2002. Boninite-like volcanic rocks in the 3.7 - 3.8 Ga Isua greenstone belt, West Greenland: Geochemical evidence for intra-oceanic subduction zone processes in the early Earth. Chemical Geology 184, 231-254.
  91. Polat, A., Kerrich, R., 2001. Magnesian andesites, Nb-enriched basalt-andesites, and adakites from late Archean 2.7 Ga Wawa greenstone belts, Superior Province, Canada: Implications for late Archean subduction zone petrogenetic processes. Contributions to Mineralogy and Petrology 141, 36-52.
  92. Polat, A., Kerrich, R., 2001. Geodynamic processes, continental growth, and mantle evolution recorded in late Archean greenstone belts of the southern Superior Province, Canada. Precambrian Research 112, 5-25.
  93. Polat, A., Kerrich, R., 2000. Archean greenstone belt volcanism and the continental growth-mantle evolution connection: Constraints from Th-U-Nb-LREE systematics of the 2.7 Ga Wawa Subprovince, Superior Province, Canada. Earth and Planetary Science Letters 175, 41-54.
  94. Polat, A., Kerrich, R., 1999. Formation of an Archean tectonic melange in the Schreiber-Hemlo greenstone belt, Superior Province, Canada: Implications for Archean subduction-accretion processes. Tectonics 18, 733-755.
  95. Polat, A., 1999. Geochemistry of subduction-related mafic to felsic volcanic rocks of the late Archean Wawa greenstone belts, Superior Province, Canada. Ari 51, 277-295.
  96. Polat, A., Kerrich, R., Wyman, D.A., 1999. Geochemical diversity in oceanic komatiites and basalts from the late Archean Wawa greenstone belts, Superior Province, Canada: trace element and Nd Isotope evidence for a heterogeneous mantle. Precambrian Research 94, 139-173.
  97. Kerrich, R., Polat, A., Wyman, D., Hollings, P., 1999. Trace element systematics of Mg-, to Fe-tholeiitic basalt suites of the Superior Province: Implications for Archean mantle reservoirs and greenstone belt genesis. Lithos 46, 163-187.
  98. Kerrich, R., Wyman, D., Hollings, P., Polat, A., 1999. Variability of Nb/U and Th/La in 3.0 to 2.7 Ga Superior Province ocean plateau basalts: implications for the timing of continental growth and lithosphere recycling. Earth and Planetary Science Letters 168, 101-115.
  99. Kusky, T., Polat, A., 1999. Growth of Granite-Greenstone terranes at convergent margins, and stabilization of Archean cratons. Tectonophysics 305, 43-73.
  100. Polat, A., Kerrich, R., Wyman, D. A., 1998. The late Archean Schreiber-Hemlo and White River-Dayohessarah greenstone belts, Superior Province: Collages of oceanic plateaus, Oceanic island arcs, and subduction-accretion complexes. Tectonophysics 289, 295-326.
  101. Yilmaz, Y., Polat, A., 1998. Geology and evolution of the Thrace volcanism, Turkey. Acta Volcanologica 10, 293-303.
  102. Polat, A., Kerrich, R., Casey, J. F., 1997. Geochemistry of Quaternary basalts erupted along the East Anatolian and Dead Sea Fault zones of southern Turkey: Implications for mantle sources. Lithos 40, 55-68.
  103. Polat, A., Casey, J. F., Kerrich, R., 1996. Geochemical characteristics of accreted material beneath the Pozanti-Karsanti ophiolite, Turkey, Intra-oceanic detachment, assembly and obduction. Tectonophysics 263, 249-276.
  104. Polat, A., Casey, J. F., 1995. Structural record of the emplacement of the Pozanti-Karsanti ophiolite onto the Menderes Taurus block in the late Cretaceous, Eastern Taurides, Turkey. Journal of Structural Geology 17, 1673-1688.
  105. Polat, A., 1994. Structural analysis of the Aladag mélange complex, eastern Taurides. Bulletin of Technical University of Istanbul 47, 291-508.
  106. Polat, A., 1988. Evidence for Plaeo- to Neo-tectonic transition in the Buyuk Polat-Yarimsogut region (Sungurlu-Çorum) and origin of the Kirikkale-Erbaa fault zone. Turkish Association of Petroleum Geologists 11, 127-140.
  1. Polat, A., 2014. A review of the geodynamic significance of hornblende-bearing ultramafic rocks in the Mesoarchean Fiskenæsset Complex, SW Greenland. In: Dilek, Y., Furnes, H. (Eds.), Evolution of Archean Crust and Early Life. Modern Approaches in Solid Earth Sciences 7, Springer, pp. 127-148.
  2. Polat, A., Kerrich, R., Windley, B.F., 2009. Archean crustal growth processes in the southern Superior Province and southern West Greenland: geodynamic and magmatic constraints. In: Cawood, P. and Kröner, A. (Eds.), Accretionary Orogens in Space and Time, Geological Society of London, Special Publication 318, 155-191.
  3. Polat, A., Frei, R., Appel, P.W.U., Fryer, B., Dilek, Y., Ordóñez-Calderón, J.C., 2008. An overview of the lithological and geochemical characteristics of the Mesoarchean (ca. 3075 Ma) Ivisaartoq greenstone belt, SW Greenland. In: Pease, V., Condie, K.C. (Editors), When Did Plate Tectonics Begin on Planet Earth? Geological Society of America, Special Paper 440, 51-76.
  4. Polat, A., Kerrich, R., 2006. Reading the Geochemical Fingerprints of Archean Hot Subduction Volcanic Rocks: Evidence for Accretion and Crustal Recycling in a Mobile Tectonic Regime. In: Benn, K., Mareschal, J.C., Condie, K.C. (Eds.), Archean Geodynamics and Environments, American Geophysical Union Geophysical Monograph Series 164, 189-213.
  5. Polat, A., Hofmann, A.W., Appel, P.W.U., 2004. Geochemical diversity in volcanic rocks of the 3.7-3.8 Ga Isua greenstone belt, SW Greenland: Implications for Mantle Composition. In: P. Eriksson et al. (Eds.), Tempos and events in Precambrian Time, Development in Precambrian Geology, volume 12, Elsevier, pp.74-88.
  6. Polat, A., Kerrich, R., 2004. Precambrian arc associations: Boninites, adakites, magnesian andesites, and Nb-enriched basalts. In: T.M. Kusky (Ed.), Precambrian Ophiolites and Related Rocks, Development in Precambrian Geology, volume 13, Elsevier, pp. 567-597.
  7. Kusky, T.M., Ganley, R., Lytwyn, J., Polat, A., 2004. The Resurrection Peninsula ophiolite, mélange and accreted flysch belts of southern Alaska as an analog for trench-forearc systems in Precambrian orogens. In: T.M. Kusky (Ed.), Precambrian Ophiolites and Related Rocks, Development in Precambrian Geology, volume 13, Elsevier, pp. 625-670.
  8. Li, J., Kusky, T., Niu, X., Jun, F., Polat, A., 2004. Neoarchean massive sulfide of Wutai Mountain, North China: a back smoker chimney and mound complex within 2.50 Ga-old oceanic crust. In: T.M. Kusky (Ed.), Precambrian Ophiolites and Related Rocks, Development in Precambrian Geology, volume 13, Elsevier, pp. 339-362.

Students and Postdocs - Research Opportunities

Current Graduate Students

Glendenning, Mike,   MSc,   Co-supervised
MacLellan Au-Ag and Dot Lake Deposits: Reclassification through petrography and major, minor and trace element geochemistry

Friedman, Eyal, MSc, Source Composition of Mantle Xenoliths and Alkaline Basalts from Southeastern British Columbia

Zhou, Shuda, MSc, Petrography and Geochemistry of the Neoarchean Bad Vermilion Lake Anorthosite Complex, Superior Province, Western Ontario

Wu, Tuoyu, MSc, Geochemistry of the Neoarchean Bad Vermilion Lake (BVL) greenstone belt and associated granitic rocks , Western Superior Province, Canada

Past Graduate Students

Huang, Hua      Ph.D.     2012 
Petrogenesis of Neoarchean Fiskenaesset anorthosite complex and associated TTGs, SW Greenland

Abd El-Rahman, Yasser     Ph.D.    2009
Geochemistry of the Neoproterozoic Wadi Ghadir and Fawakhir ophiolites and assocaited rocks, Central Eastern Desert, Egypt: Implications for geodynamic setting

Ordonez, Juan Carlos      Ph.D.    2008
Geochemical Investigation of Meso- to Neoarchean (3075-2800 Ma) Supracrustal rocks in the Nuuk region, Southern West Greenland