Fangzhen Teng
  Associate Professor
  Office: JHN 435
     ESS Mailing Address
  Phone: 206-543-7615
  Fax: 206-543-0489 (shared)
  Email: fteng @ uw.edu
  Homepage: http://faculty.washington.edu/fteng/

  Research Groups: Isotope Geochemistry, Petrology/Mineralogy/Geochemistry

Areas of Interest:
isotope geochemistry; composition and evolution of the crust and mantle; origin of the early solar system

Education:
Ph.D., Geology, University of Maryland, College Park, 2005
B.S., Geochemistry, University of Science and Technology of China, 2001

Current Research Interests:
My research interest focuses on the composition and evolution of the continental crust, mantle heterogeneity and the origin and evolution of the solar system. To address these questions, I study both terrestrial and extra-terrestrial materials through analyses of non-traditional stable isotopes (lithium, magnesium and iron) and radiogenic isotopes produced by the decay of short-lived nuclides (e.g., 26Al). My research techniques involve both purification of targeted elements through column chromatography in a clean sample preparation laboratory and high-precision isotopic analyses using High Resolution Multi-Collector Inductively Coupled Plasma Mass Spectrometry (HR-MC-ICPMS). My current projects are: 1) applying Al-Mg isotopic systematics to study the formation and evolution of the early solar system; 2) tracing crust-mantle interactions by using lithium and magnesium isotopes; 3) studying planetary differentiation by using iron isotopes.

Graduate Students:
Yan Hu

Selected Publications:

*= student; ** = postdoc authors

Teng, F.-Z., Dauphas, N., Huang, S. and Marty, B. (2013) Iron isotopic systematics of oceanic basalts, Geochimica et Cosmochimica Acta, 107, 12-26.

Wang, S.-J.*, Teng, F.-Z., Williams, H. and Li, S. (2012) Magnesium isotope variations in cratonic eclogites: Origins and implications, Earth and Planetary Science Letters, 359-360, 219-226. 

Huang, K.-J.*, Teng, F.-Z., Wei, G.-J., Ma, J.-L. and Bao, Z.-Y. (2012) Adsorption and desorption-controlled magnesium isotope fractionation during extreme weathering of basalt in Hainan Island, China, Earth and Planetary Science Letters, 359-360, 73-83.

Yang, W.**, Teng, F.-Z., Zhang H.-F. and Li, S. (2012) Magnesium isotopic systematics of continental basalts from the North China craton: Implications for tracing subducted carbonate in the mantle, Chemical Geology, 328, 185-194.

Ling, M.-X.**, Sedaghatpour, F.*, Teng, F.-Z., Hays, P.D., Strauss, J. and Sun, W. (2011) Homogenous magnesium isotopic composition of seawater: an excellent geostandard for Mg isotope analysis. Rapid Communications in Mass Spectrometry, 25, 2828-2836. 

Teng, F.-Z., Dauphas, N., Helz, R.T., Gao, S. and Huang, S. (2011) Diffusion-driven magnesium and iron isotope fractionation in Hawaiian olivine, Earth and Planetary Science Letters, 308, 317-324. 

Liu, S.-A.*, Teng, F.-Z., Yang, W. and Wu, F.-Y. (2011) High-temperature inter-mineral magnesium isotope fractionation in mantle xenoliths from the North China craton, Earth and Planetary Science Letters, 308, 131-140. 

Li, W.-Y.**, Teng, F.-Z., Xiao, Y. and Huang, J. (2011) High-temperature equilibrium magnesium isotope fractionation between omphacite and garnet in eclogites, Earth and Planetary Science Letters, 304, 224-230.