Directory

Research Interests

Research interests include conditions of early Earth during the initiation of life; constraining the amount of continental lithosphere through time; understanding the flux and timing of asteroids impacting the Earth-Moon system and the association with major extinction events; and the evolution of the Himalaya and the Tibetan Plateau.

Current Research Projects

• Impact flux to Earth-Moon system through time
• Early Earth research
• Global effects due to impact including mass extinction events
• Evolution of the Himalaya and the Tibetan Plateau

1. Harrison, T.M. and Wielicki, M.M., 2016. From the Hadean to the Himalaya: 4.4 Ga of felsic terrestrial magmatism. American Mineralogist, 101(6), pp.1348-1359.
2. Wielicki, M.M., Harrison, T.M., 2015. Zircon formation in impact melts: Complications for deciphering planetary impact histories. Geological Society of America Special Paper 518, 127-134.
3. Tremblay, M.M., Fox, M., Schmidt, J.L., Tripathy-Lang, A., Wielicki, M.M., Harrison, T.M., Zeitler, P.K., Shuster, D.L., 2015. Erosion in southern Tibet shut down at ~10 Ma due to enhanced rock uplift within the Himalaya. Proceedings of the National Academy of Sciences 112, 12030-12035.
4. Wielicki, M.M., Harrison, T.M., Stockli, D.F., 2014. Dating terrestrial impact structures: U-Pb depth profiles and (U-Th)/He ages of zircon. Geophysical Research Letters 41, 4168-4175.
5. Wielicki, M.M., Harrison, T.M., Schmitt, A.K., 2012.  Geochemical Signatures and Magmatic Stability of Impact Produced Zircon. Earth and Planetary Science Letters 321-322, 20-31.