个人简介

2011 Cozarelli Prize. Outstanding paper of year, Physical Sciences group, Proceedings of the National Academy of Sciences; award by the U.S. National Academy of Sciences 2011 Chancellors Award for Contribution to Campus Diversity 2010 Visiting Professor, School of Environmental Science and Engineering, Sun Yat-Sen University, China 2010 Selected one of 100 distinguished alumni in 100 years. Florida State University 2009 Goldschmidt Medal The Geochemical Society 2009 Elected, Fellow, European Association for Geochemistry 2008 Elected Fellow: Geochemical Society 2007 Asteroid (7004) Markthiemens named in his honor, International Astronomical Union 2006 Elected, National Academy of Sciences 2006 Elected, Fellow American Geophysical Union 2002 Elected, American Academy Arts and Sciences 2002 American Chemical Society Distinguished Scientist of the year (San Diego) 2001 Chancellors Associates Award for Excellence in Research 1999 - Dean of Physical Sciences 1999 E.O. Lawrence Award, U.S. Department of Energy 1999 Chancellors Associates Chair 1999 BiCentennial Volume of Who's Who in Science and Engineering 1990-1991 Alexander von Humboldt Fellowship 1984-1989 Camille and Henry Dreyfus Teacher-Scholar 1977-1980 Postdoctoral Fellow, Enrico Fermi Institute, University of Chicago

研究领域

Physical/Analytical Chemistry

In our laboratory, we have developed the analytical capability to measure stable isotope variations at ultra-high precision (0.04 parts per thousand) in sulfur (34S/32S, 33S/32S), oxygen (18O/16O, 17O/16O), carbon (13C/12C), and nitrogen (15N/14N). Using this high precision as a diagnostic tracer, we have developed experimental programs in widely varying research fields which include atmospheric chemistry, the physical chemistry of photochemical reactions, early solar system history, paleo atmospheres, and the origin of life and of the solar system. Our group employs stable isotope measurements to delineate the fates of different atmospheric species. From combined laboratory photochemistry experiments and field (tropo- and stratospheric) measurements, we are able to determine specific reaction pathways. High altitude samples are taken from aircraft, balloons and rockets to as high as 60 km. Our research sampling focuses upon studying the global impact by many important atmospheric molecules. These species include carbon dioxide, nitrous oxide, carbon monoxide, ozone, and sulfate (acid rain). These samples are collected throughout the world and include our work at the South Pole and in tropical rainforests. Hemispheric aerosol transport is also studied.

近期论文

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The soret effect and isotopic fractionation in high-temerature silicate melt. With G. Dominguez, G. Wilkins, M. H. Thiemens. Nature, 473, 70 (2011). Experimental test of self-shielding in the vacuum ultraviolet photodissociation of CO. With S. Chakraborty, M. Ahmed, T. L. Jackson, M. H. Thiemens. Science, 321, 1328-1331 (2008). Mass-independent sulfur isotopic compositions in stratospheric volcanic eruptions. With M. Baroni, M. H. Thiemens, R. J. Delmas, J. Savarino. Science 315, 84-86 (2007). Photochemical mass independent sulfur isotopes in achondritic meteorites. With V. K. Rai, T. L. Jackson, M. H. Thiemens. Science, 309, 1062-1065 (2005) Sulfur Isotope Fluration in the Cretaceous. With A. Payton, M. Kastner, and D. Campbell. Science. 304, 1663 (2004). Atmospheric Influence of the Earth's Earliest Sulfur Cycle. With J. Farquhar, H. Bao, and M. H. Thiemens. Science. 289, 756 (2000). Evidence of Atmospheric Sulphur in the Martian Regolith from Sulphur Isotopes in Meterorites. With J. Farquhar, J. Savarino, T. L. Jackson, and M. H. Thiemens. Nature. 404, 50-52 (2000). Mass Independent Isotope Effects in Planetary Atmospheres and the Early Solar System. With M. H. Thiemens. Science. 283, 341 (1999). Triple Isotope Composition of Atmospheric Oxygen as a Tracer of Biosphere Productivity. With Luz, Boaz, Barkan, Eugeni, M. L. Bender, M. H. Thiemens, and K. A. Boering. Nature. 404, 547 (1999). Carbon Dioxide and Oxygen Isotope Anomalies In The Mesosphere and Stratosphere. With M. H. Thiemens, T. Jackson, E. C. Zipf, P. W. Erdman, and C. Van Egmond. Science. 270, 969 (1995).