|
|
Stefanie Japel Department of Physics MSC 3D Phone: 505-646-4446 Fax: (505) 646-1934 Email: japel@nmsu.edu |
|
My work focuses on experiments conducted in order to better constrain the light element content of the Earth’s interior and to study the effects that light elements and water have on both nominally anhydrous minerals and iron-nickel alloys. One of the most volatile debates in Earth Science today focuses on the light element content of the Earth’s interior. We know from seismic studies that the Earth’s core is up to 10% lighter than a pure iron-nickel alloy. There must be some quantity of light elements in addition to the iron and nickel, but we have yet to determine what these light elements are, and exactly what effect they have on core properties such as rheology, conductivity, viscosity, and magnetism. Another important controversy in the “light elements in the interior” debate is the effect that water (stored in minerals as H20 or OH groups) has on earth processes. Water enters the interior as a component of minerals that make up subducting (oceanic) slabs. When the water is released, it affects the overlying rock, creating zones of upwelling and volcanic activity. At greater depth, water affects the flow of the liquid mantle, and may also contribute to activity in the 660km transition zone. Study of hydrous silicates is essential to the understanding of the mechanisms for water storage and release, and the effect this has on the surrounding environment. |
|||
|
Professional Experience 2005-Present Postdoctoral Researcher Department of Physics 2003-2005 Postdoctoral Fellow High-Pressure Mineral Physics Max-Planck Institute for Chemistry 1998-2003 Predoctoral Fellow Carnegie Institution of Education 2003 Ph.D. in Earth and Planetary Sciences The Johns
Hopkins University and Carnegie Institution of Research advisors: David R. Veblen, Charles T. Prewitt Thesis: A Study of Light Elements and Water in the Earth’s Interior
1998 B. S. in Geology Research advisors: John B. Parise, Hannah Nekvasil, Donald H. Lindsley Thesis: High-pressure high-temperature study of negative thermal expansion materials ZrW2O8
and HfW2O8 Awards and Honors 2006 Bayeriches Geoinstitut Visiting Scientist 2003-2005 Max-Planck Institute for Chemistry Postdoctoral Fellow 1999-2004 Carnegie Institution of 2000-2001 Robert Balk Fellowship 1998-1999 Christina L. Balk Fellowship, A.J. Bauernschmidt, Jr. Fellowship, J. Brian Eby Fellowship, Arnold E. Waters, Jr. & Elizabeth Steward Waters Fellowship 1998 Oliver A. Schaeffer Award for Outstanding Achievement and Dedication 1997 Carnegie Institution of 1995 James Burkehead Memorial Scholarship Teaching Experience 2001 Teaching Assistant Guided Tour of the Planets (course, Johns Hopkins University) 1999 Teaching Assistant Crystallography (course and lab, Johns Hopkins University) Mineralogy (course and lab, 1998 Teaching Assistant Optical Mineralogy (course and lab, SUNY StonyBrook) 1997 Teaching Assistant Mineralogy and Petrology (course and lab, SUNY StonyBrook) 1996 Teaching Assistant Planet Earth (course, SUNY StonyBrook)
Publications Errandonea, D., Boehler,
R., Japel, S., Mezouar, M., and Benedetti,
L.R., “Structural
transformation of compressed solid Ar: An x-ray
diffraction study to 114 GPa,”
Physical Review B 73, 092106 (2006) Ross, M., Boehler, R., Japel, S., “Melting of bcc transition metals and icosahedral clustering. Study of Matter at Extreme Conditions,” Journal of the Physics and Chemistry of Solids 67, 2178 (2006) Japel, S., Schwager, B., Boehler, R., Ross, M., “Melting of copper and nickel at high pressure; the role of d electrons,” Physical Review Letters 95, 167801-4 (2005) Dera, P., Prewitt, C. T., Japel, S., Bish, D. L., and Johnston, C. T., “Pressure-controlled polytypism in hydrous layered materials,” American Mineralogist 88, 1428-1435 (2003) Konzett, J., and Kitchel, S., “High P-T phase relations and stability of a (21)-hydrous clinopyribole in the system K2O-Na2O-CaO-MgO-Al2O3-SiO2-H2O: An experimental study to 18 GPa,” American Mineralogist 88, 1073-1083 (2003) Dera, P., Hazen, R. M., Kitchel, S., “Phase transitions and high-pressure crystal chemistry of BaCuSi2O6: A novel silicate with Si4O12 rings,” 18th AIRAPT International Conference on High Pressure Science and Technology: Proceedings, 79 (2001) Japel,
S., Prewitt, C.T., Boctor, N., Ma, Y., “ In Preparation Japel, S., Kiefer, B., “FeP at pressures up to 70GPa, phase transitions, magnetic structure, and EOS,” (in preparation for American Mineralogist) Japel, S., Boehler, R., Ross, M., “The role of f-electrons in the melting behavior of Sn and Pb at high pressure,” (in preparation for Physical Review Letters) Japel S., Prewitt, C.T., Boctor, N., “Iron and nickel phosphides: synthesis, characterization, compressibility,” (in preparation for American Mineralogist) Recent Presentations (2004-present) 2006: Japel, S., Kiefer, B., “FeP at pressures up to 70GPa, phase transitions, magnetic structure, and EoS.” American Geophysical Union fall meeting, abstract number MR51C-08, December 15, 2006 2006: “High-pressure high-temperature studies in the diamond anvil cell: Applications in Earth science and beyond,” New Mexico State University Physics Colloquium Series, February 3, 2006 2006: “Iron and nickel phosphides at high
temperature and pressure,” Bayrisches Geoinstitut Experimentelle Geochemie und Geophysik Seminar, July 27, 2006 2006: “High-pressure melting
experiments,” Bayrisches Geoinstitut
Doctoral Program Lecture,
July 20, 2006 2005: “High-pressure, high-temperature studies in the diamond anvil cell: From synthesis to experiment,” Max-Planck Institute for Chemistry Seminar, November 18, 2005 2005: Japel S., Schwager, B., Boehler, R., Ross,M., “Melting of Cu and Ni: the role of d-Electrons,” Joint 20th AIRAPT – 43rd EHPRG Conference on Science and Technology of High Pressure 2004:
Japel, S., Boehler, R., Ross, M., “Melting Curve of Copper,” Gordon Conference for Research at High Pressure
Community Service 2006: Convenor: Earth’s Core (Union Session.) AGU Fall Meeting Presiding
Representative: Ironworkers Bearing Phases in the Presiding Representative: Earth’s Core II. AGU Fall Meeting Presiding Representative: Earth’s Core II Posters. AGU Fall Meeting 2002: Presiding Representative: Advances in Mineral and Rock Physics Posters AGU Fall Meeting 1997: Presiding Representative: Prewitt Special Session III: Physical Properties of Glasses and Mineral Posters, AGU Fall Meeting References
|
|||
|
|