Sytle Antao

Sytle Antao

Positions

Professor

Faculty of Science, Department of Earth, Energy, and Environment

Contact information

Email

antao@ucalgary.ca

Web presence

ucalgary.ca/mineralogy-crystallography

Phone number

Office: +1 (403) 220-3083

Location

Office: ES532

Background

Educational Background

Ph.D. Mineralogy and Mineral Physics, Stony Brook University, New York,

Research

Areas of Research

Activities

Structural arrangement of atoms in materials and the processes that govern their stability under ambient and extreme pressure (P) and temperature (T) conditions are important in crystal chemistry.  Structural changes under varied conditions create different responses to physical, mechanical, thermodynamic, elastic, and chemical properties.  My research is based on structural characterization of materials under different PT conditions using state-of-the-art experimental probes and applying the results to Mineral Physics and to environmental problems such as Carbon Capture and Storage (CCS).

Courses

Course number Course title Semester
GLGY 313 Mineralogy Fall
ERTH 209 Introduction To Earth Fall
GLGY 523 Advanced Mineralogy Winter
GLGY 623 Modern Diffraction and Scattering Techniques Winter
ERTH 299 Gemology: The Science of the Glitter Winter

Awards

  • Young Scientist Award, Mineralogical Association of Canada. 2012
  • Department of Geoscience Research Excellence Award, University of Calgary. 2010
  • New Faculty Award , Alberta Ingenuity. 2009

More Information

Selected Publications

  • Antao, S.M. (2025):  The average structure of a fine-grained nepheline to 900 °C: disorder of O1, Al-Si, and K-vacancy.  Minerals, 15,972.
  • Antao, S.M. (2024):  Al-Si order and chemical composition model across scapolite solid solutions with evidence from Rietveld structure refinements.  Minerals, 14, 812.
  • Hazrah, K.S. and Antao, S.M. (2022):  Apatite, Ca10(PO4)6(OH,F,Cl)2:  structural variations natural solid solutions, intergrowths, and zoning.  Minerals, 12, 527.
  • Umbsaar, D.A. and Antao, S.M. (2021):  Structural variations across wolframite solid solutions, (Fe,Mn)WO4.  Minerals, 12, 42.
  • Antao, S.M. and Hovis, G.L. (2021):  Structural variations across the nepheline (NaAlSiO4)-kalsilite (KAlSiO4) series.  American Mineralogist, 106, 801-811.
  • Zaman, M.M. and Antao, S.M. (2021):  A possible radiation-induced transition from Monazite-(Ce) to xenotime-(Y).  Minerals, 11, 16.
  • Antao, S.M. and Salvador, J.J. (2019):  Crystal chemistry of birefringent uvarovite solid solutions.  Minerals –Feature Papers in Crystallography, Mineralogy, and Physical Chemistry of Minerals, 9, 395.
  • Antao, S.M. and Nicholls, J.W. (2018):  Crystal chemistry of three volcanic K-rich nepheline samples from Oldoinyo Lengai, Tanzania and Mount Nyiragongo, Eastern Congo, Africa.  Frontiers in Earth Science-Earth and Planetary Materials, 6, 155.
  • Antao, S.M. and Dhaliwal, I. (2018):  Lead apatites:  structural variations among Pb5(BO4)3Cl with B = P (pyromorphite), As (mimetite), and V (vanadinite).  Journal of Synchrotron Radiation, 25, 214-221.
  • Antao, S.M. and Dhaliwal, I. (2017):  Growth oscillatory zoning in erythrite, ideally Co3(AsO4)2•8H2O:  structural variations in vivianite-group minerals.  Minerals, 7, 136.
  • Antao, S.M. and Cruickshank, L.A. (2016):  Two cubic phases in kimzeyite garnet from the type locality Magnet Cove, Arkansas.  Acta Crystallographica, B72, 846-854.
  • Antao, S.M. (2016):  Quartz:  structural and thermodynamic analyses across the α to β transition with origin of negative thermal expansion (NTE) in β quartz and calcite.  Acta Crystallographica, B72, 249-262.
  • Antao, S.M., Zaman, M., Gontijo, V.L., Camargo, E.S., and Marr, R.A. (2015):  Optical anisotropy, zoning, and coexistence of two cubic phases in andradites from Quebec and New York. Contributions to Mineralogy and Petrology, 169: 10.
  • Antao, S.M. and Round, S.A. (2014):  Crystal chemistry of birefringent spessartine.  Powder Diffraction, 29, 233-240.
  • Antao, S.M. and Klincker, A.M. (2013):  Origin of birefringence in andradite from Arizona, Madagascar, and Iran. Physics and Chemistry of Minerals, 40, 575-586.
  • Zaman, M., Schubert, M., and Antao, S.M. (2012):  Elevated radionuclide concentrations in heavy mineral-rich beach sands in the Cox’s Bazar region, Bangladesh, and related possible radiological effects.  Isotopes in Environmental & Health Studies, 48, 512-525.
  • Antao, S.M. (2012):  Structural trends for celestite (SrSO4), anglesite (PbSO4), and barite (BaSO4): confirmation of expected variations within the SO4 groups.  American Mineralogist, 97, 661-665.
  • Antao, S.M. (2012):  The crystal structure of a biogenic aragonite from the nacre of an ammonite shell.  Royal Society of Chemistry (RSC) Advances, 2, 526-530.
  • Skinner, L.B., Benmore, C.J., Antao, S.M., et al. (2012):  Structural changes in vitreous GeSe4 under pressure.  Journal of Physical Chemistry, C 116, 2212-2217.
  • Antao, S.M. (2011):  Crystal-structure analysis of four mineral samples of anhydrite, CaSO4, using synchrotron high-resolution powder X-ray diffraction data.  Powder Diffraction, 26, 326-330.
  • Antao, S.M. et al. (2010):  Temperature dependence of the structural parameters in the transformation of aragonite to calcite, as determined from in situ synchrotron powder X-ray diffraction data.  Canadian Mineralogist, 48, 1225-1236.
  • Ehm, L., Michel, F.M., Antao, S.M., et al. (2009):  Structural changes in nanocrystalline mackinawite (FeS) at high pressure.  Journal of Applied Crystallography, 42, 15-21.
  • Antao, S.M. et al. (2009):  In situ study of the R-3c→R-3m orientational disorder in calcite, CaCO3.  Physics and Chemistry of Minerals, 36, 159-169.
  • Antao, S.M. et al. (2008):  State-of-the-art high-resolution powder X-ray diffraction (HRPXRD) illustrated with Rietveld structure refinement of quartz, sodalite, tremolite, and meionite.  Canadian Mineralogist, 46, 1501-1509.
  • Antao, S.M. et al. (2008):  The R-3c→R-3m transition in nitratine, NaNO3, and implications for calcite, CaCO3.  Physics and Chemistry of minerals, 35, 545-557.
  • Wang, J., Toby, B.H., Lee, P.L., Ribaud, L., Antao, S.M. et al. (2008):  A dedicated powder diffraction beamline at the advanced photon source:  commissioning and early operational results.  Review of Scientific Instruments, 79, 085105.
  • Lee, P.L., Shu, D., Ramanathan, M., Preissner, C., Wang, J., Beno, M.A., Von Dreele, R.B., Ribaud, L., Kurtz, C., Antao, S.M. et al. (2008):  A twelve-analyzer detector system for high-resolution powder diffraction.  Journal of Synchrotron Radiation, 15, 427-432.
  • Moyer, Jr. R. O., Antao, S.M. et al.  (2008):  Neutron Powder Diffraction and Solid State Deuterium NMR Studies of Ca2RuD6 and the stability of transition metal hexahydride salts.  Journal of Alloys and Compounds, 460, 138-141.
  • Antao, S.M. et al. (2008):  Network rigidity in GeSe2 glass at high pressure.  Physical Review Letters, 100, 115501.

 

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