V035
MSA and AGU at 100 years: A Centennial Celebration of Mineralogical Advances that have Improved our Understanding of Mantle Geodynamics

Session ID#: 81770

Session Description:
The Mineralogical Society of America (MSA) and AGU were founded in 1919. The session will celebrate this historical landmark by highlighting the remarkable advances that studies of minerals have made towards understanding geodynamic processes in the mantle on scales from small to large. The theory of plate tectonics, seismic tomography, high pressure mineral physics, and the availability of superdeep samples as inclusions in diamonds have given mineralogy a relevance to deep mantle studies that was completely absent in 1919. Current and future research on mantle minerals using observations, analyses of natural samples, and experiments to examine phase transformations in the subducted slab, melt/volatile transport in the mantle wedge, recycling into the mantle transition zone, mantle convection, and material at the core mantle boundary will comprise this session. Specific topics could include seismic properties, nanocrystalline structure, anisotropy, P-T stability and mantle petrology, volatile carrying capacity, oxidation state, and trace element partitioning.
Co-Organized:
  • DI - Study of the Earth's Deep Interior
Co-Sponsor(s):
  • MSA: Mineralogical Society of America -
Index Terms:

1025 Composition of the mantle [GEOCHEMISTRY]
1042 Mineral and crystal chemistry [GEOCHEMISTRY]
3621 Mantle processes [MINERALOGY AND PETROLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]

Primary Convener:  Steven B Shirey, Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States
Conveners:  Steven D Jacobsen, Northwestern University, Department of Earth and Planetary Sciences, Evanston, IL, United States, Michael J Walter, Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States and Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom
Primary Liaison:  Steven B Shirey, Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States
 
Characteristics of Cr-spinel in mantle peridotite-chromitite from Manipur Ophiolite Complex, India: Implication for magmatic processes in mantle and discrimination of tectonic settings. (488467)
Kshetrimayum Premi1, Amit Kumar Sen1 and Athokpham Krishnakanta Singh2, (1)Indian Institute of Technology Roorkee, Department of Earth Sciences, Roorkee, India, (2)Wadia Institute of Himalayan Geology, Dehradun, India
 
Tiny diamonds from ultrahigh pressure metamorphic rocks for understanding of mantle geodynamics (500592)
Larissa Dobrzhinetskaya, University of California Riverside, Riverside, CA, United States, Richard Wirth, GeoForschungsZentrum Postsdam, Postdam, Germany, Earl F O'Bannon III, Lawrence Livermore National Laboratory, Livermore, CA, United States and Hiroshika Sumino, The University of Tokyo, Graduate School of Art and Sciences, Tokyo, Japan
 
Characteristics of Titanium-bearing Inclusions Found in Corundum of the Luobusa Podiform Chromitite, Tibet (501205)
Xiangzhen Xu, Institute of Geology,CAGS, Beijing, China, Jingsui Yang, Chinese Academy of Geological Sciences, Institute of Geology, Beijing, China and Fahui Xiong, CARMA, State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology of CAGS, Beijing, China
 
The Role of Compositionally-Dependent Phase Transitions in Slab Deformation and Trench Motion (Invited) (508647)
Magali I Billen, University of California Davis, Davis, CA, United States
 
Deep Focus Earthquakes, Deep Slab Fluids, and Superdeep Diamonds (522475)
Steven B Shirey1, Lara S Wagner1, Michael J Walter2, Peter E van Keken1 and D. Graham Pearson3, (1)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States, (2)Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States, (3)University of Alberta, Earth & Atmospheric Sciences, Edmonton, AB, Canada
 
The geodynamic view offered by diamonds: a unique record of plate tectonic recycling (Invited) (560297)
D. Graham Pearson, University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada, Margo Elaine Regier, University of Alberta, Earth & Atmospheric Sciences, Edmonton, Canada, Thomas Stachel, Univ Alberta, Edmonton, AB, Canada and Jeff W Harris, University of Glasgow, School of Geographical and Earth Sciences,, Glasgow, United Kingdom
 
High Pressure Polymorphs in Katol L6 Chondrite: Deciphering Thermal History and Shock Conditions (563986)
Kishan Tiwari1, Sujoy Ghosh1, Masaaki Miyahara2 and Dwijesh Ray3, (1)Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India, (2)Hiroshima University, Higashi-Hiroshima, Japan, (3)Physical Research Laboratory, Planetary Sciences Division, Ahmedabad, India
 
The accessory minerals of the alkaline granitoids of Ninakri and Okrouyo (Ivory Coast, West African Craton): residence of REE, Y, Th and U (581791)
Brice Roland Kouassi, Abidjan, ABIDJAN, CÔTE D'IVOIRE, Alain Nicaise Kouamelan Sr, Felix Houphouet Boigny University, Petrology-Metallogeny, Abidjan, Côte D'ivoire and Anne-Sylvie André-Mayer, Lorraine University, Nancy, France
 
Exsolution of Pyrope-Grossular Garnet at 8 GPa (587334)
Wei DU, Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, China
See more of: Volcanology, Geochemistry and Petrology
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