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Recent Articles in Mineral Physics
Crystal Structure And Al/Si Cation Ordering In "Fassaite": A Combined Single Crystal, 27al And 29si Nmr Study, Monika M. Haring 
Western University
Crystal Structure And Al/Si Cation Ordering In "Fassaite": A Combined Single Crystal, 27al And 29si Nmr Study, Monika M. Haring
Electronic Thesis and Dissertation Repository
Al-,Ti-rich diopside, referred to herein as fassaite, occurs in both terrestrial and extraterrestrial environments. The composition of fassaite, Ca(Mg,Al)(Si,Al)2O6, makes it ideal for Al/Si cation ordering studies. In this study, crystal XRD, 27Al and 29Si MAS NMR as well as 27Al 3QMAS NMR is used to study cation ordering in extraterrestrial fassaite from Allende CAIs and a terrestrial analogue from Fassa Valley Italy. From 27Al and 29Si spectroscopy, fassaite from Allende CAIs is found to have more local Al/Si cation ordering than terrestrial Fassaite. Both terrestrial ...
Strength, Elasticity And Phase Transition Study On Nacl And Mgo-Nacl Mixture To Mantle Pressures, Zhongying MI Western University
Strength, Elasticity And Phase Transition Study On Nacl And Mgo-Nacl Mixture To Mantle Pressures, Zhongying Mi
Electronic Thesis and Dissertation Repository
Rheological properties of the Earth control most of the important geological processes, such as mantle convection, plate tectonics, earthquakes and nature of thermal evolution. Most parts of the Earth consist of multi-phase polycrystalline aggregates with various composition and compressibility. Therefore, deformation studies on multi-phase materials are important to understand the rheological properties and convection of the Earth. NaCl and MgO with large contrast in elastic properties are excellent analogue materials for modelling the Earth that is generally made of both strong and weak materials. In addition, NaCl and MgO are widely used as pressure transmitting medium and pressure calibration standard ...
Raman Mapping Of Mars Relevant Minerals Using Multiple Excitation Wavelenghts, Victoria Campbell, William Abbey 
California Polytechnic State University
Raman Mapping Of Mars Relevant Minerals Using Multiple Excitation Wavelenghts, Victoria Campbell, William Abbey
STEM Teacher and Researcher (STAR) Program Posters
The purpose of this project is to map Mars relevant minerals using the Raman instrument Horiba LabRam Raman. The Raman spectrometer is a non-invasive sampling technique used to identify mineral composition of various compositions by measuring the “Raman Shift” of each mineral. This was accomplished by using a green (532nm) laser which acted as a monochromatic light source. This source was absorbed by the sample and reemitted. The frequency of the reemitted photons are then shifted up or down in comparison with original frequency, which is referred to as the ‘Raman Effect’. The samples with shorter wavelengths produced a stronger ...
Electric Currents Due To Stress-Activated Positive Hole Charge Carriers In Ice, Cary T. Keller P.E., Friedemann T. Freund, Dale P. Cruikshank California Polytechnic State University
Electric Currents Due To Stress-Activated Positive Hole Charge Carriers In Ice, Cary T. Keller P.E., Friedemann T. Freund, Dale P. Cruikshank
STEM Teacher and Researcher (STAR) Program Posters
Jupiter’s satellite Europa, whose surface is composed of ice with a possible water ocean beneath, could conceivably serve as an abode for extraterrestrial life. This and other icy celestial bodies may contain organic macromolecular solid material that is produced when surface ices are exposed to ultraviolet radiation and/or electrical energy. Tidal and tectonic stresses or meteorite impacts in icy crusts may produce electrical discharges, which would provide the energy for in-situ synthesis of the organic solids. This electrical energy can be provided by positive hole charge carrier activation. Positive holes exhibit properties such as the ability to flow ...
Popular Institutions
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Popular Authors
Michal Filippi
University of South Florida
Monika Haring
Western University
Salirian Claff
Southern Cross University
Zhongying MI
Western University
Georgios Lazaridis
University of South Florida
Vasilios Melfos
University of South Florida
Bryan Crowell
University of South Florida
William White
University of South Florida
Guglielmo Caddeo
University of South Florida
Joe Kearns
University of South Florida
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Popular Articles
Raman Spectroscopic Study Of Solid Solution Spinel Oxides
Secondary Halite Deposits In The Iranian Salt Karst: General Description And Origin, Michal Filippi
Crystal Structure And Al/Si Cation Ordering In "Fassaite": A Combined Single Crystal, 27al And 29si Nmr Study, Monika Haring
Geochemical Partitioning Of Iron And Trace Elements In Acid Sulfate Soils, Salirian Claff
Strength, Elasticity And Phase Transition Study On Nacl And Mgo-Nacl Mixture To Mantle Pressures, Zhongying MI
The First Cave Occurrence Of Orpiment (As₂S₃) From The Sulfuric Acid Caves Of Aghia Paraskevi (Kassandra Peninsula, N. Greece), Vasilios Melfos, Georgios Lazaridis
Measurement Of Luminescent Banding In Speleothems: Some Techniques And Limitations, William White, Bryan Crowell
High Pressure Phase Transistions In The Lanthanide Sesquioxides
Trace Element And Stable Isotope Data From A Flowstone In A Natural Cave Of The Mining District Of Sw Sardinia (Italy): Evidence For Zn²⁺-Induced Aragonite Precipitation In Comparatively Wet Climatic Conditions, Guglielmo Caddeo, Jo De Waele, Loren Railsback, Franco Frau
Revisiting Three Minerals From Cioclovina Cave (Romania), B Onac, Joe Kearns, Nathan Collins, Radu Breban, Herta Effenberger
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