IR Spectroscopy of Olivine from Kimberlitic Magma
| dc.contributor.advisor | Ihinger, Phillip D. | |
| dc.contributor.author | Hughes, Cameron A. | |
| dc.date.accessioned | 2012-11-20T17:50:30Z | |
| dc.date.available | 2012-11-20T17:50:30Z | |
| dc.date.issued | 2012-04 | |
| dc.description | Color poster with text, diagrams, images, photographs, and graphs. | en |
| dc.description.abstract | Olivine, the most common mineral in the upper mantle, represents a major component in most mafic magmas. Olivine crystals derived from mantle xenoliths contain hydroxyl impurities and are thought to represent the major reservoir for water in the high-pressure mantle environment. However, olivine crystals sampled from tholeiitic basalts do not contain measurable water. Non-stoichiometric water is observed in a variety of nominally anhydrous crustal minerals, such as quartz and feldspar. Incorporation of water into these minerals is generally attributed to kinetic effects associated with non-equilibrium growth. Silica-poor magmas are typically volatile-rich and have extremely low viscosities promoting rapid crystal growth during transport and emplacement. The purpose of this study was to test the hypothesis that olivine crystals formed in silica-undersaturated, water-rich magmas incorporate measurable hydrous impurities due to their rapid growth. | en |
| dc.description.sponsorship | University of Wisconsin--Eau Claire Office of Research and Sponsored Programs. | en |
| dc.identifier.uri | http://digital.library.wisc.edu/1793/63362 | |
| dc.language.iso | en_US | en |
| dc.relation.ispartofseries | USGZE AS589 | en |
| dc.subject | Spectrum analysis | en |
| dc.subject | Olivine | en |
| dc.subject | Magmas | en |
| dc.subject | Posters | en |
| dc.title | IR Spectroscopy of Olivine from Kimberlitic Magma | en |
| dc.type | Presentation | en |