Experimental studies of melting and crystallization processes in planetary interiors
Thesis (Ph. D.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2011.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2012
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| Online Access: | http://hdl.handle.net/1721.1/69467 |
| _version_ | 1826203606859120640 |
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| author | Krawczynski, Michael James |
| author2 | Timothy L. Grove. |
| author_facet | Timothy L. Grove. Krawczynski, Michael James |
| author_sort | Krawczynski, Michael James |
| collection | MIT |
| description | Thesis (Ph. D.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2011. |
| first_indexed | 2024-09-23T12:39:57Z |
| format | Thesis |
| id | mit-1721.1/69467 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T12:39:57Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/694672022-01-14T19:31:19Z Experimental studies of melting and crystallization processes in planetary interiors Krawczynski, Michael James Timothy L. Grove. Woods Hole Oceanographic Institution. Joint Program in Oceanography/Applied Ocean Science and Engineering Woods Hole Oceanographic Institution Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Joint Program in Oceanography/Applied Ocean Science and Engineering. Earth, Atmospheric, and Planetary Sciences. Woods Hole Oceanographic Institution. Crystallization, Water of Magmas Thesis (Ph. D.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2011. Cataloged from PDF version of thesis. Includes bibliographical references (p. 191-202). Melting and crystallization processes on the Earth and Moon are explored in this thesis, and the topics of melt generation, transport, and crystallization are discussed in three distinct geologic environments: the Moon's mantle, the Greenland ice sheet, and the Earth's crust. Experiments have been conducted to determine the conditions of origin for two high-titanium magmas from the Moon. The lunar experiments (Chapter 2) were designed to explore the effects of variable oxygen fugacity (fo₂) on the high pressure and high temperature crystallization of olivine and orthopyroxene in high-Ti magmas. The results of these experiments showed that the source regions for the high-Ti lunar magmas are distributed both laterally and vertically within the lunar mantle, and that it is critical to estimate the pre-eruptive oxygen fugacity in order to determine true depth of origin for these magmas within the lunar mantle. Chapter 3 models the behavior of water flow through the Greenland ice sheet driven by hydrofracture of water through ice. The results show that melt water in the ablation zone of Greenland has almost immediate access to the base of the ice sheet in areas with up two kilometers of ice. Chapter 4 is an experimental study of two hydrous high-silica mantle melts from the Mt. Shasta, CA region. Crystallization is simulated at H₂O saturated conditions at all crustal depths, and a new geobarometer-hygrometer based on amphibole magnesium number is calibrated. In Chapter 5 I use the new barometer to study a suite of mafic enclaves from the Mt. Shasta region, and apply it to amphiboles in these enclaves. Evidence for pre-eruptive H₂O contents of up to 14 wt% is presented, and bulk chemical analyses of the inclusions are used to show that extensive magma mixing has occurred at all crustal depths up to 35 km beneath Mt. Shasta. by Michael James Krawczynski. Ph.D. 2012-02-29T17:57:31Z 2012-02-29T17:57:31Z 2011 2011 Thesis http://hdl.handle.net/1721.1/69467 775348151 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 202 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Joint Program in Oceanography/Applied Ocean Science and Engineering. Earth, Atmospheric, and Planetary Sciences. Woods Hole Oceanographic Institution. Crystallization, Water of Magmas Krawczynski, Michael James Experimental studies of melting and crystallization processes in planetary interiors |
| title | Experimental studies of melting and crystallization processes in planetary interiors |
| title_full | Experimental studies of melting and crystallization processes in planetary interiors |
| title_fullStr | Experimental studies of melting and crystallization processes in planetary interiors |
| title_full_unstemmed | Experimental studies of melting and crystallization processes in planetary interiors |
| title_short | Experimental studies of melting and crystallization processes in planetary interiors |
| title_sort | experimental studies of melting and crystallization processes in planetary interiors |
| topic | Joint Program in Oceanography/Applied Ocean Science and Engineering. Earth, Atmospheric, and Planetary Sciences. Woods Hole Oceanographic Institution. Crystallization, Water of Magmas |
| url | http://hdl.handle.net/1721.1/69467 |
| work_keys_str_mv | AT krawczynskimichaeljames experimentalstudiesofmeltingandcrystallizationprocessesinplanetaryinteriors |