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Skip to Search Results- 1Blinova, Alexandra I
- 1Gilmour, Cosette
- 1Hamilton, Jarret
- 1Holt, Miranda C
- 1Hong, Jason K
- 1MacLagan, Ebberly
- 2Aqueous alteration
- 2Carbonaceous chondrites
- 2Geochronology
- 2Meteorites
- 2Tagish Lake meteorite
- 1Alteration
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Constraining the Source Craters of the Martian Meteorites: Shock Analysis and Geologic Mapping of Candidate Craters
DownloadSpring 2021
The ~143 martian meteorites serve as the only rock samples from Mars that are presently available for study in a laboratory setting. These predominantly igneous samples are sourced from the near-surface units adjacent to craters formed during random, hypervelocity impacts of asteroids on the...
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Fall 2018
The Steen River impact structure (SRIS) is a buried, complex crater located in NW Alberta, Canada. It was discovered in the mid 1900’s and was initially thought to be an endogenic igneous intrusion. With the growth of impact studies on Earth and other planets, the SRIS was recognized as such in...
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Dating Magmatism on Mars: Application of In-Situ and Microsampling Techniques for Shergottite Geochronology
DownloadFall 2022
Establishing an absolute time scale of Mars is critical to understanding the planet’s geological evolution. Currently, martian meteorites are the only samples of the planet available for radiometric geochronology analysis in terrestrial laboratory settings. The record of known martian absolute...
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Detailed examination of iron meteorites and impact generated carbonaceous spherules associated with the Whitecourt Meteorite Impact Crater, Alberta, Canada
DownloadSpring 2014
The impact of an iron meteorite <1100 years ago near Whitecourt, Alberta, Canada formed a crater 36 m in diameter. The impacting body fragmented upon impact, scattering thousands of shrapnel-shaped fragments around the crater. Internal examination of the fragments reveal that the mineralogy is...
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Economic significance of platinum group elements and water in asteroids: Insights from chondritic meteorites
DownloadFall 2017
Asteroids are considered to be rich sources of precious metals, water, and essential volatiles for life. Such a consideration has been derived from the study of meteorites and asteroid reflectance spectra which have both been vital to our understanding of asteroid compositions. The vast amount of...
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Spring 2012
The recent discovery of the mineral jarosite (KFe3(OH)6(SO4)2) in the MIL 03346 martian meteorite is important because jarosite forms from acidic, oxidizing waters. Jarosite occurrences in the MIL 03346 martian meteorite were studied to characterize the mineral in-situ. Backscattered electron...
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Sulfur Speciation and Curation Considerations for the Carbonaceous Chondrite Tagish Lake and Other Meteorites
DownloadSpring 2023
Carbonaceous chondrites contain significant abundances of sulfur components such as sulfide, sulfate, elemental sulfur (S0), and organosulfur compounds. These are significant because questions remain regarding the role of S in the origin of life. Chondrites and all other meteorites are out of...
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The Prebiotic Synthesis of Soluble Organic Matter in Carbonaceous Chondrites and the Influence of Asteroidal Aqueous Alteration
DownloadSpring 2018
Carbonaceous chondrite meteorites are derived from primitive asteroids in the solar system and often contain prebiotic organic compounds including amino acids, carboxylic acids, nucleobases, and smaller precursor molecules. These soluble organic compounds, synthesized via non-biological chemical...
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Tracing Organic Contamination from Collection to Curation: Contamination Mitigation of Meteorites and Implications for Advanced Curation Methods of Astromaterials
DownloadFall 2022
Meteorites are the most primitive materials in the solar system and can provide important information about the early earth, planetary processes, and possibly yield insights to the building blocks of life. All meteoritic astromaterials are exposed to both organic compound and microbial...
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Understanding the alteration of the Tagish Lake meteorite through mineralogy, geochemistry and oxygen isotopes
DownloadFall 2013
Our understanding of the origin and formation of the various components of meteorites, and ultimately understanding the formation of the early Solar System, comes from our knowledge of the asteroidal alteration processes and modifications that such processes induce on these components. The...