Mineralogy and Geochemistry of Garnet Rhyolites, Black Hills, South Dakota
| dc.contributor.author | Hooper, Robert L. | |
| dc.contributor.author | Lair, Rachel | |
| dc.date.accessioned | 2017-11-09T18:31:19Z | |
| dc.date.available | 2017-11-09T18:31:19Z | |
| dc.date.issued | 2017-11-09T18:31:19Z | |
| dc.description | Color poster with text, images, graphs, charts, and maps. | en |
| dc.description.abstract | This study is looking at the mineralogy of the garnet bearing rhyolites to determine the origin of the garnets and other associated minerals. Thin sections are being examined using SEM/EDS. Initial results suggest the garnets are igneous phenocrysts, they are free of inclusions of metamorphic minerals, and are associated with ferro-knebelite (Mn-olivine), quartz, fluorine-rich biotite, anorthoclase, plagioclase (~An 30) and thorium-rich monazites. Continued study of this suite of rocks should allow us to determine more about the igneous history of these rhyolite intrusions. | en |
| dc.description.sponsorship | University of Wisconsin--Eau Claire Office of Research and Sponsored Programs | en |
| dc.identifier.uri | http://digital.library.wisc.edu/1793/77237 | |
| dc.language.iso | en_US | en |
| dc.relation.ispartofseries | USGZE AS589; | |
| dc.subject | Black Hills (South Dakota) | en |
| dc.subject | Igneous garnets | en |
| dc.subject | Rhyolites | en |
| dc.subject | Mineralogy | en |
| dc.subject | Geochemistry | en |
| dc.subject | Posters | en |
| dc.title | Mineralogy and Geochemistry of Garnet Rhyolites, Black Hills, South Dakota | en |
| dc.type | Presentation | en |