Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models
Color poster with text, images, and graphs. The dramatic contrast in the geochemical evolution of tholeiitic and calc-alkaline magmatic systems has remained an enigma since their original characterization nearly a century ago. Recently, two new models that describe the evolution of each magma type h...
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ftunivwiscon:oai:minds.wisconsin.edu:1793/75497 2023-05-15T16:29:30+02:00 Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models Ihinger, Phillip D. Brinza, Eric M. 2016-10-21T15:36:50Z application/pdf http://digital.library.wisc.edu/1793/75497 en_US eng USGZE AS589; http://digital.library.wisc.edu/1793/75497 Posters Calc-alkaline Magma Tholeiitic Presentation 2016 ftunivwiscon 2022-04-13T19:15:35Z Color poster with text, images, and graphs. The dramatic contrast in the geochemical evolution of tholeiitic and calc-alkaline magmatic systems has remained an enigma since their original characterization nearly a century ago. Recently, two new models that describe the evolution of each magma type have been developed that explain the enigmatic features observed in the classic intrusions of each magma type (Ihinger, 2015). The long-standing paradoxical observations within the tholeiitic Skaergaard (Greenland) and the calc-alkaline Shonkin Sag (Montana) intrusions are now understood to represent magma chambers wherein evolved felsic liquids have buoyantly segregated from a host residual crystal mush. Here, we present our efforts using Adobe Illustrator to schematically illustrate the processes that lead to the geochemical and textural variations observed in the crystallized intrusions. We support these illustrations with actual thin-section photomicrographs taken from the intrusions. Our images document the evolving geochemistry of both residual liquid and complementary crystal phases throughout the duration of crystallization. Our representations capture the details of the chemical evolution and show the roles that the processes of crystallization, liquid immiscibility, and compaction play in the development of each magma intrusion. University of Wisconsin--Eau Claire Office of Research and Sponsored Programs Conference Object Greenland University of Wisconsin: Digital Collections Greenland |
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Open Polar |
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University of Wisconsin: Digital Collections |
op_collection_id |
ftunivwiscon |
language |
English |
topic |
Posters Calc-alkaline Magma Tholeiitic |
spellingShingle |
Posters Calc-alkaline Magma Tholeiitic Ihinger, Phillip D. Brinza, Eric M. Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
topic_facet |
Posters Calc-alkaline Magma Tholeiitic |
description |
Color poster with text, images, and graphs. The dramatic contrast in the geochemical evolution of tholeiitic and calc-alkaline magmatic systems has remained an enigma since their original characterization nearly a century ago. Recently, two new models that describe the evolution of each magma type have been developed that explain the enigmatic features observed in the classic intrusions of each magma type (Ihinger, 2015). The long-standing paradoxical observations within the tholeiitic Skaergaard (Greenland) and the calc-alkaline Shonkin Sag (Montana) intrusions are now understood to represent magma chambers wherein evolved felsic liquids have buoyantly segregated from a host residual crystal mush. Here, we present our efforts using Adobe Illustrator to schematically illustrate the processes that lead to the geochemical and textural variations observed in the crystallized intrusions. We support these illustrations with actual thin-section photomicrographs taken from the intrusions. Our images document the evolving geochemistry of both residual liquid and complementary crystal phases throughout the duration of crystallization. Our representations capture the details of the chemical evolution and show the roles that the processes of crystallization, liquid immiscibility, and compaction play in the development of each magma intrusion. University of Wisconsin--Eau Claire Office of Research and Sponsored Programs |
format |
Conference Object |
author |
Ihinger, Phillip D. Brinza, Eric M. |
author_facet |
Ihinger, Phillip D. Brinza, Eric M. |
author_sort |
Ihinger, Phillip D. |
title |
Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
title_short |
Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
title_full |
Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
title_fullStr |
Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
title_full_unstemmed |
Schematic Illustrations of Evolving Tholeiitic and Calc-Alkaline Magmatic Systems: New Models |
title_sort |
schematic illustrations of evolving tholeiitic and calc-alkaline magmatic systems: new models |
publishDate |
2016 |
url |
http://digital.library.wisc.edu/1793/75497 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
USGZE AS589; http://digital.library.wisc.edu/1793/75497 |
_version_ |
1766019201520107520 |