Bi-directional rifting of the Transantarctic Mountains during the Jurassic: stress state determined by the pattern of dike emplacement
The orientation patterns of Jurassic Ferrar Dolerite dikes in the Transantarctic Mountains were analyzed in this study. The dikes display a consistent pattern throughout the South Victoria Land Sector of the Transantartic Mountains. The typical pattern displayed is a north-south set of dikes and an...
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| Format: | Thesis |
| Language: | English |
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The Ohio State University
1990
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| Online Access: | http://hdl.handle.net/1811/80154 |
| Summary: | The orientation patterns of Jurassic Ferrar Dolerite dikes in the Transantarctic Mountains were analyzed in this study. The dikes display a consistent pattern throughout the South Victoria Land Sector of the Transantartic Mountains. The typical pattern displayed is a north-south set of dikes and an east-west set of dikes. This is interpreted to represent 2 perpendicular extensional directions. During the Jurassic, the least principal stress was east-west , the intermediate principal stress was north-south, and the greatest principal stress was vertical. No embargo |
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