The Olympic-Wallowa Lineament, Hite Fault System, and Columbia River Basalt Group Stratigraphy in northeast Umatilla County, Oregon

By

TABLE OF CONTENTS

• Acknowledgements
• Abstract
• List of Tables
• List of Figures
• List of Maps
• CHAPTER
1. Introduction
• Geologic Setting and Previous Work
2. Basalt Flow Stratigraphy
• Grande Ronde Flows
• Post-Grande Ronde Flows
• Feeder Dikes
3. Structure
• Faults Coincident with the Olympic-Wallowa Lineament
• The Hite Fault System
• Blue Mountains Uplift
• Graben Related Faults
• Shallowly Dipping Faults
• Wanapum Basalt Feeder Dikes
• Interaction Between the Major Fault Systems
• Discussion
4. Conclusions
• References Cited
• Appendices
1. Descriptions of the five principal stratigraphic sections
2. Chemical analyses by XRF of basalt flows and dikes
3. Slickenside and fault plane data
4. Procedure for field use of the portable fluxgate magnetometer
5. Road log for Tiger Creek Road with fault outcrop descriptions
6. Fault outcrop descriptions for Maps 3 and 4

Abstract of poster presentation derived from this thesis

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Copyright © 1995-1997 Stephen C. Kuehn