sgr ms thesis - University of Maine

TABLE OF CONTENTS
ACKNOWLEDGEMENTS ..................................................................................... iv
LIST OF FIGURES ............................................................................................... ix
LIST OF TABLES ................................................................................................. xi
Chapter
1. INTRODUCTION ............................................................................................. 1
2. GEOLOGIC SETTING .................................................................................... 4
2.1. Regional Geology: The Coastal Maine Magmatic Province ...................... 4
2.2. Cadillac Mountain Intrusive Complex ........................................................ 4
2.3. Bar Harbor Formation ............................................................................... 7
2.4. Shatter Zone ............................................................................................. 8
3. PHYSICAL DESCRIPTION OF SUBVOLCANIC SYSTEMS ........................ 10
3.1. Magma Plumbing Systems ..................................................................... 11
3.1.1. Generation and Transport of Magma ............................................. 11
3.1.2. Emplacement and Growth of Magma Chambers ........................... 13
3.2. Subsurface Response to Volcanic Eruption ............................................ 15
3.2.1. The Mechanical Behavior of Wall Rock as a Control for
Eruption Behavior: from Magma Storage to Volcanic Eruption ..... 16
3.2.2. Volcanic Triggers and Chamber Rupture in a Rigid Reservoir ...... 19
3.2.3. Evidence for Wall Rock Readjustment in Modern Volcanoes ........ 23
v