Page 8 - Caldera Volcanism Analysis, Modelling and Response

Contents vii

4. Discussion 299
5. Comparison to Nature: Guidelines 302
6. Towards a New Caldera Evolution Scheme 305
7. Conclusions 307
Acknowledgements 308
References 308

8. Magma-Chamber Geometry, Fluid Transport, Local Stresses and Rock
Behaviour During Collapse Caldera Formation 313
Agust Gudmundsson
1. Introduction 314
2. Collapse Caldera Structures 317
3. Geometry of the Magma Chamber 324
4. Behaviour of Crustal Rocks 326
5. Magma-Chamber Rupture and Fluid Transport
Along a Dyke 329
6. Stress Fields Triggering Ring-Fault Initiation 332
7. Discussion 340
8. Conclusions 344
Acknowledgements 345
References 345

9. Facilitating Dike Intrusions into Ring Faults 351
Thomas R. Walter
1. Introduction 352
2. Modeling Method 355
3. Results 356
4. Discussion 367
5. Conclusion 371
Acknowledgements 371
References 371
10. A New Uplift Episode at Campi Flegrei Caldera (Southern Italy):
Implications for Unrest Interpretation and
Eruption Hazard Evaluation 375
Claudia Troise, Giuseppe De Natale, Folco Pingue,
Umberto Tammaro, Prospero De Martino, Francesco Obrizzo and
Enzo Boschi
1. Introduction 376
2. Recent Ground Deformation Data at
Campi Flegrei Caldera 379
3. Displacement Shapes and Maximum Vertical to
Horizontal Ratios 384
4. Discussion and Conclusion 388
Acknowledgments 390
References 390