Stress fields generating ring faults in volcanoes

• Published in: Geophysical research letters Vol. 24; no. 13; pp. 1559 - 1562
• Main Authors: Gudmundsson, Agust, Marti, Joan, Turon, Elisenda
• Format: Journal Article
• Language: English
• Published: Washington, DC Blackwell Publishing Ltd 01.07.1997; American Geophysical Union
• Subjects: Crystalline rocks; Earth sciences; Earth, ocean, space; Exact sciences and technology; Igneous and metamorphic rocks petrology, volcanic processes, magmas; Tectonics. Structural geology. Plate tectonics; models; ring structures; eruptions; volcanoes; boundary element methods; overpressure; faults; magma chambers; genesis; shear stress; calderas; sills; subsidence; geometry; stress fields

Ring faults in volcanoes have been recognized for a long time, but their mechanics of formation is still poorly understood. While the subsidence on a ring fault during a large eruption from the associated chamber is easily understood, the initiation of the fault itself has been difficult to explain....