caldera cycle

GLOSSARY OF VOLCANIC TERMS
A commonly observed evolutionary sequence recognized in many caldera complexes. From oldest to youngest, the seven stages of the caldera cycle are: 1) regional tumescence and generation of ring fractures; 2) ignimbrite (pyroclastic) eruption(s); 3) caldera collapse; 4) pre-resurgent volcanism and intra-caldera sedimentation; 5) resurgent doming; 6) major ring fracture volcanism; and 7) terminal fumarolic and/or hot spring activity.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

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