Cyclic caldera collapse: Piston or piecemeal subsidence? Field and experimental evidence (2002)

Research Article| February 01, 2002 Cyclic caldera collapse: Piston or piecemeal subsidence? Field and experimental evidence V.R. Troll; V.R. Troll 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany Search for other works by this author on: GSW Google Scholar T.R. Walter; T.R. Walter 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany Search for other works by this author on: GSW Google Scholar H.-U. Schmincke H.-U. Schmincke 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany Search for other works by this author on: GSW Google Scholar Author and Article Information V.R. Troll 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany T.R. Walter 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany H.-U. Schmincke 1Abteilung für Vulkanologie and Petrologie, GEOMAR Forschungszentrum, Wischhofstrasse 1-3, 24148 Kiel, Germany Publisher: Geological Society of America Received: 19 Jul 2001 Revision Received: 08 Oct 2001 Accepted: 24 Oct 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (2): 135–138. https://doi.org/10.1130/0091-7613(2002)030<0135:CCCPOP>2.0.CO;2 Article history Received: 19 Jul 2001 Revision Received: 08 Oct 2001 Accepted: 24 Oct 2001 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation V.R. Troll, T.R. Walter, H.-U. Schmincke; Cyclic caldera collapse: Piston or piecemeal subsidence? Field and experimental evidence. Geology 2002;; 30 (2): 135–138. doi: https://doi.org/10.1130/0091-7613(2002)030<0135:CCCPOP>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Many multicycle caldera volcanoes display a complex extracaldera fault system genetically linked to caldera evolution. On Gran Canaria (Canary Islands), the Miocene Tejeda caldera was filled by ignimbrites and epiclastic sediments and intruded by syenites and a major cone-sheet swarm, obscuring intracaldera structural relations. Extracaldera radial and circumferential faults and dikes are well exposed. We used field data and experiments scaled to the island of Gran Canaria to clarify the poorly understood structural, temporal, and genetic relationship of peripheral faults to the central caldera. The experimental setup comprises a cone of medium-grained sand in which a rubber balloon was repeatedly inflated and deflated. Balloon inflation resulted in updoming and a dominantly radial fault pattern, whereas balloon deflation caused piecemeal caldera collapse and a concentric peripheral fault arrangement on the edifice flanks. A complex interplay of repeated inflation and deflation cycles of the experimental magma chamber is found to explain the peripheral fault system of the Tejeda caldera on Gran Canaria and offers insight into the structure of the caldera floor and the mechanisms acting in multicycle caldera volcanoes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.