Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5783781 | Journal of Volcanology and Geothermal Research | 2016 | 39 Pages |
Abstract
The submerged caldera depression accommodates post-eruption sediments. Within this high-resolution archive, two major unconformities developed at ~Â 8.6Â ka and 5Â ka, when resurgence-related uplift exceeded the rate of sea-level rise concurrent with the emersion of the La Starza terrace. A previously unknown post-collapse submarine volcanic mound located between Nisida Island and Nisida Bank probably formed between 4.8 and 3.7Â ka. Also, the Penta Palummo Bank appears to be constructed of at least two monogenetic volcanic edifices, the Penta Palummo volcano formed at ~Â 100Â ka and a younger mushroom-shaped unit formed between 39 and 15Â ka. The main outcome of this study is a conceptual evolutionary model, providing novel insights on the formation of the Campi Flegrei nested caldera in the course of two large-scale eruptions (CI and NYT) with associated caldera collapses along mutual (i.e. reactivated) faults and subsequent caldera resurgence. As both the genesis and subsurface architecture of the Campi Flegrei caldera are still hotly debated topics in literature, our discoveries can be regarded as a substantial advancement in the understanding of the Campi Flegrei volcanic area.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Lena Steinmann, Volkhard Spiess, Marco Sacchi,