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DOI	10.1007/s00531-020-01933-6
	Geochemical and Sr–Nd isotopic features of the Zaro volcanic complex: insights on the magmatic processes triggering a small-scale prehistoric eruption at Ischia island (south Italy)
	Pelullo C.; Cirillo G.; Iovine R.S.; Arienzo I.; Aulinas M.; Pappalardo L.; Petrosino P.; Fernandez-Turiel J.L.; D’Antonio M.
发表日期	2020
ISSN	14373254
起始页码	2829
结束页码	2849
卷号	109 期号:8
英文摘要	The prehistoric (< 7 ka) Zaro eruption at Ischia island (Southern Italy) produced a lava complex overlaying a pyroclastic deposit. Although being of low energy, the Zaro eruption might have caused casualties among the neolithic population that inhabited that area of Ischia, and damages to their settlements. A similar eruption at Ischia with its present-day population would turn into a disaster. Therefore, understanding the magmatic processes that triggered the Zaro eruption would be important for volcanic hazard assessment and risk mitigation, so as to improve a knowledge that can be applied to other active volcanic areas worldwide. The main Zaro lava body is trachyte and hosts abundant mafic and felsic enclaves. Here all juvenile facies have been fully characterized from petrographic, geochemical and isotopic viewpoints. The whole dataset (major and trace element contents; Sr–Nd isotopic composition) leads to rule out a genetic link by fractional crystallization among the variable facies. Thus, we suggest that the Zaro mafic enclaves could represent a deep-origin mafic magma that mingled/mixed with the main trachytic one residing in the Ischia shallow magmatic system. The intrusion of such a mafic magma into a shallow reservoir filled by partly crystallized, evolved magma could have destabilized the magmatic system presumably acting as a rapid eruption trigger. The resulting processes of convection, mixing and rejuvenation have possibly played an important role in pre- and syn-eruptive phases also in several eruptions of different sizes in the Neapolitan area and elsewhere in the world. © 2020, The Author(s).
英文关键词	Ischia island; Isotope geochemistry; Mafic enclaves; Mineral chemistry; Zaro volcanic complex
语种	英语
scopus关键词	igneous geochemistry; inclusion; lava; magmatism; neodymium isotope; prehistoric; strontium isotope; trigger mechanism; volcanic eruption; Campania [Italy]; Ischia; Italy; Napoli [Campania]
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147597
作者单位	Dipartimento di Scienze della Terra, dell’Ambiente e delle Risorse, Università Degli Studi di Napoli Federico II, Naples, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Napoli Osservatorio Vesuviano, Naples, Italy; Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona, c/ Martí Franquès s/n, Barcelona, 08028, Spain; Geosciences Barcelona, GEO3BCN, CSIC, Lluís Solé i Sabaris s/n, Barcelona, 08028, Spain
推荐引用方式 GB/T 7714	Pelullo C.,Cirillo G.,Iovine R.S.,等. Geochemical and Sr–Nd isotopic features of the Zaro volcanic complex: insights on the magmatic processes triggering a small-scale prehistoric eruption at Ischia island (south Italy)[J],2020,109(8).
APA	Pelullo C..,Cirillo G..,Iovine R.S..,Arienzo I..,Aulinas M..,...&D’Antonio M..(2020).Geochemical and Sr–Nd isotopic features of the Zaro volcanic complex: insights on the magmatic processes triggering a small-scale prehistoric eruption at Ischia island (south Italy).International Journal of Earth Sciences,109(8).
MLA	Pelullo C.,et al."Geochemical and Sr–Nd isotopic features of the Zaro volcanic complex: insights on the magmatic processes triggering a small-scale prehistoric eruption at Ischia island (south Italy)".International Journal of Earth Sciences 109.8(2020).