Roman comagmatic province (central Italy): Evidence for subduction-related magma genesis

Abstract

Research Article| February 01, 1985 Roman comagmatic province (central Italy): Evidence for subduction-related magma genesis Angelo Peccerillo Angelo Peccerillo 1Dipartimento di Scienze della Terra, University of Florence, Via La Pira 4, Firenze, Italy Search for other works by this author on: GSW Google Scholar Geology (1985) 13 (2): 103–106. https://doi.org/10.1130/0091-7613(1985)13<103:RCPCIE>2.0.CO;2 Article history first online: 01 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 Angelo Peccerillo; Roman comagmatic province (central Italy): Evidence for subduction-related magma genesis. Geology 1985;; 13 (2): 103–106. doi: https://doi.org/10.1130/0091-7613(1985)13<103:RCPCIE>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 Geochemical data on mafic volcanics show that important affinities exist between the Roman and the calc-alkaline rocks from the Aeolian arc (south Tyrrhenian Sea). These affinities, together with the close association of calc-alkaline and K-rich volcanics in the Aeolian arc and in the Naples area, the continuity in the variation of abundances of incompatible elements from calc-alkaline to potassic suites, and the similarity in terms of major-element geochemistry, support a genetic relationship of the Roman magmatism and the subduction processes that affected the Apennines in Tertiary time and are still active under the Aeolian arc.In the genetic model presented here, both calc-alkaline and K-rich magmas were generated within a mantle heterogeneously enriched in LIL elements. Composition of the mantle was modified by addition of material, probably sediments, dragged down by the undergoing slab.The geochemical and petrological differences displayed by the calc-alkaline and K-rich volcanics are accounted for by the different conditions of melting as well as by chemical and isotopic heterogeneities of the source. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.