An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)

The occurrence of carbonatites in oceanic settings is very rare if compared with their continental counterpart, having been reported only in Cape Verde and Canary Islands. This paper provides an overview of the main geochemical characteristics of oceanic carbonatites, around which many debates still...

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Main Authors: Gabriele Carnevale, Antonio Caracausi, Alessandra Correale, Laura Italiano, Silvio G. Rotolo
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/11/2/203
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author Gabriele Carnevale
Antonio Caracausi
Alessandra Correale
Laura Italiano
Silvio G. Rotolo
author_facet Gabriele Carnevale
Antonio Caracausi
Alessandra Correale
Laura Italiano
Silvio G. Rotolo
author_sort Gabriele Carnevale
collection DOAJ
description The occurrence of carbonatites in oceanic settings is very rare if compared with their continental counterpart, having been reported only in Cape Verde and Canary Islands. This paper provides an overview of the main geochemical characteristics of oceanic carbonatites, around which many debates still exist regarding their petrogenesis. We present new data on trace elements in minerals and whole-rock, together with the first noble gases isotopic study (He, Ne, Ar) in apatite, calcite, and clinopyroxene from Fuerteventura carbonatites (Canary Islands). Trace elements show a similar trend as Cape Verde carbonatites, almost tracing the same patterns on multi-element and REE abundance diagrams. <sup>3</sup>He/<sup>4</sup>He isotopic ratios of Fuerteventura carbonatites reflect a shallow (sub-continental lithospheric mantle, SCLM) He signature in their petrogenesis, and they clearly differ from Cape Verde carbonatites, i.e., fluids from a deep and low degassed mantle with a primitive plume-derived He signature are involved in their petrogenesis.
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spelling doaj.art-6e0264ba0cb6482288c5c9b87d57ccfa2023-12-11T17:07:59ZengMDPI AGMinerals2075-163X2021-02-0111220310.3390/min11020203An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)Gabriele Carnevale0Antonio Caracausi1Alessandra Correale2Laura Italiano3Silvio G. Rotolo4Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università degli Studi di Palermo, 90133 Palermo, ItalyIstituto Nazionale di Geofisica e Vulcanologia (INGV), 90146 Palermo, ItalyIstituto Nazionale di Geofisica e Vulcanologia (INGV), 90146 Palermo, ItalyDipartimento di Scienze della Terra e del Mare (DiSTeM), Università degli Studi di Palermo, 90133 Palermo, ItalyDipartimento di Scienze della Terra e del Mare (DiSTeM), Università degli Studi di Palermo, 90133 Palermo, ItalyThe occurrence of carbonatites in oceanic settings is very rare if compared with their continental counterpart, having been reported only in Cape Verde and Canary Islands. This paper provides an overview of the main geochemical characteristics of oceanic carbonatites, around which many debates still exist regarding their petrogenesis. We present new data on trace elements in minerals and whole-rock, together with the first noble gases isotopic study (He, Ne, Ar) in apatite, calcite, and clinopyroxene from Fuerteventura carbonatites (Canary Islands). Trace elements show a similar trend as Cape Verde carbonatites, almost tracing the same patterns on multi-element and REE abundance diagrams. <sup>3</sup>He/<sup>4</sup>He isotopic ratios of Fuerteventura carbonatites reflect a shallow (sub-continental lithospheric mantle, SCLM) He signature in their petrogenesis, and they clearly differ from Cape Verde carbonatites, i.e., fluids from a deep and low degassed mantle with a primitive plume-derived He signature are involved in their petrogenesis.https://www.mdpi.com/2075-163X/11/2/203trace elementsnoble gases isotopesoceanic carbonatitesFuerteventuraCape Verde
spellingShingle Gabriele Carnevale
Antonio Caracausi
Alessandra Correale
Laura Italiano
Silvio G. Rotolo
An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
Minerals
trace elements
noble gases isotopes
oceanic carbonatites
Fuerteventura
Cape Verde
title An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
title_full An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
title_fullStr An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
title_full_unstemmed An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
title_short An Overview of the Geochemical Characteristics of Oceanic Carbonatites: New Insights from Fuerteventura Carbonatites (Canary Islands)
title_sort overview of the geochemical characteristics of oceanic carbonatites new insights from fuerteventura carbonatites canary islands
topic trace elements
noble gases isotopes
oceanic carbonatites
Fuerteventura
Cape Verde
url https://www.mdpi.com/2075-163X/11/2/203
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