Petrogenesis of Cenozoic volcanic rocks in the NW sector of the Gharyan volcanic field, Libya

Lustrino, Michele; Cucciniello, Ciro; Melluso, Leone; Tassinari, Colombo Celso Gaeta; Gennaro, Roberto de; Serracino, M.

doi:10.1016/j.lithos.2012.09.003

Cited by 27 publications

(23 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9). The Mn-rich nature of aenigmatite matches that of other (sodic) phonolites all around the Mediterranean basin or elsewhere (e.g., Lustrino et al, 2012 and references therein; Mbowou et al, 2013). It is tempting to correlate the high Mn concentration with the degree of silica undersaturation of Mediterranean rocks bearing this mineral.…”

Section: Aenigmatitementioning

confidence: 80%

“…Manganese reaches values as high as 11.7 wt.% MnO at Sant'Angelo, and 8.7 wt.% MnO at Mt. Vezzi, as typical of spinels crystallizing from highly evolved silica undersaturated trachytic and phonolitic magmas (e.g., Brotzu et al, 1997Brotzu et al, , 2007Lustrino et al, 2012;Melluso et al, 2012a;Moreau et al, 1996). Very rare ilmenite has been found in the groundmass of the mafic blobs at Zaro, Mt.…”

Section: Chromiferous Spinel and Opaque Oxidesmentioning

confidence: 99%

See 1 more Smart Citation

The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2O–Cl–F-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes

Melluso

Morra

Guarino

et al. 2014

Lithos

View full text Add to dashboard Cite

Section: Aenigmatitementioning

confidence: 80%

Section: Chromiferous Spinel and Opaque Oxidesmentioning

confidence: 99%

The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2O–Cl–F-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes

Melluso

Morra

Guarino

et al. 2014

Lithos

View full text Add to dashboard Cite

“…Channel; Avanzinelli et al, 2004;Civetta et al, 1998;Berger et al, 2009;Ronga et al, 2010;Lustrino et al, 2012;White et al, 2012). In the Sulcis area, however, peralkaline rhyolites (found in the comendite type-locality) are genetically associated with subduction-related rocks as in few other cases worldwide (e.g., New Zealand, Papua New Guinea and southern Mongolia; Smith et al, 1977;Kovalenko et al, 2009;.…”

Section: As Proposed By Lustrino Et Al (2009) the Main Problem Withmentioning

confidence: 99%

Origin and evolution of Cenozoic magmatism of Sardinia (Italy). A combined isotopic (Sr–Nd–Pb–O–Hf–Os) and petrological view

Lustrino

Fedele

Melluso

et al. 2013

Lithos

Self Cite

View full text Add to dashboard Cite

Origin and evolution of Cenozoic magmatism of Sardinia (Italy). A combined isotopic (Sr-Nd-Pb-O-Hf-Os) and petrological view, LITHOS (2013), doi: 10.1016/j.lithos.2013.08.022 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

show abstract

“…Similar patterns in trachyte-syenite-phonolite samples have been already shown (e.g., Bobaomby, Melluso et al 2007a;Massif d'Ambre, Cucciniello et al 2011b;Gharyan, Libya, Lustrino et al 2012;Ischia, Italy, Melluso et al 2014). The concave REE pattern is likely related to removal of small amounts of titanite (~1 %) (e.g., Olin and Wolff 2012;Lustrino et al 2012).…”

Section: The Evolved Rocksmentioning

confidence: 99%

“…In such magmatic systems, the concentration of Na, Cl, F and other volatile species are generally high and increase the solubility of HFSE in highly evolved melts, with the consequent late crystallization of phases such F-disilicates and eudialyte in the interstices of lavas and intrusive rocks Melluso et al 2012Melluso et al , 2014. The Ampasindava agpaitic phonolites formed by fractional crystallization of a phonolitic magma in a Na-, Cl-, F-rich enviroment (e.g., Melluso et al 2012;Andersen et al 2010;Lustrino et al 2012). …”

Section: The Evolved Rocksmentioning

confidence: 99%

The age and petrogenesis of alkaline magmatism in the Ampasindava Peninsula and Nosy Be archipelago, northern Madagascar

Cucciniello

Tucker²,

Jourdan

et al. 2015

Miner Petrol

View full text Add to dashboard Cite

The Ampasindava alkaline province consists of a series of circular and elliptical intrusions, lava flows, dyke swarms and plugs of Cenozoic age emplaced into the Mesozoic-Cenozoic sedimentary rocks of the Antsiranana basin (NW Madagascar) and above the crystalline basement. The magmatism in the Ampasindava region is linked to a NW-SE trending extensional tectonic setting. New 40Ar/39Ar age determinations on feldspar separate of alkali granites and basaltic dykes yielded ages of 18.01 ± 0.36 Ma and 26 ± 7 Ma, respectively. Alkali basalts and basanites, nepheline syenites and phonolites, and silica saturated-to-oversaturated syenites, trachytes, granites and rhyolites are the main outcropping lithologies. These rocks have sodic affinity. The felsic rocks are dominant, and range from peraluminous to peralkaline. The mantle-normalized incompatible element patterns of the mafic lavas match those of Na-alkaline lavas in within-plate rift settings. The patterns are identical in shape and absolute concentrations to those of the Bobaomby (Cap d’Ambre) and Massif d’Ambre primitive volcanic rocks. These geochemical features are broadly compatible with variable degrees of partial melting of incompatible element-enriched mantle sources. The mineralogical and geochemical variations are consistent with fractional crystallization processes involving removal of olivine, feldspar, clinopyroxene, amphibole, Fe-Ti oxides and apatite. Removal of small amount of titanite explains the concave upward lanthanide pattern in the evolved nepheline syenites and phonolites, which are additionally rich in exotic silicates typical of agpaitic magmas (eudialyte, F-disilicates)

show abstract

Petrogenesis of Cenozoic volcanic rocks in the NW sector of the Gharyan volcanic field, Libya

Cited by 27 publications

References 63 publications

The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2O–Cl–F-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes

The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2O–Cl–F-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes

Origin and evolution of Cenozoic magmatism of Sardinia (Italy). A combined isotopic (Sr–Nd–Pb–O–Hf–Os) and petrological view

The age and petrogenesis of alkaline magmatism in the Ampasindava Peninsula and Nosy Be archipelago, northern Madagascar

Contact Info

Product

Resources

About