Quartz-bearing rhyolitic melts in the Earth’s mantle

Autor: Luigi Dallai, Gianluca Bianchini, Riccardo Avanzinelli, Etienne Deloule, Claudio Natali, Mario Gaeta, Andrea Cavallo, Sandro Conticelli

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)

The paper reports the occurrence of quartz-bearing rhyolitic melt inclusions and interstitial glasses within peridotite xenoliths. Their O-isotope composition proves crustal derivation and cycling into the mantle at convergent plate margins.

Externí odkaz: https://doaj.org/article/6db3a9ed13604d2a9158dc8d8782249e

High H2O Content in Pyroxenes of Residual Mantle Peridotites at a Mid Atlantic Ridge Segment

Autor: Enrico Bonatti, Qun-Ke Xia, Pei Li, Anna Cipriani, Daniele Brunelli, Marco Ligi, Luigi Dallai

Publikováno v: Scientific reports (Nature Publishing Group) 10 (2020). doi:10.1038/s41598-019-57344-4
info:cnr-pdr/source/autori:Li P.; Xia Q.-K.; Dallai L.; Bonatti E.; Brunelli D.; Cipriani A.; Ligi M./titolo:High H2O Content in Pyroxenes of Residual Mantle Peridotites at a Mid Atlantic Ridge Segment/doi:10.1038%2Fs41598-019-57344-4/rivista:Scientific reports (Nature Publishing Group)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:10
Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
Università degli studi di Modena e Reggio Emilia-IRIS
Scientific Reports

Global correlations of mid-ocean-ridges basalt chemistry, axial depth and crustal thickness have been ascribed to mantle temperature variations affecting degree of melting. However, mantle H2O content and elemental composition may also play a role. H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29fe51257dfbc9af985cdc043722faa4
https://publications.cnr.it/doc/430587

Recycled oceanic crust-derived fluids in the lithospheric mantle of eastern China: Constraints from oxygen isotope compositions of peridotite xenoliths

Autor: Luigi Dallai, Massimo Coltorti, Yan-Tao Hao, Qun-Ke Xia

Publikováno v: Lithos (Oslo. Print) 228 (2015): 55–61. doi:10.1016/j.lithos.2015.05.001
info:cnr-pdr/source/autori:Hao Y.T.[1,3,4], Xia Q.K.[1,4] Dallai L.[2] Coltorti M.[3]/titolo:Recycled oceanic crust-derived fluids in the lithospheric mantle of eastern China:Constraints from oxygen isotope compositions of peridotite xenoliths/doi:10.1016%2Fj.lithos.2015.05.001/rivista:Lithos (Oslo. Print)/anno:2015/pagina_da:55/pagina_a:61/intervallo_pagine:55–61/volume:228

The oxygen isotope compositions of minerals of peridotite xenoliths from the Subei basin, Eastern China were investigated to detect a possible crustal signature in mantle rocks. The delta O-18 values of olivine (ol), orthopyroxene (opx) and clinopyro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b1e909d7d383416d196194418d4d8f1
https://doi.org/10.1016/j.lithos.2015.05.001

Origin and age of zircon-bearing chromitite layers from the Finero phlogopite peridotite (Ivrea-Verbano Zone, Western Alps) and geodynamic consequences

Autor: Antonio Langone, Tommaso Giovanardi, Maurizio Mazzucchelli, Massimo Tiepolo, Fu-Yuan Wu, Alberto Zanetti, Luigi Dallai

Publikováno v: Lithos (Oslo. Print) 262 (2016): 58–74. doi:10.1016/j.lithos.2016.06.015
info:cnr-pdr/source/autori:Zanetti A.; Giovanardi T.; Langone A.; Tiepolo M.; Wu F.-Y.; Dallai L.; Mazzucchelli M./titolo:Origin and age of zircon-bearing chromitite layers from the Finero phlogopite peridotite (Ivrea-Verbano Zone, Western Alps) and geodynamic consequences/doi:10.1016%2Fj.lithos.2016.06.015/rivista:Lithos (Oslo. Print)/anno:2016/pagina_da:58/pagina_a:74/intervallo_pagine:58–74/volume:262

An investigation has been performed on three chromitite layers segregated in dunite bodies of the Phlogopite Peridotite mantle unit in the Finero complex (FPP, Ivrea–Verbano Zone, Southern Alps) aimed at providing new constraints to their origin an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a5a33f2f86c06982796cb26791e8a01
http://hdl.handle.net/11573/1528693

Thermal Evolution of the Lithosphere in a Rift Environment as Inferred from the Geochemistry of Mantle Cumulates, Northern Victoria Land, Antarctica

Autor: Pietro Armienti, Luigi Dallai, Cristina Perinelli

Publikováno v: Journal of petrology
52 (2011): 665–690.
info:cnr-pdr/source/autori:Perinelli, C. (1); Armienti, P. (1); Dallai, L. (2)/titolo:Thermal evolution of the lithosphere in a rift environment as inferred from the geochemistry of mantle cumulates, Northern Victoria Land, Antarctica./doi:/rivista:Journal of petrology (Print)/anno:2011/pagina_da:665/pagina_a:690/intervallo_pagine:665–690/volume:52

Among the abundant mantle xenoliths carried by the Cenozoic alkaline basalts of northern Victoria Land, Antarctica, we have studied a suite of clinopyroxene-rich cumulates collected at Browning Pass (Mt. Melbourne Volcanic Province), ranging in compo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09a217629b5cd4f1b36f371f2aae81fa
https://doi.org/10.1093/petrology/egq099