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New constraints on the origin of the ophiolitic rocks within sinorogenic turbiditic sequences at Cilento region (southern Italy)

التفاصيل البيبلوغرافية
العنوان: New constraints on the origin of the ophiolitic rocks within sinorogenic turbiditic sequences at Cilento region (southern Italy)
المؤلفون: Mazzeo, F. C., Aulinas Juncà , Meritxell, Arienzo, I., Cirillo, G., Iovine, R. S., Sparice, D., De Vita, P.
سنة النشر: 2016
المجموعة: Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB
مصطلحات موضوعية: Southern apennine, Cilento region, Mount centaurino, Ophiolitic olistoliths, Morb-type rocks
الوصف: Mafic igneous rocks (pillow lavas and gabbros) embedded as olistoliths within Miocene turbiditic sequences crop out in the Cilento area at the Mount Centaurino (Campania region, Southern Italy). The concentration of major oxides, as well as trace element ratios (Nb/Yb, Nb/Ta, Th/Nb) and the chondrite-normalized Rare Earth Elements (REE) patterns suggest a tholeiitic character with Mid Oceanic Ridge Basalts (MORB) affinity. The chemical composition of pillow lavas is consistent with magmas generated by 10% degrees of non-modal fractional partial melting, of a spinel-bearing MORB-type asthenospheric mantle. Regarding gabbros, the calculated composition of parental melts in equilibrium with the clinopyroxenes show a wide compositional range, and there are very different from the pillow basalts of the Mount Centaurino, suggesting that the clinopyroxenes might have derived from more evolved melts compared to those that produced the basalts. The origin of these olistoliths is not yet understood. Here we suggest that these rocks represent fragment of a dismantled accretionary wedge embedded during the deposition of the Cilento group sedimentary successions in a thrust top basin.
نوع الوثيقة: article in journal/newspaper
وصف الملف: application/pdf
اللغة: English
ردمك: 978-0-00-384516-7
0-00-384516-8
تدمد: 16965728
Relation: Geologica acta; Vol. 14 Núm. 3 (September 2016), p. 299-314; https://ddd.uab.cat/record/165468; urn:10.1344/GeologicaActa2016.14.3.6; urn:oai:ddd.uab.cat:165468; urn:oai:raco.cat:article/312908; urn:articleid:16965728v14n3p299; urn:scopus_id:84990858950; urn:wos_id:000384516800006; urn:oai:revistes.ub.edu:article/14457
الاتاحة: https://ddd.uab.cat/record/165468
Rights: open access ; Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria. ; https://creativecommons.org/licenses/by-sa/3.0/
رقم الانضمام: edsbas.A13629AD
قاعدة البيانات: BASE
الوصف
ردمك:9780003845167
0003845168
تدمد:16965728