Proto-Adamastor ocean crust (920 Ma) described in Brasiliano Orogen from coetaneous zircon and tourmaline.

Simple item page
dc.contributor.authorHartmann, Leo Afraneo
dc.contributor.authorWerle, Mariana
dc.contributor.authorMichelin, Cassiana Roberta Lizzoni
dc.contributor.authorLana, Cristiano de Carvalho
dc.contributor.authorQueiroga, Gláucia Nascimento
dc.contributor.authorCastro, Marco Paulo de
dc.contributor.authorArena, Karine da Rosa
dc.date.accessioned2019-05-06T16:30:28Z
dc.date.available2019-05-06T16:30:28Z
dc.date.issued2018
dc.description.abstractProto-Adamastor ocean bathed Rodinia and successor continental fragments from 1.0e0.9 Ga up to 0.75 Ga, and evolved into world Adamastor Ocean at 0.75e0.60 Ga. Mesoproterozoic oceanic crust is poorly preserved on continents, only indirect evidence registered in Brasiliano Orogen. We report first evidence of ophiolite originated in proto-Adamastor. We use multi-technique U-Pb-Hf zircon and d11B tourmaline isotopic and elemental compositions. The host tourmalinite is enclosed in metaserpentinite, both belonging to the Bossoroca ophiolite. Zircon is 920 Ma-old, 3 Hf(920 Ma)¼þ12, HfTDM ¼ 1.0 Ga and has ‘oceanic’ composition (e.g., U/Yb < 0.1). Tourmaline is dravite with d11B ¼ þ1.8& (Tur 1), 0& (Tur 2), 8.5& (Tur 3). These characteristics are a novel contribution to Rodinia and associated world ocean, because a fragment of proto-Adamastor oceanic crust and mantle evolved at the beginning of the Brasiliano Orogen.pt_BR
dc.identifier.citationHARTMANN, L. A. et al. Proto-Adamastor ocean crust (920 Ma) described in Brasiliano Orogen from coetaneous zircon and tourmaline. Geoscience Frontiers, v. 1, p. 1-21, 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1674987118302354>. Acesso em: 08 fev. 2019.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.gsf.2018.09.018pt_BR
dc.identifier.issn1674-9871
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/11198
dc.language.isopt_BRpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). Fonte: o próprio artigopt_BR
dc.subjectCoeval zircon and tourmalinept_BR
dc.subjectBossoroca ophiolitept_BR
dc.subjectEarly Brasiliano Orogenpt_BR
dc.subjectZircon trace elementspt_BR
dc.titleProto-Adamastor ocean crust (920 Ma) described in Brasiliano Orogen from coetaneous zircon and tourmaline.pt_BR
dc.typeArtigo publicado em periodicopt_BR
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
ARTIGO_ProtoAdamastorOcean.pdf
Size:
7.72 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
924 B
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
DEGEO - Artigos publicados em periódicos