法国西部的新数据;圣布里耶克湾(北海岸)的Pentevrien和Brioverien

IF 2.6 3区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY
J. Cogné
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引用次数: 36

摘要

蛇绿岩Erquy系列代表了法国布列塔尼布里奥弗系的基底,它不协调地建立在花岗岩片麻岩、角闪岩和闪长杂岩的结晶复合体上。后来的变质作用对基底和盖层都有影响,使它们之间的关系模糊不清。Pentevrian这个名字是为该系列底部的前brioverian复合体(以arkoses和砾岩为代表)而提出的。它的确切年龄尚不清楚,下布里奥弗纪也可能是前寒武纪。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Donnees nouvelles sur l'Antecambrien dans l'ouest de la France; Pentevrien et Brioverien en baie de Saint-Brieuc (Cotes-du-Nord)
The ophiolitic Erquy series, representing the base of the Brioverian in Brittany, France, rests discordantly on a crystalline complex of granite-gneiss, amphibolites, and dioritic migmatites. Later metamorphism has affected both basement and cover and tends to obscure their relationships. The name Pentevrian is proposed for the pre-Brioverian complex at the base of the series (represented by arkoses and conglomerates in places). Its exact age is not known, as is also the case with the lower Brioverian which also is probably Precambrian.
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来源期刊
CiteScore
5.80
自引率
0.00%
发文量
18
审稿时长
>12 weeks
期刊介绍: BSGF - Earth Sciences Bulletin publie plusieurs types de contributions : 1. des articles originaux, couvrant tous les champs disciplinaires des Géosciences, à vocation fondamentale mais également à vocation plus appliquée (risques, ressources); 2. des articles de synthèse, faisant le point sur les avancées dans un domaine spécifique des Géosciences, qu''elles soient méthodologiques ou régionales ; 3. des monographies sur la géologie d’une région donnée, assorties d’informations supplémentaires, cartes, coupes, logs, profils sismiques … publiées en ligne en annexe de l’article ; 4. des articles courts de type « express letter » ; 5. des livrets-guides d’excursion (qui suivront le même processus d’examen éditorial que les articles plus classiques) ; 6. des comptes rendus de campagnes à la mer ; 7. des articles de données géodésiques, géophysiques ou géochimiques, pouvant devenir des articles de référence pouvant conduire à des interprétations ultérieures. BSGF - Earth Sciences Bulletin constitue également un forum pour les discussions entre spécialistes des Sciences de la Terre, de type comment-reply ou autre. Tous les articles publiés, quelle que soit leur forme, seront accessibles sans frais (articles en Open Access) sur le site de la SGF et sur celui de Geosciences World dans la mesure où les auteurs se seront acquittés d’une contribution de (Article Processing Charges – APC) de 300€ pour les membres de la SGF et 500€ pour les non-membres.
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