A revised age (Emsian-Eifelian) for the Sainte-Anne Formation (Armorican Massif, France): implications for the onset of mountain building in the Variscan belt

Ballevre M; Ducassou C; Lardeux H; Regnault S

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A revised age (Emsian-Eifelian) for the Sainte-Anne Formation (Armorican Massif, France): implications for the onset of mountain building in the Variscan belt

机译：Sainte-Anne组（法国Armorican Massif）的修订年龄（Emsian-Eifelian）：对Variscan带山地建筑开始的影响

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The Sainte-Anne Formation (Chateaupanne Unit, Amiorican Massif) consists of immature sandstones conformably deposited upon reefal limestones. Plant debris are abundant in the Saint-Anne sandstones (hence their older name of "Schistes et gres a Psilophytes"), but only rare crinoids and brachiopods have been found. The faunal content is analyzed in detail, consisting of a few columnals of crinoids and brachiopods (Ambocoelia and Plectodonta minor, the most common species). The distribution in space and time of the genus Plectodonta in Europe is analyzed, and allows proposing an Emsian to early Eifelian age for the Sainte-Anne Fm. Consequently, the Sainte-Anne Fm (Armorican Massif) could be the earliest record of the relief created at the beginning of the Variscan orogeny.

机译：Sainte-Anne地层（Chamiupanne单元，Amiorican地块）由未成熟的砂岩组成，均匀地沉积在珊瑚礁灰岩上。 Saint-Anne砂岩中植物残渣丰富（因此其旧称“ Schistes et gres a Psilophytes”），但仅发现了稀有的海百合和腕足动物。对动物区系进行了详细分析，其中包括一些圆柱状的触角类和腕足类（最常见的物种有Ambocoelia和Plectodonta）。分析了欧洲翼龙属（Plectodonta）在时空上的分布，并为圣安妮（Sainte-Anne Fm）提出了一个埃姆斯时期至伊菲尔时代的建议。因此，Sainte-Anne Fm（Armorican Massif）可能是瓦里斯卡造山带开始时产生的浮雕的最早记录。

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《Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen》 |2010年第3期|共18页
作者
Ballevre M; Ducassou C; Lardeux H; Regnault S;
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正文语种 eng
中图分类地质学;
关键词
Variscan belt; Early to Middle Devonian; Armorican Massif; brachiopods; crinoids; mountain building;

机译：瓦里斯卡纳带;早至中泥盆纪;阿莫里肯地块;腕足纲;类海蛇;山造;

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1. A revised age (Emsian-Eifelian) for the Sainte-Anne Formation (Armorican Massif, France): implications for the onset of mountain building in the Variscan belt [J] . Ballevre M, Ducassou C, Lardeux H, Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen . 2010,第3期

机译：Sainte-Anne组（法国Armorican Massif）的修订年龄（Emsian-Eifelian）：对Variscan带山地建筑开始的影响
2. Age and depositional environment of the Sainte-Anne Formation (Armorican Massif, France): the oldest (Emsian) evidence for mountain erosion in the Variscan belt [J] . Céline Ducassou, Christine Strullu-Derrien, Michel Ballevre, Bulletin de la Societe Geologique de France . 2009,第6期

机译：Sainte-Anne组的年龄和沉积环境（法国阿莫里肯山地块）：最古老的（Emsian）证据表明，Variscan带发生了山体侵蚀
3. Age and depositional environment of the Sainte-Anne Formation (Armorican Massif, France): the oldest (Emsian) evidence for mountain erosion in theVariscan belt [J] . CELINE DUCASSOU, CHRISTINE STRULLU-DERRIEN, MICHEL BALLEVRE, Bulletin de la Societe Geologique de France . 2009,第6期

机译：Sainte-Anne组的年龄和沉积环境（法国，阿莫里肯地块）：Variscan带山体侵蚀的最古老（Emsian）证据
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A revised age (Emsian-Eifelian) for the Sainte-Anne Formation (Armorican Massif, France): implications for the onset of mountain building in the Variscan belt

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