The early land plants from the Armorican Massif: sedimentological and palynological considerations on age and environment

被引：10

作者：

Strullu-Derrien, Christine ^{[1
,2
]}

Ducassou, Celine ^{[3
]}

Ballevre, Michel ^{[3
]}

Dabard, Marie-Pierre ^{[3
]}

Gerrienne, Philippe ^{[2
]}

Lardeux, Hubert ^{[4
]}

Le Herisse, Alain ^{[5
]}

Robin, Cecile ^{[3
]}

Steemans, Philippe ^{[2
]}

Strullu, Desire-Georges ^{[1
]}

机构：

[1] Univ Angers, Lab Mycorhizes, UFR Sci, F-49045 Angers, France

[2] Univ Liege, Dept Geol, B-4000 Liege, Belgium

[3] Univ Rennes 1, Geosci Rennes UMR CNRS 6118, F-35042 Rennes, France

[4] Le Verger Beauce, F-35520 Melesse, France

[5] Univ Brest, CNRS, UMR Domaines Ocean 6538, Inst Univ Europeen Mer, F-29238 Brest 3, France

来源：

GEOLOGICAL MAGAZINE | 2010年 / 147卷 / 06期

关键词：

early land plants; Lower Devonian; spores; acritarchs; emergence event; unconformity; storm; OLD RED SANDSTONE; VARISCAN BELT; SAUDI-ARABIA; ORDOVICIAN; DEPOSITS; MIDDLE; EVOLUTION; FRANCE; MICROPHYTOPLANKTON; STRATIGRAPHY;

D O I：

10.1017/S001675681000004X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Chateaupanne Unit belongs to the South Armorican domain of the Armorican Massif (France), which is part of the Variscan belt. This unit includes two Lower Devonian plant levels and one of them corresponds to the Basal Member of the Chalonnes Formation. A sedimentological and palaeontological analysis of these fossiliferous deposits from the Chateaupanne quarry (Montjean/Loire, Maine et Loire, France) is presented here for the first time. The age determination based on palynology indicates that the locality records the earliest occurrence of plant megafossils in the Armorican Massif. Their presence suggests an emergence event that has never been described before. Our study highlights the promising potential of the Basal Member of the Chalonnes Formation to aid in understanding these occurrences, and provides new insights into the history of the Variscan belt.

引用

页码：830 / 843

页数：14

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