The early land plants from the Armorican Massif: sedimentological and palynological considerations on age and environment
| Autor: | D. G. Strullu, Alain Le Hérissé, Christine Strullu-Derrien, Céline Ducassou, Cécile Robin, Marie-Pierre Dabard, Philippe Steemans, Michel Ballèvre, Philippe Gerrienne, Hubert Lardeux |
|---|---|
| Přispěvatelé: | Laboratoire Mycorhizes, Université d'Angers (UA), Paléobotanique, Paléopalynologie et Micropaléontologie, Université de Liège, Géosciences Rennes (GR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS), Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2010 |
| Předmět: |
Palynology
010506 paleontology geography geography.geographical_feature_category early land plants emergence event spores Acritarch Geology Massif 15. Life on land 010502 geochemistry & geophysics 01 natural sciences Unconformity Devonian Lower Devonian unconformity Paleontology Vegetation types acritarchs Paleoecology storm [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology 0105 earth and related environmental sciences |
| Zdroj: | Geological Magazine Geological Magazine, Cambridge University Press (CUP), 2010, 147 (6), pp.830-843. ⟨10.1017/S001675681000004X⟩ Geological Magazine, 2010, 147 (6), pp.830-843. ⟨10.1017/S001675681000004X⟩ |
| ISSN: | 1469-5081 0016-7568 |
| DOI: | 10.1017/s001675681000004x |
| Popis: | The Châteaupanne 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 Châteaupanne 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|