气候变化领域集成服务门户(CCPortal): Lower Cretaceous inversion of the European Variscan basement: record from the Vendée and Limousin (France)

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DOI	10.1007/s00531-020-01875-z
	Lower Cretaceous inversion of the European Variscan basement: record from the Vendée and Limousin (France)
	François T.; Barbarand J.; Wyns R.
发表日期	2020
ISSN	14373254
起始页码	1837
结束页码	1852
卷号	109 期号:5
英文摘要	The post-orogenic evolution of the European Variscan basement remains difficult to constrain due to the absence of post-orogenic sedimentary records. One of the current ways to access this history is to constrain the thermal evolution of these basement areas through indirect methods such as low-temperature thermochronology (LTT) thermal modelling. In this study, apatite fission-track (AFT) data have been acquired for the north-eastern part (Vendée and Limousin) of the French Massif Central Variscan basement. Similar thermal inversion procedure has been done, assuming that some samples were close to the surface during Triassic times. The results show a complex post-Variscan evolution of the western part of the Massif Central. Inversion of the AFT data indicates a high-temperature event during the Jurassic period. This thermal event can be interpreted as the deposition of a significant sedimentary cover which has been later eroded during the Late Jurassic and/or Early Cretaceous. Interpretation of the thermal models implies the presence of the sampled rocks close to the surface during Cretaceous and Eocene times. The estimated volume of this eroded sedimentary cover suggests a probable larger extension of the surrounding sedimentary basins (Paris Basin and Aquitaine Basin) across the Variscan basement area. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	Lower Cretaceous geodynamical event; Massif Central; Thermochronology; Variscan basement
语种	英语
scopus关键词	basement rock; Cretaceous; geodynamics; geological record; Hercynian orogeny; temperature inversion; thermal evolution; thermochronology; France; Limousin; Massif Central; Nouvelle-Aquitaine; Pays de la Loire; Vendee
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147653
作者单位	Université Paris-Saclay, CNRS, GEOPS, Orsay, 91405, France; BRGM (French Geological Survey), DGR/GAT, 1, Av. Cl. Guillemin, BP 36009, Orléans Cedex 2, 45060, France
推荐引用方式 GB/T 7714	François T.,Barbarand J.,Wyns R.. Lower Cretaceous inversion of the European Variscan basement: record from the Vendée and Limousin (France)[J],2020,109(5).
APA	François T.,Barbarand J.,&Wyns R..(2020).Lower Cretaceous inversion of the European Variscan basement: record from the Vendée and Limousin (France).International Journal of Earth Sciences,109(5).
MLA	François T.,et al."Lower Cretaceous inversion of the European Variscan basement: record from the Vendée and Limousin (France)".International Journal of Earth Sciences 109.5(2020).