气候变化领域集成服务门户(CCPortal): Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio; central Italy)

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DOI	10.1016/j.quascirev.2018.11.027
	Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio; central Italy)
	Di Rita F.; Sottili G.
发表日期	2019
ISSN	0277-3791
起始页码	78
结束页码	93
卷号	204
英文摘要	Diatomite deposits in the Sabatini Volcanic District (central Italy) represent valuable archives to investigate both Middle Pleistocene vegetation dynamics and geochemistry of proximal products of volcanic eruptions, which provide crucial geochronological markers for a large region of Southern Europe. We present a new pollen record from a diatomite deposit at Rignano Flaminio, attributed to MIS 13 based on two major eruptive events from Monti Sabatini: the Grottarossa Pyroclastic Sequence (513 ± 3 ka) and the Fall A unit (499 ± 3 ka). We also add insights into the geochemical and mineralogical composition of the proximal deposits of the Fall A tephra, whose products are found in several sites of the central Mediterranean. Our pollen record shows marked vegetation turnovers, reflecting changes in regional and global climate conditions, local environmental factors and ecological processes within refuge areas. The lower part of the record points to a forested environment dominated by both deciduous and evergreen broadleaved taxa, indicating wet and temperate climate conditions. This interval was punctuated by two phases of slight forest declines, where a general increase in Poaceae and Artemisia, coupled with the development of Ericaceae and evergreen Quercus communities, suggests the establishment of mediterranean-type climatic conditions with increased aridity. The upper part of the sequence shows the development of Abies and Pinus woodlands, reflecting a change towards cooler and possibly wetter climate. The pollen richness, accompanied by a fossil leaf of Laurus, confirms the role of the Sabatini Volcanic District as a Pleistocene biodiversity hot-spot and refuge area for many trees. © 2018 Elsevier Ltd
英文关键词	Fagus; Laurus; MIS 13; Monti Sabatini Fall A; Pleistocene; Pollen; Tilia; Vegetation dynamics
语种	英语
scopus关键词	Biodiversity; Deposits; Forestry; Geochemistry; Geochronology; Vegetation; Volcanoes; Fagus; Laurus; Monti Sabatini Fall A; Pleistocene; Pollen; Tilia; Vegetation dynamics; Climate change; biodiversity; climate conditions; deciduous tree; diatomite; dicotyledon; environmental factor; evergreen tree; geochemistry; global climate; lacustrine deposit; lacustrine environment; marine isotope stage; Pleistocene; pollen; refuge; succession; vegetation dynamics; volcanic eruption; woodland; Italy; Italy; Lazio; Mediterranean Region; Sabatini Mountains; Viterbo; Abies; Artemisia; Ericaceae; Fagus; Laurus; Poaceae; Quercus; Tilia
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152058
作者单位	Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Piazzale Aldo Moro, 5, Roma, 00185, Italy; Dipartimento di Scienze della Terra, Sapienza Università di Roma, Piazzale Aldo Moro, 5, Roma, 00185, Italy
推荐引用方式 GB/T 7714	Di Rita F.,Sottili G.. Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio; central Italy)[J],2019,204.
APA	Di Rita F.,&Sottili G..(2019).Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio; central Italy).Quaternary Science Reviews,204.
MLA	Di Rita F.,et al."Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio; central Italy)".Quaternary Science Reviews 204(2019).