DOI: 10.1016/j.quascirev.2018.11.027
Scopus记录号: 2-s2.0-85057576303
论文题名: Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio, central Italy)
作者: Di Rita F. ; Sottili G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2019
卷: 204 起始页码: 78
结束页码: 93
语种: 英语
英文关键词: Fagus
; Laurus
; MIS 13
; Monti Sabatini Fall A
; Pleistocene
; Pollen
; Tilia
; Vegetation dynamics
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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117420
Appears in Collections: 气候变化与战略
There are no files associated with this item.
Recommended Citation:
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]. Quaternary Science Reviews,2019-01-01,204