A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?

doi:10.1016/j.quascirev.2019.106039

	A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?
	Capraro, Luca 2; Tateo, Fabio 1; Ferretti, Patrizia 3; Fornaciari, Eliana 2; Macri, Patrizia 4; Scarponi, Daniele 5; Preto, Nereo 2; Xian, Feng 6,7; Kong, Xianghui 6,7; Xie, Xingjun 6,7
刊名	QUATERNARY SCIENCE REVIEWS
	2019-12-15
卷号	226 页码:20
ISSN号	0277-3791
DOI	10.1016/j.quascirev.2019.106039
通讯作者	Capraro, Luca(luca.capraro@unipd.it)
英文摘要	The Be-10/Be-9 ratio is commonly employed as a tool for establishing the stratigraphic position of paleo- magnetic excursions and reversals whenever the traditional paleomagnetic approach fails to provide conclusive results. In particular, it is held that Be-10 production rates in the atmosphere depend on the strength of the Earth's magnetic field, and the fallout and deposition of cosmogenic beryllium at the surface happen on a very short time scale. However, investigations performed on terrestrial and marine successions demonstrate that the Be-10 record and the paleomagnetic signal are often asynchronous. Mechanisms that control the conveyance and deposition of cosmogenic Be-10 to the seafloor are still ambiguous and poorly documented. Here, we discuss the dynamics of Be-10 in a central Mediterranean marginal marine depositional scenario characterized by a pervasive terrigenous influx. Our data show that a very close correlation exists between Be-10 concentrations and the local proxy of rainfall rates and regimes (pollen), indicating that a considerable Be-10 transport from the mainland may occur in response to the remobilization of terrestrial reservoirs during periods of increased runoff. Superimposed is a dynamic oceanographic setting that further controls the preservation potential of Be-10 at the bottom, in terms of changing water chemistry and/or composition of the sedimentary flux to the seafloor. Results of our investigation suggest that, in particular environmental and depositional settings, the interplay between climate, terrigenous yield and oceanography may jeopardize the sedimentary depiction of the meteoric Be-10 contribution, thus challenging the use of Be-10 for tracking the stratigraphic position of geomagnetic reversals. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	UniVersity of Padova, Italy
WOS关键词	VALLE DI MANCHE ; FORE-ARC BASIN ; MIDDLE PLEISTOCENE TRANSITION ; GEOMAGNETIC-FIELD INTENSITY ; DIPOLE-MOMENT VARIATION ; SOUTH-WESTERN PART ; LOWER KAZUSA GROUP ; OF-THE-ART ; CROTONE BASIN ; BOSO PENINSULA
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000501392800014
资助机构	UniVersity of Padova, Italy
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13024]
专题	地球环境研究所_加速器质谱中心
通讯作者	Capraro, Luca
作者单位	1.CNR, IGG, Via G Gradenigo 6, I-35131 Padua, Italy 2.Univ Padua, Dipartimento Geosci, Via G Gradenigo 6, I-35131 Padua, Italy 3.Univ Ca Foscari Venezia, Dipartimento Sci Ambientali Informat & Stat, Via Torino 155, I-30172 Venice, Italy 4.Ist Nazl Geofis & Vulcanol, Via Vigna Murata 605, I-00143 Rome, Italy 5.Univ Bologna, Dipartimento Sci Biol Geol & Ambientali, Via Zamboni 63-67, I-40126 Bologna, Italy 6.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 7.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry & A, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Capraro, Luca,Tateo, Fabio,Ferretti, Patrizia,et al. A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?[J]. QUATERNARY SCIENCE REVIEWS,2019,226:20.
APA	Capraro, Luca.,Tateo, Fabio.,Ferretti, Patrizia.,Fornaciari, Eliana.,Macri, Patrizia.,...&Xie, Xingjun.(2019).A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?.QUATERNARY SCIENCE REVIEWS,226,20.
MLA	Capraro, Luca,et al."A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?".QUATERNARY SCIENCE REVIEWS 226(2019):20.