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A Mediterranean perspective on Be-10, sedimentation and climate around the Matuyama/Brunhes boundary: les liaisons dangereuses?
Capraro, Luca1; Tateo, Fabio2; Ferretti, Patrizia3; Fornaciari, Eliana1; Macri, Patrizia4; Scarponi, Daniele5; Preto, Nereo1; Xian, Feng6,7; Kong, Xianghui6,7; Xie, Xingjun6,7
Corresponding AuthorCapraro, Luca(luca.capraro@unipd.it)
2019-12-15
Source PublicationQUATERNARY SCIENCE REVIEWS
ISSN0277-3791
Volume226Pages:20
AbstractThe 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.
DOI10.1016/j.quascirev.2019.106039
WOS KeywordVALLE 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
Indexed BySCI ; SCI
Language英语
Funding ProjectUniVersity of Padova, Italy
WOS Research AreaPhysical Geography ; Geology
Funding OrganizationUniVersity of Padova, Italy
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000501392800014
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/13025
Collection加速器质谱中心
Corresponding AuthorCapraro, Luca
Affiliation1.Univ Padua, Dipartimento Geosci, Via G Gradenigo 6, I-35131 Padua, Italy
2.CNR, IGG, 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
Recommended Citation
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.
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