globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.04.010
Scopus记录号: 2-s2.0-84900446940
论文题名:
Major explosive activity in the Monti Sabatini Volcanic District(central Italy) over the 800-390ka interval: Geochronological-geochemical overview and tephrostratigraphic implications
作者: Marra F.; Sottili G.; Gaeta M.; Giaccio B.; Jicha B.; Masotta M.; Palladino D.M.; Deocampo D.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 94
起始页码: 74
结束页码: 101
语种: 英语
英文关键词: Central Italy ; Geochemistry ; Geochronology ; High-K magmatism ; Monti Sabatini Volcanic District ; Tephrostratigraphy
Scopus关键词: Analytical geochemistry ; Geochemistry ; Geochronology ; Glass ; Stratigraphy ; Trace elements ; Central Italy ; Discrimination diagram ; Distal tephra layers ; Geochemical analysis ; Innovative approaches ; Magmatisms ; Tephrostratigraphy ; Volcanic district ; Volcanoes ; data set ; dating method ; geochemical method ; isotopic analysis ; tephrochronology ; volcanic eruption ; Adriatic Sea ; Italy ; Lazio ; Mediterranean Sea ; Sabatini Mountains ; Viterbo
英文摘要: A review of the existing chronological, stratigraphic and chemo-petrologic data of the major eruptive units from the early phase of activity (800-390ka) in the Monti Sabatini Volcanic District (MSVD), belonging to the ultra-potassic magmatic region of central Italy, is presented along with new radioisotopic age determinations and geochemical analyses. Through the combined use of electron microprobe glass compositions, selected trace-element compositions, and single-crystal 40Ar/39Ar age determinations, we provide a new chrono- and chemo-stratigraphic classification of the products emplaced in the 800-390ka time interval. Besides giving insights on the petrologic evolution of the Roman Comagmatic Region, the large dataset provides fundamental information that is applicable to tephrostratigraphic studies in the wide region encompassing the Tyrrhenian Sea margin to the Adriatic Sea basin. Distal tephras from this volcanic activity also act as important geochronologic markers for the coastal sedimentary successions deposited in response to glacio-eustatic fluctuations, as well as for successions in the Quaternary tectonic basins of the Central and Southern Apennines. An innovative approach based on the use of discrimination diagrams of Zr/Y vs Nb/Y ratios for fingerprinting altered volcanic rocks - recently developed and successfully employed in archaeometric studies - is here combined to the glass compositions for classifying the MSVD deposits and tested on two distal tephra layers, showing its potentiality for tephrostratigraphic correlation. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60258
Appears in Collections:过去全球变化的重建

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作者单位: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00147 Rome, Italy; Istituto di Geologia Ambientale e Geoingegneria, CNR, Montelibretti, Rome, Italy; Dipartimento di Scienze della Terra, Sapienza-Università di Roma, Rome, Italy; Department of Geoscience, University of Wisconsin-Madison, United States; Department of Geosciences, Georgia State University, Atlanta, United States; Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany

Recommended Citation:
Marra F.,Sottili G.,Gaeta M.,et al. Major explosive activity in the Monti Sabatini Volcanic District(central Italy) over the 800-390ka interval: Geochronological-geochemical overview and tephrostratigraphic implications[J]. Quaternary Science Reviews,2014-01-01,94
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