First integrated tephrochronological record for the last ∼190 kyr from the Fucino Quaternary lacustrine succession, central Italy

被引：80

作者：

Giaccio, Biagio ^{[1
]}

Niespolo, Elizabeth M. ^{[2
,3
]}

Pereira, Alison ^{[4
,5
,6
,7
]}

Nomade, Sebastien ^{[4
]}

Renne, Paul R. ^{[2
,3
]}

Albert, Paul G. ^{[8
]}

Arienzo, Ilenia ^{[9
]}

Regattieri, Eleonora ^{[1
,10
]}

Wagner, Bernd ^{[10
]}

Zanchetta, Giovanni ^{[11
]}

Gaeta, Mario ^{[12
]}

Galli, Paolo ^{[1
,13
]}

Mannella, Giorgio ^{[11
]}

Peronace, Edoardo ^{[1
]}

Sottili, Gianluca ^{[1
]}

Florindo, Fabio ^{[1
,14
]}

Leicher, Niklas ^{[10
]}

Marra, Fabrizio ^{[14
]}

Tomlinson, Emma L. ^{[15
]}

机构：

[1] CNR, Ist Geol Ambientale & Geoingn, Rome, Italy

[2] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[3] Berkeley Geochronol Ctr, Berkeley, CA USA

[4] CEA CNRS UVSQ, Lab Sci Climat & Environm, Gif Sur Yvette, France

[5] Ecole Francaise Rome, Rome, Italy

[6] Museum Natl Hist Nat, Dept Prehist, Paris, France

[7] Univ Ferrara, Dipartimento Studi Umanistici, Sez Sci Preistor & Antropol, Ferrara, Italy

[8] Univ Oxford, RLAHA, Oxford, England

[9] Ist Nazl Geofis & Vulcanol, Sez Osservatorio Vesuviano, Naples, Italy

[10] Univ Cologne, Inst Geol & Mineral, Cologne, Germany

[11] Univ Pisa, Dipartimento Sci Terra, Pisa, Italy

[12] Univ Roma La Sapienza, Dipartimento Sci Terra, Rome, Italy

[13] Dipartimento Protez Civile Nazl, Rome, Italy

[14] Ist Nazl Geofis & Vulcanol, Sez Roma 1, Rome, Italy

[15] Trinity Coll Dublin, Dept Geol, Dublin, Ireland

来源：

QUATERNARY SCIENCE REVIEWS | 2017年 / 158卷

基金：

美国国家科学基金会;

关键词：

Tephrochronology; 40Ar/39Ar geochronology; Sr-Nd isotopes; Central Mediterranean; SABATINI VOLCANIC DISTRICT; CAMPI-FLEGREI CALDERA; TIME-DEPENDENT GEOCHEMISTRY; ROMAN MAGMATIC PROVINCE; STABLE-ISOTOPE RECORD; GRANDE-DI-MONTICCHIO; COLLI ALBANI VOLCANO; EXPLOSIVE ACTIVITY; SR-ND; TEPHRA LAYERS;

D O I：

10.1016/j.quascirev.2017.01.004

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

We present the first integrated tephrochronological study (major and trace elemental glass composition, Sr and Nd isotope analyses, and 40Ar/39Ar dating) for the last one tenth (similar to 82 m) of the similar to 900 m-thick Quaternary lacustrine succession of the Fucino Basin, the largest and probably only Central Apennine intermountain tectonic depression that hosts a continuous lacustrine succession documenting the PlioQuaternary sedimentary history up to historical times. Major element glass compositions, determined using a wavelength -dispersive electron microprobe (WDS-EMPA), yielded the geochemical fingerprinting needed for a reliable identification of most of the 23 stratigraphically ordered tephra layers under investigation. These include tephra from Italian volcanoes such as Campi Flegrei, Etna, Colli Albani, Ischia, Vico, Sabatini, and undefined volcanic sources in the Neapolitan area and Latium region. The recognition of key Mediterranean marker tephra layers (e.g. X-5 and X-6) is supported by trace element data acquired by Laser Ablation Inductively Couple Plasma Mass Spectrometry (LA-ICP-MS). The Sr and Nd isotope compositions of selected layers where also determined for circumscribing the volcanic source of distal tephra and for supporting correlations with individual eruptive units. We also propose a new, more expeditious covariation diagram (CaO/FeOtot vs Cl) for identifying the volcanic source of trachytic to phonolitic and tephrytic to phonolitic tephra, that are the most common compositions of pyroclastic rocks from volcanoes of Campania and Latium regions. Finally, we present five new 40Ar/39Ar age determinations, including a new, analytically well -supported, and more precise 40Ar/39Ar age for the widespread Y-7 tephra, and the first 40Ar/39Ar age determinations for one tephra from the Sabatini volcanic district (similar to 126 ka) and one tephra from Neapolitan volcanic area (Campi Flegrei?; similar to 159 ka). These newly dated tephra are widely dispersed (e.g. Monticchio, southern Italy, Adriatic Sea and Lake Ohrid, Macedonia-Abania) and have thus the potential to become important Mediterranean MIS 5 and MIS 6 tephrochronological markers. Altogether the new geochemical data and 40Ar/39Ar ages precisely constrain the chronology of the investigated Fucino succession spanning the last similar to 190 ka. In light of these results and by considering that this sedimentary succession possibly extends back to similar to 2 Ma, Fucino is likely to provide a very long, continuous tephrostratigraphic record for the Mediterranean area and become a key node in the dense network of tephra correlations of this region. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：211 / 234

页数：24

共 139 条

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