Advancing Santorini’s tephrostratigraphy: New glass geochemical data and improved marine-terrestrial tephra correlations for the past ∼360 kyrs

Advancing Santorini’s tephrostratigraphy: New glass geochemical data and improved marine-terrestrial tephra correlations for the past ∼360 kyrs
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推进圣托里尼岛的火山地层学:新的玻璃地球化学数据和改进的过去 360 kyrs 的海洋-陆地火山灰相关性

DOI:
10.1016/j.earscirev.2019.102964
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发表时间:
2020
影响因子:
12.1
通讯作者:
Schulz
Schulz
中科院分区:
地球科学1区
文献类型:
--
作者:
Keller;Gertisser;Appelt;Vakhrameeva;Koutsodendris;Hardiman;Schulz

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爱琴海的圣托里尼岛是世界上最猛烈的活火山之一。至少在过去的360年里,圣托里尼岛产生了多次高度爆炸性的喷发,这由该岛独特的近端特弗拉记录所记录。然而,缺乏准确的喷发年龄和近端冰盖的全面玻璃地球化学数据集,长期以来阻碍了圣托里尼喷发详细的远端火山地层学的发展。根据这些要求,这项研究开发了覆盖过去∼360千年的圣托里尼岛的远端盖层地层学,这是朝着建立东地中海地区的盖层地层格架迈出的重要一步。我们提供了12个普林尼期喷发和众多普林尼期间圣托里尼喷发的近端Tephra矿床的新的EPMA玻璃地球化学数据,并利用这个数据集建立了来自三个爱琴海岩芯(KL49、KL51和LC21)的28个远海冰盖岩属特定火山事件的归属。根据腐泥岩芯年表的插值法,我们提供了相关圣托里尼冰盖的新的喷发年龄估计,包括上斯科利尼亚大喷发的日期1(80.8 ± 2.9ka),伏尔沃洛斯(126.5 ± 2.9ka),中浮岩(141.0 ± 2.6ka),塞拉角(156.9 ± 2.3ka),下浮岩2(176.7 ± 0.6ka),下浮岩1(185.7 ± 0.7ka),和塞尔马角3(200.2 ± 0.9ka),但也有17个国际普林尼安事件。∼310ka至370ka之间较古老的普林尼期和普林尼期间的活动被记录在希腊东北部特纳吉·菲利彭的远端陆地环境中,由孢粉地层学独立确定年代,补充了远端圣托里尼火山地层学记录。
The island of Santorini in the Aegean Sea is one of the world’s most violent active volcanoes. Santorini has produced numerous highly explosive eruptions over at least the past ∼360 kyrs that are documented by the island’s unique proximal tephra record. However, the lack of precise eruption ages and comprehensive glass geochemical datasets for proximal tephras has long hindered the development of a detailed distal tephrostratigraphy for Santorini eruptions. In light of these requirements, this study develops a distal tephrostratigraphy for Santorini covering the past ∼360 kyrs, which represents a major step forward towards the establishment of a tephrostratigraphic framework for the Eastern Mediterranean region. We present new EPMA glass geochemical data of proximal tephra deposits from twelve Plinian and numerous Inter-Plinian Santorini eruptions and use this dataset to establish assignments of 28 distal marine tephras from three Aegean Sea cores (KL49, KL51 and LC21) to specific volcanic events. Based on interpolation of sapropel core chronologies we provide new eruption age estimates for correlated Santorini tephras, including dates for major Plinian eruptions, Upper Scoriae 1 (80.8 ± 2.9 ka), Vourvoulos (126.5 ± 2.9 ka), Middle Pumice (141.0 ± 2.6 ka), Cape Thera (156.9 ± 2.3 ka), Lower Pumice 2 (176.7 ± 0.6 ka), Lower Pumice 1 (185.7 ± 0.7 ka), and Cape Therma 3 (200.2 ± 0.9 ka), but also for 17 Inter-Plinian events. Older Plinian and Inter-Plinian activity between ∼310 ka and 370 ka, documented in the distal terrestrial setting of Tenaghi Philippon (NE Greece), is independently dated by palynostratigraphy and complements the distal Santorini tephrostratigraphic record.
DOI: 10.1038/srep45940
发表时间: 2017-04-06
期刊: Scientific reports
影响因子: 4.6
作者:
Giaccio B;Hajdas I;Isaia R;Deino A;Nomade S
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在土耳其西部发现圣托里尼米诺斯火山灰
DOI: --
发表时间: 1988
期刊: Nature
影响因子: 64.8
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D. Sullivan
通讯作者: D. Sullivan
DOI: --
发表时间: 1981
期刊:
影响因子: --
作者:
C. H. Nielsen;H. Sigurdsson
通讯作者: H. Sigurdsson
希腊圣托里尼岛普林尼式下浮石 2 号喷发:岩浆演化和挥发行为
DOI: 10.1016/j.jvolgeores.2009.07.015
发表时间: 2009
影响因子: 2.9
作者:
R. Gertisser;K. Preece;J. Keller
通讯作者: J. Keller
DOI: 10.1007/s00410-011-0648-x
发表时间: 2011-05
影响因子: 3.5
作者:
A. Schmitt;M. Danišík;N. Evans;W. Siebel;Elena Kiemele;F. Aydın;Janet Harvey
通讯作者: A. Schmitt;M. Danišík;N. Evans;W. Siebel;Elena Kiemele;F. Aydın;Janet Harvey