Late Pleistocene stratigraphy of IODP Site U1396 and compiled chronology offshore of south and south west Montserrat, Lesser Antilles

Late Pleistocene stratigraphy of IODP Site U1396 and compiled chronology offshore of south and south west Montserrat, Lesser Antilles
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IODP 站点 U1396 晚更新世地层和小安的列斯群岛蒙特塞拉特岛南部和西南部近海编年表

DOI:
10.1002/2014gc005402
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发表时间:
2014
期刊:
Geochemistry, Geophysics, Geosystems
影响因子:
--
通讯作者:
Wall-Palmer D
Wall-Palmer D
中科院分区:
--
文献类型:
--
作者:
Wall-Palmer D

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火山岛周围的海洋沉积物包含火山沉积物档案,可用于重建一个地区的火山历史。这种记录比通常不完整的地面数据集有许多优点。这包括对中间沉积物包进行精确和连续定年的潜力,这使得可以在多个海洋沉积物岩心上构建可重复的和时间上受限制的地层框架。在这里,我们讨论了海洋记录的爆发和质量浪费事件跨越250万年的蒙特塞拉特近海,使用新的数据从IODP远征340,以及以前收集的核心。通过结合高分辨率氧同位素地层学、AMS放射性碳测年、有孔虫和钙质超微化石生物地层学以及碎屑成分,我们确定了苏弗里埃山火山自250 ka以来的5次重大事件。这些事件在蒙特塞拉特南部和西南部近海收集的沉积物岩心之间的横向相关性,使我们更好地了解了这一地区事件的时间、程度和关联。相关性表明,强大的和潜在的侵蚀性密度流至少在离岸33公里处传播,并表明火山岛上的火山喷发和质量浪费事件产生的海洋沉积物在空间分布上是异质的。因此,需要多个钻探/取芯地点来重建火山岛的完整年代地层。这项多学科的研究将是至关重要的解释混乱的记录在其他网站的海底滑坡在探险340期间钻探,并提供了一个框架,可应用于其他火山岛周围的沉积物的地层分析。
Marine sediments around volcanic islands contain an archive of volcaniclastic deposits, which can be used to reconstruct the volcanic history of an area. Such records hold many advantages over often incomplete terrestrial data sets. This includes the potential for precise and continuous dating of intervening sediment packages, which allow a correlatable and temporally constrained stratigraphic framework to be constructed across multiple marine sediment cores. Here we discuss a marine record of eruptive and mass‐wasting events spanning ∼250 ka offshore of Montserrat, using new data from IODP Expedition 340, as well as previously collected cores. By using a combination of high‐resolution oxygen isotope stratigraphy, AMS radiocarbon dating, biostratigraphy of foraminifera and calcareous nannofossils, and clast componentry, we identify five major events at Soufriere Hills volcano since 250 ka. Lateral correlations of these events across sediment cores collected offshore of the south and south west of Montserrat have improved our understanding of the timing, extent and associations between events in this area. Correlations reveal that powerful and potentially erosive density‐currents traveled at least 33 km offshore and demonstrate that marine deposits, produced by eruption‐fed and mass‐wasting events on volcanic islands, are heterogeneous in their spatial distribution. Thus, multiple drilling/coring sites are needed to reconstruct the full chronostratigraphy of volcanic islands. This multidisciplinary study will be vital to interpreting the chaotic records of submarine landslides at other sites drilled during Expedition 340 and provides a framework that can be applied to the stratigraphic analysis of sediments surrounding other volcanic islands.
DOI: 10.1016/j.margeo.2012.10.004
发表时间: 2013
期刊: Marine Geology
影响因子: 2.9
作者:
G. Crutchley;J. Karstens;C. Berndt;P. Talling;S. Watt;M. Vardy;V. Hühnerbach;M. Urlaub;S. Sarkar;D. Klaeschen;M. Paulatto;A. Friant;E. Lebas;F. Maeno
通讯作者: G. Crutchley;J. Karstens;C. Berndt;P. Talling;S. Watt;M. Vardy;V. Hühnerbach;M. Urlaub;S. Sarkar;D. Klaeschen;M. Paulatto;A. Friant;E. Lebas;F. Maeno
DOI: 10.2307/1484180
发表时间: 1956-07
期刊: Micropaleontology
影响因子: 1.5
作者:
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通讯作者: D. B. Ericson;G. Wollin
1997 年 12 月 26 日(节礼日)蒙特塞拉特岛苏弗里耶尔山火山发生碎片雪崩和剧烈的火山碎屑密度流
DOI: --
发表时间: 2002
期刊: Geological Society of London Memoirs
影响因子: --
作者:
R. Sparks;J. Barclay;E. Calder;R. Herd;J. Komorowski;R. Luckett;G. Norton;L. Ritchie;B. Voight;Andrew W. Woods
通讯作者: Andrew W. Woods
火山岛长期演化过程中发生的多次广泛的山体滑坡:高分辨率地震数据的见解,蒙特塞拉特岛,小安的列斯群岛
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
E. Lebas;A. Friant;G. Boudon;Sebastian F. L. Watt;P. Talling;N. Feuillet;C. Deplus;Christian Berndt;Christian Berndt;M. Vardy
通讯作者: M. Vardy
海底火山碎屑沉积物的侵位过程(IODP Site C0011,南海海槽)
DOI: 10.1016/j.margeo.2013.06.017
发表时间: 2013
期刊: Marine Geology
影响因子: 2.9
作者:
Schindlbeck J.C;Kutterolf S;Freundt A;Scudder R.P. Pickering K.T;Murray R.W.
通讯作者: Murray R.W.