Miocene to Recent tephrostratigraphy offshore Central America: Evolution, Provenance and Cyclicities

中新世到近海中美洲近海地层学:演化、起源和循环性

基本信息

项目摘要

IODP Expeditions 334 and 344 offshore Costa Rica recovered sediments with numerous marine tephras down to the middle Miocene. Together with the marine tephras of former DSDP and ODP cruises offshore Central America as well as correlative Neogene tephras from on-land an overwhelming data set of major and partly trace elements has been acquired in the last 16 months (995 marine tephras, 282 field tephras). This facilitated first correlation between drill Legs, sites and Holes as well as on-shore tephras. Compilation of data showed that temporal and spatial changes in the marine and on-land tephras occur along the Central American Volcanic Arc (CAVA) within the Neogene, that Cocos Ridge subduction took place at least before 1.8 Ma and is probably accompanied by subduction of Galapgos-like crust in N-Costa Rica before, influencing the arc volcanism in this segment. Furthermore, there is indeed a significant contribution of an explosive phase from the Galapagos Hot Spot within the Miocene marine sediments on the Cocos Ridge. Using our data set we are also able to find hidden volcanic centres along the CAVA and there is the possibility that the longevity of existing volcanic complexes exceed our actual knowledge by far. Referring to our analysed data there are also reasonable evidences for cyclic abundance of explosive volcanism at the CAVA. The detailed elaboration on these topics, together with remaining analysis of trace elements and determination of ages, will lead to a complete tephrochronostratigraphic framework for the Neogen explosive volcanism of Central America and highlight the compositional and temporal relationships between subduction input and arc output along the whole Neogene Central American Volcanic Arc.
IODP第334号和第344号考察队在哥斯达黎加近海发现了大量的海洋火山岩沉积物,一直到中新世中期。在过去的16个月里,与前DSDP和ODP中美洲近海巡航的海洋火山岩以及来自陆地的相关新近纪火山岩一起,获得了大量的主要和部分微量元素数据集(995个海洋火山岩,282个野外火山岩)。这促进了钻柱、位置和孔以及陆上火山岩之间的首次关联。资料整理表明,新近纪以来,中美洲火山弧(CAVA)沿线海陆火山岩的时空变化沿着,Cocos海岭俯冲至少发生在1.8Ma之前,并可能伴随着北哥斯达黎加类加拉帕戈斯地壳的俯冲,影响了该段的弧火山活动。此外,确实有一个显着的贡献,从加拉帕戈斯热点内的中新世海洋沉积物的科科斯岭的爆发阶段。利用我们的数据集,我们还能够发现沿CAVA沿着隐藏的火山中心,现有火山复合体的寿命可能远远超过我们的实际知识。根据我们的分析数据,也有合理的证据表明,在CAVA周期丰富的爆发性火山活动。对这些问题的详细阐述,以及剩余的微量元素分析和年龄测定,将导致一个完整的火山灰年代地层框架的新第三纪爆发火山作用的中美洲和突出俯冲输入和弧输出之间的成分和时间关系沿着整个新第三纪中美洲火山弧。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Late Cenozoic tephrostratigraphy offshore the southern Central American Volcanic Arc: 1. Tephra ages and provenance
  • DOI:
    10.1002/2016gc006503
  • 发表时间:
    2016-11
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    J. Schindlbeck;S. Kutterolf;A. Freundt;G. Alvarado;K.‐L. Wang;S. Straub;S. Hemming;M. Frische;J. Woodhead
  • 通讯作者:
    J. Schindlbeck;S. Kutterolf;A. Freundt;G. Alvarado;K.‐L. Wang;S. Straub;S. Hemming;M. Frische;J. Woodhead
Alkalic marine tephra layers at ODP Site 1241 - Major explosive eruptions from an oceanic volcano in a pre-shield stage?
ODP 站点 1241 的碱性海洋火山灰层 - 处于屏蔽前阶段的海洋火山发生重大爆炸性喷发?
Late Cenozoic tephrostratigraphy offshore the southern Central American Volcanic Arc: 2. Implications for magma production rates and subduction erosion
中美洲南部火山弧近海的晚新生代地层地层学:对岩浆生产率和俯冲侵蚀的 2 个影响
  • DOI:
    10.1002/2016gc006504
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Schindlbeck;Kutterolf;Freundt;Straub;Vannucchi;Alvarado
  • 通讯作者:
    Alvarado
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Privatdozent Dr. Steffen Kutterolf其他文献

Privatdozent Dr. Steffen Kutterolf的其他文献

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{{ truncateString('Privatdozent Dr. Steffen Kutterolf', 18)}}的其他基金

Traces of explosive eruptions in Cretaceous to Quaternary Indian Ocean sediments.
白垩纪至第四纪印度洋沉积物中爆​​炸性喷发的痕迹。
  • 批准号:
    407425515
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Zircon in tephra as a novel tool to decrypt geologic and archaeological archives: a case study from Central America
火山灰中的锆石作为解密地质和考古档案的新工具:中美洲的案例研究
  • 批准号:
    368993339
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Tephrochronology of lacustrine ash layers in Lake Petén Itzá sediments: Implications for regional volcanology and Central American palaeoclimate
佩滕伊察湖沉积物中湖相灰层的年代学:对区域火山学和中美洲古气候的影响
  • 批准号:
    252760755
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Provenance and depositional processes of tephras and Tertiary volcaniclastic sandstones from IODP Expedition 322, Nankai Trough
南海海槽IODP 322探险队火山灰岩和第三系火山碎屑砂岩的物源和沉积过程
  • 批准号:
    179387903
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Tephrochronostratigraphy in marine and terrestrial sediments of New Zealand: Benchmark for Miocene to Quaternary explosive volcanism
新西兰海洋和陆地沉积物的岩石年代地层学:中新世至第四纪爆发性火山活动的基准
  • 批准号:
    428064658
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Systematic variations in the eruptive history of the Christiana-Santorini-Kolumbo volcanic field (Greece) - The IODP Expedition 398 tephra time series and its implications
克里斯蒂安娜-圣托里尼-科伦博火山场(希腊)喷发历史的系统变化 - IODP Expedition 398 tephra 时间序列及其含义
  • 批准号:
    527924707
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes

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