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
• 负责人: Privatdozent Dr. Steffen Kutterolf
• 金额: --
• 依托单位: Forschungseinheit Magmatische und Hydrothermale Systeme
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/179387903?language=en
• 关键词: Provenance; depositional; processes; tephras; Tertiary

During IODP Expedition 322 at the Nankai Trough, sediments down to the early Miocene have been drilled which allow to constrain the physical, compositional and structural characteristics of the subduction input into the seismogenic zone. We will use our samples from this expedition and samples from other Nankai bore holes to establish a Nankai-wide tephrostratigraphy including correlations with deposits on land; to identify provenance sources comprising the Miocene to recent Japanese and Izu-Bonin arc segments; to determine temporal and spatial variations in volcanic glass compositions since the Miocene; to unravel depositional processes of the newly discovered middle Shikoku basin formation; and to investigate the element exchange during submarine alteration of volcanic glass. Our chronological framework will provide the basis for other on- and offshore volcanological, sedimentological and geophysical studies aimed to understand the role of input parameters in the Nankai Trough subduction processes.

在Nankai槽的IODP Expedition 322期间，已经钻了到中新世早期的沉积物，从而可以将俯冲输入的物理，组成和结构性特征限制为地震生成区。我们将使用这次探险中的样品和其他南卡孔孔的样品来建立范围范围内的tephrostratatratatraphy，包括与土地上的沉积物相关；确定包括中新世的出处来源，包括最近的日本和伊祖 - 波宁弧段；确定自新世以来火山玻璃组成的时间和空间变化；揭开新发现的中间Shikoku盆地形成的重置过程；并调查在火山玻璃海底改变期间的元素交换。我们的年代框架将为其他跨越火山，沉积学和地球物理研究的基础提供基础，旨在了解输入参数在南卡凹槽俯冲过程中的作用。

项目成果

Emplacement processes of submarine volcaniclastic deposits (IODP Site C0011, Nankai Trough)

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.

Large volume submarine ignimbrites in the Shikoku Basin: An example for explosive volcanism in the Western Pacific during the Late Miocene

• DOI: 10.1002/2014gc005263
• 发表时间: 2014-05
• 期刊: Geochemistry
• 影响因子: 3.7
• 作者: S. Kutterolf;J. Schindlbeck;R. Scudder;R. Murray;K. Pickering;A. Freundt;S. Labanieh;K. Heydolph;S. Saito;H. Naruse;M. Underwood;Huaichun Wu