Petrological processes of Moho formation

莫霍面形成的岩石学过程

基本信息

  • 批准号:
    20244085
  • 负责人:
  • 金额:
    $ 30.12万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    2008
  • 资助国家:
    日本
  • 起止时间:
    2008 至 2011
  • 项目状态:
    已结题

项目摘要

Petrologic nature of Moho(Mohorovicic discontinuity), the shallowest of global physical discontinuities of the Earth's interior) has been investigated. Results of this study will guide the oceanic mantle drilling(Mohole) in the future. In the Oman ophiolite, a slice of Cretaceous oceanic lithosphere, the Mono transition zone(=MTZ), from 10 m to 1 km in thickness, is found between layered gabbro and the mantle peridotite(mainly harzburgite). The MTZ, mainly composed of dunites and wehrlites, becomes Mg-rich with an increase of its thickness, showing characteristics of a MORB/harzburgite reaction product. Beneath the island arc, the MTZ varies its petrologic characteristics through accretion of cumulates and hydration, and shows intense heterogeneities and varieties.
莫霍面(地球内部最浅的全球物理不连续面)的岩石学性质已得到研究。该研究结果将对未来大洋地幔钻探(Mohole)具有指导意义。阿曼蛇绿岩是白垩纪大洋岩石圈的一个切片,在层状辉长岩和地幔橄榄岩(主要是方辉橄榄岩)之间发现了厚度为 10 m 至 1 km 的莫诺过渡带(=MTZ)。 MTZ主要由纯橄榄岩和韦氏岩组成,随着厚度的增加而变得富镁,表现出MORB/方辉橄榄石反应产物的特征。在岛弧下方,MTZ 通过堆积物和水化作用改变其岩石学特征,并表现出强烈的非均质性和多样性。

项目成果

期刊论文数量(138)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Raman spectroscopy of hydrous inclusions in olivine and orthopyroxene in ophiolitic harzburgite : Implications for elementary processes in serpentinization
Possible recycled origin for ultrahigh-pressure chromitites in ophiolites
Ophiolitic chromitites : Origins and implications for mantle dynamics
蛇绿质铬铁矿:起源及其对地幔动力学的影响
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arai;S.
  • 通讯作者:
    S.
Calcic amphiboles in peridotite xenoliths from Avacha volcano, Kamchatka, and their implications for metasomatic conditions in the mantle wedge
堪察加阿瓦恰火山橄榄岩捕虏体中的钙质角闪石及其对地幔楔交代条件的影响
What do podiform chromitites tell us?
豆荚状铬铁矿告诉我们什么?
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arai;S.
  • 通讯作者:
    S.
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ARAI Shoji其他文献

ARAI Shoji的其他文献

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{{ truncateString('ARAI Shoji', 18)}}的其他基金

Oversea Research on the Bou-Azzer Ophiolite (Morocco) of Proterozoic Age
国外元古代布阿泽蛇绿岩(摩洛哥)研究
  • 批准号:
    16403010
  • 财政年份:
    2004
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
An integrated genefical model and exploration/evaluation system for chromittite and platinum-group element ores
铬铁矿、铂族元素矿综合成因模型及勘查评价体系
  • 批准号:
    13554017
  • 财政年份:
    2001
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Formation and modification of the mantle wedge : from the ocean to the confinent
地幔楔的形成和改造:从海洋到大陆
  • 批准号:
    13440161
  • 财政年份:
    2001
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Generation and reorganization of Oman oceanic crust-mantle
阿曼大洋壳幔的生成与重组
  • 批准号:
    11691121
  • 财政年份:
    1999
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A).
Origin of MORB deduced from the deep-seated rocks from the ocean floor
MORB 的起源由海底深层岩石推断
  • 批准号:
    10440152
  • 财政年份:
    1998
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Magma/mantle interaction and genesis of primitive magnas
岩浆/地幔相互作用和原始岩浆的成因
  • 批准号:
    07454131
  • 财政年份:
    1995
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Basic Study for a Catalogue of Upper Mantle Xenoliths in the Japan Island Arcs
日本岛弧上地幔包体目录的基础研究
  • 批准号:
    02640626
  • 财政年份:
    1990
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Water content in the uppermost mantle of the oceanic plate and its origin
海洋板块最上地幔的含水量及其来源
  • 批准号:
    19H01990
  • 财政年份:
    2019
  • 资助金额:
    $ 30.12万
  • 项目类别:
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Elucidations of the physical properties and actual condition of the crust-mantle boundary (Moho) by onshore drilling of the Oman Ophiolite
阿曼蛇绿岩陆上钻探阐明壳幔边界(莫霍面)的物理性质和实际状况
  • 批准号:
    16H02742
  • 财政年份:
    2016
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Physical properties of uppermost mantle structure and the Mohorovicic seismic discontinuity
最上地幔结构的物理性质和莫霍洛维奇地震不连续性
  • 批准号:
    16H06347
  • 财政年份:
    2016
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (S)
Elucidation of the mantle convection pattern in the shallow part of the subduction zone using natural samples
利用自然样本阐明俯冲带浅部地幔对流模式
  • 批准号:
    16K17820
  • 财政年份:
    2016
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Mid-Ocean ridge peridotites revisited: homogeneity/heterogeneity and the nature of the Oceanic plate
重温大洋中脊橄榄岩:同质性/异质性和大洋板块的性质
  • 批准号:
    26287134
  • 财政年份:
    2014
  • 资助金额:
    $ 30.12万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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