Collaborative Research: Investigating the Processes and Timescales of Andesite Differentiation: A Comprehensive Petrological and Geochemical Study of Arenal Volcano, Costa Rica

合作研究:调查安山岩分异的过程和时间尺度:哥斯达黎加阿雷纳尔火山的综合岩石学和地球化学研究

基本信息

  • 批准号:
    0207316
  • 负责人:
  • 金额:
    $ 9.41万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2002
  • 资助国家:
    美国
  • 起止时间:
    2002-06-01 至 2003-11-30
  • 项目状态:
    已结题

项目摘要

Collaborative Research: Investigating the processes and timescales of andesite differentiation: a comprehensive petrological and geochemical study of Arenal Volcano, Costa RicaEAR-0207185; EAR-0207287; EAR-0207761; EAR-0207316PIs: Gill; Reagan; Tepley; GardnerArenal Volcano in Costa Rica is an excellent natural laboratory in which to test specific hypotheses regarding differentiation mechanisms and the timescales of magmatic processes and their relationship to eruptions. Our objective is to undertake a multi-pronged petrological and geochemical investigation to take advantage of existing data and models. The on-going eruption of Arenal volcano has undergone complex changes in eruptive behavior, and a crucial question is whether those changes relate to different magma storage conditions, such as varying depths and hence initial volatile contents, or to different degassing styles and rates. We will investigate this important issue through several techniques. We seek to determine the timescales of degassing, the residence times and ascent rate of degassed magmas, and the timescales of degassing-induced plagioclase crystallization. We will measure short-lived nuclides within the uranium decay series to constrain the timescales of magmatic processes as well as measure the long-lived isotopic compositions of whole rocks, and mineral separates and individual minerals in the case of Sr, to determine whether there is evidence for involvement of isotopically distinct components during differentiation processes. Lastly, we will measure a suite of major- and trace-element concentrations to evaluate the secular change in Arenal lava composition.The data from these tests will help answer questions such as whether rates of differentiation depend on the depth and degree of crystallization and on the extent and character of degassing; whether crystal and magma residence times can be as short as days to months during near steady-state eruptions of andesite; whether within-eruption changes of magma composition are caused by open-system processes of fractional crystallization plus recharge or assimilation or both; and whether eruption styles are related to degassing history and magma residence time.
协作研究:调查安山岩分化的过程和时间尺度:哥斯达黎加Ricaear-0207185的Aranal火山的全面岩石学和地球化学研究; EAR-0207287; EAR-0207761; EAR-0207316PIS:Gill;里根特普利;哥斯达黎加的Gardnerarenal火山是一个出色的天然实验室,在该实验室中,旨在测试有关分化机制和岩浆过程的时间尺度及其与喷发的关系的特定假设。我们的目标是进行多管齐下的岩石学和地球化学研究,以利用现有的数据和模型。阿雷纳尔火山的持续爆发发生了爆发行为的复杂变化,一个关键的问题是这些变化是否与不同的岩浆存储条件有关,例如不同的深度,因此与初始挥发性含量有关,还是与不同的脱气样式和速率和速率和速率。我们将通过几种技术调查这个重要问题。我们寻求确定脱气的时间尺度,脱气岩浆的停留时间和上升速度以及脱气引起的斜长石结晶的时间尺度。我们将测量铀衰减系列中的短寿命核素,以限制岩浆过程的时间尺度,并测量整个岩石的长寿命同位素组成,以及在SR的情况下,矿物质分离和单个矿物质,以确定是否存在鉴于分化过程中同位素不同组分的参与的证据。最后,我们将测量一组主要元素和痕量元素浓度,以评估Arenal熔岩组成的世俗变化。这些测试的数据将有助于回答诸如分化率是否取决于结晶的深度和程度以及脱气的程度和特征。晶体和岩浆的停留时间是否可以在安山岩近地爆发的几天到几个月内短暂。岩浆成分的爆发变化是否是由分数结晶的开源过程以及补给或同化的开放系统过程,还是两者兼而有之。以及喷发样式是否与脱气历史和岩浆停留时间有关。

项目成果

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James Gardner其他文献

PARADOXICAL EMBOLISM FROM A THROMBUS STRADDLING A PATIENT FORAMEN OVALE
  • DOI:
    10.1016/s0735-1097(18)32983-8
  • 发表时间:
    2018-03-10
  • 期刊:
  • 影响因子:
  • 作者:
    James Gardner;Faheem Ahmad;Islam Badawy;Mohamed Arekat
  • 通讯作者:
    Mohamed Arekat
VOFDM broadband wireless transmission and its advantages over single carrier modulation
VOFDM宽带无线传输及其相对于单载波调制的优势
Phase diagrams of CoSO<sub>4</sub>-H<sub>2</sub>O and CoSO<sub>4</sub>-H<sub>2</sub>SO<sub>4</sub>-H<sub>2</sub>O systems for CoSO<sub>4</sub>·nH<sub>2</sub>O (<em>n</em> = 6,7) recovery by cooling and eutectic freeze crystallization
  • DOI:
    10.1016/j.hydromet.2024.106332
  • 发表时间:
    2024-08-01
  • 期刊:
  • 影响因子:
  • 作者:
    Yiqian Ma;Mohammadreza Akbarkermani;Michael Svärd;Xiong Xiao;Suchithra Ashoka Sahadevan;James Gardner;Richard T. Olsson;Kerstin Forsberg
  • 通讯作者:
    Kerstin Forsberg
Participation, Learning and Environmental Justice: A Case Study of Protected Area Planning and Management in the Kullu District of Himachal Pradesh, India
参与、学习和环境正义:印度喜马偕尔邦库尔卢地区保护区规划和管理案例研究
  • DOI:
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    1.6
  • 作者:
    Ariane Dilay;A. J. Sinclair;A. Diduck;James Gardner
  • 通讯作者:
    James Gardner
96. Dual medial branch blocks and progression to radiofrequency neurotomy for zygapophysial arthropathy
  • DOI:
    10.1016/j.spinee.2021.05.121
  • 发表时间:
    2021-09-01
  • 期刊:
  • 影响因子:
  • 作者:
    David Sherwood;Evan Berlin;Adam C. Epps;James Gardner;Sterling Haring;Byron J. Schneider
  • 通讯作者:
    Byron J. Schneider

James Gardner的其他文献

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{{ truncateString('James Gardner', 18)}}的其他基金

NSF GEO-NERC: Collaborative Research: A general model for bubble nucleation and growth in volcanic systems
NSF GEO-NERC:协作研究:火山系统中气泡成核和生长的通用模型
  • 批准号:
    2211627
  • 财政年份:
    2022
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Collaborative Research: Experimental and Numerical Constraints on Density Evolution, Buoyancy Reversal, and Runout Distance in Pyroclastic Density Currents
合作研究:火山碎屑密度流中密度演化、浮力反转和跳动距离的实验和数值约束
  • 批准号:
    1852449
  • 财政年份:
    2019
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Collaborative Research: What Do Obsidian Pyroclasts Tell Us? Constraints from Textures, Volatiles, and Experiments
合作研究:黑曜石火碎屑告诉我们什么?
  • 批准号:
    1725186
  • 财政年份:
    2017
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Collaborative Research: A Self-consistent Model for Bubble Nucleation During Plinian Volcanic Eruptions
合作研究:普林尼火山喷发期间气泡成核的自洽模型
  • 批准号:
    1348050
  • 财政年份:
    2014
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Collaborative Research: Degassing-based constraints on the dynamics of submarine eruptions
合作研究:基于脱气的海底喷发动力学约束
  • 批准号:
    1333882
  • 财政年份:
    2013
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Acquisition of a Piston Cylinder Apparatus for Research in Experimental Petrology and Mineral Physics
购买用于实验岩石学和矿物物理研究的活塞缸装置
  • 批准号:
    1053889
  • 财政年份:
    2011
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Collaborative Research: The Dynamics of Rhyolite Lava Eruption and Emplacement Inferred from Micro-Textures, Decompression Experiments, and Numerical Modeling
合作研究:从微观结构、减压实验和数值模拟推断流纹岩熔岩喷发和就位的动力学
  • 批准号:
    1049829
  • 财政年份:
    2011
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Standard Grant
Bubble Nucleation in Magmas: Experimental Constraints on the Influences of Gas and Melt Composition
岩浆中的气泡成核:气体和熔体成分影响的实验约束
  • 批准号:
    0738664
  • 财政年份:
    2008
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Continuing Grant
The Record of Recharge, Assimilation, and Storage in the Popocatepetl Magma System from Sr Isotopes and Glass Inclusions in Phenocrysts and Experimental Petrologic Constraints
波波卡特佩特尔岩浆系统中斑晶中锶同位素和玻璃包裹体的补给、同化和储存记录以及实验岩石学约束
  • 批准号:
    0711043
  • 财政年份:
    2007
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Continuing Grant
Collaborative Research: Violent Basaltic Explosive Volcanism II: Constraints and Conditions of Basaltic Plinian Eruptions
合作研究:猛烈的玄武岩爆发性火山活动II:玄武岩普林尼式喷发的约束和条件
  • 批准号:
    0537168
  • 财政年份:
    2006
  • 资助金额:
    $ 9.41万
  • 项目类别:
    Continuing Grant

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