Collaborative Research: A High-Resolution, Multi-Isotopic Study of Upper Mantle Heterogeneity Beneath the Southeast Indian Ridge
合作研究:东南印度洋中脊下方上地幔异质性的高分辨率、多同位素研究
基本信息
- 批准号:1029616
- 负责人:
- 金额:$ 18.86万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-09-15 至 2015-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
It is well known that there are geographic variations in the melting conditions in Earth's mantle and that these are tied to differences in mantle temperature and composition. How these variations relate to the composition of lavas erupted along mid-ocean ridges, however, is not well known. This research focuses on analyzing the chemical similarities and differences in a unique set of closely spaced samples of basalt from 130 localities along 1200 km of ridge crest of the Southeast Indian Ridge in the Indian Ocean. Goals are to determine the spatial and temporal variation of seafloor lavas to a degree that is unprecedented for this part of the seafloor and relate the trends to underlying mantle processes. Samples that are already in-hand and were collected on an international expedition to the area in 2009 will be analyzed for the isotopes of He, Pb, Hf, and Sr. Forty samples will also be analyzed for He and He isotopes and for CO2. Data from this work will be combined with complementary geochemical data (i.e., major and trace elements) from an international team of scientists working on the samples. Broader impacts of the work include international collaboration with German and French scientists and the integration of research and education. The project involves method development which will foster inter-laboratory calibration of analyses and builds infrastructure for science.
众所周知,在地球的地幔的融化条件有地理上的差异,这与地幔的温度和成分的差异有关。然而,这些变化与沿洋中脊喷发的熔岩的组成有何关系尚不清楚。本研究的重点是分析一组独特的玄武岩样品的化学相似性和差异性,这些样品来自印度洋东南印度洋脊脊1200公里脊顶的130个地点。目标是确定海底熔岩的时空变化,其程度在海底这部分是前所未有的,并将其趋势与潜在的地幔过程联系起来。在2009年对该地区进行的一次国际考察中已经收集的样品将被分析为He, Pb, Hf和sr的同位素。40个样品也将被分析为He和He同位素以及二氧化碳。这项工作的数据将与一个研究样品的国际科学家小组提供的互补的地球化学数据(即主要元素和微量元素)相结合。这项工作的更广泛影响包括与德国和法国科学家的国际合作以及研究和教育的整合。该项目涉及方法开发,这将促进实验室间分析校准,并为科学建立基础设施。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Barry Hanan其他文献
Barry Hanan的其他文献
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{{ truncateString('Barry Hanan', 18)}}的其他基金
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- 批准号:
1551820 - 财政年份:2016
- 资助金额:
$ 18.86万 - 项目类别:
Standard Grant
Collaborative Research: An Isotopic and Trace Element Study of Links Between Source Heterogeneity and Mantle Melting Beneath the Southeast Indian Ridge
合作研究:东南印度洋中脊下方源异质性与地幔融化之间联系的同位素和微量元素研究
- 批准号:
1357036 - 财政年份:2014
- 资助金额:
$ 18.86万 - 项目类别:
Standard Grant
Collaborative Research: Hotspot Rift Interaction & Geochemistry of the North Atlantic Mantle: A U.S.-Norwegian Expedition to Sample the Aegir Ridge "Hole" in the Iceland Hots
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0852080 - 财政年份:2009
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$ 18.86万 - 项目类别:
Standard Grant
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- 批准号:
0738987 - 财政年份:2008
- 资助金额:
$ 18.86万 - 项目类别:
Continuing Grant
Collaborative Research: Chemical, Isotopic and Volatile Constraints on the Evolution of the Lau Basin
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0453138 - 财政年份:2005
- 资助金额:
$ 18.86万 - 项目类别:
Continuing Grant
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合作研究:加拉帕戈斯地幔柱扩散中心系统的化学地球动力学
- 批准号:
0241546 - 财政年份:2003
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$ 18.86万 - 项目类别:
Standard Grant
Collaborative Research: Spatial and Temporal Geochemical Evolution of the Iceland Mantle Plume and its Dispersion Along the Mid-Atlantic Range
合作研究:冰岛地幔柱的时空地球化学演化及其沿大西洋中部的扩散
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0095714 - 财政年份:2001
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$ 18.86万 - 项目类别:
Standard Grant
Collaorative Research: Magma Generation in the Early Mariana Arc System Revisited
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- 批准号:
0001824 - 财政年份:2001
- 资助金额:
$ 18.86万 - 项目类别:
Standard Grant
An Acquisition of a Multi-Collector-Inductively Coupled Plasma-Mass Spectrometer
购买多收集器电感耦合等离子体质谱仪
- 批准号:
0079943 - 财政年份:2000
- 资助金额:
$ 18.86万 - 项目类别:
Standard Grant
Collaborative Research: A Geochemical Investigation of the Tortugal Komatiites of Costa Rica
合作研究:哥斯达黎加托图加尔科马提岩的地球化学调查
- 批准号:
9725758 - 财政年份:1998
- 资助金额:
$ 18.86万 - 项目类别:
Standard Grant
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