Collaborative Research: Storage Duration of Giant Plagioclase Basalts, Deccan Traps, India
合作研究:印度德干圈闭巨型斜长石玄武岩的储存持续时间
基本信息
- 批准号:0538012
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-01-01 至 2008-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Intellectual Merit. The bulk of the voluminous Deccan (India) flood basalts erupted at the K/T boundary, a major stratigraphic boundary associated with a major faunal extinction (e.g., the dinosaurs). Hence, there is a great deal of interest in understanding how long the Deccan eruption lasted and what impact it had on biotic evolution. Conventional dating techniques (40Ar/39Ar, K/Ar methods) have an uncertainty of +/- 0.5 m.y., and thus we do not know whether the whole eruption lasted a few years, 100 kyr, or 500 kyr! Preliminary calculations based on crystal growth rate data suggest that the most voluminous lava package from the Western Ghats region could have been erupted in as little as 50 kyr, corresponding to a phenomenal eruption rate. The present project is a pilot study aimed at evaluating a technique (time-dependent relaxation of diffusion profiles of elements across compositional zones in giant plagioclase phenocrysts) that may eventually provide an independent method for quantifying the duration of activities of individual Deccan magma chambers. Compositional profiles across large complexly zoned plagioclase crystals will also be utilized to evaluate their potential as 'micro-stratigraphic' correlations between crystals carried in successive lava flows to investigate magma chamber models - that is, do successive lavas erupt from long-lived dynamic reservoirs that underwent multiple episodes of magma emplacement, recharge, recharge, and extrusion. This work will entail detailed petrographic and crystal-size distribution studies coupled with high precision trace element (Mg, Fe, Sr) and 87Sr/86Sr profiles across compositional zones in individual phenocrysts using microdrill and Laser-ablation ICP-MS at work at Washington State University and electron microprobe analysis at Florida International University (FIU).Broader impacts. An appealing aspect of the proposed study is its potential to deliver time-resolution that is not attainable with current isotopic and paleomagnetic methods. FIU is a minority institution. The project will involve the education and training of a doctoral student (Melroy Borges) and likely will involve one part-time undergraduate (Kevin Chau). The proposed work will promote collaborations between investigators at several institutions in the US and India.
智力优点。大部分大型Deccan(印度)洪水盆地在K/T边界爆发,K/T边界是与主要动物灭绝相关的主要地层边界(例如,恐龙)。因此,了解Deccan爆发持续了多长时间以及它对生物进化的影响有很大的兴趣。常规的约会技术(40AR/39AR,K/AR方法)的不确定性为+/- 0.5 M.Y.,因此我们不知道整个喷发是否持续了几年,100 kyr还是500 kyr!基于晶体生长速率数据的初步计算表明,西高止山脉区域中最大的熔岩包装本来可以爆发到50 kyr中,这对应于惊人的喷发率。本项目是一项试点研究,旨在评估一项技术(巨型斜长石溶质晶体中元素的扩散谱的时间依赖性松弛)最终可能提供一种独立的方法来量化单个Deccan Magma Chambers的活动持续时间。在大型复杂的斜长石晶体上的组成谱也将被用来评估它们的潜力,作为在连续的熔岩流中携带的晶体之间的“微地层学”相关性,以研究岩浆室模型,即,长期寿命的动力学爆发了连续的熔岩爆发。这项工作将需要详细的岩石学和晶体尺寸的分配研究,结合高精度的痕量元素(MG,FE,SR)和87SR/86SR的构图区域的87SR/86SR概况,使用微型晶状体和激光型ICP-MS在华盛顿州立大学和电子大学的工作中使用Micrododrill和Laser-Ablation ICP-MS。拟议的研究的一个吸引人的方面是,它的潜力是提供当前同位素和古磁方法无法实现的时间分辨率。 FIU是少数族裔机构。该项目将涉及博士生(Melroy Borges)的教育和培训,并可能涉及一个兼职本科生(Kevin Chau)。拟议的工作将促进美国和印度几个机构的调查人员之间的合作。
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)

暂无数据
数据更新时间:2024-06-01
Gautam Sen其他文献
Microwave assisted synthesis of guar gum based biopolymeric macromolecule optimized as a flocculant for mineral ore processing
- DOI:10.1016/j.ijbiomac.2022.08.04210.1016/j.ijbiomac.2022.08.042
- 发表时间:2022-11-012022-11-01
- 期刊:
- 影响因子:
- 作者:Smita Singh;J.P. Pandey;Gautam SenSmita Singh;J.P. Pandey;Gautam Sen
- 通讯作者:Gautam SenGautam Sen
Processing Techniques or Mycotoxins—A Balancing Act of Food Safety and Preservation
加工技术或霉菌毒素——食品安全与保鲜的平衡之举
- DOI:
- 发表时间:20192019
- 期刊:
- 影响因子:0
- 作者:Pinki Pal;J. Pandey;Gautam SenPinki Pal;J. Pandey;Gautam Sen
- 通讯作者:Gautam SenGautam Sen
Microwave‐Irradiated Synthesis of Agar‐Based Graft Copolymers
微波辐射合成琼脂基接枝共聚物
- DOI:10.1002/9781119044901.ch310.1002/9781119044901.ch3
- 发表时间:20152015
- 期刊:
- 影响因子:0
- 作者:S. Mishra;Gautam Sen;G. U. RaniS. Mishra;Gautam Sen;G. U. Rani
- 通讯作者:G. U. RaniG. U. Rani
Cardiac manifestations of rheumatological disease: a synopsis for the cardiologist
风湿病的心脏表现:心脏病专家概要
- DOI:
- 发表时间:20202020
- 期刊:
- 影响因子:5.7
- 作者:Gautam Sen;P. Gordon;D. SadoGautam Sen;P. Gordon;D. Sado
- 通讯作者:D. SadoD. Sado
Variaciones espaciales y temporales del registro del límite K/T en Haiti: implicaciones acerca del evento o eventos
海地的 Variaciones espaciales y tempales del registro del límite K/T en Haiti: implicaciones acerca del evento o eventos
- DOI:10.5209/jige.3396310.5209/jige.33963
- 发表时间:20042004
- 期刊:
- 影响因子:1.3
- 作者:R. Aguado;M. A. Lamolda;F. Maurrasse;Danuta Peryt;Gautam SenR. Aguado;M. A. Lamolda;F. Maurrasse;Danuta Peryt;Gautam Sen
- 通讯作者:Gautam SenGautam Sen
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Gautam Sen的其他基金
U.S.-India Cooperative Research: Earliest Phase of Deccan Trap Activity--An Investigation Into the Igneous Rocks and Mantle Xenoliths From Kutch
美印合作研究:德干圈闭活动的早期阶段——卡奇火成岩和地幔捕虏体的调查
- 批准号:03529480352948
- 财政年份:2004
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
Collaborative Research:Insights into plume-lithosphere interaction from Hawaiian mantle xenoliths
合作研究:从夏威夷地幔捕虏体中洞察地幔柱-岩石圈相互作用
- 批准号:02416810241681
- 财政年份:2003
- 资助金额:----
- 项目类别:Continuing grantContinuing grant
Upgrade of Superconducting Rock Magnetometer
超导岩石磁力计升级改造
- 批准号:00040640004064
- 财政年份:2001
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
Acquisition of an Electron Probe Microanalyzer, A Regional Facility
购置电子探针显微分析仪(区域设施)
- 批准号:99776429977642
- 财政年份:1999
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
Layering of the Oceanic Lithosphere: Petrologic Study of Hawaiian Xenoliths and Abyssal Peridotites - A Renewal
大洋岩石圈的分层:夏威夷捕虏体和深渊橄榄岩的岩石学研究 - 更新
- 批准号:98109619810961
- 财政年份:1998
- 资助金额:----
- 项目类别:Continuing grantContinuing grant
Upgrading the Electron Microprobe at Florida International University
升级佛罗里达国际大学的电子微探针
- 批准号:96176739617673
- 财政年份:1997
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
US-Indo Workshop on Deccan Traps Volcanism and its Impact onClimate, Mahabaleshwar, January 25-30, 1996.
美国-印度关于德干火山活动及其对气候影响的研讨会,马哈巴莱什瓦尔,1996 年 1 月 25 日至 30 日。
- 批准号:95128079512807
- 财政年份:1996
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
Layering of the Oceanic Lithosphere: Petrologic Study of Hawaiian Xenoliths and Abyssal Peridotites
大洋岩石圈的分层:夏威夷捕虏体和深渊橄榄岩的岩石学研究
- 批准号:95204099520409
- 财政年份:1995
- 资助金额:----
- 项目类别:Continuing grantContinuing grant
RUI: Upgrading of the Electron Microprobe at Florida International University
RUI:佛罗里达国际大学电子微探针的升级
- 批准号:88158588815858
- 财政年份:1989
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
Experimental Determination of Phase Relationships in the System Ca0-Mg0-Al203-Si02 at 5-10 kb and 900 - 1200 C UsingPb0 Flux
使用 Pb0 助熔剂在 5-10 kb 和 900 - 1200 C 下实验测定 Ca0-Mg0-Al2O3-SiO2 系统中的相关系
- 批准号:86071308607130
- 财政年份:1986
- 资助金额:----
- 项目类别:Standard GrantStandard Grant
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长时定载贮存下老化复合固体推进剂的蠕变损伤行为及本构关系研究
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硫酸改性膨胀蛭石覆盖对养殖污水贮存氨高效减排的机制研究
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