Quaternary Paleohydrology of the Western Great Basin Province, USA: The Radiogenic Isotope Record of Lacustrine Sediments of the Owens River System

美国西部大盆地省第四纪古水文学:欧文斯河系统湖泊沉积物的放射性同位素记录

基本信息

  • 批准号:
    9814943
  • 负责人:
  • 金额:
    $ 14.26万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1999
  • 资助国家:
    美国
  • 起止时间:
    1999-01-15 至 2001-12-31
  • 项目状态:
    已结题

项目摘要

9814943StewartThis award supports a radiogenic isotope study of a unique continental record of weathering and climate change preserved in a series of playa lakes in the southeastern California section of the Great Basin. This chain of periodically interconnected lakes, referred to as the Owens River System, is the repository for essentially all of the clastic and chemical sediments shed over the past several million years from the eastern Sierra Nevada from just south of Mono Lake to the Garlock Fault. Despite the large amount of work that has been carried out on the Owens Rivers System, there have been relatively few studies examining the sources of cations and clastic sediments in these Great Basin lacustrine basins. Strontium (Sr) and neodymium (Nd) isotopes are potentially sensitive tracers of cation inputs, both in the dissolved form and as suspended sediments. Preliminary data suggest that these isotope tracers can be successfully used in the Owens River System to monitor (1) changes in location of chemical weathering and sediment sources (therefore of precipitation patterns); (2) the relationship of chemical to mechanical weathering in the alpine environment; and (3) hydrologic connectivity between lakes that share a common water supply during wet periods but that become closed, isolated basins during dry periods. Integration of the results from the proposed study with previous and ongoing work in the Owens River System will provide powerful constraints on Quaternary climate shifts in the Basin and Range Province, which have in turn been linked to North Atlantic and global climate fluctuations.
9814943斯图尔特该奖项支持一个独特的大陆风化和气候变化的记录保存在一系列的干盐湖在大盆地的东南部加州部分的放射性同位素研究。 这条周期性相互连接的湖泊链,被称为欧文斯河水系,是过去几百万年来从莫诺湖以南到加洛克断层的内华达州东部山脉脱落的几乎所有碎屑和化学沉积物的储存库。 尽管大量的工作已经进行了欧文斯河流系统,有相对较少的研究,研究这些大盆地湖盆中的阳离子和碎屑沉积物的来源。 锶(Sr)和钕(Nd)同位素是阳离子输入的潜在敏感示踪剂,无论是溶解形式还是悬浮沉积物。 初步数据表明,这些同位素示踪剂可以成功地用于欧文斯河系统监测(1)化学风化和沉积物来源位置的变化(2)高山环境中化学风化与机械风化的关系;以及(3)在丰水期共享共同水源但在干旱期成为封闭孤立盆地的湖泊之间的水文连通性。 整合的结果,从拟议的研究与欧文斯河系统以前和正在进行的工作将提供强大的约束第四纪气候变化的流域和山脉省,这反过来又与北大西洋和全球气候波动。

项目成果

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Brian Stewart其他文献

Efficient Reconfigurable Mixed Precision $$\ell _1$$ Solver for Compressive Depth Reconstruction
InflateSail de-orbit flight demonstration results and follow-on drag-sail applications
InflateSail 离轨飞行演示结果和后续拖帆应用
  • DOI:
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    C. Underwood;A. Viquerat;M. Schenk;B. Taylor;Chiara Massimiani;Richard Duke;Brian Stewart;S. Fellowes;C. Bridges;G. Aglietti;B. Sanders;D. Masutti;A. Denis
  • 通讯作者:
    A. Denis
Tumour Src kinase family member expression correlates with peritumoral inflammatory cell infiltrate in a cohort of early breast cancer patients
  • DOI:
    10.1016/j.ijsu.2013.06.072
  • 发表时间:
    2013-10-01
  • 期刊:
  • 影响因子:
  • 作者:
    Brian Stewart;Jenny Ferguson;Zahra Mohammed;Donald McMillan;Paul Horgan;Joanne Edwards
  • 通讯作者:
    Joanne Edwards
The recognition of haemoglobin by antibodies raised for the immunoassay of β‐amyloid
β-淀粉样蛋白免疫测定抗体对血红蛋白的识别
  • DOI:
  • 发表时间:
    1997
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    P. Cutler;F. Brown;P. Camilleri;David Carpenter;A. George;Carol Gray;Margaret M. Haran;Brian Stewart
  • 通讯作者:
    Brian Stewart
Development and Testing of New Thin-Film Solar Cell ( TFSC ) Technology : Flight Results from the AlSat-1 N TFSC Payload
新型薄膜太阳能电池 ( TFSC ) 技术的开发和测试:AlSat-1 N TFSC 有效载荷的飞行结果
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    C. Underwood;D. Lamb;S. Irvine;A. Dyer;Richard Duke;Brian Stewart;B. Taylor;Chiara Massimiani;S. Fellowes;M. Baker
  • 通讯作者:
    M. Baker

Brian Stewart的其他文献

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{{ truncateString('Brian Stewart', 18)}}的其他基金

Doctoral Dissertation Improvement Award: The Ecological Context of Modern Human Adaptability
博士论文改进奖:现代人类适应性的生态背景
  • 批准号:
    2326691
  • 财政年份:
    2023
  • 资助金额:
    $ 14.26万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Diet Alteration in a High Altitude Environment
博士论文研究:高海拔环境下的饮食改变
  • 批准号:
    2104477
  • 财政年份:
    2021
  • 资助金额:
    $ 14.26万
  • 项目类别:
    Standard Grant
DC networks, power quality and plant reliability
直流网络、电能质量和电站可靠性
  • 批准号:
    EP/T001445/1
  • 财政年份:
    2020
  • 资助金额:
    $ 14.26万
  • 项目类别:
    Research Grant
Doctoral Dissertation Improvement Award: Behavioral and Environmental Adaptation in Alaska and the Yukon
博士论文改进奖:阿拉斯加和育空地区的行为和环境适应
  • 批准号:
    1830705
  • 财政年份:
    2018
  • 资助金额:
    $ 14.26万
  • 项目类别:
    Standard Grant
Human Adaptation to High Altitude Environments
人类对高海拔环境的适应
  • 批准号:
    1724435
  • 财政年份:
    2017
  • 资助金额:
    $ 14.26万
  • 项目类别:
    Standard Grant

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