Development of precise isotopic analysis for founding heavy stable isotope? marine chemistry

开发精确同位素分析来寻找重稳定同位素？

• 批准号: 21350042
• 负责人: SOHRIN Yoshiki
• 金额: $ 12.31万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21350042/
• 关键词: 環境分析; 分析化学; 海洋科学; 地球化学; 重元素安定同位体; 海洋生態; HR-ICP-MS; モリブデン; 銅; タングステン; MC-ICP-MS

Isotopic ratios of heavy elements are widely noticed as novel measures in marine chemistry. In the present study, we have analyzed seawater samples collected from the Pacific, Southern and Atlantic Oceans, confirming that the isotopic composition of dissolved molybdenum is uniform throughout the global ocean. We developed a precise method for isotopic analysis of dissolved copper in seawater. We also optimized an isotopic analysis method for molybdenum and tungsten in sediments. The isotopic ratios of these elements are promising as a tracer of biogeochemical cycling and a proxy in paleoceanography.

重元素的同位素比作为海洋化学中的新颖测量方法而受到广泛关注。在本研究中，我们分析了从太平洋、南海和大西洋收集的海水样本，证实了整个全球海洋中溶解钼的同位素组成是均匀的。我们开发了一种对海水中溶解铜进行同位素分析的精确方法。我们还优化了沉积物中钼和钨的同位素分析方法。这些元素的同位素比有望作为生物地球化学循环的示踪剂和古海洋学的替代物。

项目成果

U-Pb zircon geochronology of granites and charnockite from southern India : implications for nagiatic pulses associated with plate tectonic cycles within a Precambrian suture zone

印度南部花岗岩和角辉岩的 U-Pb 锆石年代学：对前寒武纪缝合带内板块构造循环相关的长河脉冲的影响

• DOI: 10.1002/gj.1300
• 发表时间: 2012
• 影响因子: 1.8
• 作者: K.Sato; M.Santosh; T.R.K.Chetty; T.Hirata
• 通讯作者: T.Hirata

Detrital zircons from the Tananao metamorphic complex of Taiwan : Implications for sediment provenance and Mesozoic tectonics

台湾塔那尾变质杂岩中的碎屑锆石：对沉积物来源和中生代构造的意义

• 发表时间: 2012
• 影响因子: 2.9
• 作者: Yui; T.F.; Maki; K.; Lan; C.Y.; Hirata; T.; Chu; H.T.; Kon; Y.; Yokoyama; T.D.; Jahn; B.M.; Ernst; W.G.
• 通讯作者: W.G.

Laser ablation ICP mass spectrometry for zircon U-Pb geochronology of metamorphosed granite from the Salem Block : Implication for Neoarchean crustal evolution in southern India

激光烧蚀 ICP 质谱法对塞勒姆地块变质花岗岩的锆石 U-Pb 年代学：对印度南部新太古代地壳演化的启示

• 发表时间: 2011
• 影响因子: 0.7
• 作者: Kei Sato; M.Santosh; Toshiaki Tsunogae; T.R.K.Chetty; Takafumi Hirata
• 通讯作者: Takafumi Hirata

Imbricated ocean-plate stratigraphy and U-Pb zircon ages from tuff beds in cherts in the Ballantrae complex, SW Scotland

苏格兰西南部巴兰特雷杂岩中燧石中凝灰岩层的叠瓦洋板块地层学和 U-Pb 锆石年龄

• 发表时间: 2010
• 影响因子: 4.9
• 作者: Y.Sawaki; T.Shibuya; T.Kawai; T.Komiya; S.Omori; T.Iizuka; T.Hirata; B.F.Windley; S.Maruyama
• 通讯作者: S.Maruyama

Behaviors of dissolved and particulate Co, Ni, Cu, Zn, Cd and Pb during a mesoscale Fe enrichment experiment (SEEDS II) in the western North Pacific

北太平洋西部中尺度铁富集实验 (SEEDS II) 期间溶解和颗粒状 Co、Ni、Cu、Zn、Cd 和 Pb 的行为

• 发表时间: 2009
• 作者: S.Nakatsuka; K.Okamura; S.Takeda; J.Nishioka; M.L.Firdaus; K.Norisuye; Y.Sohrin
• 通讯作者: Y.Sohrin