Single laboratory comparison of MC-ICP-MS and N-TIMS boron isotope analyses in marine carbonates
作者: Jesse R. FarmerBärbel HönischJoji Uchikawa
作者单位: 1Department of Earth and Environmental Sciences, Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, USA
2Department of Oceanography, SOEST, University of Hawaii at Manoa, Honolulu, HI, USA
刊名: Chemical Geology, 2016, Vol.447 , pp.173-182
来源数据库: Elsevier Journal
DOI: 10.1016/j.chemgeo.2016.11.008
关键词: Boron isotopesPaleo-pHNegative thermal ionization mass spectrometry (N-TIMS)Multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS)Method intercomparison
原始语种摘要: Abstract(#br)Measurements of boron isotopes ( δ 11 B) in marine carbonates are an important tool for reconstructing past ocean acidity and atmospheric carbon dioxide levels, but are challenging to obtain due to low boron concentrations and the presence of only two stable boron isotopes. Previous studies have observed differences in absolute δ 11 B values of marine carbonates measured via negative thermal ionization mass spectrometry (N-TIMS) and multicollector inductively coupled mass spectrometry (MC-ICP-MS) that are relatively large compared to magnitudes of δ 11 B variability in paleoceanographic studies. Here we investigate the cause of these δ 11 B offsets and implications for paleo-pH reconstructions by performing N-TIMS and MC-ICP-MS measurements within the same laboratory on a...
全文获取路径: Elsevier  (合作)
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影响因子:3.154 (2012)

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关键词翻译
关键词翻译
  • 比较 深绿玉髓
  • isotope 同位素
  • marine 海洋的
  • spectrometry 光谱测定
  • laboratory 实验室
  • coupled 耦合
  • thermal 热的
  • ionization 电离化
  • boron 
  • plasma 深绿玉髓
  • comparison 深绿玉髓