Sr and Nd isotopic compositions of apatite reference materials used in U-Th-Pb geochronology
Sr and Nd isotopic compositions of apatite reference materials used in U-Th-Pb geochronology
复制标题
U-Th-Pb 地质年代学中使用的磷灰石参考材料的 Sr 和 Nd 同位素组成
DOI:
10.1016/j.chemgeo.2014.07.012
复制
发表时间:
2014-10
期刊:
影响因子:
3.9
通讯作者:
Huang C
中科院分区:
文献类型:
--
作者:
Xie LW;Chu ZY;Zhang YB;Huang C
Apatite is an important common U- and Th-bearing accessory mineral in igneous, metamorphic and clastic sedimentary rocks. The advent ofin situU–Th–Pb apatite geochronology by the SIMS and LA-(MC)-ICP-MS methods has demonstrated the importance of having uniform and homogeneous reference materials. Recently, it has been shown that Sr and Nd isotopic data combined with U–Pb age and trace element concentration data can provide important constraints on apatite paragenesis because this phase usually exhibits high Sr and REE concentrations but has low Rb/Sr ratios which result in negligible corrections for the ingrowth of radiogenic Sr. However, as apatite can potentially have complex internal structures resulting from multiple thermal events, such as inherited cores and metamorphic overgrowths, requires that the Sr and Nd isotopic data should be measured with high spatial resolution. However isobaric interferences hamper the precise determination of Sr or Nd isotopic compositions in LA-MC-ICP-MS analysis. In this work we undertookin situmeasurements of Sr and Nd isotopic compositions of eleven apatite reference materials (AP1, AP2, Durango, MAD, Otter Lake, NW-1, Slyudyanka, UWA-1, Mud Tank, McClure Mountain and SDG) commonly used in U–Th–Pb geochronology. Our obtained Sr and Sm–Nd isotopic compositions for these apatite samples are consistent with those values obtained by solution-based methods (isotope dilution and ion chromatography) using MC-ICP-MS or TIMS, which demonstrates the reliability and robustness of our analytical protocol.
登录
查看更多内容
DOI:
10.1016/j.sab.2014.05.006
发表时间:
2014-07
期刊:
Spectrochimica Acta Part B: Atomic Spectroscopy
影响因子:
--
作者:
Fu-Yuan Wu;Lie-Wen Xie;Zhu-Yin Chu;Jin-Hui Yang
通讯作者:
Jin-Hui Yang
影响因子:
3.9
作者:
Yue-heng Yang;Fu-Yuan Wu;S. Wilde;Xiaoming Liu;Y. Zhang;Liewen Xie;Jin-Hui Yang
通讯作者:
Yue-heng Yang;Fu-Yuan Wu;S. Wilde;Xiaoming Liu;Y. Zhang;Liewen Xie;Jin-Hui Yang
影响因子:
3.9
作者:
F. Poitrasson;J. Hanchar;U. Schaltegger
通讯作者:
F. Poitrasson;J. Hanchar;U. Schaltegger
影响因子:
1.2
作者:
E. Belousova;S. Walters;W. Griffin;S. O’Reilly
通讯作者:
E. Belousova;S. Walters;W. Griffin;S. O’Reilly
影响因子:
3.9
作者:
Fu-Yuan Wu;R. Mitchell;Qiu-Li Li-Qiu-Li-Li-2146080673;Jing Sun;Chuan-Zhou Liu;Yue-heng Yang
通讯作者:
Fu-Yuan Wu;R. Mitchell;Qiu-Li Li-Qiu-Li-Li-2146080673;Jing Sun;Chuan-Zhou Liu;Yue-heng Yang