Geochemical and isotope analyses of basalt samples from Central Indian Ridge at 14°30’S

This dataset includes the major and trace element compositions and Sr, Nd and Pb isotopic compositions of the bulk-rock basalt samples (42 samples). Basalt samples were collected from the Central Indian Ridge at 14°30’S (segment 18). Measurements were performed via an X-ray fluorescence spectrometer (Primus II, Rigaku, Tokyo, Japan; for major elements), an inductively coupled plasma mass spectrometer (iCAP-Q, Thermo Fisher Scientific, Bremen, Germany; for trace elements), a thermal-ionization mass spectrometer (TRITON plus, Thermo Fisher Scientific; for Sr and Nd isotopes), and a multicollector inductively coupled plasma mass spectrometer (NEPTUNE plus, Thermo Fisher Scientific; for Pb isotopes).

本数据集涵盖42件全岩玄武岩样品的主量元素、微量元素组成，以及锶（Sr）、钕（Nd）和铅（Pb）同位素组成。玄武岩样品采自南纬14°30′的中印度洋海岭（第18段）。测试分析工作依托以下设备开展：主量元素测试使用X射线荧光光谱仪（X-ray fluorescence spectrometer，型号Primus II，理学（Rigaku），日本东京）；微量元素测试使用电感耦合等离子体质谱仪（inductively coupled plasma mass spectrometer，型号iCAP-Q，赛默飞世尔科技（Thermo Fisher Scientific），德国不来梅）；Sr、Nd同位素测试使用热电离质谱仪（thermal-ionization mass spectrometer，型号TRITON plus，赛默飞世尔科技（Thermo Fisher Scientific））；Pb同位素测试使用多接收电感耦合等离子体质谱仪（multicollector inductively coupled plasma mass spectrometer，型号NEPTUNE plus，赛默飞世尔科技（Thermo Fisher Scientific））。