藏南中新生代哲古措中-基性岩与林子宗火山岩Sr-Nd同位素数据集（2022）

该数据集主要包括藏南措美大火成岩省山南市哲古镇中-基性岩和拉萨地体东段林子宗火山岩。该数据主要用来研究大火成岩省拉班质中性岩的成因，对探讨为什么大火成岩省缺少中性岩具有重要意义；研究碰撞带火山岩的岩石成因和岩浆中富集组分时空变化的起源，对利用岩石学证据约束印度—欧亚碰撞时限具有重要意义。Sr-Nd同位素数据共计测试78件，不包括重复样品检测。采用TIMS和MC-ICPMS方法测试，测试单位为加拿大Carleton University同位素实验室和测试单位为青岛中科院海洋所。数据来源于已经发表文章，数据真实可靠。可以应用于岩浆岩石成因研究。

This dataset primarily comprises intermediate-mafic rocks from Zhegu Town, Shannan City, within the Cuome Large Igneous Province (LIP) of southern Tibet, as well as Linzizong Volcanic Rocks from the eastern Lhasa Terrane. This dataset is mainly used to investigate the petrogenesis of tholeiitic intermediate rocks in Large Igneous Provinces, which is of great importance for exploring the scarcity of intermediate rocks in such provinces; it also supports research on the petrogenesis of collisional zone volcanic rocks and the origin of temporal-spatial variations in enriched components in magmas, holding significant implications for constraining the timing of the India-Eurasia collision using petrological evidence. A total of 78 Sr-Nd isotope analyses were conducted, excluding duplicate sample measurements. These analyses were performed using TIMS and MC-ICPMS at the Isotope Laboratory of Carleton University, Canada, and the Institute of Oceanology, Chinese Academy of Sciences, Qingdao. The dataset is sourced from peer-reviewed published literature, and the data are authentic and reliable. It can be applied to studies of magmatic petrogenesis.

搜集汇总

背景与挑战

背景概述

该数据集包含藏南措美大火成岩省山南市哲古镇中-基性岩和拉萨地体东段林子宗火山岩的78件Sr-Nd同位素数据，用于研究大火成岩省中性岩成因及碰撞带火山岩岩石成因，数据来源于已发表文章，测试方法可靠。