西天山乌孙山花岗岩数据集(2014-2017)

本数据集包含锆石LA-ICPMS U-Pb年龄和全岩主微量成分数据，年代学数据表明花岗岩的形成年龄为362.0 ± 1.2–360.3 ± 1.9 Ma，同位素成分显示黑云母花岗岩和钾长花岗岩来自于同一岩浆房，锆石饱和温度显示钾长花岗岩是岩浆高分异的产物，可能形成于弧后伸展背景之下。

This dataset contains zircon LA-ICPMS U-Pb age data and whole-rock major and trace element composition data. Geochronological data indicate that the formation age of the granites ranges from 362.0 ± 1.2 Ma to 360.3 ± 1.9 Ma. Isotopic compositions reveal that biotite granite and K-feldspar granite were derived from the same magma chamber. Zircon saturation temperatures demonstrate that the K-feldspar granite is a product of highly fractionated magma, which likely formed in a back-arc extensional setting.

搜集汇总

背景与挑战

背景概述

该数据集提供了西天山乌孙山花岗岩的锆石U-Pb年龄和全岩地球化学数据，揭示了花岗岩的形成年龄为362.0 ± 1.2–360.3 ± 1.9 Ma，并指出其可能形成于弧后伸展背景。数据来源于973项目，由中国科学院新疆生态与地理研究所加工和提供。