Data for: Sources and petrogenesis of Late Triassic Zhiduo volcanics in the northeast Tibet: Implications for tectonic evolution of the western Jinsha Paleo-Tethys Ocean

In this paper, we present detailed petrology, zircon U–Pb geochronology, whole-rock major and trace element data, and Sr–Nd–Hf isotopes of the Triassic volcanic rocks in the Zhiduo area, northern margin of the North Qiangtang Block. Firstly, these data are used to constrain their formation age, petrogenesis, and tectonic setting. Combined with previous studies on the Ganzi-Litang suture, we then discuss a possible geodynamic model for the Triassic tectonic setting in the North Qiangtang Block and its implications for the Paleo-Tethys initial subduction, as well as the tectonic evolution of the western Jinsha Ocean.本文针对北羌塘地块北缘治多地区的三叠纪火山岩，系统报道了其详细岩石学特征、锆石U-Pb年代学数据、全岩主量与微量元素数据以及Sr-Nd-Hf同位素组成。上述数据被用于限定该套火山岩的形成时代、岩石成因与构造背景。结合前人针对甘孜-理塘缝合带的研究成果，本文进一步探讨了北羌塘地块三叠纪构造背景的潜在动力学模型，及其对古特提斯洋初始俯冲、金沙江洋西段构造演化的指示意义。