Whole-rock major, trace elements and Sr isotopes, zircon U-Pb isotopes, and clinopyroxene major, trace elements and Sr isotopes of potassic-ultrapotassic mafic rocks in the southeastern Tibetan Plateau

We report whole-rock major, trace elements and Sr isotopes, zircon U-Pb isotopes, and clinopyroxene major, trace elements and Sr isotopes for six suites of Cenozoic potassic–ultrapotassic mafic lavas and lamprophyres from the southeastern Tibetan Plateau. These data were used to investigate the crustal contamination (including the type of contaminated material and the extent of contamination) of potassic–ultrapotassic magmas in a continental collision zone and reveal its effect on the magma composition.

本研究报道了采自青藏高原东南部的6套新生代钾质-超钾质基性熔岩与煌斑岩的全岩主量、微量元素及锶同位素数据，以及锆石U-Pb同位素、单斜辉石主量、微量元素与锶同位素数据。本数据集被用于探究大陆碰撞带内钾质-超钾质岩浆的地壳混染作用（包括混染物质类型与混染程度），并揭示该混染作用对岩浆成分的影响。