Tables S1-5-Supporting information for-- Reconsideration of the First Involvement of Indian Plate into Gangdese Magmatism

This file contains sample description, geochronology, geochemistry and Lu-Hf isotopes of Cenozoic granitoids from Nyingchi area of Gangdese belt, Southern Tibet. These data, combined with published geochemistry and Sr-Nd isotopes of adakites nearby our study area, shows that the first involvement of Indian continental materials with Gangdese magmatism was at ~ 27 Ma. The Sr-Nd-Hf isotopes are direct evidence of our hypothesis when plot in diagrams including MgO versus εNd(t), Age(Ma) versus εHf(t). Other geochemical data can be plot in many traditional discrimination diagrams including the Harker series, Adakite discrimination diagrams, etc.

本数据集包含藏南冈底斯带（Gangdese belt）林芝地区（Nyingchi area）新生代花岗岩类的样品描述、地质年代学数据、地球化学数据以及Lu-Hf同位素数据。本数据集结合研究区附近已发表的埃达克岩（adakites）地球化学与Sr-Nd同位素数据，证实印度大陆物质首次混入冈底斯岩浆作用的时间约为27 Ma。将Sr-Nd-Hf同位素数据投绘至MgO与εNd(t)、年龄（Ma）与εHf(t)等图解时，即可为本文提出的假说提供直接佐证。其余地球化学数据则可投绘至多种传统判别图解中，例如哈克（Harker）图解、埃达克岩判别图解等。