Extended Data Fig. 3: Stable isotopes of Tibetan water samples present in this study.
From: High-elevation Tibetan Plateau before India–Eurasia collision recorded by triple oxygen isotopes
a. Meteoric water relationships showing the Tibetan meteoric water line (MWL, dashed blue line) for δ18O versus δD values relative to the global meteoric water line (GMWL, black line), δ18O versus d-excess values, and the triple oxygen Tibetan MWL (dashed blue line) compared to the GMWL (black line) in δ′18O versus δ′17O space. The GMWL is from Aron et al.27 and is indistinguishable from the Tibetan MWL, though in δ18O versus Δ′17O space the differences in slope and intercept are noticeable (see Extended Data Fig. 6). Horizontal lines in the second panel is for an intercept of 10 for the GMWL. b. δ18O values versus elevation, latitude, and longitude. Note that the data in the first panel is equivalent to Fig. 2b but including all precipitation as well as stream, river and snowpack data. c. Δ′17O values versus elevation, latitude and longitude. On all panels data from Kukla et al.50 are the small circles, and data from this study and Tian et al.25,70 are the large blue diamonds.
