Extended Data Fig. 4: Microscopic characteristics of the rhyolite porphyry and crystal tuff from the Sinongduo epithermal Ag-Pb-Zn deposit.
From: High-elevation Tibetan Plateau before India–Eurasia collision recorded by triple oxygen isotopes
a,d,e, Rhyolite porphyry. b,c,f, Crystal tuff. Q, quartz; Q vein, quartz vein; Py, pyrite; Chal, chalcedony; Chal vein, chalcedony vein; Ser, sericite; Pl, plagioclase.
