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. Author manuscript; available in PMC: 2020 Jun 17.
Published in final edited form as: Geol Mag. 2019 Jun 17;N/A:10.1017/S0016756819000293. doi: 10.1017/S0016756819000293

Figure 6.

Figure 6.

Typical lithofacies and geochemical data of the Gaojiashan Member, Dengying Formation, at the Gaojiashan section. Stratigraphic height numbers representing the distance above the Algal Dolomite/Gaojiashan boundary. (A) Thinly bedded siltstones and silty limestones at the lower/middle transition of the Gaojiashan Member. (B) Dark-colored thin-bedded limestones in the middle Gaojiashan Member that records a δ13Ccarb positive excursion up to +6‰ (Cui et al., 2016b). (C) A conglomerate/sandstone interval in the upper Gaojiashan Member. (D-I) Photos of freshly cut slabs of samples from the Gaojiashan Member with microbial laminae and intraclasts. These slabs represent greenish grey dolostone (D), limestones with microbial laminae (E-H), and intraclastic limestone (I). The numbers in the sample IDs represent distance (in meters) below the conglomerate interval in the upper Gaojiashan Member. For example: sample 14GJS-10 is 10 m below the conglomerate interval in the Gaojiashan Member. The δ13Ccarb and δ18Ocarb values of micro-drilled carbonate powders are marked on the slab. The δ34Spyrite and δ13Corg values of each slab were analyzed from bulk acidified residues.