The BC concentrations, δ13C values, and sequences of paleoclimatic proxies for the Beigou section of the Nanyang Basin during the PETM. (IMAGE)

Science China Press

The BC concentrations, δ13C values, and sequences of paleoclimatic proxies for the Beigou section of the Nanyang Basin during the PETM.

Caption

(a) δ13CTOC record. (b) δ13CBC record. (c) BC/TOC ratio. (d) Carbonate content. (e) Dolomite/carbonate ratio. (f) Molar Sr/Ca ratios of authigenic carbonates. (g) Molar Mg/Ca ratios of authigenic carbonates. (h) Kaolinite/smectite ratio. (i) Temperature estimates from branched glycerol dialkyl glycerol tetraethers. The gray shadow represents the PETM event.

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