Butterfly distribution plots illustrating the spatial variation of δ15N values across the Tarim Basin during the Terreneuvian, showing a persistent depth-dependent redox gradient from shallow inner ramp to deep basin settings. (IMAGE)

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Butterfly distribution plots illustrating the spatial variation of δ15N values across the Tarim Basin during the Terreneuvian, showing a persistent depth-dependent redox gradient from shallow inner ramp to deep basin settings.

Caption

Butterfly distribution plots illustrating the spatial variation of δ15N values across the Tarim Basin during the Terreneuvian, showing a persistent depth-dependent redox gradient from shallow inner ramp to deep basin settings.

Credit

Shiyan Liu/ Northwest University, Zhenfei Wang/ Nanjing University, Pengcheng Ju/ University of Science and Technology of China, Chao Chang/ Northwest University

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