《Table 3 Rare earth element (REE) concentrations (ppb) of Wudaoliang stromatolites and reference sam

《Table 3 Rare earth element (REE) concentrations (ppb) of Wudaoliang stromatolites and reference sam   提示:宽带有限、当前游客访问压缩模式
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《"Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau"》


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Wudaoliang stromatolites showδ13C values ranging from2.43‰to 4.12‰,about 1.20‰higher than skeletal limestones(Yi et al.2008)and marlstones(Wu et al.2009)of the same formation.Highδ13C values might point to a significant photosynthetic effect in the water body.In photosynthetic process12C is preferentially assimilated by primary producers,resulting13CDICenrichment in lake water and highδ13C in the carbonates(Kerby and Raven1985;Hollander and Mc Kenzie 1991;Gu et al.1996).Therefore,despite high salinity,a significant primary carbon production is evident for this depositional period of the lake in the Hoh Xil Basin.