Abstract:Low metamorphic argillaceous rocks and carbonate rocks are widely distributed in the Meso- Neoproterozoic stratigraphic framework of the three continental blocks in China. Its geochemistry characteristics of elements provide important basic data for us to study the history evolution of the lithosphere. In this paper, we collected nearly 2000 sets of geochemistry data in argillaceous rocks/carbonate rocks that have been published in China and abroad in the past decade, including 40 major and trace element content compositions, involving the Changcheng System, Jixian System, Undefined System and Qingbaikou System of the North China block, the Nanhua System and the Sinian System of the Yangtze and Tarim blocks. In combination with the lithology, experimental methods and geological background characteristics of the samples in the literature, we mainly draw the following conclusions: ① The average content of major elements in argillaceous rocks is similar to that in unmetamorphosed pelite in eastern China. But it was influenced overall by the Neoproterozoic ice age and has a relatively high content of Na, K and Ca elements that are easily lost by chemical weathering. The content composition of major elements in carbonate rocks can be compared with that of unmetamorphosed mud- rich carbonate rocks in eastern China. There is a small amount of terrigenous detrital input, mainly dolomite, and the Mg content is high. ② The high Mn/Sr ratio in carbonate rocks should be related to diagenetic alteration. Although silicate minerals in carbonate rocks are less than those in argillaceous rocks, Sc, REE+Y and redox sensitive elements are more enriched. Sc and REE+Y elements are related to the hybridization of terrigenous clasts, and the latter is related to the oxidized marine environment. ③ In the early Mesoproterozoic, the negative anomaly of Ce element and the increase of redox sensitive element content were recorded in the sediments of North China, which responded to a shallow sea oxidation event and promoted the biological evolution. ④ In the Neoproterozoic, the Tarim argillaceous rocks had a wide range of chemical alteration indexes, which recorded the “Snowball Earth” event. With the increase of ocean oxygen during interglacial and post glacial periods, the content of some trace elements in Neoproterozoic sediments of the Yangtze block increased again, which corresponded to the emergence of Ediacara biota.