Data source: Element composition data comes from the following literature: [1] Zhao Zilin, Zhou Xuewei, Li Kuizhou, Guo Tao, Peng Jingsong, Hou Mingcai. Source characteristics and geological significance of quartz sandstone in the Changlongshan Formation of the Neoproterozoic in the Liaodong Bay area [J/OL]. Journal of Sedimentology https://doi.org/10.14027/j.issn.1000-0550.2022.093 Testing instruments, methods, and processes: (1) Whole rock geochemistry The main and trace element analysis of the entire rock was completed by Wuhan Shangpu Analysis Technology Co., Ltd. The main elements of the entire rock were tested using a Japanese physics Primus II X-ray fluorescence spectrometer (XRF), and the sample was dried at 105 ℃ before weighing~1.0 g to calculate the loss on ignition; Glass sheets were made using anhydrous Li2B4O7 as the flux and NH4NO3 as the oxidant for XRF testing. The trace element testing of the entire rock was completed using an inductively coupled plasma mass spectrometer Agilent 7700e ICP-MS analysis. A weighed 50 mg sample powder was placed in a Teflon dissolution bomb, followed by the addition of HF and HNO3. The sample was then heated in an oven at~190 ℃ for more than 24 hours to achieve complete dissolution; Use 1 mL of internal standard In (concentration 1 × 10-6) Re processing; Finally, transfer the solution into a polyethylene bottle and dilute it to 100 g with 2% HNO3 before conducting ICP-MS testing. (2) Zircon U-Pb age The selection, target making, and CL photography of zircons were completed at Nanjing Hongchuang Geological Exploration Technology Service Co., Ltd. Firstly, stick double-sided adhesive tape onto the glass slide, gently shake off the sorted zircon particles to a low magnification microscope, and use a very fine hook to neatly and orderly stick the particles onto the double-sided adhesive tape (sedimentary rocks generally stick 150-200 particles, igneous rocks stick 50-100 particles), with a diameter of 1cm × A 1cm circular hollow tube is pasted onto a glass slide and the particles are kept at the center. The prepared epoxy resin is poured and placed in a constant temperature oven for two days. After solidification, the zircon target is roughly ground, finely ground, and polished. Subsequently, a cathodoluminescence (CL) micrograph was taken after carbon spraying on the surface, and images of reflected and transmitted light were collected under a regular microscope. After collecting the images, use drawing software to concatenate them, and compare the three types of images together to select a better measurement point position. U-Pb dating was completed in the State Key Laboratory of Oil and Gas Reservoir Geology and Development Engineering (Chengdu University of Technology), and the experimental equipment was the Resolution LR 193nm laser ablation system of American Applied Spectrum Company and Agilent 7900 mass spectrometer. In this analysis, the laser energy density was 3.5 J/cm2, the beam spot diameter was 29 µ m, the frequency was 8 Hz, and the erosion lasted for 45 seconds; Using standard zircon 91500 as the external standard to correct instrument quality discrimination and elemental fractionation; Using standard zircon PLE as a blind standard to test data quality; Use NIST SRM610 as the external standard and Si as the internal standard to calibrate the trace element content of zircon. The offline processing of analytical data is completed using software ICPMSDataCal. Utilizing Isoplot/Ex_ Plot the U-Pb age harmony map and calculate the age weighted average of zircon samples using ver3