Features of Multistage Cretaceous Conglomerate Deposition and its Palaeo-Geographic Significance in oft-com:office:smarttags" />JixiBasin of Eastern Heilongjiang, NE China
The results of gravel counting in different periods of cretaceous in oft-com:office:smarttags" />JixiBasin shows that Lower Cretaceous gravel mainly consist of quartzite and granite. Based on the analysis of gravels, the deposition from Chengzihe Formation to Muleng Formation is the course of water expending. In the middle and late sedimentary stage of the Muleng Formation, the western becomes the mainly continental provenance followed by the further expansion of the transgressive range. During Late Cretaceous, the basin and its periphery occurs uplift and subjects to erosion because intensely fold-thrusting, deposit Houshigou Formation in the low-lying region.