Enrichment Modes of Mesozoic Volcanic Rocks in the Bohai Sea: A Spatial Relationship Perspective

Based on the spatial relationship between hydrocarbon source rocks and volcanic rocks, the enrichment modes of Mesozoic volcanic rocks in the Bohai Sea can be classified into three types: 'source-reservoir overburden docking type' of low-positioned sub-sag in the source area, 'source-reservoir lateral window docking type' of mid-positioned sub-sag at the source edge, and 'source-reservoir close-range transport type' of high-positioned sub-sag outside the source area.