Abstract: The configuration of organic matter in marine carbonates has been studied with scanning electron microscope.The globules confirmed as carbon by electron probe are named globular organic matter,a marker of source rock.This study has shown that the kerogen in marine carbonates of sapropelis and mixed type has high hydrocarbon generation potential.Based on the souse and type of organic matter and exploration practice,marine carbonates should be taken as one of important souxce rocks.

摘要： 应用扫描电子显微镜,对海相碳酸盐岩中的有机质形态进行研究.(1)所发现的球状微粒经电子探针证实是“碳”,定名为球状微粒有机质,为生油岩的标志之一.(2)对海相碳酸盐岩中干酪很的研究表明,其类型较好,多属腐泥及混合型,具有较高的生油潜力.(3)根据其有机质的来源,类型及实际勘探效果,认为海相碳酸盐岩应属重要生油岩类之一.