【摘要】 从材料力学、分子拓扑体积和热力学的角度论述了有机酸盐在碳酸盐岩中可能存在的理由。碳酸盐岩中,以前认为主要来源于包裹体中的有机质和晶包有机质的酸溶有机质,有可能主要来自于碳酸盐中的有机酸盐。因为:①粗略估算了样品粉碎过程中包裹体数量的损失,结果表明包裹体在粉碎过程中损失巨大;②定量计算了一部分有机分子的拓扑体积,计算结果表明晶包有机质在碳酸盐岩中不易大规模存在;③通过对有机酸盐和碳酸盐在河水和海水环境中的溶解—沉积平衡分析,得到有机酸盐可以和碳酸盐一样溶解在河水里被运移,在海水的环境里则可以和碳酸盐一起沉淀的理论结果;④进一步通过有机酸盐和碳酸盐的热力学分析证明有机酸盐和碳酸盐在成岩过程中也是稳定的。更多还原

【Abstract】 The reasons why there possibly exists organic acid salt in carbonate rocks are discussed from the angles of the mechanics of materials, the molecular topological volume and the thermodynamics in the paper. In carbonate rocks, the acid-soluble organic matters, which were formerly considered to be originated from both inclusion and crystal enclosure organic matters, maybe mainly originate from the organic acid salt in the rocks, because ①most of the inclusions in carbonate rocks were damaged in the process of comminuting samples; ②through calculating the topological volumes of some organic molecules, it was indicated that the crystal enclosure organic matters were not easy to exist extensively in carbonate rocks; ③according to the dissolution-deposition balance analysis of the organic acid salt and carbonate in river water and seawater environments, it was concluded that the organic acid salt might be dissolved and migrated as the carbonate in the river water environment and be deposited out with the carbonate in the seawater environment; and ④ in light of thermodynamical analysis, it was shown that both the organic acid salt and the carbonate were stable in the process of diagenesis. (Financed by the 973 Program project, No.2001CB209102)更多还原