The properties of carbonate rocks are often the result of multiple, diagenetic events that involve phases of cementation (porosity occlusion) and dissolution (porosity enhancement). This study tests the hypothesis that the order of these events is a major control on final porosity and permeability. A three-dimensional synthetic model of grainstone is used to quantify trends that show the effect of early cementation, non-fabric selective dissolution, and then a secondgeneration of (post-dissolution) cement. Models are 3 mm3 with a resolution of 10 μm. Six simple paragenetic sequences are modelled from an identical starting sediment (without accounting for compaction) where the same diagenetic events are placed in different sequences, allowing for quantification of relative changes in the resultant porosity and permeability for each diagenetic event, the trajectory through time, as well as for each final rock. All modelled paragenetic sequences result in reductions in porosity and permeability, but the order of diagenetic events controls the trajectory and final rock properties. Differences in the order of early cement A cc ep te d A rt ic le

中文翻译：

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成岩事件的顺序控制碳酸盐岩孔隙度和渗透率的演变

碳酸盐岩的性质通常是涉及胶结（孔隙度闭塞）和溶解（孔隙度增强）阶段的多个成岩事件的结果。这项研究检验了这些事件的顺序是对最终孔隙度和渗透率的主要控制的假设。颗粒石的三维合成模型用于量化趋势，显示早期胶结、非织物选择性溶解和第二代（后溶解）水泥的影响。型号为 3 mm3，分辨率为 10 μm。六个简单的共生序列从相同的起始沉积物（不考虑压实）建模，其中相同的成岩事件被放置在不同的序列中，允许量化每个成岩事件的合成孔隙度和渗透率的相对变化，时间的轨迹，以及每块最后的岩石。所有模拟的共生序列都会导致孔隙度和渗透率降低，但成岩事件的顺序控制着轨迹和最终的岩石特性。早期水泥A cc ep te d Art ic le的顺序差异