自生矿物

According to the fact that dawsonite and ankerite are the authigenic minerals forming at latest in sandstone, CO2 infilling was relatively late, possibly 46.2±2.1 Ma or later.

结合片钠铝石和铁白云石是砂岩中最晚形成的自生矿物，认为CO2注入时间相对较晚，可能为46.2±2.1Ma或者更晚。

The dominant cements and authigenic minerals include dawsonite, ankerite, calcite, secondary quartz oergrowths and authigenic clay mineral.

胶结物与自生矿物主要为片钠铝石、铁白云石、方解石、次生加大石英、自生粘土矿物。

In Surennuoer faulted zone, the authigenic mineral assemblage of dawsonite and ankerite are formed during the mutual action between CO2 fluids and sandstone, and then the reservoir properties of dawsonite-bearing sandstone becomes poorer.

苏仁诺尔断裂带CO2流体在与砂岩相互作用过程中，形成了片钠铝石和铁白石的自生矿物组合，导致研究区含片钠铭石砂岩储层物性变差。

The authigenic minerals formed before CO2 charging include multi-stages of calcite assemblages, kaolinite and secondary quartz overgrowths assemblages. While the main cements formed after CO2 charging are dawsonite and ankerite.

CO2注入前形成的自生矿物组合主要为多期方解石组合，高岭石、次生加大石英组合；CO2注入之后形成了片钠铝石和铁白云石组合。

The author creates the AutomaticallyDiscriminational Model for the Classification of Sandstones System, thatis to say, people can complete the vastly sample s classification of sandstonesaccurately and swiftly, meantime, diminish the possibility of mortal mistake. Based on the study of the basic sandstone component before embedding, the typeof authigenic mineral, and the forming mechanism of porosity in Upper Paleozoicreservoirs in Ordos basin, the author selects the reasonable experiment objects forWater-Rock Interaction modeling study, designs the relatively reactant and resultantduring the diagenesis period, builds the solid-liquid thermodynamics model with theprinciple of thermodynamic phase equilibrium for kinds of primary minerals (potashfeldspar, albite, anorthite, and pyroxene, hornblende) which dissolve in acidic media,and forms the corresponding thermodynamics test database.

在对鄂尔多斯盆地上古生界储层砂岩埋藏前组成、自生矿物类型和孔隙构成研究的基础之上，确定合理的沉积盆地水—岩相互作用模拟研究的实验对象，设计了埋藏成岩过程有关反应的反应物和可能的生成物，并通过热力学相平衡原理，建立了碎屑岩在埋藏成岩过程中各种骨架颗粒(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在酸性介质条件下发生溶解的固体—流体相化学反应热力学计算模型，并获得了相应的热力学数据库，在此基础上对储层砂岩中主要造岩矿物(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在埋藏成岩过程的酸性介质条件下发生溶解的热力学习性进行了论述。

Based on the analysis of the mutual action between CO2 fluids and sandstone, it is found that the higher content of dawsonite is the main cause for poorer reservoir properties, and the dawsonite is formed later than other authigenic minerals and no erosion occurres after the pores filling, which are the basic factors resulting in poor reservoir properties.

分析CO2流体与砂岩的相互作用发现，片钠铝石含量较高是储层物性变差的直接原因，而片钠铝石生长时间晚于其它自生矿物且在充填孔隙后没有发生溶蚀是储层物性变差的根本原因。

As cement, authigenic mineral or vein, dawsonite is found not only in marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.

片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。

Dawsonite is an orthorhombic, hydrated sodium aluminium carbonate appearing as radial, bunchy, trichoid platy collective and so on, filling in the pores among the grains, or as replacement of feldspar and detritus partly or on the whole, dawsonite is a kind of authigenic mineral which formed latest.

片钠铝石是一种斜方晶系、含水、钠和铝的碳酸盐矿物，砂岩中的片钠铝石是最晚形成的自生矿物之一，一般以放射状、束状、毛发状、板状等分布于砂岩的孔隙中或交代长石和岩屑等。

The authigenetic minerals' paragenetic sequence of paragenetic association III of outcrop sandstones is supergene leaching process-kaolinite-calcite- limonite.

露头砂岩的成岩共生组合III中自生矿物共生序列为：表生淋滤作用－高岭石地开石化－方解石-菱铁矿褐铁矿化。

This paper studys the the interactions between solution of primary minerals ofthe reservoir sandstone, the deposition of authigenic mineral, and the formingmechanism of secondary porosity in Upper Paleozoic reservoirs in Ordos basin withthe modeling theory of Water-Rock Interaction, builds the correspondingthermodynamics database and dissolution experiment database, and provides thecomparable and quotative data for the Water-Rock Interaction modeling research ofreservoir rock.

本论文将水—岩相互作用模拟(即热力学理论模拟计算和溶解模拟实验相互结合的方法)用于鄂尔多斯盆地上古生界碎屑岩骨架组分的溶解、自生矿物的沉淀及其与次生孔隙形成机制之间关系的研究，建立了相应的热力学数据库和溶解实验数据库，为沉积盆地储集岩的水—岩相互作用的模拟研究提供了可对比与借鉴的基础资料。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失