成岩作用

At the stage of platform, the "higher Pb-Zn source bed" would be formed in the plantform-type carbonatite forma tions, especially in the first carbonatite position after every large-scale ingression, by enrichment of weathering deposition, diagenesis, biogenesis and organogenesis.

地台阶段，风化沉积成岩、生物有机质等富集作用形成了地台构造层的碳酸盐建造中（特别是大规模海侵后的第一个碳酸盐岩层位，如D〓、C〓、P〓。）的Pb、Zn上部矿源层。

Rather than indicating C isotope excursions, the Neoproterozoic data seem to represent normal isotope variations that occur during lithification and metamorphism.

这些新元古代样品的数据显示了碳同位素的漂移，但与此同时更表明在成岩和变质作用过程中普通同位素的变化。

A Late Permian Changxingian coral reef was recently discovered in Cili, Hunan Province, South China.

笔者对近期在湖南慈利发现的长兴期珊瑚礁的白云石化作用及成岩环境进行了研究。

A given tectonic force may be resolved into two parts: homogeneous stress and differential stress. Homogeneous stress refers to isotopic pressure,which is superimposed on the original pressure and affects the equilibrium of various chemical reactions. It is also a factor that influences petrogenesis,metallogenesis and metamorphism.

构造力可以分解为两部分一部分是均应力，指各向相等的应力，它叠加在原有压力之上，并且影响着各种化学反应的平衡，也是成岩、成矿和变质作用的影响因素。

Using Rali isotope fractionation effect to get methane isotope fractionation formula. According to the relationship between isotope fractionation of diagenesis and depth, and combined with sedimentary rate of the region, it is estimated that relict gas of the biothermocatalytic transitional zone gas in the representative basin.

应用瑞利同位素分馏效应推导了过渡带气低温催化作用甲烷同位素分馏公式，依据成岩过程同位素分馏与深度变化关系，并结合该区的沉积速率对典型盆地的过渡带气残余生气量的分数进行了估算。

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。

Trace element record is formed by the coupling action of early diagenetic perturbation and human pollution, and usually showes the covariance with iron or manganese record.

沉积物微量元素记录是早期成岩改造和人为活动污染综合作用的结果，往往与Fe或Mn的记录呈相关波动。

Based on a study of the magnetic fabric and rock deformation characteristics in combination with other data,it is inferred that the Dawangshan dynamometamorphic zone is resulted from superposition of multi-phase structural activities posterior to the intrusion and consolidation of magmatic rock in the Late Caledonian Period.

通过磁组构和岩石变形特征的研究并结合其他资料，推断出大王山动力变质带是在加里东晚期岩浆侵入成岩后，多期构造叠加作用的结果。

The ore-bearing fluid of the Dabaoshan deposit is related to magmatic thermal dynamic process, and volcanogene hydrothermal sedimentary polymetallic deposit on seabed was formed. The Fankou Ore-bearing fluid is related to circulation hydrothermal in deep formation, and middle-lower temperature Pb-Zn-Ag-Hg polymetallic sedimentary deposit by sea-floor thermal spring and overflowing was formed. The Hongyan ore-bearing fluid is related to the compaction water that formed by the basin's lithogeny process, and low temperature and pyrite only was formed.

大宝山型流体与岩浆热动力作用有关，形成海底火山热液沉积多金属矿床；凡口型流体与深部建造的循环热液有关，形成中低温海底热泉喷溢沉积铅锌银汞矿床；红岩型流体与盆地成岩压实水有关，形成低温单一黄铁矿矿床。

The secondary pores of the sandstones were formed by the dissolution of the aluminosilicate, tuffaceous interstitial material and carbonate minerals effect by the carbonic acid and organic acid produced in late diagenesis stage. Hydrocarbon emplacement and tectonic thermal event act a positive role in the preservation of the primary pore and the formation of the secondary pores.

砂岩次生孔隙主要是成岩晚期阶段的碳酸以及有机酸对长石等硅酸盐矿物、凝灰质填隙物以及碳酸盐矿物的溶蚀造成的，油气侵位及构造热事件对原生孔隙的保存及次生孔隙的形成起到了积极作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。