epigenesis

1. Petrossian, T.Clarke, S.Methylation of DNA, protein, and even RNA species are integral processes in epigenesis.
   蛋白质，甚至RNA种类的甲基化是表观形成中完整的过程。
2. The study of metallogenic model of the bauxite deposits indicate that bauxite mineralization should be due to laterization during late stage of Late Devonian Period and early stage of Early Carboniferous Period and transportation-deposition of Upper Carboniferous Period as well as later diagenesis and epigenesis.
   成矿模式反映了铝土矿大致于晚泥盆世晚期至早石炭世早期红土化、晚石炭世搬运沉积以及后来的成岩后生作用和表生作用等阶段的演化历程。
3. The present reservoir has undergone epigenesis, evolution and reformation.
   成岩后生作用及储层演化，经历了各种次生改造，形成现今的储层面貌。
4. It shows that the basin has not been to the epigenesis stage but only to the late diagenesis stage.
   研究表明，由于沉积盆地未曾发生强烈坳陷，成岩作用并未进入后生成岩作用阶段，仅仅进入晚期成岩作用阶段。
5. In epigenesis, the Fe2+ oxidation forms green and red fog, Mn2+ oxidation forms brown, black materials, Cr3+ is easily leached out.
   在表生作用中，Fe2＋氧化形成翡和红雾，Mn2＋氧化成棕、黑色的物质，Cr3＋较易被淋失。
6. The interference factors in petroleum geochemical exploration are caused by the combination of natural geographical conditions, epigenesis and anthropological activity.
   油气化探的干扰因素是自然地理条件、表生地球化学作用及人类活动作用的结果。
7. In the study areas, the Permian siliceous rocks consisting mainly of large amount of siliceous organic remains which dissolved into colloidal solution of SiO2 and preserved in the sediments were formed by the replacement during the early stage of diagenesis-epigenesis.
   研究区的二叠系硅质岩类，主要由大量硅质生物遗骸溶解成溶胶状态的SiO2并保存在沉积物中，在成岩&后生阶段早期发生交代作用而形成。
8. Diagenesis and epigenesis are major factors to control reservoir development.
   成岩作用及成岩后生作用是控制本区储集层发育的主要因素。
9. The content, distribution and mode of occurrence of chromium in coals are influenced by many factors, such as coal-forming environment, coal-forming plants, and the epigenesis.
   煤中铬的含量和赋存状态受成煤环境、成煤植物和后生地质作用等因素的影响。
10. Based on reservoir influencing factors analysis, reservoir properties are mainly influenced by sedimentary microfacies and diagenesis epigenesis.
    对储层影响因素分析认为，储层物性主要受沉积微相及成岩后生作用的影响。

noun

1. a geological change in the mineral content of rock after the rock has formed