湖泊学的

This thesis has made a deep study on lacustrine sequence stratigraphy and its application to oil and gas exploration and development, based upon the latest theory of sequence stratigraphy, limnology and petroleum geology incorporated with sedimentology, geophysics, tectonics, geochemistry, paleontology, paleoecology, ichnology, paleogeomagnatics and mislaneous analytical means.

"济阳坳陷下第三系沙河街组油气层序地层学研究"以层序地层学、湖泊学和石油地质学的最新理论为指导，充分利用丰富的地震、测井、岩心、录井和油藏工程等资料，综合沉积学、地球物理学、构造学、地球化学、古生物学、古生态学、遗迹学、古地磁学及多种分析测试手段对湖泊层序地层学及其在油气勘探开发中的应用进行了深入探讨。

Ecology and sedimentology research on the lake show that human explore the lake immoderately is the main reason why the ecological system of the lake is broken.

湖泊生态学和沉积学的研究表明，人类对湖泊的不合理开发，是破坏湖泊生态系统的主要原因。

Three kinds of sedimentary facies were identified, namely, the terrestrial river, lake, and the transitional facies of marine-terrestrial lagune base on the characteristic of the lithology, the sedimentary structure, and the geochemistry characters.

根据岩石学、沉积构造和地球化学特征，识别出三类沉积相：即陆相河流、湖泊和海陆过渡相的有障壁滨岸。

The Lower/Upper Cretaceous boundary in Songliao Basin is,therefore,between the Quantou and Denglouku formations,instead of between the Quantou and Qingshankou formations.2.The dark mudstones and shales in the Member 1 of Qingshankou Formation are of high organic carbon and low diasteranes contents.Organic geochemical characters are illustrated by biomarkers of 28,30-bisnorhopane and gammacerane,and positive excursion of kerogen isotopes.It is suggested that the dark mudstones and shales in the Member 1 of Qingshankou Formation are the products of lake anoxic period.It corresponds to the oceanic anoxic event at Cenomanian-Turonian boundary in Cretaceous.3.Based on the study of biostratigraphy,chronostratigraphy,magnetostratigraphy and event stratigraphy,a correlation of the lacustrine sequence to marine standard has been proposed,i.e.,the Quantou Formation corresponds to Cenomanian stage,Qingshankou Formation correlates to Later Cenomanian-Early Turonian,Yaojia Formation to Later Turonian-Coniacian,Nenjiang Formation to Santonian-Campanian.Sifangtai and Minshui Formations to Maastrichtian. 4.Analysis of lithology,lithofacies and microfossils of Cretaceous in Songliao Basin, shows that shore and shallow lake facies yield the most abundant microfossil groups,and the predelta and deltaic distributary plain facies rich in fossils as well.In the shore and shallow lake areas during the high level periods(such as Qingshankou and Nenjiang sedimentary periods),the lacustrine biota are of high diversity and high abundance.

因此，松辽盆地上、下白垩统的界线应在泉头组的底界，即泉头组与登娄库组之间，而不是泉头组的顶界。2、青山口组一段黑色泥岩、页岩具有有机碳含量高、重排甾烷含量低，生物标志物出现28，30—双降藿烷和伽马蜡烷，干酷根碳同位素具有正向偏移等有机地球化学特征，表征为青山口组一段黑色页岩、油页岩是古湖泊缺氧事件的产物，它对应于白垩纪古海洋Cenomanian—Turonian期界线附近缺氧事件，二者具同步性。3、通过生物地层学、年代地层学、磁性地层学和事件地层学研究，认为泉头阶大体相当于Cenomanian阶，青山口阶相当于晚Cenomanian—早Turonian阶，姚家阶对应于晚Turonian—Coniacian阶，嫩江阶对应于Santonian—Campanian阶，四方台阶和明水阶相当于Maastrichtian阶。4、通过对松辽盆地上白垩统的岩性、岩相及微体化石分析，认为滨浅湖相是微体生物群最为发育的相带，其次为三角洲前缘相和三角洲分流平原相。

The coring was successfully operated on the winter ice-cover of the lake in 2000 and the pioneer practice of the ""off-the-ice"" coring proves to be very useful and economic for taking quality cores from lakes in northern China.A multidisciplinary investigation has been carried out on core HQH4, one of the three 11-m-long cores. Results from previous investigation include lithostratigraphy, radiocarbon dating, paleoecology of Ostracoda, stable isotopic record of ostracod shells, total nitrogen and organic carbon, C/N ratio, 81 C of organic matter etc.

在对深度为11米的HQH4岩芯开展了~(14)C年代学、岩性地层学、介形类古生态及介壳稳定同位素、有机碳和总氮及C/N比值、有机碳同位素等多学科综合分析测试和研究工作的基础上，本硕士学位论文研究侧重开展了：1HQH4岩芯烧失量(Loss-on-ignition)的系统分析测定及该地层学变量的古湖泊和环境变化意义的研究；2沉水植物川蔓藻化石种子生态学特征及其在黄旗海湖泊水位重建和气候变化研究方面的重要意义的研究。

Above all, it is feasible that the mineralogy characteristic of wild carp otolith appraise and dynamicly monitor the quality of the airtight lake.

由上可知，利用野生鲤鱼耳石的矿物学特征对密闭湖泊水质进行评价和动态监测具有可行性。

Sedimentary testate amoebae are very useful in quantitative reconstruction of sea level changes, paleohydrology, and paleoclimate, which are mainly in the studies of paleolimnology and human activities.

有壳变形虫化石在古湖泊学与人类活动、古水文、古温度、第四纪海平面变化的定量重建等方面具有独特而重要的研究价值。

Consequently, the enzymatic hydrolyzable P may contribute to the internal loading of the eutrophic lake, and stratification of kinetics and compositions of phosphatase in shallow lake is theoretically noticeable.

因此，富营养湖泊沉积物中磷的&内负荷&应有可酶解有机磷的含义，浅水湖泊中磷酸酶的活性组成和动力学参数的分层现象当为湖沼学研究中值得深入探讨的新理论问题。

To establish a general and quantitative platform of lake ecosystem management, predictive limnological researches on mid-lower Yangtze shallow lakes were carried out systematically in 46 small- to medium-sized lakes, using data from field investigations and references.

为建立适用范围较广的湖泊生态系统定量管理平台，本研究通过对46个中小型湖泊的实地调查，并运用部分文献资料，系统地开展了长江中下游浅水湖群的预测湖沼学研究。

Taphonomic reconstruction of ecology and preservation depends on the applicability of analogous processes in modern ecology and limnology.

鱼化石埋藏学方法在古湖泊环境研究中主要是利用鱼死亡及其骨骼解体和保存的方式，去推测湖泊的水文状况、沉积环境、群落结构、鱼类的生活史、死亡方式和保存特征等，这种方法的可行性取决于对现代湖泊中生物与环境对应关系的观察研究。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。