界线

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 experimental results of both setsof continua are similar: when compared with the monosyllable, the pho-neme boundaries between the second tone and the third tone of disyllableare shifted to the end of the second tone.

两组的实验结果一致：双音节第二和第三声的音位界线对比单音节的这一界线，都向第二声移动。

However, the threshold at which this distinction was made, and whether it was based on in-group favoritism or out-group derogation, was influenced by the nature of the situation and the task participants performed.

然而，这个区分的界线以及这个界线是基于内群体偏爱还是外群体贬损，受到情境的性质和被试所执行的任务的影响。

As we stand on one side of the antithesis God established in the world -- a line not drawn in the sand but set in stone -- we need to remain biblically clear-headed about marriage.

我们站在这些&主义&和罪的对立面，坚守神为我们在世上设立的原则——我们界线分明，这界线不是划在沙土上，而是刻在石头里。当我们这样做时，我们需要对圣经的婚姻观有一个清楚的了解。

He has made exceptionally extraordinary performances in every painting category: as for calligraphy, he can integrate seal character, grass character, regular script and official script and create his own calligraphical style; as for paintings, he can switch from different modern and traditional fields and express his own feelings with skill and ease but without forced intention.

我以&刀笔奇才，书画鬼手&兆晖，其言非过，他在艺术技法修养的全面来说，早已打破了花鸟，山水人物的界线，打破了中西的界线，任何一个绘画门类在他的笔下都有非凡的表现，在书法中他可以将篆草楷隶融成一炉，打造自己的书体，在绘画的形式中也可以出入现代和传统的不同领域，表达自我感受，游刃有余，绝不牵强。

Of Zhejue section and bed 31-39 of Mide section belong to PTB strata sets which can be correlated with that of the marine section.

层和密德剖面31-39层属于可与海相剖面对比的P-T系界线层组，P-T界线可能分别位于其间的67、48和36层内。

The application of the extension engineering method in regionalization avoided the shortcomings of single indicator, such as the aridity or precipitation, and conduced to the consummation of the physicogeographical regionalization, the establishment of the eco-geographical regional system of China, and the further research on the transitional areas.

运用可拓工程方法，以综合考虑引起区域自然景观分异、变化的主导因子为出发点，解决了中温带半湿润、半干旱区界线划分问题，弥补了单指标（如仅考虑干燥度或降水量）在区域界线划分中的不足；有助于综合自然地理区划的进一步完善和中国生态地理区域系统的构建；也有益于对生态过渡带的深入研究。

The Lower Middle Cambrian boundary in North China Platform has been defined by the extinction of the trilobite genus Redlichia and the first appearance of different ptychopariid genera, namely, Shantungaspis Xiang et al.

详细记述安徽淮南老鹰山下、中寒武统界线剖面及所含三叶虫动物群，提出在华北及东北南部地台区划分下、中寒武统界线新定义：即三叶虫Pagetia 的首次出现作为中寒武世的开始；描述5 科22 属34 种及未定种，包括2 新属16 新种。

Refer to the research findings of CHengDu Research Institute of Geosciences and Minerals(1990) and Nanjing Research Institute of Geography and Lake of Chinese Academy of Sciences(1989), according to the Guidebook of China Stratum(2000), the chronostratigraphy of Kunming Basin is divided into 4 age: the bottom of the Quaternary corresponding to M/G Boundary, age is 2.6Ma;the Bottom of the Mid-Pleistocene corresponding to B/M Boundary, age is 0.78Ma;the Bottom of the Upper-Pleistocene corresponding to the Blake event, age is 0.128Ma;the Bottom of the Holocene corresponding to the Gothenburg event,age is 0.012Ma.

本次研究获得了大量的测年数据，参考成都地质矿产研究所(1990)及中科院南京地理与湖泊研究所(1989)等的研究成果，按照中国地层指南(2000)的方案，厘定了昆明盆地第四纪年代地层划分：第四系底界对应古地磁松山反向期与高斯正向期界线处，年龄为2.6Ma；更新统中部底界对应古地磁布容正向期与松山反向期界线，年龄为0.78Ma；更新统上部底界对应古地磁布莱克事件附近，年龄约0.128Ma：全新统底界对应古地磁哥德堡事件附近，年龄约0.012ma。

The study of natural fullerenes is a new area of across fullerene science and geological science. So far natural fullerenes have been found in shungite, fulgurite, carbonaceous conglomerates in impact crater, E/K boundary carbonrich clay rock layer, T/P boundary layer, dinosaur eggshell, coal, heavy crude oil, solid bitumen and socalled seminatural fullerenes in common soots, Chinese ink sticks, commercial char, et al., only with low concentrations.

天然富勒烯研究是富勒烯科学和地质科学相交叉的一个新兴研究领域，迄今为止已在桑加岩、闪电熔岩、陨石撞击坑中的含碳质角砾岩、古近系/白垩系地层界线的含碳粘土岩、三叠系/二叠系界线岩石、恐龙蛋壳、煤、重质油、固体沥青以及半天然的烟灰、木炭、书墨等物质中检测到富勒烯的存在，但含量很低。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。