同位素

Hydrogen and Oxy gen isotope compositions illustrate the ore-forming liquid is mainly magmatic water partly mixed with some meteorological water.

成矿流体的氢氧同位素结果表明本区的成矿溶液以岩浆水为主，混有部分大气降水。

The principal contents of the symposia on stratigraphy in the 31st International Geological Congress comprise the following aspects:geologic time scale, biostratigraphy, event stratigraphy, sequence stratigraphy, magnetostratigraphy, isotopic stratigraphy, integrated stratigraphy, sedimentary facies and palaeogeography, palaeobiogeography, and tectono-palaeogeography.

介绍了第 3 1届国际地质大会有关地层学学术讨论的主要内容，包括地质年代表、生物地层学、事件地层学、层序地层学、磁性地层学、同位素地层学、综合地层学、沉积相与沉积古地理、生物古地理、构造古地理 10个方面。

The analysis of group component, stable carbon isotopic compositions and biomarker, and the geochemical characteristics of the oil and gas show that the oil comes from the Palaeogene and the oil reservoir is new bed-generating and old bed-storing; the gas comes from Carboniferous-Permian and the gas reservoir is old bed-generating and new bed-storing.

通过对油气族组成、稳定碳同位素组成及生物标志化合物进行油气地球化学研究，认为东濮凹陷三叠系砂岩裂缝性油藏原油来源于古近系，油藏类型为新生古储式；天然气来源于石炭-二叠系，气藏类型为古生新储式。

In order to identify the disputed oil source in Suaiqo-Wen'an region, Baxian sag, Jizhong depression, on the basis of source rock evaluation and oil-to-source correlation in this region, we recognized the typical Palaeogene oil and Carboniferous-Permian oil viz. two-ends oil, and established effective identification index from detailed analysis of biological marker, separation of nitrogen containing compound, stable carbon isotope and also make reference to the foreign studies on coal derived oil.

针对长期以来冀中坳陷坝县凹陷苏桥-文安地区存在的原油来源争议的问题，在对本区烃源层评价认识和油源对比的基础上，运用生物标志物精细检定、含氮化合物的分离检定、稳定碳同位素分析等技术手段，并结合国内外煤成油的研究成果，划分出了坝县凹陷典型的下第三系原油和石炭-二叠系原油，即两类端元油，并提出了有效的判识指标。

The relative ratio of 〓 over 〓 diols , defined as the diol index, serves as a good indicator for changes in paleoceanography and paleoclimate in southern South China during the last 30.0 ka.

长链烷基二醇的稳定碳同位素值在-30.17～-38.98‰之间，反映出其先质为水生生物——海洋黄绿藻Eustigmatophytes。

This paper, using oxygen isotope data of the planktonic foramninifera shells of the two box-cores in the South China Sea basin, is a study about paleoclimatic range of the South China Sea.

本文利用南海盆地箱式岩芯浮游有孔虫壳体的氧同位素资料，对南海全新世时气候的变化幅度进行了研究，并以浮游有孔虫壳体的δ~(18)O值为依据，将南海全新世时的气候变迁划分成4个阶段。

Ancient biomolecules obtained and characterized from in situ Quaternary fossils or sedimentary matrix have provided Quaternary scientists with quantitative and high resolution data that contain rich and some times unique paleobiological, paleogenetic, and paleoenvironmental information.

作者预见对第四纪地层中的原位和分散保存的古代生物分子的研究将在广度上以多分子综合研究而深度上与单体分子同位素技术相结合，为第四纪科学家们提供大量解决地质学和演化生物学问题的高精度数据。

Geological timing methods established(isotopic method,paleontologic method,pale omagnetic method)set the "absolute age" or relative era of certain time in the geological process.

地质作用过程持续时间的确定具有重要意义。前人已建立的地质定年方法（同位素法、古生物法和古地磁法）给出的是地质事件的&绝对年龄&或相对年代。

On the basis of isotope Sr variation, integrated with lithologic association, authigenic mineral assemblage, sedimentary structure and paleontologic evidence, the Shenglihe oil shale is classified into two major sedimentary environments such as tidal flat one and lagoon one.

依据Sr同位素的变化特征，并结合例面的岩性组合特征、自生矿物组合、沉积构造以及古生物标志，将胜利河油页岩划分为潮坪和澙湖两种沉积环境。

It is found that there is a co-relationship between the boron isotope and chemical composition of magmatic tourmaline: the δ〓B value increases with increasing Al and Li in Y-site of tourmalines. The low δ〓B values (-41. 1～-39. 01‰) in Altay No. 3 pegmatite, which is one of the lowest values found by now, imply that non-marine evaporites might exist in magma source, or the pegmatitic magma had been assimilated by them during its intrusion and emplacement.

阿尔泰3号伟晶岩最初形成的结构带中电气石的B同位素组成是目前所发现的最低值之一(-41.11～-39.01‰)，指示形成伟晶岩脉的初始岩浆可能由含非海相蒸发岩的泥质岩经变质深熔作用形成，或是伟晶岩岩浆在上侵定位过程中同化了含非海相蒸发岩地层的结果。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。