碳酸盐

Many methods for sample preparation have been applied in stable isotope measurements of ostracode shells from lake sediments.

由于湖泊生物碳酸盐样品不同的前处理方法可能会影响到稳定同位素测试结果的重现性和辨析率以及实验室之间数据的可比性，采用有效的方法对介形虫壳体进行预处理是保证介壳稳定同位素测试的一个关键环节。

Over the last three decades,measurements of the δ13C and δ18O values of ostracode shells have been extensively used in lake palaeoenvironmental reconstruction.

由于湖泊生物碳酸盐样品不同的前处理方法可能会影响到稳定同位素测试结果的重现性和辨析率以及实验室之间数据的可比性，采用有效的方法对介形虫壳体进行预处理是保证介壳稳定同位素测试的一个关键环节。

Many methods for sample preparation have been applied in stable isotope measurements of ostracode shells from lake sediments. However, for stable isotope measurements of biocarbonate samples, different methods will probably affect the resolution, reproducibility and inter-laboratory comparison of the measurement results.

由于湖泊生物碳酸盐样品不同的前处理方法可能会影响到稳定同位素测试结果的重现性和辨析率以及实验室之间数据的可比性，采用有效的方法对介形虫壳体进行预处理是保证介壳稳定同位素刚试的一个关键环节。

The cycles form part of a karstied carbonate-ramp sequence that is overlain by, and grades basinward into, siliciclastic turbidites.

该旋回在碳酸盐层序形成部分喀斯特，上覆向盆地方向进积的硅质碎屑浊积岩。

Areas with relatively stable tectonic settings and well preservation conditions,such as Sichuan basin,are characterized by multiple sources,early accumulation,oil-gas conversion,and late finalization;the Middle and Lower Yangtze areas overlain by Mesozoic and Cenozoic strata are characterized by secondary hydrocarbon generation and late re-(servoiring;) while the areas with outcropping carbonates,such as western Hunan and Hubei and Yunnan-Guangxi-Guizhou regions,are characterized by early hydrocarbon generation and late destruction and reformation.

以四川盆地为代表的构造相对稳定、保存条件好的地区，具有多源供烃、早期聚集、油气转化、晚期定型的特点；中、下扬子中、新生界覆盖区，具有二次生烃、晚期成藏的特点；湘鄂西、滇黔桂等碳酸盐岩裸露区，则表现为早期生烃、后期破坏改造的特点。

Shenglihe oil shales orientating in NWW-SEE with about 30 kilometers in length are located in the transitional belt between north Qiangtang basin and central uplift belt. The oil shales deposited in Upper Jurassic-Lower Cretaceous marine carbonates and are overlain by tremendous gypsum-salt strata.

胜利河油页岩位于北羌塘盆地与中央隆起之间的过渡带上，呈北西西-南东东向展布，长约30 km，赋矿地层为上侏罗-下白垩统海相碳酸盐岩，其上被厚层膏岩盐覆盖。

Dissolved pores, fractures and dissolved caves which is formed by dissolved pores more dissolution and treated as overlarge dissolved pores act primary storing and permeating space in the fractured and dissolved porous carbonate reservoir in the Northeastern of Sichuan Basin. Consequently, it forms unique reservoir types.

川东北裂缝－溶孔型碳酸盐岩储层是以溶孔、溶洞（溶孔进一步溶蚀扩大形成溶洞，可视为超大溶孔）、裂缝作为主要的储集渗透空间，从而形成了该区独特的储层类型。

Overmature gas in carbonate rock, biogenic gas, gas generated with coal evolution and gas evolved crude oil generation The geologic conditions for their occurences are analysed briefly, furthermore some problems related to the gas potential and its exploration are discussed in this paper.

本文初步划分了我国油田气，煤成气，碳酸盐岩过成熟气及浅层生物气四类主要气源，并简要分析了其赋存的地质条件，进而对天然气资源及勘探方向，进行了一些探讨。

Based on this idea, the author has chosen two typical loess sections of Luochuan, and Xifeng for this study, collected the successive loess columns; To probe the conditional experiments of BeO sample preparation and measurement, and improve the existing method; On the basis of the technology improvement, the author has finished 402 samples' BeO preparation and AMS measurement; Also at the same time, to separate quartz from samples at 1 cm interval for both Luochuan and Xifeng sections systematically, to carry out measurements of quartz grain-size, SUS, grey scale, carbonate content and bulk sample density; By using the grain size model, the author has set up the chronological framework for both Luochuan, and Xifeng sections and the time sequence of millennial scale abrupt climate events recorded in loess strata, and reconstructed the East Asian monsoon history over 130ka by using multi proxies; Finally, to discuss the possible mechanisms of palaeoclimatic changes tentatively.

详细地球科学的发展离不开高精度和高分辨率的研究。运用长寿命核素如〓Be作为环境过程的示踪，已成为不可替代的有效工具。本论文选择洛川、西峰两个典型的黄土剖面，连续采集柱状样；探索了BeO样品制备、测量的条件实验，改进了原有的方法，完成了402个BeO样品的制备和AMS测量；同时还系统地分离洛川、西峰剖面高分辨率（1cm）黄土、古土壤样品中的碎屑石英，测量了碎屑石英粒度，以及全样的磁化率、灰度、碳酸盐含量和容重等古气候代用指标；采用粒度年代模式建立了洛川剖面和西峰剖面的年代标尺，建立了黄土地层记录的千年尺度的气候突变事件的时间序列，多指标重建了最近130ka东亚季风变迁史；初步讨论了古气候变迁的可能机制。

New palaeogeographic theory and technical progress play very important roles in exploration and development of sedimentary mineral resources.

古地理学的理论发展和相关的技术进步在勘探开发沉积矿产资源等方面发挥了重要作用，开拓了在河流、三角洲及滑塌浊积扇、深水重力流沉积、滩坝、礁以及碳酸盐岩建隆中找油的新领域。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。