The distribution characteristic and its significance of compound specific isotopic composition of ar

来源 :Science China(Earth Sciences) | 被引量 : 0次 | 上传用户:bloodsteven
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Aromatic hydrocarbons are generally main distillation of crude oil and organic extract of source rocks. Bicyclic and tricyclic aromatic hydrocarbons can be purified by two-step method of chromatography on alumina. Carbon isotopic composition of individual aromatic hydrocarbons is affected not only by thermal maturity, but also by organic matter input, depositional environment, and hydrocarbon generation process based on the GC-IRMS analysis of Upper Ordovician, Lower Ordovician, and Cambrian source rocks in different areas in the Tarim Basin, western China. The subgroups of aromatic hydrocarbons as well as individual aromatic compound, such as 1-MP, 9-MP, and 2,6-DMP from Cambrian-Lower Ordovician section show more depleted 13 C distribution. The 13 C value difference between Cambrian-Lower Ordovician section and Upper Ordovician source rocks is up to 16.1‰ for subgroups and 14‰ for individual compounds. It can provide strong evidence for oil source correlation by combing the 13 C value and biomarker distribution of different oil and source rocks from different strata in the Tarim Basin. Most oils from Tazhong area have geochemical characteristics such as more negative 13C9-MP value, poor gammacerane, and abundant homohopanes, which indicate that Upper Ordovician source rock is the main source rock. In contrast, oils from Tadong area and some oils from Tazhong area have geochemical characteristics such as high 13C9-MP value, abundant gammacerane, and poor homohopanes, which suggest that the major contributor is Cambrian-Lower Ordovician source rock. Aromatic hydrocarbons are generally main distillation of crude oil and organic extract of source rocks. Bicyclic and tricyclic aromatic hydrocarbons can be purified by two-step method of chromatography on alumina. Carbon isotopic composition of individual aromatic hydrocarbons is affected not only by thermal maturity, but also by organic matter input, depositional environment, and hydrocarbon generation process based on the GC-IRMS analysis of Upper Ordovician, Lower Ordovician, and Cambrian source rocks in different areas in the Tarim Basin, western China. The subgroups of aromatic hydrocarbons as well as Individual aromatic compounds, such as 1-MP, 9-MP, and 2,6-DMP from Cambrian-Lower Ordovician section show more depleted 13 C distribution. The 13 C value difference between Cambrian-Lower Ordovician section and Upper Ordovician source rocks is up to 16.1 ‰ for subgroups and 14 ‰ for individual compounds. It can provide strong evidence for oil source correlation by combing the 13 Most oil from Tazhong area have geochemical characteristics such as more negative 13C9-MP value, poor gammacerane, and abundant homohopanes, which indicate that Upper Ordovician source rock is the main source rock. In contrast, oils from Tadong area and some oils from Tazhong area have geochemical characteristics such as high 13C9-MP value, abundant gammacerane, and poor homohopanes, which suggests that the major contributor is Cambrian-Lower Ordovician source rock .
其他文献
灵活的硅片定向定位注入──先进的CMOS器件制造技术对离子注入技术发展的新要求。 Flexible Silicon Directed Positioning Injection - New Requirements for the Develop
从事广告创意工作十三年,曾先后为新飞电器、三一重工、宇通客车、伊利牛奶、中脉科技以及蒙牛酸酸乳等品牌创作过一系列创意、现任北京维传凯普副总经理兼执行创意总监的王
目的探讨维生素C(vitamin C,Vit C)对青春期邻苯二甲酸二丁酯(dibutyl phthalate,DBP)暴露致大鼠卵巢氧化应激的干预作用。方法将160只健康初断乳SPF级Wistar雌性大鼠随机分
目前,我国移动通讯手持机主要有两种形式:一种是公用网峰窝双工移动手持机,另一种是集群专业网中的移动手持机.专业网中的单工手机除可进行对讲外,还可进行电话通讯,由于单工
课堂教学是学生在校期间学习科学文化知识的主阵地,课堂学习是学生获得知识与技能的主要途径。因此,如何提高数学课堂教学效率是大家普遍关注的问题,也是优化教学、实现最佳
期刊
基本参数:产品型号:KJ0603产品重量:1kg规格(mm):320×220×90功率(W):10风量(m3/h):20~60噪音(dB):35dB推荐地点:汽车结构功能◆复合过滤网--集成了静电吸附和物理吸附的多
系统覆盖京津冀晋13万平方公里范围,地震后7秒内警报本报讯近日,地震预警四川省重点实验室传出消息,首都圈地震预警系统经过近一年半的建设,目前已建成并投入运行,将为首都圈
注入器输运线由α磁铁、四极磁铁、真空盒和束测元件组成,对输运线中的物理问题诸如聚束、横向匹配、注入时间调整、准直误差等进行讨论。在介绍了各主要元件的性能之后,给出输
动物权利保护者对德国港市汉堡与汉堡包之间的联系感到不满,于是出价10,500美元要求它改名为“菜堡”。人道对待动物协会(PETA)在给汉堡市长奥勒·冯·比斯特的信中写道:“
耕地肥力是提高作物产量的基础,在正常年份情况下,地力产量要占常规产量的56%-80%。各茬作物的地力产量,一般都有3个等级,每个等级粮食产量每亩相差50公斤左右。据2004年在德