Recently , single - aliquot technique has been paid close attention in osl dating , because of its higher precision , less quantity , as well as normalization is avoided in single - aliquot 在光释光测年中，单片技术以其用量少、不需要归一化、精度高等特点，近年来备受人们关注。
The author summarizes the distribution law of gold deposits of fujian in space and time and studies the metallogenic epoch using the method of isotopic geochronology and geologic analysis 总结了金矿的时空分布规律，采用同位素测年和地质分析相结合的方法研究福建省金矿的成矿年代。
In recent years , the electron microprobe chemical dating technique has been advance development and achievements , this paper sysmaticly introduces the basic principle , sample prepation , analytical procedure and age calculation 近十年来电子探针化学测年技术发展迅速，并取得了丰富的研究成果。
This paper , based on u - senes dating of speleothem formations and fossil materials , provided the reliable age of this cite , and further discussed the important implications of the results to human evolution research in china 但该遗址至今只有“与柳江人年代相当”的相对年代估计。本文报道?前洞遗址的铀系测年结果，并讨论该遗址年代位置新证据对我国现代人起源研究的意义。
The cultural deposits which are bracketed by the two flowstone layers should be of an age between 55 and 110 ka . the sixth flowstone layer gave date of 300 ka , which is much too old compared with the previous 14c age of - 15 ka on fossil materials 第4 、 5钙板层间出土的石制品应是中国地区40 - 100ka间有人类活动的确证，表明“时间缺环”很可能只是测年技术应用不当造成的假象。
( 2 ) by altitude - area analysis , comprehensive study on river captures , c - 14 dating , loess indexes a analysis and method of environmental archaeology , the quaternary geomorphologic evolution in csmasp is researched thoroughly 二、通过高程?面积分析、河流袭夺综合分析、黄土阶地的碳- 14测年与沉积指标分析及环境考古方法，本文重点研究了鲁中南山地第四纪地貌发育的格局与过程。
At the same time it ' s advance and limitation is discussed , and it indicate chemical dating technigue on the electron - probe microanalysis has wildely the prospect of applincation in earth sciences 本文在简单介绍该技术发展历程后，进一步详细介绍该技术的基本原理、样品制备与分析、年龄计算方法等内容，最后讨论了该技术的优缺点，同时指出电子探针测年技术在地学中的具有广泛的应用前景。
We have carried out 230th / 234u dating on several intercalated calcite samples . the results show that the capping flowstone layer and the second one are holocene in time . the fourth flowstone layer is of an age of 55 ka , and the fifth one 110 ka 新生碳酸盐铀系法测年显示，张口洞堆积所代表的时间跨度比原认为的长得多，这一结果支持我国中、晚更新世人类遗址原有年代框架被总体压缩的观点。
We have carried out th / u dating on intercalated calcite samples . the results show that the capping flowstone layer is of an age of 94 ka , and the second one 220 ka . the fossil - bearing deposits which are bracketed by the two flowstone layers should be of an age between 94 and 220 ka 新生碳酸盐岩与骨化石的铀系测年结果表明：该地点覆盖含人牙化石堆积的表层钙板在约94ka以前开始形成，堆积叠压的钙板年代为约220ka ，人牙化石的年代应介于两者之间。
On the basis of generation and expulsion hydrocarbon history of source rock , seal formation history of cap rock , formation history of trap , active history of fault , oil or gas accumulation period using illite ' s ages , main oil or gas accumulation period was determined to be from the end of yimin formation to the early of qingyuangang formation 根据源岩生排烃史、盖层封闭性形成史、圈闭形成史、断裂活动史和伊利石测年技术，综合研究得到乌尔逊凹陷油气成藏的主要时期为伊敏组沉积末期?青元岗组沉积早期。
