The phenomenon of optical luminescence (OL) is produced in the optical acting to the minerals, it is characteristic of the crystal structure of mineral and depends on the wavelenghths of simulating optical source. Dat...The phenomenon of optical luminescence (OL) is produced in the optical acting to the minerals, it is characteristic of the crystal structure of mineral and depends on the wavelenghths of simulating optical source. Dating with OL is based on the fact that the crystal has a large number of storage electrons, which comes from the action of natural radiation. As a consequence the emission process of photon is a leasing process of the storage electron in the crystal. However, if optical stimulation is continued there comes a time when all storage electrons have been emptied and so the integrated luminescence is proportional to number of storage electrons and hence to age of crystal since it accepted the natural radiation from the environment. There is a review of the principle,methodology and applying techniques of the dating with optical luminescence(DOL).展开更多
通过对巢湖凌家滩文化遗址的野外勘查、采样和室内磁化率、烧失量、化学元素及光释光年代分析,结合巢湖湖泊岩芯记录的中全新世环境特征、研究区较高分辨率遥感影像和文物考古成果,综合研究表明:古凌家滩人生活于中全新世气候适宜期,其...通过对巢湖凌家滩文化遗址的野外勘查、采样和室内磁化率、烧失量、化学元素及光释光年代分析,结合巢湖湖泊岩芯记录的中全新世环境特征、研究区较高分辨率遥感影像和文物考古成果,综合研究表明:古凌家滩人生活于中全新世气候适宜期,其文化的发展和繁荣处在气候由温暖湿润向温和略干转换的过渡阶段;晚更新世末期堆积形成的地面(OSL年代11.6±1.0 ka B.P.)是古凌家滩人生活的地貌面,本区古地貌面海拔以及拔河高度与现今不同,这与该区新构造运动沉降和气候-水文因素作用有关;中全新世温暖湿润的气候条件下,太湖山南麓台地被进一步切割为山前长条形岗地与河流相间的地貌形态,遗址所在的长岗岗地是东、西、南三面临水的"半岛"环境,河川相连,便于水运交通、渔猎和水稻种植。展开更多
文摘The phenomenon of optical luminescence (OL) is produced in the optical acting to the minerals, it is characteristic of the crystal structure of mineral and depends on the wavelenghths of simulating optical source. Dating with OL is based on the fact that the crystal has a large number of storage electrons, which comes from the action of natural radiation. As a consequence the emission process of photon is a leasing process of the storage electron in the crystal. However, if optical stimulation is continued there comes a time when all storage electrons have been emptied and so the integrated luminescence is proportional to number of storage electrons and hence to age of crystal since it accepted the natural radiation from the environment. There is a review of the principle,methodology and applying techniques of the dating with optical luminescence(DOL).
文摘通过对巢湖凌家滩文化遗址的野外勘查、采样和室内磁化率、烧失量、化学元素及光释光年代分析,结合巢湖湖泊岩芯记录的中全新世环境特征、研究区较高分辨率遥感影像和文物考古成果,综合研究表明:古凌家滩人生活于中全新世气候适宜期,其文化的发展和繁荣处在气候由温暖湿润向温和略干转换的过渡阶段;晚更新世末期堆积形成的地面(OSL年代11.6±1.0 ka B.P.)是古凌家滩人生活的地貌面,本区古地貌面海拔以及拔河高度与现今不同,这与该区新构造运动沉降和气候-水文因素作用有关;中全新世温暖湿润的气候条件下,太湖山南麓台地被进一步切割为山前长条形岗地与河流相间的地貌形态,遗址所在的长岗岗地是东、西、南三面临水的"半岛"环境,河川相连,便于水运交通、渔猎和水稻种植。
