APPLICATIONS OF ESR DATING AND ~(18)OPALEOTEMPERATURE DATA FOR STUDIES ONQUATERNARY SEA LEVEL CHANGES     

黄培华  彭子成  金嗣炤  梁任又  全裕才  王兆荣 《中国海洋湖沼学报》1989,(1)

Electron Spin Resonance (ESR) dating is a relatively new technique applicable also to the dating of materials from littoral zones and shallow sea regions, such as shells, corals, bones and teeth, foraminifera, diatoms, etc. ESR dating can span the time interval between the older limit of 14C dating and the younger limit of the K-Ar dating, an interval of 103-106 years. Therefore, ESR technique is very suitaHe for the measurement of the age of Quaternary sea-level changes. This paper gives some samples' results by ESR dating from Early Pleistoncene to Holocene.The Quaternary sea-level changes in China were mainly eustatisms that corresponded to the paleotemperature variation. We have just begun study on the 18O Paleotemperature in our continental area. Preliminary results show the temperature curve of the stalagmitic growth in caves corresponds well to the sea - level changes in 76-55×103 years B. P. ESR dating and studies of the 18O Paleotemperature in East China will raise studies on Quaternary sea -  相似文献   

电子自旋共振法年龄测定研究   总被引：3，自引：0，他引：3  

彭子成  梁任又  金嗣炤  黄培华  全裕才 《地理研究》1988,7(4):78-82

电子自旋共振(ESR)法适用于第四纪样品的年龄测定.本文报道近2年来作者等对鹿角、丽蚌、石筍、黄土、珊瑚和贝壳样品的年龄测定,其结果与地层、TL和¹⁴C年龄相符.预示ESR法将会成为第四纪年代学研究的有力工具.  相似文献   

ESR年龄测定法的研究及应用     

彭子成  金嗣炤  梁任又  黄培华  全裕才 《矿物岩石地球化学通报》1989,(3)

电子自旋共振(ESR)年龄测定法是在国外于1975年以后发展起来的一门新的断代技术。测定法的原理是直接测定某矿物晶体的顺磁电子(包括陷井电子和空穴)的数量。这些自由电子是由于样品本身以及环境中存在的放射性元素所产生的α、β、γ射线辐照诱导而成.当矿物的年龄越“老”,顺磁电子的数量也越多,相应于累积的总辐照剂量(TD)就越大。  相似文献