Место издания:The Geological Society of Korea Kongju, Korea
Первая страница:73
Последняя страница:85
Аннотация:The main problem of 14C dating in permafrost area: it is very complicate to separate autochthonous organic remains from penecontemporaneous. The problem of 14C dating of pollen which contained both in ground ice and host sediments is especially important. However the content of pollen and spores is rather insignificant.
Our technique (worked out by Alla Vasil’chuk) of pollen extraction from ice-wedge ice samples based on methods of samples pretreatment for AMS dating. Taking into account also features of pollen occurrence in ice-wedge ice. The main task of our methods to remove organic admixtures and quartz debris and to prepare relatively pure pollen concentrate without using carbon-based chemicals.