地质论评2013，Vol.59Issue(3)：479-488,10.
青海尕斯库勒盐湖沉积物孢粉组合特征与铀分布关系初探
Priliminary Study of the Relationship between Pollen Assemblages and Uranium Distribution in Gasikule Salt Lake' s Sediments, Qaidam Basin
叶传永 1王志明 1赵世勤 1郝伟林 1韩军 1林效宾1
作者信息
- 1. 核工业北京地质研究院,中核集团铀资源勘查与评价技术重点实验室,北京,100029
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摘要
Abstract
The drill core of ZK06 in Gasikule Salt Lake,which was located at the southwest of the Qaidam Basin in Qinghai Province,was selected as the research object.Based on the pollen data,geochronology and uranium concentration in sediments,this paper discussed the relationship between uranium distribution and paleoenvironment.The results revealed that Gasikule Salt Lake undergo 6 times of saline deposition and 6 times of detrital deposit from 280ka.Paleo-vegetation changed from veld to desert steppe,and the paleo-climate changed from cool and mid wet to cold and dry.Uranium concentration in sediment was significantly correlated with total sporo-pollen concentration,shrubs and artemisia.The uranium concentration in pollen zone was three times compare to saline deposits.Finally,the arid and cold climate both went against the uranium enrich in sediment,but the temperate and wet climate were adversely.Pollen assemblage characteristics maybe provide paleovegetation and paleo-climate evidences for uranium and others trace elements sediment in salt lake.关键词
青海尕斯库勒盐湖/孢粉/古气候/铀分布Key words
Gasikule Salt Lake/pollen/paleo-climate/uranium distribution引用本文复制引用
叶传永,王志明,赵世勤,郝伟林,韩军,林效宾..青海尕斯库勒盐湖沉积物孢粉组合特征与铀分布关系初探[J].地质论评,2013,59(3):479-488,10.
