青海东北部第三纪西宁—贵德—化隆盆地充填特征、孢粉组合方式与古气候演变  

FILLING CHARACTERISTICS, SPOROPOLEN ASSEMBLAGE AND PALAEOCLIMATE VARIATION OF TERTIARY BASINS IN THE NORTHEASTERN QINGHAI-TIBET PLATEAU

作　　者：邓中林[1] 侯元才[1] 古凤宝[1] 于庆文[2] 

机构地区：[1]青海省地质调查院,西宁810012 [2]中国地质调查局,北京100812

出　　处：《青海地质》2000年第1期43-45,共3页

摘　　要：根据盆地孢粉组合、主要组分和盆地充填物质的颜色、性质、结构及原生沉积构造,对第三纪西宁—民和、贵德—化隆盆地进行沉积环境、植物群落分析,揭示出自古新世—上新世不同地质阶段植被面貌及其所代表的古气候特点,将盆地古植被、古气候演化划分为五个不同的阶段,并初步探讨植被演化与高原隆升关系。According to the sporopollen assemblages, main compositions and the color,property, texture and primary sedimentary structure of filling of Tertiary Basins, the sedi-mentary environment and plant community of Xining-Minghe and Guide-Hualong Basinshave been analyzed. Based on the plant cover and the palaeoclimate in various geologicalstages of plant cover from Paleocene to Pliocen Epoch, five evolutionary stages of plant coverand palaeoclimate have be divided. At last, the relationship between plant cover evolutionand plateau upliftingis preliminary discussed.

关 键 词：孢粉组合 盆地充填 古植被 古气候 

分 类 号：P532[天文地球—古生物学与地层学]