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对乌鲁木齐河源1号冰川积累区一支深达91.64m的透底冰芯进行了详细的层位及冰结构分析,结果表明,在20m深度以内,很好地保存了原始沉积的特征,但在70~80m深处还发现小密度的乳白色冰占优势的冰层,可能形成于小冰期,中层具有动力变质及再结晶作用共存及反复消长的结构特征(冰晶尺寸、气泡),未见单极大型组构,但出现弱竖环形组构,底层出现弱宝石状的多极大组构
The detailed ice layer and ice structure analysis of a deep ice core of 91.64m deep in glacier accumulation area of Heyuan No.1 in Urumqi was carried out. The results show that the original sedimentary characteristics are well preserved within the depth of 20m. However, It is also found in the depths of 70 ~ 80m that the ice layer dominated by the milky white ice of small density may be formed during the Little Ice Age. The middle layer is characterized by the coexistence and repeated depletion of dynamical metamorphism and recrystallization (ice crystal size and bubble) Large structure, but there is a weak vertical ring structure, the bottom of a weak gem-shaped multi-pole large structure