globalchange  > 气候变化与战略
CSCD记录号: CSCD:5395639
论文题名:
陕西吴起金丁黄土剖面末次冰期的环境记录
其他题名: Environmental records of the last glacial period on Jinding loess profile in Wuqi, Shannxi province
作者: 郭娇; 王伟; 吴利杰
刊名: 干旱区资源与环境
ISSN: 1003-7578
出版年: 2015
卷: 29, 期:4, 页码:143-147
语种: 中文
中文关键词: 古气候 ; 末次冰期 ; 黄土剖面 ; 磁化率 ; 粒度 ; 有机碳 ; 光释光 ; 吴起
英文关键词: loess profile ; paleo-climate ; the last glacial period ; magnetic susceptibility ; grain-size ; total organic carbon ; optically stimulated luminescence
WOS学科分类: GEOLOGY
WOS研究方向: Geology
中文摘要: 通过金丁剖面黄土地层410组土样的磁化率、粒度和有机碳的测试数据,并结合年代学数据资料,对该地区末次冰期期间的古气候变化特征进行了相关分析。结果表明:该地区黄土剖面较完整地记录了末次冰期的气候变化。其末次冰期沉积由2层厚层黄土夹1层弱土壤化古土壤组成,其中L_1SS_1又可分为3层古土壤夹2层黄土;末次冰期期间,该区经历了3个气候变化阶段:干冷-温凉湿润-干冷的过程,气候变化由L_(1-3)的显著干冷到L_(1-2)的气候较为温凉湿润,再到L_(1-1)的显著干冷气候变化,且气候变化的时间节点大约在43.0ka和27.4ka。
英文摘要: Through the test data of magnetic susceptibility,grain size and organic carbon of 410 soil samples in Jinding loess profile,and combining the chronology data,we analyzed paleo-climate change during the last glacial period in the region. The results show that the loess profile in the region has a complete record of the last glacial climate change. The sediments of the last glacial period comprise 2 thick layers of loess intercalated with 1 weak paleo-soil,while L_1SS_1 includes 3 paleo-soil layers sandwiched by 2 loess layers. During the last glacial period,the area had experienced three climate change stages: From dry and cold to cool and wet,and then to dry and cold. The climate might become from significant dry and cold in L_(1-3) to relatively cool and wet in L_(1-2),and then to significant dry and cold of L_(1-1),and the time nodes of climate change were about at 43. 0 ka and 27. 4ka.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/149378
Appears in Collections:气候变化与战略

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作者单位: 中国地质科学院水文地质环境地质研究所, 石家庄, 河北 050061, 中国

Recommended Citation:
郭娇,王伟,吴利杰. 陕西吴起金丁黄土剖面末次冰期的环境记录[J]. 干旱区资源与环境,2015-01-01,29(4):143-147
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