干旱区生态环境知识资源中心(Arid): 河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化

Arid

	河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化
其他题名	Climate change since the late Middle Pleistocene indicated by geochemical characteristics of major elements of Jing’erwa section in Yangyuan Basin, Hebei Province
	吉云平; 杨振京; 赵华; 王利康; 杨劲松; 董秋瑶
来源期刊	古地理学报
ISSN	1671-1505
出版年	2016
卷号	18 期号:3 页码:487-496
中文摘要	阳原盆地发育一套第四纪河湖相地层,其中分布着丰富的古人类遗存,是研究古人类生存环境的理想地区之一。利用常量元素氧化物含量及其比值,研究了阳原盆地井儿洼剖面河湖相沉积物地球化学元素特征,以及阳原盆地近220 ka以来的气候变化过程。结果表明:(1)井儿洼剖面沉积物成分以SiO_2、A1_2O_3和CaO为主,含量范围分别为27.85% ~ 53.23%、3.38% ~ 12.97% 和5.43% ~ 28.36%; Fe_2O_3和MgO含量也较高 (变化范围分别为2.65%~7.67%和1.93%~14.42%),整体反映出半湿润一半干旱的沉积环境。(2)该区域中更新世晚期以来的气候表现为暖湿一偏冷偏湿一暖偏湿一凉偏湿一暖干的变化特征;各阶段水热组合特征以及内部明显的次级气候波动,显示了环境演化的复杂性。(3)与深海氧同位素阶段的对比表明,本区气候变化与全球变化具有一致性的同时也存在明显的区域特征。
英文摘要	Filled up by a succession of Quaternary fluvial and lacustrine sediments, and containing a large number of remains of ancient human beings, Yangyuan Basin is one of the ideal regions to study the living environmental background of ancient human beings. Based on the contents and their ratios of major element oxides, geochemistry elements characteristics of Jing’erwa section as well as the climate change process of Yangyuan Basin since 220 ka were studied. The results showed that: (1) The sediment of Jing’erwa section was mainly composed of SiO_2, Al_2O_3 and CaO, with the contents of 27.85% ~ 53.23%, 3.38% ?12.97% and 5.43% ?28.36% respectively. Contents of Fe_2O_3 and MgO, with the range of 2.65% ?7.67% and 1.93% ~ 14.42% respectively, are also considerable. Those reflected the environmental change from semi-humid to semi-arid.(2) The climate in this area since the late Middle Pleistocene varied from warm-wet, slightly warm-slightly wet, warm-slightly wet, cold-slightly wet to warm-dry. Features of hydrothermal combination and evident secondary climatic fluctuations of each period reflected the complexity of environmental evolution.(3) Comparison with the oxygen isotope phases of deep sea shows that the changing process of climate for the Yangyuan Basin not only responds to the trend of the global climate change but also bears obvious regional features.
中文关键词	阳原盆地 ; 井儿洼剖面 ; 常量元素 ; 古气候变化 ; 更新世
英文关键词	Yangyuan Basin Jing’erwa section major element palaeoclimate change Pleistocene
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:5729627
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234420
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
推荐引用方式 GB/T 7714	吉云平,杨振京,赵华,等. 河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化[J],2016,18(3):487-496.
APA	吉云平,杨振京,赵华,王利康,杨劲松,&董秋瑶.(2016).河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化.古地理学报,18(3),487-496.
MLA	吉云平,et al."河北阳原盆地井儿洼剖面常量元素地球化学特征揭示的中更新世晚期以来气候变化".古地理学报 18.3(2016):487-496.