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| 黄旗海湖泊沉积物醋酸淋溶液的元素组成及其环境意义 | |
| 引用本文： | 徐敏,贾玉连,徐佳佳,陈逸珺,张静然,张智,于玲玲.黄旗海湖泊沉积物醋酸淋溶液的元素组成及其环境意义[J].地球与环境,2013,41(2):132-137. |
| 作者姓名： | 徐敏 贾玉连 徐佳佳 陈逸珺 张静然 张智 于玲玲 |
| 作者单位： | 1. 江西师范大学地理与环境学院,南昌,330026 2. 南京大学现代分析中心,南京,210093 3. 中国科学院青海省盐湖研究所,盐湖地球化学重点实验室,西宁810008 |
| 摘 要： | 黄旗海HJC剖面是氧同位素三阶段晚期(MIS3a)与现代间冰期的堆积,包括深湖相、浅湖相、冲洪积相与风成沉积。为研究各沉积相湖泊碳酸盐沉积中元素地球化学特点,对沉积物用醋酸溶液进行了选择性化学淋溶,并分析了淋溶液的元素组成。结果显示:淋溶实验较好地揭示了各沉积相的环境特点,对早、中全新世环境变化有敏感的响应;湖泊自生碳酸盐过程存在自身的元素组合特点,但在一定程度上也继承了外源组分的特点。 |
| 关 键 词： | 湖泊沉积 醋酸淋溶 元素 环境变化 早中全新世 |
| 收稿时间： | 2012/4/25 0:00:00 |
| 修稿时间： | 2012/7/26 0:00:00 |
Elemental Composition of Leaching Fluid of Sediments in Huangqihai Lake and Its Environmental Implication |
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| XU Min,JIA Yu-lian,XU Jia-ji,CHEN Yi-jun,ZHANG Jing-ran,ZHANG Zhi,YU Ling-ling.Elemental Composition of Leaching Fluid of Sediments in Huangqihai Lake and Its Environmental Implication[J].Earth and Environment,2013,41(2):132-137. | |
| Authors: | XU Min JIA Yu-lian XU Jia-ji CHEN Yi-jun ZHANG Jing-ran ZHANG Zhi YU Ling-ling |
| Institution: | 1(1.School of Environment and Geography,Jiangxi Normal University,Nanchang 330026,China;2.Modern Analysis Center of Nanjing University,Nanjing 210093,China;3.Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China) |
| Abstract: | The HJC profile in the Huangqihai Lake is the result of stacking dating from marine oxygen-isotope stage 3 (MIS3a) to modern interglacial period. The deposition types include deep lacustrine facies, shallow lacustrine facies, diluvial facies and eolian facies. To investigate element geochemical characteristics and climatic implications in lacustrine carbonate deposits, acetic acid (HAc) leaching experiments were carried out on lacustrine deposit samples, and the elemental composition of leaching fluid was also analyzed. The leaching experiment revealed the environmental characteristics of all its periods and had sensitive respondency to the humid climate in Early Holocene. In the Huangqihai Lake, the spontaneous carbonate has its own element characteristics, while it also has inherited exogenous component characteristics to some extent. |
| Keywords: | lake deposit HAc leaching element climate change Early and Middle Holocene |
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