• ▶ 2008-2024年被中国情报信息研究所评价中心评为“中国科技核心期刊”
  • ▶ 2019-2024年连续三届被中国科学院文献情报中心中国科学引文数据库CSCD(核心库)收录
  • ▶ 2021、2023年入编北京大学图书馆《中文核心期刊要目总览》
  • ▶ 2020-2024连续四年入选《科技期刊世界影响力指数(WJCI)报告》
张春潮, 李向全, 王振兴, 侯新伟, 桂春雷, 白占学, 付昌昌.不同碳酸盐岩岩性试片的溶蚀速率研究——以三姑泉域为例水资源与水工程学报[J].,2018,29(5):218-223
不同碳酸盐岩岩性试片的溶蚀速率研究——以三姑泉域为例
Dissolution rate of different carbonate rocks: A case study in Sangu Spring Basin
  
DOI:10.11705/j.issn.1672-643X.2018.05.36
中文关键词:  碳酸盐岩  溶蚀速率  碳汇  溶蚀模式
英文关键词:carbonate rock  dissolution rate  carbon sink  dissolution type
基金项目:中国地质调查局项目 (121201106000161309) ; 中国地质科学院基本科研业务费项目(JYYWF20180401)
作者单位
张春潮, 李向全, 王振兴, 侯新伟, 桂春雷, 白占学, 付昌昌 (中国地质科学院水文地质环境地质研究所 河北 石家庄 050000) 
摘要点击次数: 1831
全文下载次数: 913
中文摘要:
      评价岩性对溶蚀速率的影响以及查清不同的溶蚀模式,有助于提高岩溶碳汇强度估算精度,对于研究全球气候变化具有重大意义。采用溶蚀试片法及称重法,在山西晋东煤炭基地南部的三姑泉域干旱-半干旱岩溶区开展4种不同岩性、不同地貌单元以及不同埋藏深度的溶蚀试验研究。结果表明:对于不同的地貌单元,随着海拔的升高,溶蚀量呈现出逐渐减小的特征;对于不同的岩性试片,溶蚀量为石炭系生物碎屑灰岩>奥陶系泥灰岩>奥陶系灰岩>寒武系白云岩;对于不同埋藏深度的试片溶蚀量,从地上、表层到埋藏深度为0.2 m处,溶蚀量逐渐减小;埋藏深度0.2~0.5 m溶蚀量增加。在酸性矿坑水的作用下,4种碳酸盐岩试片的溶蚀量显著变大。总结了区内两种溶蚀模式:水蚀过程会消耗一部分的CO2,属于碳汇过程;酸蚀过程会释放出一定量的CO2,增加了一部分碳源,这对于提高区内碳酸盐岩的碳汇强度计算精度具有重要意义。
英文摘要:
      Estimating the influence of lithology on dissolution rate and finding out different dissolution types are very helpful to improve the accuracy on carbon sink intensity, which have great significance to the research on global climate change. Through tablet and weighing methods, the experiment of carbon specimen dissolution on four different lithological character, different geomorphic types and buried depth was carried out in arid and semi-arid areas, south of Jindong Coal Base, Sangu Spring Basin, Shanxi Province. The results showed that the dissolution quantities decreased with elevation rising in different geomorphic types. For different carbon specimens, the dissolution quantities in a descending order as: Carboniferous bioclastic grainstone, Ordovician marlstone, Ordovician limestone, and Cambrian dolostone. For different buried depth, the dissolution quantities decreased from ground to surface to underground 0.2 m, and increased from underground 0.2 m to 0.5 m. Under the action of acidic mine water, four different carbonate rocks′ dissolution quantities increased markedly. Two dissolution types of carbonate rocks dissolution were summarized. The process of water erosion consume a part of CO2, it belongs to the carbon sink. The process of acid erosion release a part of CO2, it increases a part of carbon source, which having a great importance for improving the carbon sink calculation accuracy.
查看全文  查看/发表评论  下载PDF阅读器
关闭