摘要
采用岩相法对辽阳地区3个地层的石灰岩进行碱活性试验,研究石灰岩的微观结构及成岩环境。试验结论为辽阳中部地区中寒武统张夏组鲕粒亮晶灰岩、中奥陶统上马家沟组微晶砂屑灰岩为非碱活性;张夏组弱白云石化鲕粒灰岩、下马家沟组和上马家沟组含粘土质白云质泥晶灰岩、白云质泥晶灰岩,可见碱活性碳酸盐岩的结构特征,具潜在碱碳酸盐活性;张夏组弱白云石化鲕粒灰岩中同时含有碱硅活性组分,具潜在碱硅活性。
The method of lithofacies was taken for analysis the alkalinity activity of limestone within three stratigraphic in Liaoyang area,and to study the microstructure and diagenetic environment of limestone.The results indicate that oolitic sparry limestone within Zhangxia formation in middle Cambrian and sparry intraclastic calcarenite within upper Majiagou formation in middle Ordovician in central Liaoyang have unalkalinity activity.The weak dolomitic oolitic limestone within Zhangxia formation,with clay-bearing dolomitic micritic limestone and dolomitic micritic limestone within lower Majiagou formation and upper Majiagou formation,which have the structural characteristics of alkalinity activity carbonate,is judged to have potential alkalinity carbonate activity.At the same time,the weak dolomitic oolitic limestone within Zhangxia formation has alkalinity silicic acid activity components,which is judged to have potential alkalinity silicic acid activity.
作者
常思琼
CHANG Si-qiong(Fujian Branch of China National Geological Exploration Center of Building Materials Industry,Fuzhou 350001,China)
出处
《中国非金属矿工业导刊》
2022年第4期66-68,57,共4页
China Non-Metallic Minerals industry
关键词
石灰岩
微观结构
碱活性
岩相法
limestone
microstructure
alkalinity activity
lithofacies
作者简介
常思琼(1984-),女,汉族,工程师,研究方向:岩矿测试,E-mail:15524162617@163.com。
