摘要
合肥中生代盆地东部的义城凹陷、店埠凹陷、梁园凹陷均为新生代凹陷,在新生代凹陷深部,蕴藏着较丰富的低温地热资源,2012年至2016年,相关地勘单位相继在新生代义城凹陷内施工三口地热井,单井涌水量均大于500m3/d温度在30.0~34.5℃之间,水中含有较丰富的矿物质,其中氟、溴、锶等多种稀有元素含量达到有医疗价值浓度标准或矿水浓度标准,为弱碱性-碱性咸温热矿水。其成因类型为层状兼带状,单井产热能力小于10MW,为小型地热田规模。
In the eastern part of the Hefei Mesozoic basin, the Yicheng, Dianbu and Liangyuan sags are all Cenozoic sags, in the depth of which are abundant low-temperature geothermal resources held in store. From 2012 to 2016, exploration units constructed three geothermal wells in the Cenozoic Yicheng sag one after another. Single-well water outflow is all over 500m^3/d and water temperature in the range of 30.0-34.5℃. The water contains rich minerals, of which rare elements such as fluorine, bromine and strontium reach medical-use or mineral water concentration standards, belonging to slightly alkaline to alkaline saline warm mineral water. They are genetically bedded and banded, with single well output of heat less than 10MW, being small scale geothermal field.
出处
《安徽地质》
2017年第1期57-61,共5页
Geology of Anhui
关键词
新生代凹陷
低温地热
温热矿水.
Cenozoic sag
low-temperature geotherm
warm mineral water
