摘要
漳州热田属对流型地热田,是我国东南沿海地区目前所见温度最高(90m深处121.5℃)的一个。温度场研究表明,热田中心区具有最高温度和最大的地温梯度,此乃漳州盆地的排泄区。在盆地补给区,由于岩体中的热量被冷的地下水“冲刷”带走,该区见到低地温和低的地温梯度。显然,漳州热田温度场与盆地地下水活动密切相关。在分析研究152个钻孔测温资料的基础上,本文着重讨论了地下水的垂向和水平运动对热田温度场的影响。
Zhangzhou Geothermal Field is the highest in temperature one so far discovered in SE coastal area of China and belongs to 'convective type'. Observed highest temperature in drillholes exhibits 121.5℃ at a depth of 90 m. Temperature pattern shows that the highest temperature and geothermal gradient appears in the central part of the Field, which is the discharge area of the Zhangzhou Basin. In recharge area of the Basin, low temperature and gradient low are observed because the heat of the rock strata has been 'flushed out' by the cold groun-dwater. It is obvious that the temperature pattern of Zhangzhou Geothermal Field is closely correlated with the groundwater flow of the Basin. Based on temperature measurements in 152 boreholes, the effect of both vertical and lateral water flow on temperature pattern were discussed in this paper.
出处
《地质科学》
CAS
CSCD
北大核心
1990年第1期70-80,共11页
Chinese Journal of Geology(Scientia Geologica Sinica)
基金
中国科学院基金
关键词
地热田
温度场
对流型
地下水
geothermal field, temperature pattern, convective type, groundwater acti-vity
