Geochemical survey of thermal system in Northeast China and their geothermometric characters

The chemical composition of several thermal springs around Changbaishan area has been investigated. Cenozoic basaltic rocks are widely distributed in Northeast China and geothermal characteristics have been described. About one hundred hot springs exist around Changhaishan Volcano at the border between China and D.P.R.Korea with high temperature about 82~C. The pH values of the spring water range from 6.9 to 7.1 and the total flow rate is about 4.8 L/sec. The chemical composition of the thermal springs is sodium carbonate; the high-mineral contents of thermal water are believed to have medicinal properties. Bathhouses are already built along the hot springs to take the advantage of the supposed healing properties. The high quality of those hot springs is believed to be utilitized for mineral water. The chemical equilibrium temperatures were estimated at about 160℃ based on the Na-K-Ca geochemical thermometer.     

对评估勘探设计的数学方法探讨

本文介绍了模糊综合评判的基本原理和数学模型。并给出了在勘探设计评估中因素集、评价集的具体意义及具体的评估过程。最后指出了模糊综合评判在勘探设计评估中的优越性。     

威海市五项措施抓好温泉资源开发

威海市温泉资源丰富，山东省已发现的18处温泉中。威海占有9处，为搞好温泉资源开发，威海市采取5项措施。提高温泉资源开发利用水平。①强化温泉资源开发审批。严格地热井的审批。对原有低效的地热开发设备进行升级改造，降低资源浪费损耗；对新开发单位。在申请前要制定综合开发方案，达不到要求的不予审批；要变零星审批、单井开发为统一规划、分区块连片开发、多井联网梯级利用。     

黄土覆盖区叠加元素分散晕的测量方法及找矿效果

本文探讨了黄土覆盖区叠加元素分散晕的测量方法——选择性提取法.这种方法在10～50m黄土覆盖的金矿体上方,能有效地发现异常,可满足隐伏矿体定位的要求.