本文選題：溫泉 + 鹽泉��； 參考：《中國(guó)地質(zhì)大學(xué)(北京)》2017年碩士論文

【摘要】：云南西北部和西藏東南部靠近云南的芒康鹽井地區(qū)地處滇藏地?zé)釒?地?zé)豳Y源比較豐富,出露較多的溫泉和鹽泉,且地形起伏顯著,構(gòu)造活動(dòng)強(qiáng)烈,斷裂十分發(fā)育。本文研究對(duì)象主要有上橋頭溫泉、下給溫泉、擦曲古溫泉、天生橋溫泉、大東溫泉、阿東溫泉、西魯溫泉、曲孜卡溫泉和鹽井鹽(溫)泉。研究該地區(qū)溫泉和鹽泉的特征和鈣華成因?qū)Ξ?dāng)?shù)販厝望}泉資源的開(kāi)發(fā)利用具有重要的意義。研究區(qū)溫泉的水溫為39~70℃;pH值為5.9~7.5;TDS為258~3430 mg/L,其中小于1 g/L的溫泉較多;鹽井鹽泉水溫為21~49.5℃,pH值為5.9~6.8,TDS為26~110.5 g/L。上橋頭溫泉、下給溫泉、擦曲古溫泉、天生橋溫泉、大東溫泉、阿東溫泉、西魯溫泉、曲孜卡溫泉、鹽井鹽泉水化學(xué)類型分別為HCO3?SO4-Ca?Mg、HCO_3~-Na?Ca、HCO_3~-Na?Mg、HCO_3~-Ca?Mg、HCO3?SO4-Ca?Mg、SO4?HCO_3~-Na?Ca、SO4?Cl-Na?Ca、HCO_3~-Na和Cl-Na。研究區(qū)溫泉和鹽泉的δ2H為-147.5‰~-112.9‰,δ18O為-16.8‰~-12.3‰,顯著偏負(fù),大部分水樣點(diǎn)出現(xiàn)不同程度的出現(xiàn)“18O漂移”現(xiàn)象,同位素?cái)?shù)據(jù)表明泉水均起源于大氣降水。利用δ2H和δ18O估算它們的補(bǔ)給高程為3000~4516 m;補(bǔ)給區(qū)溫度為-3.9~5.2℃;利用鐳-氡法估算泉水的年齡為316~1963 a。利用地?zé)釡貥?biāo)法估算熱儲(chǔ)溫度為59.8℃~202.2℃;利用循環(huán)深度公式估算地下熱水循環(huán)深度為1980~4504.5 m;利用冷熱水混合法估算冷熱水混合比例為18%~82%;阿東溫泉出露地層主要為三疊系火山碎屑巖,受德欽-中甸-大具深大斷裂帶控制,在周圍山區(qū)接受大氣降水補(bǔ)給后,沿導(dǎo)水通道進(jìn)行深部循環(huán),并經(jīng)過(guò)大地?zé)崃鞯募訜嵘仙恋乇硇纬蓽厝?為深循環(huán)泉,其余溫泉和鹽泉也為深循環(huán)泉。上橋頭溫泉、擦曲古溫泉、西魯溫泉和曲孜卡溫泉沒(méi)有沉積鈣華,下給溫泉、大東溫泉和阿東溫泉的4、5號(hào)泉眼一直在沉積鈣華,天生橋溫泉和阿東溫泉的1、2和3號(hào)泉眼以前沉積鈣華現(xiàn)在已不沉積鈣華。通過(guò)對(duì)比有鈣華沉積溫泉和無(wú)鈣華沉積溫泉的水化學(xué)特征,發(fā)現(xiàn)鈣華的沉積需要較高含量的Ca~(2+)和HCO_3~-作為物質(zhì)基礎(chǔ);Ca~(2+)/HCO_3~-值需達(dá)到0.1以上;Ca~(2+)和HCO_3~-分別占主要陽(yáng)離子和陰離子的毫克當(dāng)量百分?jǐn)?shù)要大于25%;泉水的方解石、文石和白云石的飽和度大于0,或者接近于0,有利于碳酸鈣的沉積;
[Abstract]:The Mengkang Yanjing area in northwest Yunnan and southeastern Tibet is located in the tropics of Yunnan Tibetan region. The geothermal resources are abundant, and there are many hot springs and salt springs exposed, and the topography is obvious, the tectonic activity is strong, and the faults are well developed. The main research objects of this paper are the hot spring of Qiaotou, the hot spring of lower giving, the hot spring of Cuckoo, the hot spring of Tianshengqiao, the hot spring of Dadong, the hot spring of Adong, the hot spring of Xilu, the hot spring of Jizika and the salt (warm) spring of salt well. It is of great significance to study the characteristics of hot springs and salt springs in this area and the origin of Caohua for the exploitation and utilization of local hot springs and salt springs. In the study area, the water temperature of the hot spring is 390.70 鈩，

本文編號(hào)：1825193