【摘要】：酒泉東盆地與張掖盆地之間的地質(zhì)接觸關(guān)系,至今為止還沒有系統(tǒng)的研究。酒泉東盆地與張掖盆地之間的水力聯(lián)系一直不能做出正確的判斷。在分析區(qū)域資料的基礎(chǔ)上,進行了研究區(qū)地質(zhì)和電性特征研究工作,對比了地質(zhì)接觸關(guān)系與電性特征的符合程度,并進一步分析了酒泉東盆地與張掖盆地的地質(zhì)接觸關(guān)系和水力聯(lián)系。電性特征研究結(jié)果顯示酒泉東盆地與張掖盆地地質(zhì)接觸關(guān)系及其電性特征存在明顯的一一對應(yīng)關(guān)系。研究結(jié)論認為酒泉東盆地與張掖盆地的地質(zhì)接觸關(guān)系為北西-南東向的古近系新近系泥巖、砂質(zhì)泥巖隆起,且該隆起導(dǎo)致酒泉東盆地與張掖盆地在中、南部地下水水力聯(lián)系比較微弱,而北部基本無水力聯(lián)系。研究工作為黑河中游地下水水資源量評價、區(qū)域生態(tài)環(huán)境治理和恢復(fù)提供了科學(xué)的依據(jù)。
[Abstract]:The geological contact relationship between Jiuquan East Basin and Zhangye Basin has not been systematically studied so far. The hydraulic relation between Jiuquan East Basin and Zhangye Basin can not be judged correctly all the time. Based on the analysis of the regional data, the geological and electrical characteristics of the study area are studied, and the degree of coincidence between the geological contact relationship and the electrical characteristics is compared. The geological contact relation and hydraulic relation between Jiuquan East Basin and Zhangye Basin are further analyzed. The results show that the geological contact relationship and electrical characteristics of Jiuquan East Basin and Zhangye Basin have obvious one-to-one correspondence. It is concluded that the geological contact relationship between Jiuquandong basin and Zhangye basin is Neogene mudstone and sandy mudstone uplift in the NW-SE direction, and this uplift leads to the middle of Jiuquandong basin and Zhangye basin. The hydraulic relation of groundwater in the south is weak, but there is no hydraulic connection in the north. The research provides a scientific basis for the evaluation of groundwater resources in the middle reaches of Heihe River and the restoration of regional ecological environment.
【作者單位】： 中國地質(zhì)調(diào)查局水文地質(zhì)環(huán)境地質(zhì)調(diào)查中心;河北大學(xué)建筑工程學(xué)院;
【基金】：國家自然基金重點支持項目(91025019) 國土資源部地質(zhì)調(diào)查子項目(12120114018401)資助
【分類號】：P542;P641

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