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1.
六盘山地区多处有臭水泉群出露。臭水泉就是含有Na2SO4、NaCl等盐类矿物离子，并排放硫化氢(H2S)气体的高矿化度咸苦水。在系统分析以往地质资料的基础上，借助ETM卫星图像，提取臭水泉群的分布信息，通过野外实地调查、访问、取样化验，初步查明臭水泉的位置、流量、水质及其对环境的危害，结合地层岩性、地质构造特点，分析臭水泉的地质成因。分析结果表明，六盘山地区的臭水泉主要分布于马东山复背斜的南北两端及东西两翼，以上升泉的形式出露于沟底，中、新生代高含盐量地层是臭水泉群中盐分的物质来源，北东向、北东东向、近南北向断裂和构造裂隙是臭水溢出的通道。臭水泉对环境的危害主要表现在：造成局部大气质量下降，污染地表水体和河谷潜水，造成土壤盐 相似文献
2.
岩溶水水化学特征在水文地质条件分析中的应用——以娘子关泉群岩溶水系统寿阳区为例 总被引：1，自引：0，他引：1
娘子关泉群岩溶水系统寿阳区从补给区到迳流区、排泄区水化学特征变化具有明显的规律性,岩溶水自北向南随着中奥陶统灰岩含水层埋深由浅变深,富水程度由强变弱,径流条件由积极趋滞缓,矿化度、总硬度和SO42-由低变高。为水文地质条件的分析与建立水源地和矿山防治水提供了地质依据。 相似文献
3.
郭杖子饮用天然矿泉水主要赋存于侏罗系早期花岗岩和太古界迁西群片麻岩的断裂构造带中。受地形切割影响，矿泉水以上升泉形式出露于花岗岩与片麻岩接触部位。经检测，该矿泉水为极低钠、低矿化度、重碳酸（硫酸）－钙·镁型锶饮用天然矿泉水。水源地附近生态环境优良，具有较好的开发利用前景。 相似文献
4.
水系沉积物中铜元素在不同地质背景（地质体）中的聚集特征,反映了成矿物质向周围介质的分散模式。通过对地质体中铜元素的分布特征研究,得出甘肃北山地区志留纪公婆泉群、奥陶纪牛圈子混杂岩和窑洞努如岩片以及震旦纪马鬃山混杂岩中的火山岩、变质碎屑岩、中基性及超基性侵入岩,是铜元素高度聚集的矿源岩。重点研究这些矿源岩,是分析铜异常和铜矿床空间叠合关系的关键,也是寻求区域找铜突破的关键,并对甘肃北山地区铜异常评价和找矿预测具有指导意义。 相似文献
5.
为了全面系统地认识济南十大泉群,文章采用对比分析法揭示十大泉群分布、流量、景观及水质特征,通过水文地质结构精细刻画与泉水排泄条件分析,进一步明确十大泉群成因差异性,归纳泉水形成模式,揭示十大泉群水循环的差异性。结果表明:十大泉群基本特征可大致分为两类,即排泄区6个泉群均为上升泉、南部补给区4个泉群均为下降泉;十大泉群形成模式可划分为五类,即构造凸起—灰岩“天窗”成泉、构造凸起—裂隙连通成泉、浅埋多层砂层与高渗透黏土导通成泉、断裂切割成泉和侵蚀溢流成泉模式;宏观上济南十大泉群水循环受北倾单斜构造控制,其输入条件、输导系统和输出方式差异较小;微观上6个承压型泉群泉水输出方式差异性明显,其灰岩覆盖层类型、厚度、渗透性及灰岩顶板埋深差别较大,导致泉水出流形态、流量及水质不同,形成各自独特的景观。岩溶泉水微观成因的详细研究可为济南十大泉群分类保护提供重要地质依据。 相似文献
6.
该区位于伊犁盆地南缘，分为2个水地质区：察布查尔山水地质区(I)和准平原水地质区(Ⅱ)(图1)．Ⅰ区系察布查尔山北坡古生代地层分布区，构造发育，岩性主要为古生代中酸性火山岩及碎屑岩、砾岩、砂岩，其中网状、网脉状基岩裂隙发育．山区接受大气降水的垂直补给．沿裂隙向盆地方向运移，于近盆缘处以下降泉或遇到断层以上升泉的形式出露．该区水量丰富，一般为0．02～3．50L/s，径流通畅，水化学类型多为 相似文献
7.
水文地球化学分析是研究煤层气富集条件及开采动力条件的重要方法。以沁水盆地中南段潞安矿区山西组3号煤煤层气井产出水为研究对象,开展了矿化度、H/O稳定同位素和主要离子浓度分布特征研究,结合区域构造展布特征及煤层气开发历史分析了区内煤层气开发优选区。结果表明：（1）潞安矿区分布有3个高矿化度区（五阳井田、余吾西南部、高河北部–古城井田）,地下水平均矿化度2 000～3 200 mg/L;1个低矿化度区域（常村井田和余吾井田中东部）,地下水平均矿化度1 500 mg/L。（2）煤层产出水中的δD和δ18O值均落在该区大气降水线附近,表明该区各含水层均有来自大气降水的补给,且煤层中的水主要来源于大气降水。（3）潞安矿区地表水从东部太行山裸露岩层区向下运移至含煤地层和下部奥陶系含水层,而后在灰岩系中向东出露地表,补给辛安泉域。研究区内两条区域断层文王山断层和二岗山断层是开放性导水断层,为地下水运移提供了通道,其展布特征决定了地下水的基本流动规律,其控制区域内的煤层气含量较低;地下水在挤压性断层中华–安昌断层附近、天仓向斜和许村向斜轴部相对滞流,矿化度较高,是煤层气富集区,也... 相似文献
8.
论北京玉泉山泉补给源——北京西山山前奥陶系岩溶水径流特征 总被引：1，自引：0，他引：1
北京西北郊玉泉山泉系由天下第一泉、迸珠泉、裂帛泉、试墨泉和宝珠泉等泉群组成,位于香峪向斜南翼的东北端,出露于奥陶系灰岩中,在西山山前诸岩溶大泉中享有盛名。该泉最大年平均流量1.66方/秒,水温13℃,为低矿化度、低硬度的中性水,水 相似文献
9.
主要根据药泉的地质和水文地质调查资料,并应用水化学分析方法研究分析了药泉的形成原因。研究结果表明,药泉作为接触带泉,接受东部兰尼巴黑云母花岗岩地层地下水补给,形成HCO3-Ca型、微矿化度矿泉水。泉水水温8．4℃,水中偏硅酸、铁含量分别高达98．48mg／L、16．16mg／L。 相似文献
10.
娘子关泉群水的来源再研究 总被引：11，自引：6，他引：5
本文对《山西省娘子关泉域岩溶水资源评价及其开发利用科研报告》中的“娘子关各泉组同出一源”的观点提出了疑问。这一观点的主要依据是娘子关“各泉组水温与矿化度基本相同”,但笔者通过泉水水温、矿化度、其它水化学特征及硫同位素的对比、水力联系等的分析,对上述依据进行了考究,进而对此观点提出了异议。依笔者所见,娘子关泉群(或各泉组)并非同出一源,而是有两个明显不同的源。 相似文献
11.
Measurements of radon contents of the exholved gas emanating from several hot water springs along the Western Coast of India are reported here. Concentration of radon in gas phase of individual springs varied in general, directly with the surface temperature of the water emerging from the respective springs, and showed little variation with time. Radon measurements were carried out continuously for about two years at two hot springs located at Ganeshpuri and Sathivali in the coastal area of Northern Maharashtra. The distant tremors did not cause any variation in the radon content. There was no marked local seismic activity during the period of observations, and the levels of radon stayed essentially constant. The measurements were also carried out at a hot spring in Assam, for about 8 months. These also did not show any significant variation; this period too lacked any marked local seismicity. 相似文献
12.
Liu Dongyan Luo Yunju Liu Xinrong 《中国地质大学学报(英文版)》2005,16(3):262-267
INTRODUCTION Southhotspring,smallhotspringandQiaokou barepresent,betweenthem,thegeothermalwaters ofthesouthhotspringsysteminthesouthhotspring anticlineinChongqing.Thesouthhotspringanti clineisageothermalwaterstoragesystem.Itex tendsfromnorthtosouthinthecentralpartof Chongqing.Itis45kmlongfromsouthtonorthand2kmwide.Thesouthhotspringandsmallhot spring,inthemiddleoftheanticline,arewell known touristattractionsfortheirgeothermalwaters.Ex cessiveexploitationledtoagradualdeclineinthewa terlev… 相似文献
13.
L. V. Zamana 《Doklady Earth Sciences》2012,442(1):81-85
The negative correlation between values δD and δ18O and concentrations of dissolved silicon in nitrogen hot springs is ascertained, which attests to the directed alteration
of their hydroisotopic composition towards being depleted in heavy isotopes during interaction in the water-rock system. This
fact can be allowed for the cases of the lighter isotopic composition of the hot springs of meteogenic origin relative to
that of local atmospheric precipitation. The shifts in points of isotopic composition of hot springs from the global meteoric
water line can be caused by alterations in either oxygen or hydrogen composition. 相似文献
14.
Assessment of interconnection between surface water and groundwater in Sawa Lake area,southern Iraq,using stable isotope technique 总被引：1，自引：0，他引：1
Interaction between surface water represented by the Euphrates River, natural springs, and Sawa Lake with groundwater (11 wells) in southern Iraq was investigated in this study. Water samples were collected for hydrochemistry and stable isotope (2H and 18O) analysis. Sampling of water from determined stations (10 stations along the Euphrates, 3 springs, and Sawa Lake) were carried out during two stages; the first was in October 2013(dry season) and the second one was in March 2014 (wet season). The aim of the research is to assess the interaction of groundwater–surface water, which includes Al-Atshan River (branch of the Euphrates River), Sawa Lake, and the groundwater in the study area by using hydrochemistry and stable isotope techniques. The results indicate that surface waters have a different type of water from that of groundwater. In δ 2H and δ 18O diagrams, all groundwater, springs, and Sawa Lake waters are plotted below the Global Meteoric Water Line (GMWL) and the local meteoric water line (LMWL) indicating the influence of evaporation processes and seasonal variation. The LMWL deviates by a d-excess about +13.71 toward the East Mediterranean meteoric water line (EMWL) indicating that the origin of the vapor source is the Mediterranean Sea. The river water has different isotopic compositions from that of groundwater, springs, and Sawa Lake. The final conclusion is that there is no clear influence of the groundwater on the river water while there is an intermixing between the groundwater in the different locations in the study area. 相似文献
15.
16.
Benjamin W. Tobin Abraham E. Springer David K. Kreamer Edward Schenk 《Hydrogeology Journal》2018,26(3):721-732
An understanding of the hydrogeology of Grand Canyon National Park (GRCA) in northern Arizona, USA, is critical for future resource protection. The ~750 springs in GRCA provide both perennial and seasonal flow to numerous desert streams, drinking water to wildlife and visitors in an otherwise arid environment, and habitat for rare, endemic and threatened species. Spring behavior and flow patterns represent local and regional patterns in aquifer recharge, reflect the geologic structure and stratigraphy, and are indicators of the overall biotic health of the canyon. These springs, however, are subject to pressures from water supply development, changes in recharge from forest fires and other land management activities, and potential contamination. Roaring Springs is the sole water supply for residents and visitors (>6 million/year), and all springs support valuable riparian habitats with very high species diversity. Most springs flow from the karstic Redwall-Muav aquifer and show seasonal patterns in flow and water chemistry indicative of variable aquifer porosities, including conduit flow. They have Ca/Mg-HCO3 dominated chemistry and trace elements consistent with nearby deep wells drilled into the Redwall-Muav aquifer. Tracer techniques and water-age dating indicate a wide range of residence times for many springs, supporting the concept of multiple porosities. A perched aquifer produces small springs which issue from the contacts between sandstone and shale units, with variable groundwater residence times. Stable isotope data suggest both an elevational and seasonal difference in recharge between North and South Rim springs. This review highlights the complex nature of the groundwater system. 相似文献
17.
K. Maya Prasenjit Das K. Sreelash K. Narendra Babu 《Journal of the Geological Society of India》2018,92(5):616-625
Spring water is a reliable source of potable water in many parts of the world. Uplifted coasts of the Southern Kerala host many high yielding cold water springs which emerge from the sand - clay interface of the Neogene outcrops. Lack of adequate studies on the hydrological and water quality aspects of these springs is challenging the wise use and management of these springs. Therefore, an attempt has been made to map the locations and study the water quality of the free-falling type of springs emerging from the Neogene outcrops exposed on the cliffed coasts of Southern Kerala, especially falling within the jurisdiction of Kollam and Thiruvananthapuram districts. A total of 31 springs from four distinct geomorphic settings has been located in our survey conducted in 2008–2009 period. But, our recent survey carried out in March 2017 revealed that about 10 % of the springs were dried out due to various reasons. The total spring water discharge during 2017 was about 450 liters/minute against the total discharge of 800 liters/minute in 2007–08 period. In general, the hydrochemistry of spring waters is dominated by alkali and strong acids, i.e. alkali-chloride type. Most of the hydrochemical parameters exhibit a great degree of seasonal and spatial variations and are well within the permissible limits (with the exception of pH) for all four groups of springs. The low mineral contents may be attributed to minimal weathering from silicate-rich rocks and insignificant leaching from soil due to infiltration from anthropogenic activities. The spring water quality in all the four groups of the study area is bacteriologically contaminated and therefore proper disinfection is required before human consumption. Most of the spring water samples are classified to be “excellent to good” for irrigation and is not expected to cause any salinity hazard. 相似文献
18.
应用泉钙华环境记录和地下水流动系统探讨娘子关泉群演变历史 总被引：3，自引：0，他引：3
从研究娘子关泉群出露区堆积的不同时期泉钙华入手，对泉群自中更新世以来的发育阶段进行了划分，在此基础上，运用地下水流动系统理论分析了泉群的时空演化过程．这一过程包括４个阶段：Ｑ２时期的泉群发育雏形期，Ｑ３时期的泉群发育全盛期，Ｑ４时期的泉群发育相对稳定期和近代泉群流量衰减期．随着时间的推移，泉点出露位置有规律地发生横向迁移和垂向下移．近年来由于人类活动引起区域性地下水位降低，从根本上改变了岩溶水流动系统的动态平衡，导致有的泉已干涸，有的将要干涸，泉群流量总体上呈现持续衰减趋势． 相似文献
19.
南京地下水开采引起的环境地质问题及防治对策 总被引：3，自引：0，他引：3
近些年来,南京市的地下水开采量呈上升趋势,引发了泉水干涸、地面沉降、塌陷、水质恶化等一系列环境地质问题。对此进行了全面细致的分析,并提出了防治这些环境地质问题的措施,对我国城市地下水资源的合理规划和管理具有一定的借鉴意义。 相似文献
20.
深井水温观测在中国已经开展了20多年,但目前对于水温响应机理的研究还不充分.而且利用温泉水对水温响应机理研究甚少.本文在2008年5月12日汶川8.0级地震前后,即2008年5月1日至7月4日,对重庆北温泉水(距震中约400 km)进行采样监测,发现泉水水温水量发生较大变化:震后水温下降了1℃:海拔相对较高的BWQ-2、BWQ-3、BWQ-4相继断流,监测点BWQ-1的水量增加了15 L/s;与此同时.各泉点Fe~(3+)、Mn~(2+)浓度于地震当日成倍增长,随后逐渐减小,7月4日时浓度与5月1日相当.重庆北温泉位于四川盆地东部边缘地带,受汶川地震强烈影响导致冷水下渗作用,海拔相对较高而温度较低的温泉水改道,并有其他来自裂隙或者地表的低温水汇入温泉含水层,Fe~(3+)、Mn~(2+)浓度的变化从水化学上印证了冷水下渗学说. 相似文献