Carbonate Aquifers(碳酸盐含水层)研究综述
Carbonate Aquifers 碳酸盐含水层 - For drinking-water supply wells, most high concentrations (>4,000 μg/L) were measured in samples from carbonate aquifers that resulted from water-rock interaction with Sr-bearing rocks and minerals. [1] Because of susceptibility to contamination and the ecological significance of cave and spring ecosystems, monitoring of flow and water quality in carbonate aquifers is particularly important. [2] However, their isotopic ratios did not allow discriminating between circulation in the volcanic and in the carbonate aquifers, as in the latter the isotopic composition differed from the original marine signature. [3] Although localized salinization of shallow aquifers has commonly been studied, geochemical constraints on the time scale of regional freshwater and seawater in coastal aquifers are limited especially in carbonate aquifers. [4] So, 22 VES using Schlumberger configuration (AB/2 = 500–700m) and 12 TEMS using in-loop configuration (square, ℓ = 200m) were carried out at the West El-Minia selected area for studying the Oligocene Clastic and Carbonate aquifers. [5] The Little Elbow River and its tributaries drain a bedrock system formed by repeated thrust faults that express as the same siliciclastic and carbonate aquifers in repeating outcrops. [6] Laminar flow through secondary openings (joints, fissures, faults, and bedding plane partings) also occurs in many carbonate aquifers. [7] Because of the large population of Florida and the dependence of that population on carbonate aquifers, the karst of Florida is has been extensively investigated. [8] This study is important to the understand of the origin of the major ions in groundwater and the geochemical processes in silicate-carbonate aquifers. [9] Groundwater flow discharging to springs from carbonate aquifers is governed by the interaction of slow matrix flow and fast fracture/conduit flow, which creates highly complex flow and transport conditions. [10] The geochemical evaluation of carbonate aquifers in Ngbo and environs has been executed to ascertain the major ion chemistry and quality of waters for domestic and drinking uses. [11] Carbonate aquifers are the primary source of freshwater in Cuba. [12] For fifty five water samples from carbonate aquifers, dD values varied from −43‰ to −10‰, and d18O values from −5. [13]对于饮用水供应井，大多数高浓度 (>4,000 μg/L) 是在碳酸盐含水层的样品中测得的，这些样品是由水-岩石与含 Sr 的岩石和矿物相互作用产生的。 [1] 由于对污染的敏感性以及洞穴和泉水生态系统的生态意义，监测碳酸盐含水层的流量和水质尤为重要。 [2] 然而，它们的同位素比率无法区分火山和碳酸盐含水层中的环流，因为后者的同位素组成与原始海洋特征不同。 [3] 尽管对浅层含水层的局部盐渍化进行了普遍研究，但对沿海含水层区域淡水和海水时间尺度的地球化学限制是有限的，尤其是在碳酸盐含水层中。 [4] 因此，在 West El-Minia 选定区域进行了 22 个使用 Schlumberger 配置（AB/2 = 500–700m）的 VES 和 12 个使用环内配置（正方形，ℓ = 200m）的 TEMS，用于研究渐新世碎屑和碳酸盐含水层. [5] Little Elbow River 及其支流排出由重复的逆冲断层形成的基岩系统，这些断层表现为重复露头中的相同硅质碎屑和碳酸盐含水层。 [6] 在许多碳酸盐含水层中也存在通过次生开口（节理、裂缝、断层和层理平面分界）的层流。 [7] 由于佛罗里达州的大量人口以及该人口对碳酸盐含水层的依赖，已对佛罗里达州的喀斯特地区进行了广泛的研究。 [8] 本研究对了解地下水中主要离子的来源和硅酸盐-碳酸盐含水层的地球化学过程具有重要意义。 [9] 从碳酸盐含水层向泉水排放的地下水流受慢速基质流和快速裂缝/管道流的相互作用控制，从而产生高度复杂的流动和输送条件。 [10] 已对 Ngbo 及其周边地区的碳酸盐含水层进行地球化学评价，以确定生活用水和饮用水的主要离子化学和水质。 [11] 碳酸盐含水层是古巴淡水的主要来源。 [12] 对于来自碳酸盐含水层的 55 个水样，dD 值从 -43‰ 到 -10‰ 变化，d18O 值从 -5 变化。 [13]
Fractured Carbonate Aquifers
Such investigation is carried out for major ions and stable isotopes compositions (δ2H, δ18O, δ13C) at ten sites in the context of fractured carbonate aquifers of the St. [1] These flowing bedding plane discontinuities are separated by a rock matrix which is relatively impermeable (Kwell-test/Kcore-plug~104) as is common in fractured carbonate aquifers. [2]此类调查是针对圣彼得堡裂隙碳酸盐含水层背景下十个地点的主要离子和稳定同位素组成（δ2H、δ18O、δ13C）进行的。 [1] 这些流动的层理平面间断被相对不透水的岩石基质隔开（Kwell-test/Kcore-plug~104），这在裂缝性碳酸盐含水层中很常见。 [2]