Results in Earth Sciences最新文献

Geomorphic signatures of active tectonics in the Poonch basin, Northwestern Himalaya, India 印度喜马拉雅西北部Poonch盆地活动构造的地貌特征

Results in Earth Sciences

Pub Date : 2026-01-19 DOI: 10.1016/j.rines.2026.100154

Ajay Kumar Taloor , Nuzhat Khurshid , Girish Ch Kothyari , Kanika Sharma , Rajesh Kumar

The Poonch Basin, situated in the tectonically active northwestern Himalaya, represents an ideal natural laboratory to evaluate geomorphic responses to ongoing crustal deformation. This study integrates geological mapping, morphometric analysis, and geospatial techniques to assess active tectonics and landscape evolution across nine sub-watersheds of the basin. Stratigraphic succession from Precambrian Salkhala metamorphics to Tertiary Siwalik sediments reflects a long history of thrust propagation and folding, influenced by the Panjal and Murree thrust systems and the Hazara–Kashmir syntaxis. High-resolution digital elevation models (DEMs) were employed to extract drainage networks and compute morphometric indices, including bifurcation ratio, drainage density, hypsometric integral, ruggedness number, and stream-length gradient indices, supplemented by longitudinal profile analysis and lineament mapping. The results reveal strong structural control on drainage organisation, with elongated sub-watersheds, steep slopes, and high relief values. Knick Points, anomalous bifurcation ratios, and asymmetric drainage alignments indicate active uplift and tectonic forcing. Hypsometric curves suggest that most sub-watersheds are in youthful to mature evolutionary stages, while variations in slope–area relationships reflect differential erosion and lithological resistance. Relief indices, including ruggedness number and Melton’s ratio, confirm moderate-to-high erosion potential, particularly in upper catchments. Collectively, the morphometric evidence demonstrates that the Poonch Basin is tectonically active, with neotectonic processes strongly influencing valley morphology, drainage evolution, and sediment dynamics. The study presents the first quantitative framework to interpret regional tectono-geomorphic evolution in this sector of the Himalayas and provides vital information to inform hazard assessment, hydrogeological planning, as well as sustainable management of this geologically fragile sector.

Poonch盆地位于构造活跃的喜马拉雅西北部，是评估地壳形变对地貌响应的理想天然实验室。本研究整合了地质填图、形态计量学分析和地理空间技术，评估了盆地九个子流域的活动构造和景观演变。从前寒武纪萨尔哈拉变质岩到第三纪Siwalik沉积层序反映了受Panjal和Murree冲断体系以及哈扎拉-克什米尔构造的影响，冲断扩展和褶皱的历史。采用高分辨率数字高程模型（dem）提取流域网络，计算形态计量指标，包括分岔率、排水密度、等高积分、坚固度数和河流长度梯度指标，并辅以纵剖面分析和线形制图。结果表明，构造对排水组织有很强的控制作用，具有细长的次分水岭、陡峭的斜坡和高的起伏值。尼克点、异常分岔比和不对称的水系排列表明活跃的隆升和构造强迫作用。坡度曲线表明，大多数子流域处于年轻到成熟的演化阶段，而坡面积关系的变化反映了不同的侵蚀和岩性阻力。地形指数，包括坚固度指数和梅尔顿比，证实了中等至高度的侵蚀潜力，特别是在上游集水区。总体而言，形态计量学证据表明，Poonch盆地是一个构造活跃的盆地，新构造作用强烈地影响了流域形态、流域演化和沉积动力学。该研究提出了第一个定量框架来解释喜马拉雅地区这一地区的区域构造地貌演变，并为灾害评估、水文地质规划以及这一地质脆弱地区的可持续管理提供了重要信息。

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引用次数: 0

Landslide morphology of the Batote area, Jammu & Kashmir, NW Himalaya: Implications for the age of prehistoric debris slides 喜马拉雅西北部查谟和克什米尔巴托特地区的滑坡形态：对史前碎片滑坡时代的影响

Results in Earth Sciences

Pub Date : 2026-01-07 DOI: 10.1016/j.rines.2026.100153

Abdul Qayoom Paul , Pankaj Kumar , Irfan Maqbool Bhat , Waseem Qader , Ajay Kumar

Identification of morphological elements is pre-requisite to understand the landslide behavior and composition. The relative age determination of the identified prehistoric debris slides depends on the subtle preservation intensity of surficial geomorphological features, topographic elements, and drainage evolution. The land use land cover along the western slope of Chakwa and Mogu Nalas show predominance of cultivation and forest area over a thick overburden material. The field-based mapping of intrinsic factors revealed the presence of prehistoric debris slide features such as thick debris material, water escape structures in debris material, large slabs (4–6 m) of bedded shale-mud sequence of Murree Formation, subtle rolling topography, slope-top benches, smoothened steep crest slopes with elliptical to amphitheater shape, and reversal of contours. Such features were used to determine the relative age of six identified prehistoric debris slides along the western slope of Chakwa and Mogu Nalas. Three prehistoric debris slides along the Mogu Nala are much smaller but have preserved comparably better morphological features and, therefore, are younger. In contrast, the prehistoric debris slides along the Chakwa Nala show tell-tale signs of steep smoothened scrap, dense vegetation, and rolling topography with streams flowing off the main slide body. The smoother nature of these features along with drainage deflection and dense vegetation indicates prehistoric debris slides activity along the western slope of Chakwa Nala to be very old of Early Holocene in age or older about 5000–10000 years.

形态元素的识别是了解滑坡行为和组成的先决条件。确定史前岩屑滑坡的相对年龄取决于地表地貌特征、地形要素和排水演化的微妙保存强度。察克瓦和莫古那拉斯西坡的土地利用和土地覆被表现为耕地和林地占主导地位，覆盖层较厚。基于野外的内在因素作图揭示了史前碎屑滑动特征的存在，如厚的碎屑物质、碎屑物质中的泄水构造、Murree组层状页岩-泥层序的大板块（4-6 m）、微妙的起伏地形、坡顶台地、平滑的椭圆形至圆形的陡峭峰顶斜坡以及等高线的反转。这些特征被用来确定沿Chakwa和Mogu Nalas西坡的六个已确定的史前碎片滑坡的相对年龄。沿着Mogu Nala的三个史前碎片滑坡要小得多，但保存了相对较好的形态特征，因此更年轻。相比之下，沿着Chakwa Nala的史前碎片滑坡显示出陡峭光滑的碎片，茂密的植被和起伏的地形，溪流从主要的滑坡体流出。这些特征的平滑性质以及排水偏转和茂密的植被表明，Chakwa Nala西坡的史前碎屑滑动活动在全新世早期非常古老，甚至更古老，约为5000-10000年。

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引用次数: 0

Mapping subsurface lineaments beneath the Ethiopian plateaus and the adjoining Ethiopian rifts using gravity data: Implications for tectonic evolution of the underlying crust 利用重力数据绘制埃塞俄比亚高原和邻近埃塞俄比亚裂谷的地下轮廓：对下地壳构造演化的影响

Results in Earth Sciences

Pub Date : 2026-01-05 DOI: 10.1016/j.rines.2026.100152

Zellelew Kassaye Bewketu , Abera Alemu , Kevin Mickus , Zelalem Demissie , Nikos Papadopoulos

The aim of this study is to map subsurface lineaments beneath the Ethiopian plateaus and the rifts (the Afar Depression, the main Ethiopian rift, and the southern Ethiopian rift) using aero gravity data. Linear structures of the earth known as geological lineaments, may serve as indicators of key tectonic units in the crust that are linked to mineral deposits, active faults, groundwater controls, earthquakes, and geomorphology. Lineament distributions are directly related to mineralization in regions where ore fluid migration forms mineral deposits and may be used to find new locations for exploration. A series of subsurface lineament maps at different depth slices were created from upward-continued Bouguer gravity grids. The derived subsurface lineaments were generally oriented in a northwesterly direction in contrast to the dominant northeasterly orientations of the surface lineaments mapped by previous studies. Through the use of upward continuation and the depth slices of a residual Bouguer gravity anomaly map, the depths to subsurface lineaments were calculated which ranged between 0 – 50 km. The number and density of the lineaments decrease with depth while their lengths show inconsistent behavior with depth. The study further demonstrated the eastward younging of the Arabian Nubian Shield in Ethiopia based on the depth-dependent westward shifting of significant subsurface lineaments discovered beneath the plateau in the northwest Ethiopia.

本研究的目的是利用航空重力数据绘制埃塞俄比亚高原和裂谷（阿法尔凹陷，埃塞俄比亚主裂谷和埃塞俄比亚南部裂谷）下的地下轮廓。地球的线状结构被称为地质地貌，可以作为地壳中与矿床、活动断层、地下水控制、地震和地貌有关的关键构造单元的指示物。在流体运移形成矿床的地区，界线分布与矿化直接相关，可用于寻找新的勘探地点。利用向上连续的布格重力网格，绘制了一系列不同深度切片的地下线形图。推导出的次表层线形与以往绘制的地表线形以东北方向为主相反，总体上呈西北方向。利用残差布格重力异常图的向上延拓和深度切片，计算出0 ~ 50 km的次表层线深度。随着深度的增加，线材的数量和密度逐渐减少，而线材的长度则不一致。根据在埃塞俄比亚西北部高原下发现的重要地下构造的深度依赖西移，进一步论证了埃塞俄比亚阿拉伯努比亚地盾的向东年轻化。

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引用次数: 0

Integrated geophysical data for 2D/3D gold target delineation in the Bidou area, Nyong Group, Cameroon 喀麦隆Nyong Group Bidou地区二维/三维金矿目标圈定综合地球物理数据

Results in Earth Sciences

Pub Date : 2025-12-27 DOI: 10.1016/j.rines.2025.100151

Kouankap Nono Gus Djibril , Ndam Njikam Mohamed Moustapha , Kamguia Woguia Brice , Alessandra Ribodetti , Robillard Claude

The Bidou area is located within the polymetallic province of the Nyong Group (southwestern Cameroon), which is structurally controlled by N–S to NNE–SSW-trending regional structures. This study aims to delineate the 2D/3D geometry of potential primary gold mineralization targets by integrating magnetic, radiometric, and electrical (IP/resistivity) geophysical data. Interpretation of the vertical derivative and analytical signal of the reduced-to-pole magnetic field highlights a well-defined N–S to NNE–SSW magnetic anomaly corridor interpreted as a potential primary gold-bearing structure. Radiometric analysis of the K/Th ratio map reveals a thorium anomaly spatially coincident with this magnetic corridor, suggesting thorium mobilization related to hydrothermal processes. Inverted IP/resistivity sections identify very high and high chargeability domains spatially associated with low to very low resistivity zones, interpreted as altered structures, clay-rich zones, and sulfide-bearing metamorphic units potentially associated with gold mineralization. Three-dimensional correlation of the chargeability sections enabled the construction of a 3D model of the very high chargeability (VHC: 50–590 mV/V) and high chargeability (HC: 20–50 mV/V) domains, with estimated volumes of approximately 2.25 × 10⁹ m³ and 1.85 × 10 ¹ ⁰ m³ , respectively. The individual VHC model further confirms the persistence of the N–S to NNE–SSW anomaly corridor at depth. These results demonstrate the effectiveness of an integrated geophysical approach for first-order gold exploration targeting in structurally complex Precambrian terrains.

Bidou地区位于喀麦隆西南部Nyong群多金属省，受N-S ~ nne - ssw向区域构造控制。本研究旨在通过综合磁、辐射和电（IP/电阻率）地球物理数据，描绘潜在原生金矿化目标的二维/三维几何形状。对降极磁场的垂向导数和解析信号的解释，突出了一个明确的N-S至NNE-SSW磁异常走廊，被解释为潜在的原生含金构造。K/Th比值图的辐射分析显示，钍在空间上与该磁走廊一致，表明钍的运移与热液作用有关。逆激电/电阻率剖面确定了与低至极低电阻率带相关的极高和高电荷率域，这些区域被解释为蚀变构造、富粘土带和可能与金矿化相关的含硫化物变质单元。荷电率的三维相关部分启用的3 d模型建设的荷电率很高(VHC: 50 - 590 mV / V)和高极化率(HC): 20 - 50 mV / V)领域,估计量的大约2.25 ×10 ⁹m³  和1.85×10  ¹ ⁰m³ ,分别。个别VHC模式进一步证实了深度上N-S到NNE-SSW异常走廊的持续性。这些结果证明了综合地球物理方法在构造复杂的前寒武纪地区一级金矿找矿中的有效性。

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引用次数: 0

Gravity and field data interpretation of a probabilistic buried impact crater in Mboutou and Environs, North Cameroon 喀麦隆北部Mboutou和Environs地区一个概率埋藏陨石坑的重力和野外数据解释

Results in Earth Sciences

Pub Date : 2025-12-26 DOI: 10.1016/j.rines.2025.100150

Jean Paul Sep Nlomngan , Augustin Patrice Moussango Ibohn , Quentin Marc Anaba Fotze , Aboubakar Abdoul , Immaculate Neh Fru

The identification and characterization of terrestrial astroblemes in areas mostly affected by soil erosion, are very difficult. Some reliefs resulting from those impact craters have lost their original shape or have been buried over geologic time. Hence, this study was based on the integration of both gravity and geological studies for the investigation of a potential impact crater in Mboutou and Environs. First and foremost, the Power Spectrum Density curve was used for the extraction of the optimum residual anomalies whose depth to the top was estimated at 3 km. The high-resolution edge detection maps depicted a concentric a ring-shaped structure of diameter higher than 25 km. The 2D gravity modeling and geological observations, characterizing the deep and shallow structure of the probable astrobleme respectively, suggest a possible buried complex impact crater of thickness estimated at 2.5 km.

在受土壤侵蚀影响较大的地区，陆地星斑的识别和表征是非常困难的。这些陨石坑造成的一些浮雕已经失去了原来的形状，或者在地质时期被掩埋了。因此，这项研究是在综合重力和地质研究的基础上进行的，目的是调查Mboutou和Environs地区潜在的撞击坑。首先，利用功率谱密度曲线提取最优残余异常，估计到顶深度为3 km。高分辨率边缘检测图描绘了一个直径大于25 公里的同心环形结构。二维重力模型和地质观测分别表征了可能的星坑的深层和浅层结构，表明可能存在一个埋在地下的复杂陨石坑，厚度估计为2.5 km。

引用次数: 0

Quantification of fracture porosity and reservoir heterogeneity in carbonates: An integrated core-log zoning workflow, Southwest Iran 伊朗西南部碳酸盐岩裂缝孔隙度和储层非均质性的量化：一个综合岩心-测井分区工作流程

Results in Earth Sciences

Pub Date : 2025-12-17 DOI: 10.1016/j.rines.2025.100149

Zahra Safarpour Kapoorchali , Ezatallah Kazemzadeh , Mehran Arian , Pooria Kianoush

Porosity estimation is a critical challenge in carbonate reservoir characterization due to complex pore systems and heterogeneity. This study compares core-derived and log-calculated porosity measurements in a carbonate reservoir in Southwest Iran at depths of 3250–3750 m, addressing industry challenges of data reliability and cost efficiency. While core analysis yields direct porosity measurements, its high cost and limited spatial coverage necessitate reliable log-based alternatives. The research utilized neutron, density, and acoustic logs to calculate porosity through established petrophysical relationships, comparing results with core data from 648 samples. Two innovative zoning approaches were developed: depth- and lithology-based zoning identified five distinct reservoir intervals, while porosity-based zoning classified the reservoir into three quality classes. Results show strong agreement between methods; log-derived mean porosity of 15 % closely matches the core measurement average of 12 %. Neutron-density logs effectively capture total porosity, while acoustic logs indicate primary porosity, enabling secondary porosity quantification. A key achievement is the implementation of Geolog software's deterministic and probabilistic methods to minimize interpretation subjectivity, reducing reliance on extensive coring while maintaining accuracy. The depth-based zoning approach identified high-quality reservoir intervals between 3450 and 3550 m with porosity exceeding 20 %. This work advances previous studies by offering: (1) a validated protocol for log-core integration in heterogeneous carbonates, (2) quantitative assessment of secondary porosity, and (3) practical zoning methodologies for reservoir quality prediction. Future research should focus on machine learning (ML) applications to enhance porosity prediction models and integrate advanced logging tools for improved fracture porosity characterization.

由于复杂的孔隙系统和非均质性，孔隙度估算是碳酸盐岩储层表征的一个关键挑战。该研究比较了伊朗西南部3250-3750 米深度的碳酸盐岩储层的岩心衍生和测井计算孔隙度测量结果，解决了数据可靠性和成本效益方面的行业挑战。虽然岩心分析可以直接测量孔隙度，但其高成本和有限的空间覆盖范围需要可靠的基于测井的替代方法。研究利用中子、密度和声波测井，通过建立岩石物理关系来计算孔隙度，并将结果与648个样品的岩心数据进行比较。开发了两种创新的分区方法：基于深度和岩性的分区确定了五个不同的储层层段，而基于孔隙度的分区将储层划分为三个质量等级。结果表明，两种方法之间具有很强的一致性；测井计算的平均孔隙度为15 %，与岩心测量的平均值12 %非常接近。中子密度测井可以有效捕获总孔隙度，而声波测井则可以显示主要孔隙度，从而实现二次孔隙度的量化。一个关键的成就是实现了地质软件的确定性和概率方法，以最大限度地减少解释的主观性，减少对广泛取心的依赖，同时保持准确性。基于深度的分区方法确定了3450 ~ 3550 m的优质储层，孔隙度超过20% %。这项工作通过提供：(1)非均质碳酸盐岩测井岩心整合的验证协议，(2)次生孔隙度的定量评估，以及(3)储层质量预测的实用分区方法，进一步推进了以往的研究。未来的研究应集中在机器学习（ML）应用上，以增强孔隙度预测模型，并集成先进的测井工具，以改善裂缝孔隙度表征。

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引用次数: 0

The influence of geomagnetic storms on global main shock earthquake occurrence: A study of solar wind parameters and seismic activity 地磁风暴对全球主震地震发生的影响：太阳风参数和地震活动的研究

Results in Earth Sciences

Pub Date : 2025-12-05 DOI: 10.1016/j.rines.2025.100148

S. Prasanna Subramanian, A. Mujiber Rahman

This study investigates the relationship between geomagnetic activity and earthquake occurrences, focusing on 17 earthquake main shock events influenced by geomagnetic storms. The analysis reveals complex patterns in earthquake behaviour that are shaped by a combination of factors, including tectonic activity, regional geological conditions, and geomagnetic disturbances. The findings indicate that while larger earthquakes tend to be associated with regions of moderate tectonic activity, the frequency and magnitude of earthquakes are not solely determined by the Tectonic Index. Additionally, variations in time delays between earthquake events suggest that regions with shorter delays experience more frequent seismic activity, whereas areas with longer delays may witness less frequent but larger events. The study gives a potential earthquake magnitude equations related to solar wind pressure and Electric field parameters.

本文研究了地磁活动与地震发生的关系，重点研究了受地磁风暴影响的17次地震主震事件。分析揭示了地震行为的复杂模式，这些模式是由多种因素共同形成的，包括构造活动、区域地质条件和地磁干扰。研究结果表明，虽然大地震往往与中等构造活动区域有关，但地震的频率和震级并不完全由构造指数决定。此外，地震事件之间时间延迟的变化表明，延迟较短的地区经历更频繁的地震活动，而延迟较长的地区可能见证较少但较大的地震活动。给出了潜在地震震级与太阳风压力和电场参数的关系方程。

引用次数: 0

Exploring novel super-learner-based machine learning ensembles for landslide susceptibility prediction with integrated uncertainty quantification 探索新的基于超级学习者的机器学习集成不确定性量化滑坡易感性预测

Results in Earth Sciences

Pub Date : 2025-12-01 DOI: 10.1016/j.rines.2025.100146

Sumon Dey , Swarup Das

Western Ghats, one of the mystic and oldest mountain ranges in Southern India, historically experienced considerable number of landslides. The present study was objectified to quantify the susceptibility of landslides for Idukki district in Kerala (India), a prominent part of the Western Ghats. Fifteen geo-environmental features were taken up for the research after extensive literature survey and feature-selection technique. 1781 historical landslide locations were found through heterogeneous sources. Four advanced machine learning techniques, namely, Flexible Discriminant Analysis (FDA), Monotone Multi-Layer Perceptron (MONMLP), Model-Averaged Neural Network (MANN), Boosted Decision Tree (BDT) were selected as base-learners with the Gradient Boosting Machines as the Super-learner. The constructed models were found to perform extraordinarily with astounding AUCROC score of 0.975, 0.970, 0.965 and 0.959 with the training data, and 0.946, 0.944, 0.941 and 0.936 with the testing data for GBM-MONMLP, GBM-BDT, GBM-FDA and GBM-MANN model respectively. Taylor’s diagram was used for visual interpretation of the model performance. The models were also validated with Quality Sum (Q’s) index. The maximum Q’s index value of 3.06 was found for GBM-MONMLP followed by 2.94 (GBM-BDT), 2.71 (GBM-MANN) and 2.63 (GBM-FDA). Model calibration score substantiated excellent performance of the models. For enhanced scientific trustworthiness, uncertainty quantification was performed through coefficient-of-variation (COV) and a confidence map for each one of the susceptibility maps was constructed through matrix-intersection method. The findings of the research with fused certainty may be helpful for decision-makers of the region for doing the needful to prioritize safeguarding of human livelihood and reduce the economic depletion.

西高止山脉是印度南部神秘和最古老的山脉之一，历史上经历了相当多的山体滑坡。本研究的目的是量化喀拉拉邦（印度）伊杜基地区（西高止山脉的一个突出部分）山体滑坡的易感性。通过广泛的文献调查和特征选择技术，选取了15个地质环境特征进行研究。通过非均质资料发现了1781个历史滑坡位置。选择灵活判别分析（FDA）、单调多层感知器（MONMLP）、模型平均神经网络（MANN）、增强决策树（BDT）四种先进的机器学习技术作为基础学习器，梯度增强机作为超级学习器。结果表明，所构建的模型在训练数据上的AUCROC得分分别为0.975、0.970、0.965和0.959，在检验数据上的AUCROC得分分别为0.946、0.944、0.941和0.936。泰勒图用于模型性能的视觉解释。并用质量总和（Quality Sum， Q’s）指标对模型进行了验证。GBM-MONMLP的Q指数最大值为3.06，其次是GBM-BDT、GBM-MANN和GBM-FDA，分别为2.94、2.71和2.63。模型标定分数证实了模型的优异性能。为了提高科学可信度，通过变异系数（COV）进行不确定性量化，并通过矩阵相交法构建每个敏感性图的置信度图。该研究结果具有一定的融合确定性，可为区域决策者优先保障人类生计和减少经济枯竭提供参考。

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引用次数: 0

Mapping groundwater productivity in crystalline basement using VES and SRTM data: A case study of Fokoué, Cameroon 利用VES和SRTM数据绘制结晶基底地下水生产力：以喀麦隆fokou<e:1>为例

Results in Earth Sciences

Pub Date : 2025-12-01 DOI: 10.1016/j.rines.2025.100144

Jean Victor Kenfack , Eric Donald Teikeu Ngueveu , Théophile Njanko , Thiery Blondel Suffeu Talla , Stéphane Tchomtchoua Tagne , Rodrigue Talla Toteu , Vanelle Adèle Chemgne Djikeu

This study focuses on the hydrogeological characterization and groundwater productivity mapping in the crystalline basement terrain of the peri-urban area of Fokoué, West Cameroon. The methodology combines satellite imagery (SRTM), with vertical electrical soundings (VES), using the Schlumberger configuration at AB/2 = 140 m, totaling 92 VES points. Lineament analysis reveals predominant NE-SW structural trends (N10°–30°, and NW315°), which correspond to major tectonic fractures influencing groundwater infiltration and storage. Resistivity values range from < 1000 Ωm (indicative of saturated clays and altered materials), to > 5000 Ωm (massive fresh bedrock). Furthermore, the electrical resistivities observed are characteristic of fractured zones, which are considered to be groundwater flow corridors. The aquifer systems are mostly semi-confined, with depths ranging from 5 to 25 m, and thicknesses from 3 to 18 m. Alongside the geoelectrical data, hydrodynamic parameters such as conductivity (K, m/day), transmissivity (Tr, m²/day), and longitudinal conductance (S, Ω⁻¹) were calculated. to access the ground water potential of aquifers. The calculated transmissivity, porosity, and hydraulic conductivity values were used to estimate the groundwater yield, revealing that over 70 % of the study area presents favorable conditions for groundwater exploitation, with an average estimated discharge of 2.41 m³ /h. This integrated approach highlights the critical role of structural control on aquifer productivity in hard rock terrains. The productivity models obtained are valuable tools for the rational use of water resources on the one hand, and on other hand, they are excellent discriminants for selecting areas favorable to the installation of water wells in Fokoué.

本研究的重点是在喀麦隆西部fokou城郊地区结晶基底地形的水文地质特征和地下水生产力测绘。该方法结合了卫星图像（SRTM）和垂直电测深（VES），使用了斯伦贝谢在AB/2 = 140 m处的配置，共有92个VES点。剖面分析显示，北东向—西南向（N10°—30°，NW315°）为主，对应着影响地下水入渗和储存的主要构造裂缝。电阻率值范围从<； 1000 Ωm（指示饱和粘土和蚀变物质）到>； 5000 Ωm（大块新鲜基岩）。此外，观察到的电阻率具有裂缝带的特征，这些裂缝带被认为是地下水流动通道。含水层系统大多为半封闭的，深度为5 ~ 25 m，厚度为3 ~ 18 m。除了地电数据外，还计算了水动力学参数，如电导率（K， m/天），透射率（Tr， m²/天）和纵向电导率（S， Ω⁻¹）。获取地下含水层的地下水潜力。利用计算得到的透水率、孔隙度和导水率估算地下水产量，发现研究区70% %以上的区域具有开发地下水的有利条件，平均估算流量为2.41 m³ /h。这种综合方法强调了硬岩地形中构造控制对含水层生产力的关键作用。所得的生产力模型一方面为合理利用水资源提供了有价值的工具，另一方面也为福库河流域选择适宜打水井的地区提供了很好的判别依据。

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引用次数: 0

Tectonics of the zagros orogen: An introduction 扎格罗斯造山带构造：概论

Results in Earth Sciences

Pub Date : 2025-12-01 DOI: 10.1016/j.rines.2025.100062

Soumyajit Mukherjee, Raana Razavi Pash, Şule Gürboğa

引用次数: 0