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Simulation of Underground Freshwater Exploitation and Analysis of Environmental Impact in Hangzhou Bay New Area, China Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-15 Zhiqiang Zhou, Chaolin Wang, Jing Bi, Yu Zhao, Wei Xiang
The Hangzhou Bay New Area is located in a coastal plain area where the groundwater storage environment is relatively fragile and lacks water resources. Recognizing the regularity of groundwater circulation in this area and conducting an analysis of the evolution of groundwater quality can provide support for its potential as an emergency groundwater source. In order to assess the impact of emergency
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Development and Application of a Variable-Frequency-Based Electric Sounding System for Increasing the Accuracy of Aquifer Detection Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-13 Hisafumi Asaue, Katsuaki Koike, Tohru Yoshinaga, Tada-nori Goto, Hiroaki Yoshida
The demand for groundwater resources has increased owing to global developments of urbanization, industry, and agriculture. There is thus a need for advanced geophysical techniques that can be used for accurate surveying of groundwater resources. Although electric sounding has been a standard technique in surveying, it is still difficult to specify the groundwater table and aquifer distribution accurately
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Implementation of Rock Typing on Waterflooding Process During Secondary Recovery in Oil Reservoirs: A Case Study, El Morgan Oil Field, Gulf of Suez, Egypt Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-11 Ahmed E. Radwan, Bassem S. Nabawy, Ahmed A. Kassem, Walid S. Hussein
Waterflooding is one of the most common secondary recovery methods in the oil and gas industry. Globally, this process sometimes suffers a technical failure and inefficiency. Therefore, a better understanding of geology, reservoir characteristics, rock typing and discrimination, hydraulic flow units, and production data is essential to analyze reasons and mechanisms of water injection failure in the
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Application of Gaussian Mixture Model and Geostatistical Co-simulation for Resource Modeling of Geometallurgical Variables Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-09 Yerkezhan Madenova, Nasser Madani
This work addresses the practice of resource calculation for geometallurgical variables. Similar to mineral resource modeling, estimation domains for geometallurgical variables should be identified first. Then, the geometallurgical variables that are deemed homogeneous need to be modeled separately in each domain. A difficulty for this is related to the geometallurgical variables that can rarely be
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Prediction of Spatial Distribution of Coal Seam Permeability Based on Key Interpolation Points: A Case Study from the Southern Shizhuang Area of the Qinshui Basin Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-09 Xiaoming Ni, Cixiang Yang, Yanbin Wang, Zhongcheng Li
Accurate prediction of the spatial distribution of permeability of coal reservoirs using scare data from wells for coalbed methane exploration and development can lay a foundation for evaluating its gas production potential. By taking the #3 coal seam in the southern Shizhuang area in Qinshui Basin (Shanxi Province, China) as a research area, 23 key interpolation points that control the permeability
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Combining Group Method of Data Handling with Signal Processing Approaches to Improve Accuracy of Groundwater Level Modeling Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-08 Vahid Moosavi, Javad Mahjoobi, Mehdi Hayatzadeh
Groundwater level forecasting is a paramount necessity for integrated management of a basin. Development of suitable models is an essential step in determining groundwater level fluctuations in the future. The main objective of this study was to provide a powerful hybrid model by combining the group method of data handling (GMDH) and certain signal processing techniques, i.e., ensemble empirical mode
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Static Reservoir Modeling of the Eocene Clastic Reservoirs in the Q-Field, Niger Delta, Nigeria Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-08 Austin E. Okoli, Okechukwu E. Agbasi, Aref A. Lashin, Souvik Sen
This work integrates seismic and well log data to establish a 3D reservoir model of the Q-Field, which is a prolific onshore hydrocarbon field situated in the Central Swamp Depobelt of Nigeria. The subsurface modeling focuses on the four principal clastic reservoir intervals of the Agbada Formation (D6200, D7000, D9000 and E2000), which was deposited in a deltaic to fluvio-deltaic system during Eocene
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A Combination of Fuzzy Delphi Method and ANN-based Models to Investigate Factors of Flyrock Induced by Mine Blasting Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Diyuan Li, Mohammadreza Koopialipoor, Danial Jahed Armaghani
The identification of parameters that affect mining is one of the requirements in executive work in this field. Due to the dangers of flyrock, studying the role of the factors that affect it will be useful to control this serious environmental issue of blasting. In this research, using hybrid intelligence techniques, a new guide to investigate the parameters that affect the occurrence and characteristics
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GIS-based Mineral Prospectivity Mapping of Seafloor Massive Sulfide on Ultraslow-spreading Ridges: A Case Study of Southwest Indian Ridge 48.7° – 50.5° E Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Lushi Liu, Jilong Lu, Chunhui Tao, Shili Liao, Shengbo Chen
With the depletion of mineral resources on land, seafloor massive sulfide deposits have the potential to become as important for exploration, development and mining as those on land. However, it is difficult to investigate the ocean environment where seafloor massive sulfide deposits are located. Thus, improving prospecting efficiency by reducing the exploration search space through mineral prospectivity
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Assessment of Rockburst Risk in Deep Mining: An Improved Comprehensive Index Method Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Qiming Zhang, Enyuan Wang, Xiaojun Feng, Chao Wang, Liming Qiu, Hao Wang
With the increasing depth of underground engineering, the risk of coal–rock dynamic disasters such as rockburst is becoming more and more serious and complex, which seriously threatens the safety of coal resource, mine production and the surface ecological environment. However, the existing risk indices and methods used for evaluating rockburst risk cannot be fully applied to deep goal seam group (DCG)
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Unsupervised Machine Learning for Lithological Mapping Using Geochemical Data in Covered Areas of Jining, China Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Guopeng Wu, Guoxiong Chen, Qiuming Cheng, Zhenjie Zhang, Jie Yang
Application of (supervised and unsupervised) machine learning algorithms to big geoscience data can facilitate intelligent lithological mapping and interpretation in a data-driven fashion. Among them, unsupervised machine learning could play more important role in lithological classification because lithological labels are often missed in covered places. In this study, principal component analysis
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Evaluation of Spatio-temporal Changes in Surface Water Quality and Their Suitability for Designated Uses, Mettur Reservoir, India Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Ajoy Saha, V. L. Ramya, P. K. Jesna, S. Sibina Mol, Preetha Panikkar, M. E. Vijaykumar, U. K. Sarkar, B. K. Das
Freshwater has a significant role in determining the ecological environment, public health and socio-economic development. This study analyzed the spatio-temporal variation in surface water quality of the tropical reservoir Mettur, India, to determine whether its water is suitable for human consumption and aquatic ecosystem. Thus, 21 water quality parameters were monitored seasonally (pre-monsoon,
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Spatio-Geologically Informed Fuzzy Classification: An Innovative Method for Recognition of Mineralization-Related Patterns by Integration of Elemental, 3D Spatial, and Geological Information Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Saeid Esmaeiloghli, Seyed Hassan Tabatabaei, Emmanuel John M. Carranza
Recognition and mapping of mineralization-related patterns in geochemical data is a key computational analysis to achieve a predictive model of prospectivity for mineral deposit occurrence. This contribution describes a spatio-geologically informed fuzzy classification (SGIFC) for portraying the spatial-frequency distribution of mineralization through integration of geochemical concentrations, 3D spatial
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Experimental Study on Physical and Mechanical Properties of Gypsum Rock During High-Temperature Dehydration–Hydration Expansion Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-05 Sijiang Wei, Yushun Yang, Chongbang Xu, Meng Wang, Wenlong Shen, Chengdong Su
In order to study the physical and mechanical properties of gypsum rock samples in three states (natural, high-temperature dehydration and hydration time), natural gypsum rock was put into high-temperature condition of 220°C for dehydration treatment, and then the high-temperature dehydrated gypsum rock was treated with different hydration time, and the gypsum rock samples in three states were subjected
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Integration of Cluster Analysis and Rock Physics for the Identification of Potential Hydrocarbon Reservoir Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-04 Amjad Ali, Chen Sheng-Chang, Munawar Shah
Rock physics has proven its credibility for the quantitative seismic interpretation of reservoir and reservoir characterization. In this study, we implemented K-means clustering to group data points more objectively and without prior misconceptions into clusters. Furthermore, we used the grouping suggested by the algorithm for our study. We integrated rock physics and K-means cluster analysis to determine
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Strength of Stacking Technique of Ensemble Learning in Rockburst Prediction with Imbalanced Data: Comparison of Eight Single and Ensemble Models Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-03 Xin Yin, Quansheng Liu, Yucong Pan, Xing Huang, Jian Wu, Xinyu Wang
Rockburst is a common dynamic geological hazard, severely restricting the development and utilization of underground space and resources. As the depth of excavation and mining increases, rockburst tends to occur frequently. Hence, it is necessary to carry out a study on rockburst prediction. Due to the nonlinear relationship between rockburst and its influencing factors, artificial intelligence was
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Correlation of Phase Composition, Structure, and Mechanical Properties of Natural Basalt Continuous Fibers Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-03 S. I. Gutnikov, S. S. Popov, V. A. Efremov, Peng-Cheng Ma, B. I. Lazoryak
Abstract This paper presents a study of the influence of basalt rocks’ phase composition, acidity modulus, and structural parameter NBO/T on the tensile strength and elastic modulus of basalt continuous fibers (BCFs) derived from them. A series of BCF samples based on 14 different basalt deposits was obtained under equal conditions. The tensile strength and elastic modulus of the BCFs from different
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A Review of Exploration, Development, and Production Cost Offshore Newfoundland Nat. Resour. Res. (IF 3.708) Pub Date : 2021-01-03 Mark J. Kaiser
Operators have spent $84 billion Canadian dollars in exploration, development, and production offshore Newfoundland, Canada, between 1966 and 2019, and have produced about 2 billion barrels of an estimated 3.3 billion barrels recoverable oil. Four major projects have been developed—Hibernia, Terra Nova, White Rose/North Amethyst, and Hebron—using two development concepts, gravity-base structures and
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Numerical Investigation of 3D Distribution of Mining-Induced Fractures in Response to Longwall Mining Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-14 Junchao Chen, Lei Zhou, Binwei Xia, Xiaopeng Su, Zhonghui Shen
Extraction of coal mine methane is widely used in complex geological conditions. It does not only effectively prevent potential gas disasters, but it also alleviates energy crisis of the world. However, the high-efficiency extraction of coal mine methane is positively correlated with accurate positioning of mining-induced fracture-rich areas (relatively intensive fracture areas), which is yet to be
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Evaluation of Rockburst Hazard in Deep Coalmines with Large Protective Island Coal Pillars Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-14 Dong Li, Junfei Zhang, Yuantian Sun, Guichen Li
As the cover depth of coalmines in China increases, large protective coal pillars are widely used to support the overlying strata during mining. After the longwall panels on both sides of the protective pillar are mined, the protective pillar becomes an island pillar. The high static and dynamic stress accumulated in a protective island pillar may cause overall rockburst hazards in the gateway between
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Prediction of Blast-Induced Ground Vibration in a Mine Using Relevance Vector Regression Optimized by Metaheuristic Algorithms Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-13 Hadi Fattahi, Mahdi Hasanipanah
Prediction of ground vibration induced by blasting operations is a crucial challenge to engineers working in surface mines. This study aims to assess the efficiency of two advanced machine learning models in predicting ground vibrations in a granite quarry located in Malaysia. To this end, two intelligent models were proposed by hybridizing the relevance vector regression (RVR) with the grey wolf optimization
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Forecasting of One-Day-Ahead Global Horizontal Irradiation Using Block-Oriented Models Combined with a Swarm Intelligence Approach Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-12 Sahbi Boubaker, Souad Kamel, Lioua Kolsi, Omar Kahouli
Solar photovoltaic (PV) energy is becoming used gradually as an alternative source to classical fossil fuel because of being renewable, clean and abundant. In agricultural regions such as Hail, Saudi Arabia, farmers can invest in using PV sources for pumping water from relatively deep wells. In such case, forecasting the potential of PV energy is among the primary factors that may affect the design
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Spatial Differentiation Characteristics of Groundwater Stress Index and its Relation to Land Use and Subsidence in the Varamin Plain, Iran Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-10 Maryam Nayyeri, Seyed Abbas Hosseini, Saman Javadi, Ahmad Sharafati
Distributed modeling provides for mapping of spatial and temporal patterns of highly stressed regions, and it offers local solutions to reduce stress in aquifers. In this study, the groundwater stress index (GWSI) is evaluated based on the groundwater footprint index over the Varamin aquifer in Iran. Using ArcGIS software, all necessary layers were produced and then input into the Groundwater Modeling
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Experimental Investigation of Mechanical Properties and Failure Behavior of Fluid-Saturated Hot Dry Rocks Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-09 Daobing Wang, Xiaobing Bian, Hao Qin, Dongliang Sun, Bo Yu
Thousands of cubic meters of fluid are continuously injected for a long term to create complex fracture patterns in hydraulic fracturing of hot dry rocks. However, the physics and mechanics behind the interaction of fluid–rock are not fully understood at present. To reveal the related damage mechanisms of saturated rock samples such as damage initiation and evolution at various alternative stress levels
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A Wavelet-Based Model for Determining Asphaltene Onset Pressure Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-06 Mohammad Heidary, Kazem Fouladi Hossein Abad
Asphaltene onset pressure (AOP) is a significant parameter for determining the flow assurance of live oils. The solid detection system (SDS) is one of the prevalent techniques used by service laboratories to evaluate the stability of asphaltenes under reservoir conditions. The determination of AOP based on this technique entails the interpretation of recorded data, making the accuracy of the result
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Integration of Thermal Infrared and Synthetic Aperture Radar Images to Identify Geothermal Steam Spots Under Thick Vegetation Cover Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-02 Asep Saepuloh, Rezky Heidi Saputro, Mohamad Nur Heriawan, Dwiyogarani Malik
Identifying physical properties of geothermal features such as surface temperature and roughness is crucial for geothermal assessment, hydrology, and environmental studies. Surface temperature and roughness-related rock properties strongly influence the thermal infrared and back-scattering intensities, respectively, of synthetic aperture radar (SAR) images. This study aimed to identify geothermal steam
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Modeling the Depositional Environment of the Sandstone Reservoir in the Middle Miocene Sidri Member, Badri Field, Gulf of Suez Basin, Egypt: Integration of Gamma-Ray Log Patterns and Petrographic Characteristics of Lithology Nat. Resour. Res. (IF 3.708) Pub Date : 2020-10-01 Ahmed E. Radwan
Understanding the depositional setting of siliciclastics reservoir is fundamental process to exploration and development of hydrocarbon reservoirs and to the multi-phase cycle of the oil and gas industry. Typically, core samples from existing or potential reservoirs can be used for interpretation of depositional environment. However, the lack of core samples in certain reservoirs represents a challenge
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New Mechanical Model of Slotting–Directional Hydraulic Fracturing and Experimental Study for Coalbed Methane Development Nat. Resour. Res. (IF 3.708) Pub Date : 2020-09-03 Jianyu Zhong, Zhaolong Ge, Yiyu Lu, Zhe Zhou, Jingwei Zheng
When hydraulic fractures do not expand in the direction required by a project, it is difficult to enhance coal seam permeability effectively. Slotting–directional hydraulic fracturing (SDHF) has been proposed as a possible alternative, but there is not enough theoretical mechanism to guide the construction. Based on preliminary study of the directional mechanism of single slotted hole, we established
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Stress Path Analysis for Characterization of In Situ Stress State and Effect of Reservoir Depletion on Present-Day Stress Magnitudes: Reservoir Geomechanical Modeling in the Gulf of Suez Rift Basin, Egypt Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-20 Ahmed Radwan, Souvik Sen
A reservoir geomechanical modeling has been attempted in the hydrocarbon-bearing Miocene formations in the offshore Badri field, Gulf of Suez, Egypt. Pore pressure established from the direct downhole measurements indicated sub-hydrostatic condition in the depleted mid-Miocene Hammam Faraun and Kareem reservoirs. Vertical stress (Sv) estimated using bulk density data yielded an average of 0.98 PSI/feet
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Experimental Investigation of Thermal Effect on Fracability Index of Geothermal Reservoirs Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-19 Daobing Wang, Fujian Zhou, Yongcun Dong, Dongliang Sun, Bo Yu
The thermal effect is not considered in the current fracability index model. In this paper, we investigated experimentally the formation capacity of fracture networks in hot dry rocks at different temperatures, by using rock mechanics triaxial testing system and acoustic emission monitoring. A new brittleness index with consideration of thermal effect is proposed on the basis of crack volumetric strain
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Influence of Geological and Environmental Factors on the Reconsolidation Behavior of Fine Granular Salt Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-18 Yanfei Kang, Jinyang Fan, Deyi Jiang, Zongze Li
Understanding the consolidation behavior of granular salt is of great significance for salt cavern repository design and the corresponding long-term safety assessments. To evaluate the influence of environmental and geological factors on the reconsolidation behavior of fine granular salt, a series of orthogonal array design experiments were performed. The experimental results showed that temperature
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Estimation of Surface Soil Moisture Based on Improved Multi-index Models and Surface Energy Balance System Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-13 Mohammad Hossein Jahangir, Mina Arast
Soil moisture is a vital resource that plays a critical role in arid and semi-arid areas. In the present study, a new approach was adopted to estimate surface soil moisture based on multi-index models using reflective and thermal indices as well as surface energy balance system–Iran (SEBS–Iran) in pastures and farmlands in Qom province, Iran in 2016–2017. To select the best model based on remote sensing
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Quaternary Alluvial Aquifer Study Using Integrated Geophysical Approach in Zaghouan Plain (Northeastern Tunisia) Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-12 Amina Ben Fraj, Hakim Gabtni
The study area Zaghouan Plain (northeastern Tunisia) is unique for its strategic Quaternary aquifer, which is, in a great proportion, composed of sand lenses that vary in thicknesses and forms. Conducting an integrative approach based on regional mapping and local studies helped provide precise calibration to identify convenient areas for hydrogeological explorations, which are focused on heterogeneous
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Rapid Determination of Gross Calorific Value of Coal Using Artificial Neural Network and Particle Swarm Optimization Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-11 Hoang Nguyen, Hoang-Bac Bui, Xuan-Nam Bui
In this study, the gross calorific value (GCV) of coal was accurately and rapidly determined using eight artificial intelligence models based on big data of 2583 observations of coal samples in the Mong Duong underground coal mine (Vietnam). Accordingly, the volatile matter, moisture, and ash were considered as the key variables (inputs) for determining GCV. Seven artificial neural network (ANN) models
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A Novel Combination of Tree-Based Modeling and Monte Carlo Simulation for Assessing Risk Levels of Flyrock Induced by Mine Blasting Nat. Resour. Res. (IF 3.708) Pub Date : 2020-08-10 Jinbi Ye, Mohammadreza Koopialipoor, Jian Zhou, Danial Jahed Armaghani, Xiaoli He
The purpose of this study was to develop and introduce novel techniques for predicting and simulating the flyrock phenomenon that happens in mines due to blasting. Two tree-based techniques, genetic programming (GP) and random forest (RF), were developed and applied to predict flyrock distance. Identification and measurements of important parameters affecting flyrock were done in six different quarry
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Correction to: Digital Economy as a Factor in the Technological Development of the Mineral Sector Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-30 V. S. Litvinenko
The article Digital Economy as a Factor in the Technological Development of the Mineral Sector.
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Hybridization of Parametric and Non-parametric Techniques to Predict Air Over-pressure Induced by Quarry Blasting Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-25 Xianqi Zhou, Danial Jahed Armaghani, Jinbi Ye, Mahdy Khari, Mohammad Reza Motahari
This study employed a hybridization approach that combines parametric and non-parametric models to predict air over-pressure (AOp) associated with quarry blasting. A simple linear regression model, which is a kind of parametric model, was used to select the most relevant inputs for predicting AOp. Four parametric models, including Chi-square automatic interaction detector (CHAID), artificial neural
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Sorption and Desorption of CO 2 and CH 4 in Vitrinite- and Inertinite-Rich Polish Low-Rank Coal Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-25 Katarzyna Czerw, Paweł Baran, Jakub Szczurowski, Katarzyna Zarębska
Low-pressure sorption tests were carried out on samples of selected Polish bituminous coal in coal–methane and coal–carbon dioxide systems. The purpose was to determine the relationship between the petrographic composition of low-rank coal and the amount of gas stored in its porous structure and desorbed from it. The influence of the degree of coalification on the amount of sorbed gas was reduced to
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Application of Low-Salinity Waterflooding in Carbonate Cores: A Geochemical Modeling Study Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-20 Daniel Isong Otu Egbe, Ashkan Jahanbani Ghahfarokhi, Menad Nait Amar, Ole Torsæter
Waterflooding is the most widely applied improved oil recovery technique. Recently, there has been growing interest in the chemistry and ionic composition of the injected water. Low-salinity waterflooding (LSWF) is a relatively recent enhanced oil recovery technique that has the ability to alter the crude oil/brine/rock interactions and improve oil recovery in both clastics and carbonates. In this
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Global Optimization for Delineation of Self-potential Anomaly of a 2D Inclined Plate Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-20 Khushwant Rao, Shraddha Jain, Arkoprovo Biswas
A fast and efficient technique for explanation of self-potential anomalies is of immense importance for exploration, engineering, and environmental problems. Estimation of model parameters of ore bodies in the subsurface is the primary concern in mineral exploration. In most cases, self-potential data are delineated considering various simple or idealized structures for the interpretation of lateral
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Pore Structure Characteristics of Ultra-Low Permeability Reservoirs Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-19 Daiyin Yin, Dongqi Wang, Yazhou Zhou, Chengli Zhang
Pore structure characteristics of ultra-low permeability reservoirs are studied in this paper. The impact of pore structure characteristics on permeability and reservoir development effect is analyzed by conventional and constant-rate mercury penetration experiments. The results show that the frequency curve of pore radius distribution of ultra-low permeability reservoirs has little change with permeability
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Correction to: Textural Quantification and Classification of Drill Cores for Geometallurgy: Moving Toward 3D with X-ray Microcomputed Tomography (μCT) Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-19 Pratama Istiadi Guntoro, Yousef Ghorbani, Alan R. Butcher, Jukka Kuva, Jan Rosenkranz
The original version of the article unfortunately contained an error in Table 9. In article PDF, Table 7 was inadvertently repeated in place of Table 9 instead of placing the appropriate table. However, the article available online is correct.
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A Novel Combination of Whale Optimization Algorithm and Support Vector Machine with Different Kernel Functions for Prediction of Blasting-Induced Fly-Rock in Quarry Mines Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-15 Hoang Nguyen, Xuan-Nam Bui, Yosoon Choi, Chang Woo Lee, Danial Jahed Armaghani
This study proposed a novel data-driven model for estimating distance of fly-rock in bench blasting in open-pit mines using a robust combination of the whale optimization algorithm (WOA), support vector machine (SVM) and kernel functions. Four kernel functions were investigated for embedding in the SVM model, including linear (L), radius basis function (RBF), polynomial (P), and hyperbolic tangent
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Quantitative Reservoir Characterization of Tight Sandstone Using Extended Elastic Impedance Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-16 Ren Jiang, Chenglin Liu, Jing Zhang, Qingcai Zeng, Pei He, Jiaqiang Huang, Bingyi Du, Weiwei He, Tao Hao, Jianxin Zhang
Quantitative inversion of reservoir properties plays a crucial role in the efficient development of tight sandstone reservoirs. Based on the theories of statistical rock physics and extended elastic impedance (EEI), a complete workflow for quantitative prediction of reservoir properties is developed and the key steps thereof are provided here. The square of S-velocity to P-velocity ratio (K), which
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A Novel Approach to Self-potential Data Interpretation in Support of Mineral Resource Development Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-16 Mahmoud Elhussein
A new efficient technique has been developed to interpret self-potential data from different mineralized sources (horizontal cylinder, vertical cylinder, sphere, and 2-D inclined sheet). This technique is based on the first horizontal gradient filter and particle swarm optimization algorithm. This suggested method can be used for single-source and multiple-source interpretation. In this study, the
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Size Reduction Characterization of Underground Mine Tailings: A Case Study on Sandstones Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-09 Ekin Köken
The production of construction and building materials starts with reducing the size of natural, industrial, and waste materials. In addition to strength and durability considerations of natural resources recommended by various institutions, size reduction characterization, specific to rock aggregates, has a vital role in their size-related quality. In this study, various sandstones extracted from underground
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Targeting Geothermal Exploration Using Airborne Multi-geophysics, Kutcharo Caldera, Teshikaga Area Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-01 Hiromasa Ishikawa, Shunsuke Nogami, Masashi Endo, David Sunwall, Jurriaan Feijth, Jackie Hope, Takuji Mouri, Gen Nakamoto
Multiple geophysical techniques have been applied to geothermal exploration within the Teshikaga area. The three-dimensional inversion of HeliFalcon® airborne gravity gradiometry (AGG) data has enabled a detailed interpretation of subsurface features. The vertically elongated high-density anomalies beneath lava domes located near Wakoto Peninsula and Mt. Atosanupuri are interpreted as subsurface intrusive
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Magnetic Data Interpretation Using a New R-Parameter Imaging Method with Application to Mineral Exploration Nat. Resour. Res. (IF 3.708) Pub Date : 2020-06-01 Salah Mehanee, Khalid S. Essa, Zein E. Diab
A new imaging method has been developed for elucidating the observed magnetic data gauged along profile. The method is based on the calculation of the correlation factor (the R-parameter) between the analytic signal of the measured magnetic anomaly and the analytic signal of the calculated response of some geometrically simple interpretive models in the confined category of sheets, cylinders, and spheres
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Evaluation of WorldView-3 VNIR and SWIR Data for Hydrothermal Alteration Mapping for Mineral Exploration: Case Study from Northeastern Isfahan, Iran Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-28 Touba Salehi,Majid H. Tangestani
This research evaluated the capability of WorldView-3 (WV-3) data in discriminating targets related to porphyry copper mineralization at the Tameh district in the Saveh–Yazd belt, northeastern Isfahan, Iran. The few known porphyry copper deposits in this district were formed in association with Oligo-Miocene intrusive bodies. Hydrothermal alteration zones are characterized by iron oxide/hydroxide,
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Logistic-Based Translation of Orogenic Gold Forming Processes into Mappable Exploration Criteria for Fuzzy Logic Mineral Exploration Targeting in the Kushaka Schist Belt, North-Central Nigeria Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-28 Sherif Olumide Sanusi, John Olurotimi Amigun
This paper applied a logistic-based fuzzy logic inference system to integrate critical factors that could control orogenic gold mineralization in part of the Kushaka schist belt, north-central Nigeria to develop a process-based mineral potential mapping (MPM) of the area. The critical factors from geophysical and geological dataset were weighted using logistic functions. The fuzzy logic inference system
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Improved Water Quality Prediction with Hybrid Wavelet-Genetic Programming Model and Shannon Entropy Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-25 Hamideh Jafari, Taher Rajaee, Ozgur Kisi
Prediction of biochemical oxygen demand (BOD) as the main pollution indicators of organic pollution in freshwater resources is necessary. In the present work, a hybrid wavelet-genetic programming (WGP) method was implemented to improve prediction of BOD. The Shannon entropy was used to identify the optimal input combinations of WGP. In addition, an investigation was done to find which functions of
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Geochemistry of Famennian to Visean Metapelites from the Iberian Pyrite Belt: Implications for Provenance, Paleo-Redox Conditions and Vectoring to Massive Sulfide Deposits Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-25 Filipa Luz, António Mateus, Carlos Rosa, Jorge Figueiras
Massive sulfide deposits of the Iberian Pyrite Belt (IPB) document the progression of ore-forming processes in the SW Iberian Variscides, throughout uppermost Devonian to Early Carboniferous. Sulfide ores are usually hosted in volcanic-dominated or shale-dominated successions belonging to the Volcano-Sedimentary Complex (VSC; Late Famennian to Late Visean). Yet, several important orebodies at Neves-Corvo
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Gas Emission and Soil Chemical Properties Associated with Underground Coal Fires, Wuda Coalfield, Inner Mongolia, China Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-23 Haiyan Wang, Junpeng Zhang, Lei Zhang, Jiali Wang, Zuohui Xu
The coal fire area in the Wuda coalfield is divided into four parts based on the degree of burning and on surface characteristics: sub-area B is characterized by degraded vegetation, sub-area A has spontaneous combustion but no obvious features, sub-area O has vents and cracks, and sub-area C is characterized by red pyro-metamorphic rocks. Emitted gas contents and temperature at the surface were measured
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Waveform Characteristics of Earthquakes Induced by Hydraulic Fracturing and Mining Activities: Comparison with Those of Natural Earthquakes Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-22 Nan Li,Baolin Li,Dong Chen,Enyuan Wang,Yuyang Tan,Jiawei Qian,Haishan Jia
Some industrial activities, such as underground mining, hydraulic fracturing (HF), can cause microearthquakes and even damaging earthquakes. In recent years, with the rapid development of mining and HF, many induced damaging earthquakes have been reported and studied. The seismic waves contain rich information of the seismic sources and wave propagation path, which are the valuable data for studying
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Artificial Neural Network and Firefly Algorithm for Estimation and Minimization of Ground Vibration Induced by Blasting in a Mine Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-22 Parichehr Bayat,Masoud Monjezi,Mojtaba Rezakhah,Danial Jahed Armaghani
It is of a high importance to introduce intelligent systems for estimation and optimization of blasting-induced ground vibration because it is one the most unwanted phenomena of blasting and it can damage surrounding structures. Hence, in this paper, estimation and minimization of blast-induced peak particle velocity (PPV) were conducted in two separate phases, namely prediction and optimization. In
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Dual-Porosity Coupled Borehole Gas Flow Model: A New Method for Inversion of Coal Seam Permeability Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-18 Jia Liu,Yueping Qin,Tianbai Zhou,Yu Gao
The permeability of a coal seam is an important index for coal mine gas control and coalbed methane development, and its magnitude determines the degree of difficulty of gas drainage. To obtain the permeability value, a dimensionless mathematical model for dual-porosity borehole gas-coupled flow in a coal seam was established and adopted using a simulator developed by our group. A new method of inversion
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Geodata Science-Based Mineral Prospectivity Mapping: A Review Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-18 Renguang Zuo
This paper introduces the concept of geodata science-based mineral prospectivity mapping (GSMPM), which is based on analyzing the spatial associations between geological prospecting big data (GPBD) and locations of known mineralization. Geodata science reveals the inter-correlations between GPBD and mineralization, converts GPBD into mappable criteria, and combines multiple mappable criteria into a
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Ecological Security Assessment of the G20 and its Drivers: EF-Path-STIRPAT Modeling Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-18 Zhili Zuo, Haixiang Guo, Jinhua Cheng, Shicheng Li
Because of the increasing global attention being given to ecological security, the need to identify and quantify its underlying causes has sparked heated debate. However, there has not been any overall assessment of the ecological security in the G20 countries, which could seriously hinder sustainable development. Therefore, to investigate the ecological security situation in the G20 countries from
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A High Thermal Conductivity Cement for Geothermal Exploitation Application Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-17 Sheng Wang,Liming Jian,Zhihong Shu,Shaohua Chen,Liyi Chen
In geothermal reservoir exploitation, the thermal conductivity of casing cement material is a key parameter that may affect the heat exchange and utilization efficiency of geothermal reservoirs. Based on a systematic approach of theoretical analysis, experimental research and microscopic analysis, this paper presents graphite composite cement (GC) with high thermal conductivity for potential application
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Evaluation of the Presence of Methane in Złoczew Lignite: Comparison with Other Lignite Deposits in Poland Nat. Resour. Res. (IF 3.708) Pub Date : 2020-05-16 Jan Macuda,Paweł Baran,Marian Wagner
Catastrophic cases of methane explosion during exploratory drilling within the Bełchatów ortholignite deposit have led to testing for methane in other Polish ortholignite mining areas, as well as in the Złoczew deposit, where it is planned to begin mining operations. Initial tests have shown Złoczew lignite to have the highest methane content among the Polish deposits so far studied, comparable with
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