Using the principles of Quaternary geology and geomorphology, this study analyzed the genetic types, composition, lithofacies and spatial distribution of Quaternary deposits in the first terrace sediments adjacent to the Yangtze River in Wuhan. These sediments exhibit a typical binary structural sedimentation rhythm, where sedimentary particles in the same sediment are sequenced progressively fine

Subsidence can result from the collapse of underground cavities. The impact of such subsidence on existing structures and infrastructures is generally dramatic. Geosynthetic reinforcement (GSY) is an attractive mitigation solution that can be used to reduce this impact. This paper focuses on the mitigation solutions over existing cavities mainly on the GSY mitigation method. A large-scale physical

Seismic wave induced by blasting excavation of tunnel may exert adverse effects to the surrounding rock. To study the different characteristics and attenuation of blast-induced vibration in the blasting tunnel and adjacent tunnel, field blasting tests are carried out to record velocity–time histories during blasting in Wanhua Underground Gas Storage. The characteristics and attenuation of vibration

The area of oil and gas production may have more noteworthy radioactivity levels, due to the disposal petroleum pipes containing sludge and scale as a technologically enhanced natural occurring radioactive material (TENORM) which leads to potential radiological and health dangers. The specific radioactivity concentrations of 226Ra, 232Th, and 40 K in 124 of soil and waste petroleum samples such as

Aquatic sediments act as a source for nutrients as well as contaminants, among which there are polycyclic aromatic hydrocarbons (PAHs) such as phenanthrene (Ph), anthracene (An), pyrene (Py) and benz(a)anthracene (Ba). Phytoplankton can be an indicator of contaminants presence, thus, we decided to study it in Los Barreales reservoir (Neuquén Province, Argentina). Reservoir water and sediments were

Evaluating the status of the water quality of freshwater bodies is crucial for safe use. In this work, the water quality of an understudied Mediterranean reservoir was investigated, using Water Quality Index (WQI) and principle component analysis (PCA) during an 8-year study period, between 2009 and 2016. The WQI was analyzed based on weighted sum aggregation function, considering the following variables:

The problem of subsidence and damages on buildings above mining works is an inevitable consequence of underground coal mining in large mining basins. Significant development of various methods for prediction of the displacement parameters of the undermined terrain took place in the period from the middle of the last to the beginning of this century. In this paper, a new mathematical model of the stochastic

In recent years, with the development of geothermal resources, the thermal conductivity of soil has become a research hotspot. In this study, the thermal conductivity measured by the transient plane heat source method was used to evaluate five common thermal conductivity models from the previous literature. The influences of water content and salt content on the internal heat transfer mode of this

Buckling failure is a special form of a landslide, and it has been little debated in the literature so far. There have been few studies conducted on this type of slope failure, and the corresponding reinforcement measure research has also been rarely conducted. Therefore, it is nearly impossible to provide systematic guidance for the reinforcement and monitoring of such a slope. In this study, a new

This research aims to determine the hydrogeochemical characteristics, origin, and geochemical evolution of the Cr enriched alkaline waters in the ultramafic rock-related water bodies of Loutraki basin in Northeast Peloponnese, Greece. The significance of the particular research lies in the fact that Cr occurrence raises concerns with respect to health risks associated with the utilization of such aquifers

Water resource is a valuable resource for human beings to survive and maintain social stability and development. However, in recent years, the process of urbanization has been accelerated, and many cities and towns have presented groundwater pollution. To investigate the spatial distribution of hydrochemical components in urban areas after groundwater pollution and the hydrogeochemical effects on surrounding

Soil organic carbon (SOC) was studied across a gradient of 400–550 ppm CO2 in calcareous contaminated semi-arid areas. An experiment was performed under natural and artificial vegetation cover of Atriplex canescens (Pursh) Nutt. SOC and vegetation cover were investigated every 2 years from 2012 to 2018. Findings disclosed that there was a polynomial relation between SOC and CO2 concentration. The SOC

Understanding the mechanical behaviors of granite after high temperature exposure and under confining stress conditions is an important issue in deep rock engineering projects such as the mining of deep underground solid mineral resources, deep geothermal energy exploitation and deep nuclear waste repositories. In this research, conventional triaxial compression experiments were conducted on Nanan

Astrazon red azodye that is still widely used in Turkey is released into the aquatic environment. Since these dyes are degradable into the toxic aromatic amines, they have become a public health and environmental concern. In this study, the biosorption of the Astrazon red dye from aqueous solutions on dehydrated cells of Rhodopseudomonas sp. 51ATA was studied as a function of each pH, temperature and

Field and petrographic descriptions of recent sabkha sediments at the eastern coast of Al-Kharrar lagoon, Red Sea coast of Saudi Arabia indicate the co-existence of gravel-sized, arrowhead, twinned gypsum crystals (< 23 cm long) and lenticular gypsum crystals (4–10 cm in size) of subaqueous and subaerial origin, respectively. Sand- and silt-sized, individual, lenticular and tabular gypsum crystals

Understanding the hydrochemical and isotopic characteristics of groundwater and hydrogeochemical processes is crucial for groundwater resource development and environmental protection, especially in semiarid regions. To address this question, we collected and tested groundwater and river water samples form the Hongjiannao Lake Basin. The groundwater samples were took from a porous medium aquifer and

An integrated study on slope stability has been conducted in the high weathering zone of the tropical and active tectonic country, Indonesia. The research aims to introduce an integrated and comprehensive approach in studying the soil and rock slope stability. Geophysical methods, including two seismic refraction tomography (SRT) and electrical resistivity tomography (ERT) lines, were deployed to determine

Block stability analysis is important for studying the overall stability of surrounding rock in slope engineering. The main problem in regards to block stability analyses is determining the relative positional relationship between the structural plane and the free face. Consequently, studying the structural plane and free face is of great significance in engineering. By using the steep rocky slope

A study of two typical red soil profiles, Gumu (GM-limestone) and Sanjiacun (SJC-dolomite) was conducted at Yunnan–Guizhou Plateau, China. The study employed mineralogy, geochemical and elemental ratios to assess the mobilisation and distribution of elements during weathering and pedogenesis. The mineralogy results revealed similarity in distribution of secondary minerals in both profiles, with exception

In this study, 1-km gridded land use maps from 1980, 1990, 1995, 2000, 2005, 2010, and 2015 were used to analyze transitions in the spatial distribution and land use/cover in the Haihe River Basin (HRB) of China. The patterns of changes in land use/cover were characterized by an increase in rural–urban industrial lands and decreases in cropland, forestland, grassland, water, and unused land. Meanwhile

Earthquake is one of the foremost perils that cause several damages in northern Pakistan. Numerous investigations have been put forward to recognize seismic behavior in the region for better disaster management. Earthquake data recorded from 1980 to 2019 are used in this study. The methodology used is an integrated study of seismology, statistical, and machine learning algorithms. In this study, statistical

Several major earthquakes have jolted Pakistan during the last 30 years, destroyed infrastructure and severe damage to the economy. Despite advancement in data sciences and its linkages with other domains, no such study has been conducted in Pakistan, which incorporates the application of machine learning techniques on ambient noise data. This study presents the application of machine learning techniques

On 28 July 2013, an intense torrential rainfall occurred at the boundary of Yamaguchi and Shimane Prefectures in western Japan, and triggered a debris flow on an ungauged hillslope to bury the entrance of Shirai tunnel and to shutdown railway service in that region for 1 year. To assess this disaster, this study aims at numerically modeling this debris flow event through a methodology incorporating

The paper aimed to explore the morphometry of the plunge pool and retreat mechanism of the waterfalls with the help of an empirical study of Turga Waterfall of Ajodhya Hill, Purulia, West Bengal, India. To explore the morphology of waterfall and its plunge pool, width (w), average depth (d), the maximum depth (\(d_{{{\text{max}}}} )\), bathymetric study of plunge pool, and fall height or drop height

Crenotherapy is a natural treatment and health protection method, thus using natural mineral water are gaining popularity as an alternative to pharmacotherapy or as additional support in many types of diseases. The aim of this study was to determine the occurrence of germanium (Ge) in mineral non-geothermal waters from Low Beskid area, Poland. The collected mineral water samples from natural springs

El Moghra area, in the western desert of Egypt, is an important part of the national reclamation project (1.5 million acres—6.07 × 109 m2), which depends on the groundwater of El Moghra Formation (MF), the main aquifer in this area. Moghra Oasis and its surroundings are characterized by vast areas of good soil, which are favorable for agricultural development. In this respect, ambitious plans and successful

Throughout construction process of a tunnel in an active tectonic region, it may be impossible to avoid active faults. Active faults create two adverse effects on the tunnels which are sudden fault displacement and weak ground conditions in fault zone. If a tunnel crossed by an active fault, the tunnel might be damaged by sudden movement of the fault. However, the main goal is to localize this damage

Using of polymer encapsulated beads with antimicrobial agents is a novel and very promising strategy. In this study, a natural polymer; Sodium alginate, was used to encapsulate the very efficient disinfection agent; Virkon S for the first time. Preparation and characterization of beads was done by FTIR, UV/Vis and microscopy. Quantitative releasing of Virkon S from beads was also analyzed. After chemical

Tea plantations cover an area of ca. 31,000 ha in the Central North of Iran. This area, after clearing the original forests more than 50 years ago, became exposed to severe soil erosion. The objective of this study was to assess long-term soil erosion rates in tea farms and to evaluate their soil conservation effect at a whole-of-catchment scale. No previous information on direct measurements of soil

To distinguish various blasting and mine microseismic (MS) waveforms, the time–frequency characteristics and non-linear characteristics of mine MS waveforms caused by mining activities and different blasting waveforms (loosening blasting, pre-splitting blasting and deep-hole blasting) are analyzed using fast Fourier transform (FFT), smoothing pseudo-Winger-Ville distribution (SPWVD) and multifractal

Aquifer parameters from geophysical well logs and pumping tests were used to evaluate the potential of fractured aquifer of khondalitic terrain of Northern parts of Eastern Ghats of India. The parameters under consideration are porosity and formation-water resistivity for the highly weathered material and the fractured khondalitic aquifer. The resistivity of fractured zones ranged between 28 and 30 Ω m

In this study, a methodology has been proposed that can be used to estimate the peak unit discharge for all the watersheds in the northern part of Cyprus. Thus, the Soil Conservation Service method was used to determine the unit hydrographs of 366 watersheds available in the study area. Through the Digital Elevation Model with a spatial resolution of 12 m the watershed characteristics such as watershed

The Dezak limestone area, located SW Iran, is a potential site for industrial survey project of Precipitated Calcium Carbonate (PCC). Economic geology studies and geochemical implications of the area involve a high-risk level given the high purity of the limestone and the amount of penalty elements in the deposit. Generally, considering the compositional properties of geochemical data and using multivariate

Efficient rainfall/runoff data modeling necessitates field data availability. Remote and rough terrain areas restrict data collection that leads to less reliable simulated models. Consequently, complete geographic databases are the quest to conduct over the catchment under investigation. The hydrologic model developed for this research based on different return periods (2, 5, 10, 25, 50, 100, and 200 years)

High altitude, Andean wetlands, or bofedales as they are locally known, are important regulators of the local water balance and also play a key role in sustaining biodiversity. Nevertheless, there is almost no information regarding their hydrogeological structure and functioning. This paper aims to characterize the thickness of the alluvial filling of one peat-accumulating wetland in North-Central

In arid areas, the estimation of evaporation rates plays a considerable role on both water resources management and agricultural activities. Hence, it is of utmost importance to determine the best model to predict these rates. This study investigates the applicability of using quantile regression forest in predicting the pan evaporation. The model was configured using data from three different meteorological

Identification of sediment sources within catchments is crucial for river and catchment management. A multivariate mixing model in conjunction with two sets of statistically verified composite fingerprints was employed to identify the main sediment source areas at five locations along the main channel of the Shouchang River, southeastern China. The fingerprint composite fingerprints derived from the

Soil water plays an important role in the ecological restoration of karst areas impacted by rocky desertification (KRD) caused by deforestation. A better understanding of the spatiotemporal dynamics and modes of water flow in KRD areas is essential for satisfactory soil water management. This study examines the soil water content (SWC) and stable isotope (δ18O and δD) patterns in seven sampling sites

The aim of this study is to remedy the existing problems in the prediction methods of water inrush from the mining coal seam floor. This paper analyzes a large number of water inrush cases and proposes that there are four main factors, namely water pressure and water abundance of the confined karst aquifer in the mine floor, the lithological thickness and characteristics of different structures of

The mechanical properties of the clay slope gradually weaken after the drying–wetting (D–W) cycles, which increases the possibility of landslides. Therefore, the variation of mechanical properties of the root–soil composite during D–W cycles was studied in this paper. Through unconsolidated undrained triaxial test (UU test), the effect of D–W cycles on vegetation slope engineering under different confining

The Xinhua slope of Dagangshan Reservoir is taken as an example to study the potential for reservoir landslides under the combined effects of rainfall and water level fluctuations. Through field investigation, monitoring analysis by global navigation satellite system and numerical simulation, the hydraulic response and stability of the accumulated deposits on the Xinhua slope were evaluated. Three

Inappropriate management of coal mine overburden (OB) dumps creates environmental hazards. In many countries, high concentration of Mn was observed in groundwater near the coal mine OB dump sites. Comparatively new coal mines in Barjora coalfield were chosen in this study to assess the impact of OB dumps in groundwater. Acid Digestion (AD), Toxicity Characteristics Leaching Procedure (TCLP) and Batch

In areas with strong earthquakes, the triggering rainfall threshold for debris flow initiation decreased dramatically just after the quake, but will increase gradually during the subsequent raining seasons, until the level before the quake. The channel width and particle size in the source area of debris flows in catchments decreased dramatically during a strong earthquake due to the supply of finer

A Late Pleistocene–Holocene loess–paleosol sequence in central Argentina was studied to obtain a weathering insight and to probe geochemical tools as paleoclimatic proxies. Three paleosols and a buried soil interlayered with loess mantles compose Corralito I sequence (32°00′7″ S, 64°11′08″ W, 469 m a.s.l). Several weathering indices (CIA, CIA-K, and LWI) and elemental ratios (∑Bases/Al2O3, Rb/Sr, CaO/TiO2

Eco-geo-environment quality refers to the degree of the merits of eco-geo-environment, which reflects the suitability of eco-geo-environment for sustainable development of human activities and socioeconomics in a specific time and space. The ultimate purpose of eco-geo-environment investigation and evaluation is to guide human production and life practice. Qaidam Basin, situated in the northeast Qinghai-Tibet

Resistivity range for groundwater-bearing fracture zones was studied in the fractured shales and sandstones of pre-Santonian sedimentary succession in Abakaliki area, southern Benue Trough, Nigeria using vertical electrical sounding (VES) data and borehole lithologs. The results of the study indicate that resistivity of water-bearing fracture zones in the shales is ≤ 52 Ωm and about 107 Ωm in sandstones

River bank filtration (RBF) is one among the managed aquifer recharge methods which is inexpensive and sustainable means to improve the quality of surface waters undergoes natural treatment by subsurface flow through the aquifer medium. This study was carried out to investigate the feasibility of a RBF to improve water quality of Gorganroud River, Iran. For this purpose, 48 water samples were simultaneously

Eolian loess in China contains abundant information about paleoclimate evolution, but there have been few studies of the relationship between the changing permeability of loess and the paleoenvironment. To investigate how loess–paleosol permeability responds to climate change, 342 undisturbed soil samples were collected from the Jingyang Loess Plateau in the Guanzhong Basin. Permeability was measured

The Liulin Spring catchment in Shanxi Province has abundant karst groundwater resources that play a supporting role in the economic and social development of the Lvliang region. Research on the factors controlling the chemical evolution of karst groundwater can be of great significance for the sustainable utilization and effective protection of groundwater resources in the basin. In this study, the

The catchment basin of Bandan River in Hamoun territory in E-Iran was studied to determine the origin of river sediments and its contaminant potential for the Hamoun Lake pollution. Thirty-four stream bed samples were analyzed for major oxide and trace elements. Geochemical discriminant diagram represents litharenite composition for the river sediments. On the discriminant functional diagram, the samples

Groundwater modelling is a commonly used technique to determine the influence of surficial processes on subsurface aquifers. In this study, a groundwater monitoring study was conducted on an agricultural field adjacent to a large drainage canal to determine the effects of the canal's operation as it relates to soil salinity during periods around flood events. The groundwater monitoring program consisted

Emet River Basin is a worldwide significant mining area and contains the most important boron and chromium deposits of Turkey. In this study, water and sediment quality of Emet River Basin was evaluated using some toxic element risk assessment indices. Samples were collected seasonally from 8 locations and nickel (Ni), chromium (Cr), arsenic (As), zinc (Zn), lead (Pb), copper (Cu) and cadmium (Cd)

The assessment of rock mass cavability is a key research topic when mines intend to adopt block caving mining during the feasibility stages. However, cavability assessment is a multi-index and non-linear complex process in system engineering, and uncertainty exists in the assessment process. In this situation, it is important for cavability assessments to minimize the subjectivity of human judgements

The poor quality and inconsistent nature of most surface water supply in arid and semi-arid regions of the world has increased the reliance on groundwater resources. However, the susceptibility of groundwater to anthropogenic pollution in most cities and rural communities in Nigeria has become a major source of concern. In this study, the protective capacity of the aquifers in parts of the Bauchi State

The ambient gamma radiation around the Bellary thermal power plant was measured by Scintillometer of NaI (Tl) detector. The ambient gamma radiation level is mainly dependent upon the activity of primordial radionuclides present in soil and building materials. The activity of natural radionuclides presents in the soil and building materials of some villages around the Bellary thermal power plant is

The east foothill of the Taihang Mountains, Hebei Province, is an important groundwater recharge and transport area in the North China Plain. It is of practical significance to study the groundwater hydrochemical characteristics of this area for rational groundwater regulation. In this study, the Chadha rectangular diagram and Piper trilinear diagram were adopted to identify the relevant hydrochemical

To investigate the long-term stability of surrounding rock in tunnels in cold regions, the gneiss in the Huibai tunnel of Jilin Province in China was selected for the triaxial creep test after subjecting it to freeze–thaw (F–T) cycles. Furthermore, the influence of F–T cycles on the creep properties of saturated gneiss was analyzed and discussed. The experimental results showed that the increase in

Glacier velocity is one of the significant parameter for the assessment of the glacier dynamics, which directly signifies the response of the glacier health with the respect to climate change. The present work focuses on analysing the spatio-temporal characteristics of the surface velocity in the Dhauliganga basin for seven glaciers. The cross-correlation method was applied on the panchromatic scenes

The sediment core collected at a water depth of 260.2 m off Mahanadi, western Bay of Bengal was analyzed for grain size fractions, clay minerals, and major and trace elements to understand changing depositional environments, source and processes with time, from ~ 2300 cal yr before present (BP) to the year of the collection (2014). Age was estimated using accelerator mass spectrometer (AMS) 14C dates

Recent in situ fine-grid waterfront survey integrated with inland elevation, nearshore depth soundings and wave data are incorporated into procedures for determining natural hazards, which are prevailing or expected at Alexandria/Nile delta interface on the Mediterranean Sea of Egypt. The hazards being assessed include wave runup height, inundation distance, rates of sea-level rise and shoreline change