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May 06, 2026Open Access
A geospatial assessment of selected heavy metal concentration and associated human exposure risks in and around Chetambe Hills has been done in this study in soils at different depths using the Energy Dispersive X-ray Fluorescence (EDXF). 16 soil samples were collected at different depths and analyzed for elemental concentrations using the AXIL software. The heavy metals analyzed were Ni, Cu, Zn, Pb and As. Ni concentrations ranged from 289 ± 12.3 ppm to 478.4 ± 2.3 ppm with an average of 409.1 ...
Feb 02, 2026Open Access
A radiological assessment due to natural radioactivity in rocks and associat-ed health impacts in Chetambe hills, Kenya has been done using NaI (TI) de-tector employing gamma ray spectrometry technique. The activity concentrations of 238U in the rock samples ranged from a minimum of 33 ± 1.65 Bq/Kg to a maximum of 119 ± 5.97 Bq/Kg with an average of 68 ± 3.23 Bq/Kg. The activity concentrations of 232Th varied from a minimum 15 ± 0.75 Bq/Kg to a maximum of 167 ± 8.39 Bq/Kg w...
Nov 28, 2025Open Access
Rockfall is a common mountain geological disaster. It has the characteristics of high release energy, sudden and strong disasters. In order to effectively prevent the occurrence of geological disasters such as rockfall. This paper takes the perilous rock mass of Baiyan Mountain in Guilin as the research object. The perilous rock mass of Baiyan Mountain is classified and numbered and the corresponding stability evaluation standard is formulated for the Baiyan Mountain perilous rock mass group. Ba...
Oct 23, 2025Open Access
The accuracy of the T 2 cutoff value directly impacts the precision of calculating bound fluid saturation, mobile fluid porosity, and permeability in nuclear magnetic resonance (NMR) measurements. The porous structure of deep tight sandstone reservoirs is complex, characterized by low porosity, low permeability, and strong heterogeneity. As a result, fixed T 2 cutoff values are not suitable for these reservoirs. In order to improve the calculation precision of T 2 c...
Sep 16, 2025Open Access
This research aims to explore changes in Land Use and Land Cover (LULC) and how LULC have an influence on the Land Surface Temperature (LST) in Rupandehi district. Multiple Landsat imagery across the two decades was utilized, particularly Landsat 7 ETM for 2003 and 2013, and Landsat 8 OLI/TIRS for 2023. Both QGIS and ArcGIS Pro were used for spectral indexing. LULC classification was performed in R using Random Forest, where 5 major classes were categorized. A confusion matrix that was also per...
Aug 22, 2025Open Access
This paper focuses on the cooperation between Twangiza Mining, an industrial highland long-term open-pit gold mine, in the eastern part of the DR Congo, and neighboring communities. Various projects have been implemented, including: water supply, education, health care, infrastructure, ecological rehabilitation, humanitarian assistance, and sustainable income generation through income generating activities. Results show that most people in the local community used to live in aggravated poverty, ...
Aug 07, 2025Open Access
The Liaoshang gold deposit in the Jiaolai Basin (North China Craton) has had its deep resource potential limited by inadequately understood vertical metallogenic patterns. Using 220 drill holes, 523 stope samples (38879.7 m), and 18,415 Au assays, this study employs implicit 3D modeling to decouple deep-shallow mineralization systems. A critical boundary at -400 m is identified: Shallow (＜-400 m) NE-striking steep veins (avg. 1.2 m thick, Au ＞ 5.5 g/t) are controlled by monzogranite-marble conta...
Jul 11, 2025Open Access
The comparative analysis of conservation management of Simien Mountains National Park (SMNP) and Qianjiangyuan National Park (QNP) in China provides deductions that can be successfully implemented as conservation strategies and replicated in other protected areas. QNP benefits from a tiered administrative framework with strong provincial leadership and stakeholder collaboration yielding versatile conservation strategies. Effective land-use regulations and zoning have kept more than 81.7% of the ...
Feb 25, 2025Open Access
As of 2005, the city of Saidia has undergone substantial urban expansion, which has led to the Tazgrarte Forest, a major urban green space, not just for the citizens but also for tourists alike, to decline in urban forests. In this regard, this research aims to assess the differences in the forest cover of Tazgrarte Forest from the period of 2005-2025, concentrating on the impact of urban expansion at three critical points in time: 2005, 2015 and 2025. Forested area reduction and urban growth dy...
Feb 10, 2025Open Access
Shanxi Province, a leading coal-producing region in northern China, holds abundant reserves of bituminous and subbituminous coal critical to the nation’s energy sector. However, extensive coal mining has left behind Goaf areas underground voids and fractured zones that pose serious safety hazards and environmental risks. These challenges require innovative approaches to ensure sustainable resource management and ecological protection. This work aims to enhance the exploration and management of G...
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