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Engineering-Geological And Seismic Conditions Of Arid Territories, Mirabbas Mirsaatovich Zakirov, Golibjon Ernazar Ugli Ochilov, Dilshod Kalandarovich Begimkulov, Inobat Abduvakhidovna Agzamova, Temur Makhmarajabovich Khudoyberdiyev, Ayzada Qaunis Jetpisbaeva

Technical science and innovation

This article presents the results of an assessment of seismic intensity increments depending on the engineering and geological conditions of arid areas in the Muynak district, located in the current Aral Sea crisis zone. Natural and man-made factors shaping the geological environment are examined, including geological structure, lithological and stratigraphic composition, soil physical and mechanical properties, and hydrogeological conditions. Based on the analysis of engineering-geological data, normative classifications of soils according to seismic properties and field research materials, seismic microzoning of the territory was carried out, identifying areas with initial seismicity (“0”) and zones with an increase in seismic intensity …

Radiological And Chemical Safety Assessment Of Drinking Water From Treatment Plants And Rivers In Kut City, Iraq, Ahmed A. Alswaty, Hadi D. Alattabi

Karbala International Journal of Modern Science

Climate change and increasing anthropogenic activities, particularly wastewater discharge into rivers, have raised pollution levels in the water sources of Kut City, necessitating an assessment of the radiological and chemical safety of drinking water at the city's treatment plants. Thirteen water samples were collected, comprising ten treated and three raw water samples from the source rivers. An HPGe detector was used to measure the radionuclides ²¹⁴Bi, ²¹⁴Pb, ²¹²Bi, ²¹²Pb, ⁴⁰K, and ¹³⁷Cs. All measured radionuclides were below the minimum detectable activity (MDA). ICP-OES analysis supported these findings, as U concentrations in most samples were …

Gustave Courbet: Realist And Rebel, Leopold Museum Vienna, Austria, Joyce Polistena

Art Inquiries

No abstract provided.

Hydrothermal Alteration Mapping Of The Northern Coongan Greenstone Belt Using Remote Sensing Imagery, Meaza Bogale, Elias Woldeyohanis

Journal of Sustainable Mining

Archean greenstone belts are well known for their ore deposits, diverse lithostratigraphy, and well-preserved evidence from the early Earth. The Northern Coongan Greenstone Belt is an Archean greenstone belt that is part of the Eastern Pilbara Craton of Western Australia. The rock units of this area have the potential to be sources of valuable mineral deposits, which could be economically beneficial for extraction. Studies have been conducted in the northern Coongan greenstone belt, mostly using geological field methods and geophysical interpretations, excluding remote sensing methods for mapping mineral indices. Therefore, this study aims at providing surface mineral distribution maps and …

Synthesis And Characterization Of A Novel Crystal Complex Of Copper(Ii) With A Tridentate Schiff Base, Bushra Mohan, Naser Shaalan

Baghdad Science Journal

This study presents a simple method for synthesizing a novel distorted octahedral copper(II) compound. The structural and electronic properties of the compound were determined using single-crystal X-ray diffraction (SCXRD). A three-coordinate Schiff base ligand (NNO system) was synthesized by condensation and fully characterized using Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (¹H-NMR), carbon-13 nuclear magnetic resonance (¹³C-NMR), electrospray ionization mass spectrometry (ESI-MS), thermogravimetric/differential gravimetric analysis (TGA/DTG), and elemental analysis (CHN). The ligand is linked to the copper(II) ion via pyridine nitrogen, azomethine nitrogen, and enol oxygen, forming five-membered rings. The crystal structure reveals …

Mountain Development In Nepal: Settlements, Infrastructure, And Economic Transformation, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

As Nepal urbanizes, expands infrastructure, strengthens local governments, and explores deeper connectivity with India and China, climate change is increasing floods, landslides, heat, and water insecurity. Rapid internal migration, rising disaster risks, youth outmigration, and dependence on remittances are also revealing the limits of conventional urban development, especially in the mountainous region. The central challenge for Nepal is no longer just to accommodate growing towns and cities, but to build settlements that are safe, productive, environmentally resilient, and capable of sustaining long-term prosperity.

This paper argues that Nepal's urban future must be guided by a new development paradigm centered on …

Use Of New Improved Methods For Assessing The Engineering-Geological Characteristics Of Deposits By Depth (Using The Example Of The Akba Deposit)., Elboy Shavkatovich Qurbonov Salom, Abduboqib Djalilovich Karimov, Yokub Yarash Ugli Isomiddinov

Technical science and innovation

The article examines the fracturing and filtration properties of rocks in boreholes, rock outcrops, and underground mine workings at the Akba gold deposit. Based on the results of hydrogeological and engineering-geological studies, methods that fully meet modern requirements were used, the values of the RMR rating of rocks and the indicators of the qualitative content of RQD rocks, as well as the intervals of their changes, were studied, as a result of which it became possible to quickly and accurately assess the strength state of the rock mass of the deposit territory by depth and area.

Geoelectrical Signatures Of The Giant Karaburun Pelitic-Mafic-Type Volcanogenic Massive Sulfide Mineralization In The Central Pontides (Türkiye), Kurtuluş Günay, Türker Yas, Buğra Çavdar, Ertan Pekşen

Turkish Journal of Earth Sciences

The Karaburun deposit, hosted in greenschist facies metamorphic rocks, is a newly discovered giant volcanogenic massive sulfide (VMS) deposit in Anatolia and provides an exceptional natural laboratory for geophysical monitoring. The main ore body is less affected by metamorphism than the surrounding wall-rocks, where metamorphic and metasomatic processes formed pyritemagnetite- sericite-quartz assemblages that significantly influence geoelectrical properties. In this study, the geometry and extent of mineralization within geologically defined target zones were investigated using direct current resistivity and two-dimensional timedomain induced polarization (2D-TDIP) methods and the results were compared with the geology. A pole–dipole electrode array was employed in the …

Hvsr-Based Resonance Analysis And Fault Zone Characterization In The El Paso Region, Alexandro Dominguez

Open Access Theses & Dissertations

Horizontal to Vertical Spectral Ratio (HVSR) analysis offers an efficient method for characterizing near-surface structure, resolving sediment thickness, and identifying fault-controlled basin geometry in regions with strong impedance contrasts. This study applies HVSR techniques to continuous ambient-noise recordings collected across the El Paso region, a tectonically active segment of the southern Rio Grande Rift where accurate subsurface mapping is essential for seismic hazard assessment. Ambient-noise windows were processed, spectrally smoothed, and stacked to obtain stable HVSR curves, from which fundamental resonance frequencies and corresponding sediment-thickness estimates were derived. Spatial patterns in these resonance frequencies reveal pronounced basin asymmetry, abrupt lateral …

Enhancing The Mechanical Strength Of Soy-Based Polyurethane Adhesives Through Incorporation Of Schiff Based Diols, Yashkumar N. Patel

Electronic Theses & Dissertations

Recent advancements and trends in eco-efficient bio-based adhesives are explored in recent years. “Eco-efficient” refers to being effective both environmentally and economically. In this study, soy-based polyurethane (PU) adhesives were reinforced with vanillin-derived Schiff base diols (VB and VH) to improve mechanical strength and thermal stability. Two diols synthesized from vanillin and aliphatic diamines butanediamine (BDA) for VB, hexanediamine for VH were incorporated at 5, 10, and 15 weight percentages (wt.%) into a soy-based PU network cured with methylene diphenyl diisocyanate (MDI). Mechanical testing on bonded oak wood showed that adding these crosslinkers noticeably increased adhesive strength. Optimal performance occurred …

Classification Of Land Cover In Sentinel-2 Imagery Using Machine Learning Models, Ehsan Ali Al-Zubaidi, Mohammed Ridha Hammoodi, Ahmed Naser Alzurfi

Al-Bahir

Remote sensing data of medium resolution are commonly used to classify land cover, and machine learning (ML) models have taken on a central aspect in the necessary data analysis. Ordinarily, land cover is coded on a pixel basis on the basis of Digital Number (DN) values, which in turn are computed across several spectral bands. This paper is concerned with land cover mapping in Mosul, Iraq, based on satellite images captured by Sentinel-2. Two platforms featuring unsupervised classification algorithms were used, Google Earth Engine and ArcMap, making it possible to use K-means and X-means in Google Earth Engine and ISO …

Bioerosion And Encrustation As Paleoenvironmental Indicators In Upper Cretaceous Corals, Aruma Formation, Saudi Arabia, Abdelbaset S. El-Sorogy, Huriye Demi̇rcan, Khaled Al-Kahtany, Taisser Zumlot, Talal Alharbi, Mohamed Tawfik

Turkish Journal of Earth Sciences

This study documents and interprets bioerosion and encrustation traces on Upper Cretaceous scleractinian corals from the Hajajah Member of the Aruma Formation in northern Khashm Buwaibiyat, central Saudi Arabia. Fieldwork in 2023 and 2024 involved detailed bed-by-bed stratigraphic logging, ichnological assessment, and fossil collection across marl and limestone units. A total of 213 coral specimens with bioerosional features were analyzed, leading to the identification of 10 ichnospecies across 5 ichnogenera, including Gastrochaenolites, Entobia, Caulostrepsis, Rogerella, and Labyrintichnus. These traces reflect a range of ethological categories, primarily domichnia, indicating permanent dwelling structures by polychaetes, sponges, bivalves, barnacles, and crustaceans. The Hajajah …

Comprehensive Evaluation Of Co₂ Eor Numerical Modeling In The Clinton Sandstone Of The Appalachian Tri-State Region Using Compositional Reservoir Simulation (Cmg Gem), Bushra Aref Alqattan

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

The Clinton Sandstone of the Appalachian Basin represents a mature hydrocarbon-producing formation with potential for carbon dioxide (CO₂) enhanced oil recovery (EOR). This study develops a compositional reservoir simulation model using the CMG software suite (WinProp, Builder, and GEM) to evaluate the performance of CO₂ injection in improving oil recovery within the Clinton formation.

A three-dimensional reservoir model was constructed using representative geological and petrophysical properties consistent with those of the Clinton Sandstone. Fluid behavior was modeled using a compositional equation-of-state (EOS) approach to accurately capture phase behavior, miscibility development, and CO₂–oil interactions under reservoir conditions. Injection scenarios were …

Structural Framework And Tectonic Implications From Field Investigations In The Ramelau Mountains, Timor-Leste, Tanner A. Nielsen

Theses and Dissertations

Recent advances in petroleum exploration off the southern coast of Timor-Leste and emerging mineral discoveries onshore have underscored the need for a more comprehensive structural understanding of the nation's geology. Although new structural models have been proposed for other parts of Timor, limited progress has been made toward developing detailed models for the Ramelau Mountains, which presents the highest structural relief of the Timor Ranges. Previous mapping in this area has been largely reconnaissance in nature and focused primarily on surface bedrock geology. This study presents a new 1:62,500-scale geologic map and a geometric structural analysis of the Ramelau region …

For 600,000 New Yorkers, Toxins Are In Their Tap Water: A New York Focus Analysis Of State Inspection Data Shows Key Toxins Are In Public Water Systems From Long Island To The Adirondacks, Posing Risks For Cancers And Other Diseases. Millions Are Being Spent To Fix Problems, But Even Well-Planned Efforts Have Faced Delays. Poorer Towns Wonder If They Can Afford To Fix The Problem., Shuchi Shah, Hayden Betts, Aurora Martinez, Rebecca Mccray

Capstones

The story stems from an analysis of New York State data on drinking water contaminants. The state inspection data shows key toxins are in public water systems from Long Island to the Adirondacks, posing risks for cancers and other diseases. Millions are being spent to fix problems, but even well-planned efforts have faced delays. Poorer towns wonder if they can afford to fix the problem.

A Geological And Geochemical Study Of The Philipsburg Mining District, Granite County, Montana, Celine M. Beaucamp

Graduate Theses & Non-Theses

The Philipsburg district, renowned for its rich mining history, has contributed significantly to Montana's mineral production, ranking as the state's second-most productive district. Active from 1865 to the 1980s, it yielded an impressive array of Ag (50-60 million oz), with notable outputs of Au, Zn, Pb, Cu, and battery-grade MnO2. The district features Cordilleran polymetallic veins, some of which are along bedding in Mississippian and Devonian limestone, and others are steeply dipping quartz veins in silicate-rich sedimentary rocks and in the Philipsburg batholith. The veins exhibit a district-wide mineral zonation, marked by Cu- and Ag-rich ores near granite porphyries, with …

The Depositional Environment Of The Triassic Cow Branch Formation, Dan River Basin Of Virginia And North Carolina Through Petrographic Study And Geochemical Analysis, And In Relation To Taphonomic Processes And Vertebrate Morphology, Gina M. Workman

All Graduate Reports and Creative Projects, Fall 2023 to Present

The Upper Triassic Cow Branch Formation of the Dan River Basin, located in southern Virginia and northern North Carolina, has long captivated generations of geoscientists. Since the 1970s, researchers have sought to unravel the mystery surrounding the depositional environment of this ancient lake system. This world-class lagerstätte hosts a diverse assemblage of fossil fauna and flora, with a notable preservation bias toward fossil vertebrates, most prominently the archosauromorph, Tanytrachelos ahynis. The geology of the Cow Branch strata continues to evoke a persistent question: Are these sediments representative of a shallow or deep lake?

I undertook a petrographic and geochemical study …

Correlations Between Geotechnical Parameters And Electrical Resistivity For Limestone At Beni Suef, Egypt, Gihan E. Abdelrahman, Elsayed A. Issawy, Walid I. Hammad, Ahmed A. Moheb

HBRC Journal

This study presents an integrated geotechnical–geophysical investigation of limestone formations in Ezbet Deir El-Hadid, Egypt. The research combines conventional geotechnical testing with two-dimensional (2D) electrical resistivity tomography (ERT) to develop a cost-effective subsurface characterization methodology. Forty-one boreholes (15–30 m depth) provided direct measurements of unconfined compressive strength (q_u) and rock quality designation (RQD), while twenty-five ERT profiles enabled spatial resistivity mapping. Three distinct geological conditions were identified: (1) intact limestone exhibiting resistivity of 21–602 Ω·m, (2) water-saturated zones with reduced resistivity (14–37 Ω·m), and (3) cavities showing higher resistivity (1,038–4,035 Ω·m). An optimized investigation protocol …

Trans-Tensional Chaos In Southeastern Death Valley: Geologic Mapping And Geochronology Of The Miocene China Ranch Beds, California, Sydney Beltran

Electronic Theses and Dissertations Archive

This study investigates the sedimentary record of the Miocene China Ranch beds and structural evolution of the China Ranch Basin (CRB) in southeastern Death Valley, California. Geologic mapping and geochronological studies of the China Ranch beds document progressive sedimentary fill of a transtensional basin developed at the tectonic intersection of several strike- slip faults, including the right-lateral Sheephead and Grandview fault zones, and several left- lateral fault zones. New and existing geochronology from 40Ar/39Ar of plagioclase from volcanicash beds, and new detrital zircon U-Pb analysis of volcaniclastic sandstones constrain the depositional history of the China Ranch basin from approximately <11.2 Ma to >6.8 …

Hydrogen, Single-Carbon Compounds, And Thermal Regime In The Oceanic Ultramafic-Dominated Lithosphere: Insights From A Deep Borehole On The Atlantis Massif, Susan Q. Lang, C. Geoffrey Wheat, Kristin L. Dickerson, Mark K. Reagan, Ivan P. Savov, Jordyn A. Robare, William J. Brazelton, Johanna Suhonen, Oscar Cavazos, Andrew Mccaig, Peter Blum, Natsue Abe, Rémi Coltat, Jeremy R. Deans, Marguerite Godard, Barbara E. John, Frieder Klein, Rebecca Kuehn, Kuan Yu Lin, C. Johan Lissenberg, Haiyang Liu, Ethan L. Lopes, Toshio Nozaka, William Osborne, Andrew J. Parsons, Vamdev Pathak, Jessica Rodgers, Jeffrey S. Seewald, Kenneth W. Sims, Gordon Southam

School of Geography, Earth and Environmental Sciences

Water that flows through permeable ultramafic rocks produces high abundances of molecular hydrogen (H₂), methane (CH₄), and other small organic molecules. Such products can fuel life in the rocky subseafloor, be extracted for energy, and may have played a role in pre-biological chemical synthesis on early Earth or other planetary bodies. The International Ocean Discovery Program drilled a new 1268-m-deep borehole (U1601C) into serpentinized mantle with minor gabbroic rocks on the Atlantis Massif, ∼800-m north of the Lost City hydrothermal field (30°N, Mid-Atlantic Ridge). Measured temperatures of the disturbed borehole reached 91.3 °C, and equilibrated temperatures …

Monitoring Slope Displacements At The Kalmakyr Open-Pit Mine Using Gnss And Gamit/Globk Processing, Aziz Nigmanovich Kazakov, Dilbarkhon Hamuradovna Fazilova, Nursulton Abdulmajit Ugli Khamitov

Technical science and innovation

The article presents a monitoring system based on the Global Navigation Satellite System (GNSS) for assessing deformations in mining areas. The study was conducted at the Kalmakyr open-pit mine, where a network of seven GNSS stations was installed in the most geologically vulnerable zones. Four static measurement cycles were carried out between 2024 and 2025. High-frequency 3D data were processed using the GAMIT/GLOBK software. The analysis showed that displacements in active areas reached 68 mm horizontally and 31 mm vertically.

Integrating Satellite Observations And Modeling Approaches To Study Tectonic And Land Surface Hazards, Jeng Hann Chong

Earth and Planetary Sciences ETDs

The increasing availability of Earth observation satellites, such as SAR and optical platforms, has improved our ability to study the ground deformation processes during, after, and leading up to these natural hazards, such as earthquakes and debris flows. In this dissertation, I analyze satellite geodetic interseismic velocities across the Rakhine-Bangladesh megathrust and the influence of having realistic modeling assumptions for subduction zones to better constrain seismic hazard. I also examined changes in post-fire debris flow likelihood four years after the 2020 Lake Fire in Southern California using a suite of satellite data and field observations. Together, these studies highlight how …

An Estimation Study Of The Co2 Emissions In Saudi Arabia Using Machine Learning, Mohammed A. Albalawi, M.M. El-Halwany, Mahmoud H. Mahmoud, Mohamed Gar Alalm

Mansoura Engineering Journal

As part of the 2015 Paris Climate Agreement, the Kingdom of Saudi Arabia (KSA) pledged to implement policies aimed at reducing greenhouse gas emissions. The 2030 Vision, which KSA unveiled with the goal of building a more sustainable and diverse economy, led to a number of projects, such as the national renewable energy program, the Saudi green initiative, and the circular carbon economy. Additionally, KSA just revealed a bold plan to achieve net-zero status by 2060. The Kingdom pledged to cut its carbon emissions by 278 million tons of CO2eq (equivalent) yearly by 2030 in its revised nationally determined contribution …

The Shorthorn: November 23, 1977

The Shorthorn Newspaper Collection: 1970s

No abstract provided.

The Shorthorn: March 23, 1977

The Shorthorn Newspaper Collection: 1970s

No abstract provided.

Mechanisms Of Gold Enrichment In Seafloor Massive Sulfide Deposits: A Study On The Higashi-Aogashima Hydrothermal Field, Claudia Martinez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The study of Seafloor Massive Sulfides (SMS) deposit formation is vital for assessing both the economic potential and environmental risks posed by future marine mining projects. Metal-rich SMS deposits form in hydrothermal vent systems within tectonically active regions, such as back-arc basins, where faults enhance crustal permeability, enabling fluid migration driven by magmatic heat sources at depth in the crust. Currently our understanding of SMS formation processes is based on bulk-rock geochemical and isotopic data, lacking the necessary spatial and temporal resolution to understand ore forming processes. As a result, critical gaps remain in understanding the exact mechanisms responsible for …

Water Management System To Mitigate Flood Hazard And Facing Water Scarcity In Sinai Peninsula, Abdalla Ashraf Farouk

COP30

Water scarcity is a global problem that threatens our life on Earth. Unfortunately, this problem becomes more serious over time. Moreover, climate change makes this problem more serious than before. According to the Fifth Assessment Report by the Intergovernmental Panel on Climate Change (IPCC), around 80% of the global population will experience water scarcity by 2050, and around 1.8 billion people will be living in regions suffering from water scarcity. This threat to human beings becomes closer to us than ever before due to the increase in population and the immense negative impact of climate change. Especially in arid and …

Developmental Pattern Of Water Flowing Fractured Zones In The Soil-Bedrock-Type Overburden And Water-Controlled Mining Strategy Under A Super-Large Mining Height, Zhang Yujun, Hua Zhaolai, Song Yejie, Hu Haoyu, Li Jiawei

Coal Geology & Exploration

Background The heights of water flowing fractured zones represent a key concern in the prevention and control of water disasters occurring in mining face roofs and water resource protection of coal mines. Varying lithologies and structures of the overburden are identified as primary factors governing the height and characteristic differences of water flowing fractured zones. Methods Against the engineering background of a mining face with 10 m super-large mining height in the Caojiatan Coal Mine of Shaanxi Province, this study investigated the differences in the mining-induced responses of the soil-bedrock-type overburden using numerical simulations of stress-seepage coupling and measured heights …

Deformation And Earthquake Potential On The North America - Caribbean - Cocos Triple Junction In Guatemala, Jeremy Maurer, Andreas Eckert, Qiaoqi Sun, Jonathan Obrist-Farner

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The triple junction between the Cocos (CO), North American (NA), and Caribbean (CA) tectonic plates in Guatemala is a region of high seismic risk and includes many large faults and historic earthquakes. Previous analyses of the tectonic system have been overly simplified, resulting in discrepancies between geologically derived and geodetic models of fault slip rate. This study leverages available geodetic, seismic, and geologic data to develop new strain rate maps and faulting models for the region. We find that locking on the regional faults matches historic reports of large earthquakes and that multiple minor fault segments are active and accommodate …

U-Pb Calcite Geochronology, Epr, Geochemistry, And C-O-Sr Isotopes Of Ancient Marbles In The İznik Region (Bursa-Türkiye), Namik Aysal, Özge Karslioğlu, Emre Erdem, Marcel Guillong, Si̇nan Öngen, İbrahi̇m Tonguç Uysal, Ersi̇n Kaygisiz, İpek Deni̇z Yildirim

Turkish Journal of Earth Sciences

The İznik city (ancient Nicaea), located east of Lake İznik (known as -“Bithynia” in ancient times), has been an important political and cultural centre of Asia Minor since the Hellenistic period. Marbles produced in the quarries in the vicinity (Ömerli and İnikli villages, Deliktaş-Sarıtaş hills) were used both in the construction of the walls and in many ancient works in the city. Approximately eighteen ancient marble quarries producing grey and white marbles were investigated in the region. Petrography, EPR, XRD, C-O-Sr isotope and whole rock geochemistry analyses were performed for characterization of the samples collected from the quarries for the …