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Discovery Of A New Breeding Site For The Endangered Japanese Murrelet Synthliboramphus Wumizusume In Nagasaki, Japan, Noriyuki M. Yamaguchi, Takayasu Amano, Tomomi Kimura, Ryu-Ichi Mine, Emi Yamaguchi, Toru Nakahara Jul 2025

Discovery Of A New Breeding Site For The Endangered Japanese Murrelet Synthliboramphus Wumizusume In Nagasaki, Japan, Noriyuki M. Yamaguchi, Takayasu Amano, Tomomi Kimura, Ryu-Ichi Mine, Emi Yamaguchi, Toru Nakahara

Marine Ornithology

We report a breeding site for the Japanese Murrelet Synthliboramphus wumizusume discovered for the first time in March 2023 on Hahakojima (Hakoshima), a small island in Nagasaki City, Nagasaki Prefecture, off Kyushu, Japan. We counted 129 Japanese Murrelets among at-sea congregations during spotlight surveys around Hahakojima. This provided strong evidence that murrelets were breeding on the island. During a brief search of Hahakojima, we discovered 18 nests in rock crevices. Seven of these nests included incubating adults and 11 nests contained unattended eggs. We also found 22 broken eggs in open areas and observed a Large-billed Crow Corvus macrorhynchos carrying …

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Automated Grain-Matrix Segmentation In Photomicrographs Of Clastic Sedimentary Rocks Using Neuro-Visual Algorithms, Rajdeep Das Jun 2025

Automated Grain-Matrix Segmentation In Photomicrographs Of Clastic Sedimentary Rocks Using Neuro-Visual Algorithms, Rajdeep Das

Doctoral Theses

Sediments and sedimentary rocks, covering almost sixty-five percent of exposed earth’s surface, contain features that allow us to interpret ancient depositional environments, and their role in the evolution of life on earth. Study of sedimentary rocks is also relevant to exploration of geo-economic resources including petroleum, ore minerals, and groundwater as well as research in environmental geology, anthropological studies, and the bi-directional relation of man and environment. One of the important and crucial steps in this study of the detrital sedimentary rocks like sandstone, is to know the size and shape of the grains/clasts (fragments of different minerals or rocks), …

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Siliciclastic Cave Or Diamond Mine? Multiapproach Investigation In Igatu Village, Chapada Diamantina, Northeastern Brazil, Raphael Parra, Ricardo G. F. De A. Pereira, Leonardo F. Vieira, Rubson P. Maia Jun 2025

Siliciclastic Cave Or Diamond Mine? Multiapproach Investigation In Igatu Village, Chapada Diamantina, Northeastern Brazil, Raphael Parra, Ricardo G. F. De A. Pereira, Leonardo F. Vieira, Rubson P. Maia

International Journal of Speleology

The territory around Igatu, as that of many villages in southeastern Chapada Diamantina (Bahia, Brazil), was deeply modified by diamond mine activity. Caves were special targets for miners, since they can act as diamond-bearing sediment traps, and the Canal da Fumaça Cave was one of the most important and rich of them. The question that arises is whether the formation is a natural cave or an artificial diamond mine. In order to answer this question, we developed speleological and geological studies with detailed cave surveys, remote sensing and field measurements for structural analysis, optical and electronic microscope for petrographic characterization, …

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Glacial Lakes Segmentation Using Multispectral Remote Sensing Data And Deep Learning Models, Debankan Das Jun 2025

Glacial Lakes Segmentation Using Multispectral Remote Sensing Data And Deep Learning Models, Debankan Das

Master’s Dissertations

The identification and delineation of glacial lakes through segmentation is crucial for tracking glacial changes and evaluating potential dangers from sudden flood events (GLOFs). These floods can severely impact populated areas and man-made structures downstream. Recent advances in high-quality satellite imagery have sparked increased attention toward using advanced machine learning methods, particularly deep learning, to enable precise and automated glacial lake detection. In this study, we explore the effectiveness of deep learning-based pointwise semantic segmentation for glacial lake mapping using multisource remote sensing imagery, including both optical and synthetic aperture radar (SAR) data. We experiment with a novel stack combination …

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Apatite Chemistry From The Xv Ioa Deposit, The Bafq–Saqand Metallogenic Province (Bsmp), Central Iran: Constrains On The Genesis Of Ioa Deposits, Sakine Amraei, Majid Ghasemi Siani, Mohammad Yazdi, Liang Qiu, Chang–Zhi Wu, Minghua Ren, Shahrokh Rajabpour May 2025

Apatite Chemistry From The Xv Ioa Deposit, The Bafq–Saqand Metallogenic Province (Bsmp), Central Iran: Constrains On The Genesis Of Ioa Deposits, Sakine Amraei, Majid Ghasemi Siani, Mohammad Yazdi, Liang Qiu, Chang–Zhi Wu, Minghua Ren, Shahrokh Rajabpour

Turkish Journal of Earth Sciences

In this study, we present petrographical and microanalytical (EPMA, LA–ICP–MS) results of apatites associated with Fe–Ti±P mineralization in the XV deposit in the BSMP. Apatite is predominantly observed as subhedral to euhedral, homogeneous grains, with no zoning or inclusions. Geochemically, apatite is fluorapatite of magmatic origin, with Cl/OH and Cl/F ratios of <0.05 and 0.01 to 0.07, respectively. Apatites from XV and other IOA deposits in the BSMP display a high F/Cl ratio, which is likely the main characteristic of IOA–type deposits such as the Kiruna-type deposit. Apatites from both rock types (gabbro and pyroxenite) exhibit similar rare earth elements (REEs) and multitrace element patterns, indicative of a shared origin. The highly light rare earth elements (LREEs)–enriched pattern in chondrite–normalized fractionation trends, along with positive Eu and slight negative Ce anomalies, as well the high (La/Sm)N and (La/Yb)N ratios of XV apatite, further corroborates the magmatic genesis of fluorapatite. The Eu/Eu* and Ce/Ce* ratios in XV rocks imply a high oxidation condition, as well as other IOA deposits in BSMP. The sulfur content is less than 1 wt% and shows a positive correlation with SiO2, implying coupled dissolution–reprecipitation of primary fluorapatite. Considering the geological setting of XV and other IOA deposits in the BSMP, the parental magma(s) appear to have originated from oxidizing Fe-Ti±P-rich magma(s), likely formed within an extensional postcollisional setting, influenced by the Proto–Tethys and Central Iranian Microcontinent (CIMC) convergence events.

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Hyperspectral Remote Sensing Of Potential Mineral Resources At Elephant Mountain, Interior Alaska, Khawaja Ahad Javed May 2025

Hyperspectral Remote Sensing Of Potential Mineral Resources At Elephant Mountain, Interior Alaska, Khawaja Ahad Javed

Geosciences

This study explores the application of hyperspectral remote sensing for mineral mapping purposes at Elephant Mountain, Interior Alaska, focusing on airborne and laboratory-based spectroscopic techniques. Hyperspectral imaging (HSI) was conducted using the HySpex imaging system, acquiring airborne hyperspectral imagery over an area of proven mineral resources. The research aimed to evaluate the effectiveness of HSI in identifying alteration minerals, considering the impact of spatial resolution, sensor altitude, and spatial resampling on mineral detection accuracy. A spectral feature-fitting algorithm within the USGS-developed PRISM software was employed to compare airborne-derived spectra with USGS spectral library standards. Laboratorybased spectrometric analyses of rock samples …

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Earth Analogue Analysis Of Volcanic/Tectonic Interactions With Applications To Venusian Stresses, Michael Ortigoza May 2025

Earth Analogue Analysis Of Volcanic/Tectonic Interactions With Applications To Venusian Stresses, Michael Ortigoza

Theses and Dissertations

Venus shares many geological similarities with Earth, yet its tectonic processes and magma injection mechanisms remain poorly understood. A key question in planetary geology is how effusive volcanism persists despite the intense horizontal compression terrestrial bodies experience over time. To explore these issues, we examine the Spanish Peaks dike swarm in Colorado which serves as an ideal site for investigating magma intrusion under compressive stress conditions. Through field mapping, orientation measurements, and structural analysis, we identify a strong relationship between pre-existing joints and dike orientations, suggesting that these fractures serve as critical magma pathways in compressive regimes. Additionally, evidence of …

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Investigating The Impact Of Waterhead, Time And Temperature On Dam Displacement: Application Of Computer Aided Models, Maaz Abdullah Apr 2025

Investigating The Impact Of Waterhead, Time And Temperature On Dam Displacement: Application Of Computer Aided Models, Maaz Abdullah

AUIQ Technical Engineering Science

Dam displacement is a crucial indicator for assessing the safety of a concrete dam through structural health monitoring. Since the displacement data exhibits a non-linear and complex relationship with influencing factors like waterhead, time and temperature, machine learning models are deployed to accurately predict dam displacement. Furthermore, the limited availability of monitored data in the majority of the dams renders the studies conducted with a large number of observations valueless. In order to address the aforementioned issues, this study proposes a feature selection approach to predict dam displacement by examining the ability of four ensemble machine learning models on different …

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Negligence Of Geological Investigations Site Leading To Slope Failure Incidents: A Case Study From Saih Al Ahmar In Bidbid, Northern Oman, Talal Al-Hosni, Sobhi Nasir Apr 2025

Negligence Of Geological Investigations Site Leading To Slope Failure Incidents: A Case Study From Saih Al Ahmar In Bidbid, Northern Oman, Talal Al-Hosni, Sobhi Nasir

Sultan Qaboos University Journal For Science

This paper describes and analyzes a recent slope failure alongside Saih Al Ahmar water storage tank in Bidbid, and identifies the natural and induced causes of the landslide. Our analysis demonstrates that the landslide in Bidbid was the result of several combined factors: slope-forming materials, distribution of geological discontinuities and disturbance by human activities. Moreover, field observations, satellite imagery and geology of the study area indicate that the major factors which caused the landslide are the steep slope excavation along the developed tensional faults, the material in the slide ranging from talus deposits to interlayered peridotite and gabbro, cutting perpendicular …

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Engineering Properties Of Umm Er Radhuma Limestone, Southeast Ataq, Yemen, Ibrahim A. Al-Akhaly, Abdelmonem M. Habtoor Apr 2025

Engineering Properties Of Umm Er Radhuma Limestone, Southeast Ataq, Yemen, Ibrahim A. Al-Akhaly, Abdelmonem M. Habtoor

Sultan Qaboos University Journal For Science

Limestone in southeast Ataq, Shabwah governorate in Yemen was studied to assess its engineering properties to ensure their compliance with the minimum construction requirements. This limestone is widely used as building stone in this area. Six different sites were selected for sampling appropriate limestone rock for building stone. 42 representative samples were collected and tested for water content, water absorption, dry density, saturated density, specific gravity, porosity, void ratio, and uniaxial compressive strength to ensure their suitability for use in the production of dimension stone. Tensile strength and elastic modulus were estimated. Their low water absorption, density and porosity values …

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Radiometric Surveys For Detection Of Uranium In Dhofar Region, Sultanate Of Oman, Narasimman Sundararajan, Bernhard Pracejus, Salah Al-Khirbash, Talal Al-Hosni, Ala Ebrahimi Ebrahimi, Ali Al-Lazki, Musallam Al-Mushani Apr 2025

Radiometric Surveys For Detection Of Uranium In Dhofar Region, Sultanate Of Oman, Narasimman Sundararajan, Bernhard Pracejus, Salah Al-Khirbash, Talal Al-Hosni, Ala Ebrahimi Ebrahimi, Ali Al-Lazki, Musallam Al-Mushani

Sultan Qaboos University Journal For Science

The Proterozoic basement of the Dhofar region of the Sultanate of Oman might be considered as a potential source of Uranium mineralization like other Proterozoic basins of the world, which collectively contribute 30%-40% to the global production. Uranium exploration assumes great importance in this part of the world and therefore geochemical and geophysical exploration for Uranium was initiated. Initial, random sampling of the study area with Gamma ray spectrometry as well as in situ XRF (Xray Florescence) analysis indicated the presence of around 30-40 ppm of Uranium. Since Gamma ray spectrometry results in the calculation of the heat produced during …

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Engineering Properties Of Volcanic Tuff From The Western Part Of Yemen, Adnan A. Barahim, Ibrahim A. Al-Akhaly, Is'haq R. Shamsan Apr 2025

Engineering Properties Of Volcanic Tuff From The Western Part Of Yemen, Adnan A. Barahim, Ibrahim A. Al-Akhaly, Is'haq R. Shamsan

Sultan Qaboos University Journal For Science

This paper deals with a study of the physical and mechanical characteristics of volcanic tuff and ignimbrite from six quarries located at different areas in the western part of Yemen (Manakha, Jahran, Bakhran, Dar Al-Hanash, Abaser and Soraifa). In the region, volcanic tuffs and ignimbrite are locally known by their location names and have been used as solid masonry and cladding stones. All the investigated pyroclastic rocks belong to the Tertiary volcanic. The standard physical and mechanical tests (void ratio, porosity, density, specific gravity, water absorption, uniaxial compressive strength and tensile strength) were carried out on the tuff and ignimbrite …

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Recognition Of Minerals Using Multispectral Remote Sensing Data: A Case Study In The Sultanate Of Oman, Sankaran Rajendran, Sobhi Nasir Apr 2025

Recognition Of Minerals Using Multispectral Remote Sensing Data: A Case Study In The Sultanate Of Oman, Sankaran Rajendran, Sobhi Nasir

Sultan Qaboos University Journal For Science

The present study demonstrates the capability of a multispectral sensor for the detection of the minerals in the rocks surrounding the Rusayl and Al Jafnayn regions, Sultanate of Oman. The study of spectral absorptions of rocks and minerals in the visible and near infrared (VNIR) and short wavelength infrared (SWIR) spectral bands of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) using the Spectral Angle Mapper (SAM) supervised image classification technique has provided information on the occurrence of minerals in the rock types of the regions. The study shows the occurrence of carbonate minerals in the limestone formations and …

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Key Technologies For Surface Control Of Gas Dynamic Disasters In Coal Mines And Their Application, Wang Bo, Xu Fengyin, Liu Wenge, Shao Sihua, Wang Ning, Wen Jiandong, Cheng Guoxi, Qu Zhenghui, Xie Yadong, Han Jiaye, Li Zhi, Xu Bo, Yang Weihua, Zhang Yiteng, Li Changxing Apr 2025

Key Technologies For Surface Control Of Gas Dynamic Disasters In Coal Mines And Their Application, Wang Bo, Xu Fengyin, Liu Wenge, Shao Sihua, Wang Ning, Wen Jiandong, Cheng Guoxi, Qu Zhenghui, Xie Yadong, Han Jiaye, Li Zhi, Xu Bo, Yang Weihua, Zhang Yiteng, Li Changxing

Coal Geology & Exploration

Objective and Significance As the coal mining depth increases, coal mining faces increasingly prominent challenges including coal and gas outbursts, rock bursts, and compound dynamic disasters. Deepening the understanding of disaster-causing mechanisms and developing diversified prevention and control technologies are significant for the safe production of coal mines. Employing the key technologies for coalbed methane (CBM) production to control gas-related dynamic disasters is an inevitable course for the safe production of coal mines. However, large-scale, suitable technology systems are yet to be developed. Methods From the perspective of the application of key technologies for surface CBM production, this study systematically …

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Memoria Teneo, Richard Bertram Peterson Apr 2025

Memoria Teneo, Richard Bertram Peterson

Bryant Literary Review

No abstract provided.

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Technological Study Of The Ceramic Assemblage From Nevé Yaraq, Lod, Yuval Goren Apr 2025

Technological Study Of The Ceramic Assemblage From Nevé Yaraq, Lod, Yuval Goren

'Atiqot

No abstract provided.

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Durability And Steel Corrosion Resistance Of Fly Ash Concrete Exposed To Groundwater, Mohamed Ahmed Bayomy, Khaled M. Osman, Hala Emad Elden Fouad Apr 2025

Durability And Steel Corrosion Resistance Of Fly Ash Concrete Exposed To Groundwater, Mohamed Ahmed Bayomy, Khaled M. Osman, Hala Emad Elden Fouad

Mansoura Engineering Journal

This article proposes replacing Ordinary Portland Cement (OPC) with a fly ash (FA)-based geopolymer (GP) material, activated by a chemical activator, as the binding material. A 90-day study was conducted to evaluate the performance of fly ash geopolymer concrete (GPC) in a corrosive environment (groundwater). Scanning electron microscopy (SEM), compression testing, and energy-dispersive X-ray spectroscopy (EDX) were used to assess the toughness of the samples. Additionally, the linear polarization resistance (LPR) method was employed to measure the corrosion of steel embedded in the concrete structures. The comparison shows that increasing the fly ash (FA) content in geopolymer concrete (GPC) enhances …

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A Dual Perspective On Fault Mechanics: Insights From Laboratory Acoustic Emissions And Induced Seismicity, Roshan Koirala Apr 2025

A Dual Perspective On Fault Mechanics: Insights From Laboratory Acoustic Emissions And Induced Seismicity, Roshan Koirala

Electronic Theses and Dissertations Archive

Earthquakes occur across multiple spatial scales depending on fault zone characteristics and mechanics. Fault failure, the mechanism responsible for earthquakes, is driven by the complex interaction of stress, material properties, fault structure, and fluids. Understanding how these factors impact fault stability is key to seismic hazard assessment. Seismological observations provide crucial information about fault mechanics. However, directly measuring the influence of fault properties on earthquake nucleation and fault rupture remains a significant challenge. This dissertation investigates the multi-scale processes of earthquake nucleation and fault failure. This involves integrating high-precision locations of acoustic emission events (AEs) in laboratory fault gouge experiments …

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Baobab Beach Profile: Erosion Of North-Northeast Misali Island, Elizabeth Waterfall Apr 2025

Baobab Beach Profile: Erosion Of North-Northeast Misali Island, Elizabeth Waterfall

Tanzania-Zanzibar: Coastal Ecology and Natural Resource Management

This study investigates the patterns and drivers of coastal erosion on Misali Island,located off the coast of Pemba Island in the Zanzibar Archipelago. Fieldwork was conducted over a 28-day period, focusing on four beachfront locations along Baobab Beach. Measurements included strike and dip, beach crest-to-toe distance (m), beach step height (cm), sand composition and sand color, velocity, coral composition, and a rate of sediment accumulated per day. These data, combined with qualitative observations, reveal spatial variability in sediment deposition and erosion severity across the island’s coastline. Results suggest that reduced coral cover and increased exposure to wave energy are contributing …

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The Shorthorn: December 14, 1937 Mar 2025

The Shorthorn: December 14, 1937

The Shorthorn Newspaper Collection: 1930s

No abstract provided.

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New Petrographic And Geochemical Constraints On Pre-Eruptive Storage Conditions And Their Control On Eruptive Styles In Martinique’S Recent Volcanic Systems, Abigail Martens Mar 2025

New Petrographic And Geochemical Constraints On Pre-Eruptive Storage Conditions And Their Control On Eruptive Styles In Martinique’S Recent Volcanic Systems, Abigail Martens

USF Tampa Graduate Theses and Dissertations

This dissertation investigates the volcanic systems of Martinique Island, focusing on magma storage conditions, magmatic evolution, and eruption dynamics. Chapter 3 presents a petrographic analysis of volcanic rocks from the island’s old, intermediate, and recent arcs, examining the evolution of plagioclase textures and the increasing abundance of other mineral phases, such as pyroxene, amphibole, olivine, and quartz, which provide insights into changing magmatic conditions. The main research is divided into two projects. Chapter 4 addresses the pre-eruptive storage conditions (pressure and temperature) of magmas beneath recent (<5 Ma) volcanic complexes (Morne Jacob, Piton du Carbet, Trois Îlets, Mt. Conil, and Mt. Pelée), exploring magma evolution, crystallization, and the role of lower crustal injections and flank collapses in triggering eruptions. Results reveal variable magma storage depths (<6 km), with significant temperature and pressure variations, indicating complex magmatic systems. Chapter 5 focuses on the Roches-Genty ignimbrite in southwestern Martinique, investigating its stratigraphy, geochemistry, and age using field mapping, grain size analysis, and 40Ar/39Ar dating. The study identifies two distinct sub-Plinian eruptive phases associated with the Dizac ignimbrite, with ages of 3.37 ± 0.14 Ma and 2.10 ± 0.26 Ma, providing insights into past explosive volcanic activity. Geochemical analysis confirms an andesitic composition, similar to regional volcanic systems. This dissertation enhances understanding of Martinique’s volcanic history, providing valuable insights into magmatic processes and eruption dynamics, with implications for volcanic hazard assessments in the Lesser Antilles.

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Geological Technological Innovations And Contributions In The Exploration And Development Of The Shenfu Coalfield, Fan Limin Mar 2025

Geological Technological Innovations And Contributions In The Exploration And Development Of The Shenfu Coalfield, Fan Limin

Coal Geology & Exploration

Background The discovery and exploration of the Shenfu coalfield (i.e., a Jurassic coalfield in northern Shaanxi Province) represent the most significant achievement in China’s coal industry during the 6th Five-Year Plan of the country, marking the onset of the strategic westward shift of China’s coal industry. The complex discovery and exploration processes of the Shenfu coalfield have yielded valuable technological innovations. A summary of advances in the geological exploration and research of this coalfield will provide significant implications and references for the geologic work and green development of major coal-producing areas in West China. Advances First, research on the coal …

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Proof Of Concept: Using Uas Technology To Accomplish Aerial Roof Inspections, Madison R. Fanning Mar 2025

Proof Of Concept: Using Uas Technology To Accomplish Aerial Roof Inspections, Madison R. Fanning

Theses and Dissertations

With the growing use of simulation across industries, the digital twin remains an underexplored research area, particularly in emergency management and response. Its real-time updating capability is often overlooked due to the misconception that "digital twin" is merely a complex term for simulation. This paper highlights its distinctiveness through an evasion exercise involving two independent entities in a collocated environment. Using a highly integrated virtual environment (HIVE) and internet of things (IoT) devices, we link the physical system with an analytical simulation, demonstrating the impact of lag times in high-pressure scenarios. The computational model leverages agent-based modeling (ABM) and discrete-event …

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Geological-Engineering Integrated Reconnaissance Survey Technology For Skylights As A Hidden Disaster-Causing Factor, Dong Mintao Feb 2025

Geological-Engineering Integrated Reconnaissance Survey Technology For Skylights As A Hidden Disaster-Causing Factor, Dong Mintao

Coal Geology & Exploration

Objective Skylights represent a primary hidden disaster factor in mines in the southern Yushen mining area within the Shanbei Jurassic coalfield, Shaanxi Province. Since they are hidden and difficult to detect, their distribution in the mining area remains unclear, posing pronounced safety hazards. This necessitates developing effective technical means to overcome challenges in the spatial exploration of skylights and ensure mine safety. Methods Focusing on a typical mine in the Yushen mining area as an example, this study explored the spatial distribution characteristics and types of skylights in the study area using the geological-engineering integrated reconnaissance survey technology that combines …

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Easternmost Limit Of Sevier Orogeny, East-Central Utah Revisited, Kenneth R. Neuhauser Feb 2025

Easternmost Limit Of Sevier Orogeny, East-Central Utah Revisited, Kenneth R. Neuhauser

SACAD: Scholarly Activities

Integrative field mapping combined with published and unpublished seismic profiles, support an inferred, easternmost limit of Sevier thrusting during Late Cretaceous foreland deformation in east-central Utah. East-verging thrust faults, drag folds, and chatter marks within Jurassic and Late-Cretaceous exposures at Ketobe Knob along the western margin of Cedar Mountain in the northwestern and central parts of the San Rafael Swell and within the western zone of the Colorado Plateau provide evidence for a more easterly expression of the Sevier Thrust Front. Offset is accomplished by bedding-parallel slippage along less competent shales and siltstones and by oblique ramping across more competent …

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Characterization Of Stone Materials From The Roman Caracalla Bath In Ancyra, Zeynep Tanriverdi̇, Ali̇ Akin Akyol, Yusuf Kağan Kadioğlu Feb 2025

Characterization Of Stone Materials From The Roman Caracalla Bath In Ancyra, Zeynep Tanriverdi̇, Ali̇ Akin Akyol, Yusuf Kağan Kadioğlu

Turkish Journal of Earth Sciences

The Roman Caracalla Bath was built during the reign of Roman Emperor Caracalla (circa AD 200). Today it exists only inthe form of wall remnants at the foundation level and functions as an open-air museum. It is located on a mound approximately 2.5-mhigh along Ulus’s Çankırı Street in Ankara. This research paper aims to identify the characterization and implications for provenance ofthe stone materials used in the construction of the bath by using mineralogical, petrographic, and geochemical definitions. The resultsobtained from the stone materials also provide guidance for restoration and reinforcement of the bath. In this study, the 13 stone …

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We Know About The Right To Bear Arms, But What About The Rights Of Bears Ears, Brandon Andrews Feb 2025

We Know About The Right To Bear Arms, But What About The Rights Of Bears Ears, Brandon Andrews

LSU Journal of Energy Law and Resources

No abstract provided.

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Techno-Economic Analysis For Floating Offshore Wind And Offshore Green Hydrogen, David Pegler, Deborah Greaves, Robert Rawlinson-Smith, Simone Michele, Daniel Conley, James Benhin Feb 2025

Techno-Economic Analysis For Floating Offshore Wind And Offshore Green Hydrogen, David Pegler, Deborah Greaves, Robert Rawlinson-Smith, Simone Michele, Daniel Conley, James Benhin

School of Engineering, Computing and Mathematics

This paper describes a techno-economic model for exploiting the Celtic Sea wind resource through direct productionof hydrogen offshore. The model conceives a modular approach with eight 510 MW floating windfarms,each with an electrolyser system and export compressor mounted on a jacket. The model ensures an uninterruptedhydrogen supply to an industrial cluster (16.4 te.H2/h) by incorporating salt cavern hydrogen storage.During periods of no power generation, baseload power is provided from hydrogen fuel cells. The base-casemodel with a Discount Rate of 6% returned an Levelised Cost of Hydrogen (LCoH) of £7.25 per kg of hydrogen in2023. The LCoH shows strong sensitivity to …

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Petrographic Analysis Of The Tel Mikhal (Tel Michal) Pottery (Pp. 57–65), Amir Gorzalczany Feb 2025

Petrographic Analysis Of The Tel Mikhal (Tel Michal) Pottery (Pp. 57–65), Amir Gorzalczany

'Atiqot

Thirty-six vessels were submitted for petrographic analysis, most of them from the Persian period and several from Middle Bronze Age II. Several wasters from the kilns were analyzed as well. The results point to a large variety of pottery types in the Persian period, which were divided into three main groups: local products; short- to medium-range distance imports; and long-distance imports. These finds parallel those identified at other southern coastal sites, which show an overwhelming amount of imported pottery.

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Geological Characterization Of The Breccia Corallina (Marmor Sagarium) Quarries In Northwest Asia Minor, Murat Yilmaz, Hakan Elçi̇, Serdar Akgündüz, Ati̇ye Tuğrul, Göksel Dursun Jan 2025

Geological Characterization Of The Breccia Corallina (Marmor Sagarium) Quarries In Northwest Asia Minor, Murat Yilmaz, Hakan Elçi̇, Serdar Akgündüz, Ati̇ye Tuğrul, Göksel Dursun

Turkish Journal of Earth Sciences

The province of Bilecik is one of the leading block stone production regions in Northwest Asia Minor, where natural stone quarrying has been carried out since ancient times. Natural stones with different patterns have been produced in the block stone quarries in this region. The natural stones produced from this region were used in Italy and Istanbul during the Roman period and in the construction of many historical buildings in Istanbul during the Ottoman period. The best known of these natural stones is Breccia Corallina (Marmor Sagarium), a brecciated limestone with ivory-colored clasts and coral red cement. In this study, …

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