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Seismites of the Late Triassic Lockatong Formation,Pennsylvania,USA:implications for Newark Basin border fault movement

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Journal of Palaeogeography 2025年第1期14卷 1-14页

作者： Edward L.Simpson Michael C.Wizevich David L.Fillmore department of physical sciences Kutztown University of Pennsylvania department of Earth and Space sciences Central Connecticut State University

Numerous soft-sediment deformation structures(SSDS) within thin-bedded, heterolithic lacustrine shoreline deposits of the Upper Triassic Tumble Falls Member, Lockatong Formation of eastern Pennsylvania, demonstrate liquefaction, fluidization and shearing features processes affecting sediment. This study employs thin-section analysis of SSDS to interpret them as probable seismites from the Triassic-Jurassic Newark Basin. Sedimentary structures include right-lateral offset of desiccation cracks and ichnofossils, thrust,reverse, and normal faults with mm-scale offsets, horsts and grabens, lateral spreads, and single and complex multiple networks of dikes and sills and associated sedimentary volcanoes, thin mudflows on a paleosurface linked to sediment dikes, load and flame structures, ball and pillow structures, recumbent folds, and incipient breccias. Dike fill consists of mudstone, angular sedimentary clasts, sandstone margins with mudstone cores,and plastically deformed sediment fill. The SSDS indicate that Late Triassic lacustrine shoreline sediments were subjected to forces, probably compressive with a minimal shear component reflected in the offset of the dikes and ichnofossils, that induced liquefaction followed by fluidization and vertical movement of *** forces that altered sediment vertical stability, leading to deformation of the sediment included gravitationally unstable density gradients, vertical shear stress, and gravitational body forces. SSDS can be induced by seismic and aseismic processes. However, this unique combination of forces and resulting sedimentary structures indicate an origin by earthquake activity, likely produced by the nearby, active Newark Basin border fault system. The Lockatong Formation SSDS seismites improve our understanding via thin section analysis of the rheology and preservation potential of SSDS in lacustrine shoreline deposits, critical for the geologic history of Newark Basin, as well as the refinement for paleos

关键词： Seismites Triassic Lockatong Formation Lacustrine Soft-sediment deformation structures

The deflection angle and quasi-periodic oscillations of an extended gravitational decoupled black hole solution

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Communications in Theoretical Physics 2025年第2期77卷 132-147页

作者： Farzan Mushtaq Xia Tiecheng Allah Ditta G Mustafa S K Maurya department of Mathematics Shanghai University and Newtouch Center for Mathematics of Shanghai University department of Physics Zhejiang Normal University Research Center of Astrophysics and Cosmology Khazar University department of Mathematical and physical sciences College of Arts and Sciences University of Nizwa

In weak field limits, we compute the deflection angle of a gravitational decoupling extended black hole(BH) solution. We obtained the Gaussian optical curvature by examining the null geodesic equations with the help of Gauss–Bonnet theorem(GBT). We also looked into the deflection angle of light by a black hole in weak field limits with the use of the Gibbons–Werner method. We verify the graphical behavior of the black hole after determining the deflection angle of light. Additionally, in the presence of the plasma medium, we also determine the deflection angle of the light and examine its graphical behavior. Furthermore, we compute the Einstein ring via gravitational decoupling extended black hole solution. We also compute the quasi-periodic oscillations and discuss their graphical behavior.

关键词： deflection of light Gauss-Bonnet theorem gravitational decoupling

Unraveling atomistic and electronic origins of multiaxial magnetic anisotropy

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 175-182页

作者： Boyu Liu Xueyang Li Junsheng Feng Changsong Xu Hongjun Xiang Key Laboratory of Computational physical sciences(Ministry of Education) Institute of Computational Physical SciencesState Key Laboratory of Surface Physics and Department of PhysicsFudan UniversityShanghai200433China Shanghai Qi Zhi Institute Shanghai200030China School of Physics and Material Engineering Hefei Normal UniversityHefei230601China

Multiaxial magnetic anisotropy(MA)refers to the phenomenon that multiple axes of the magnetic crystal correspond to different energy *** with the common uniaxial magnetic anisotropy,multiaxial MA facilitates novel forms of applications in ***,by combining the first-principles-based spin Hamiltonian and tight-binding(TB)method,we reveal the microscopic origins,instead of the common phenomenological understanding,of biaxial MA and triaxial *** the example system of NiO,it is found that the multiple minima result from the fourth-order and the sixth-order single ion interactions,while the difference between[110]and[110]directions originates from a second-order bond-dependent anisotropic pair interaction(i.e.,the so-called Gamma interaction).Moreover,through the application of a newly developed general spin dependent TB approach,it is revealed that the triaxial MA arises from the special spin-orbital entangled Hund term,which is different from the orbital-independent Hund term in the usual Slater Koster TB *** work thus not only leads to a thorough understanding of the multiaxial MA in NiO,but also establishes a methodology that can be widely used to explore the microscopic origins of MA in different magnets.

关键词： multiaxial magnetic anisotropy origin of multiaxial magnetic mnisotropy effective spin Hamiltonian tight-binding model antiferromagnetism

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Graphene derivatives as efficient hole transport materials for lead-free double perovskite（Cs2SnI6） solar cells: a numerical study

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Optoelectronics Letters 2025年第3期21卷 155-159页

作者： Sarita YADAV Saral K.GUPTA Chandra Mohan Singh NEGI department of physical Science Banasthali Vidyapith

The double perovskite Cs2SnI6has notable optical and electrical characteristics, rendering it a highly prospective candidate for deployment as the absorber layer in perovskite solar cells （PSCs）. We simulated the performance of PSCs using lead-free Cs2SnI6double perovskite absorber layer and graphene derivatives, namely graphene oxide （GO） and reduced graphene oxide （rGO）, as hole transport layers （HTLs）. Our findings show that r GO offers an excellent hole extraction property with minimal interfacial recombination compared to GO.

关键词： A

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Doline susceptibility mapping using multisource data in the karst aquifers of Saldaran mountain,High Zagros Belt

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Journal of Mountain Science 2025年第2期22卷 422-435页

作者： Peyman MOHAMMADI-AHMADMAHMOUDI Somaiyeh KHALEGHI Mohsen EHTESHAMI-MOINABADI department of physical Geography Faculty of Earth SciencesShahid Beheshti UniversityTehran ***Iran department of Sedimentary Basins and Petroleum Faculty of Earth SciencesShahid Beheshti UniversityTehran ***Iran

Doline susceptibility mapping(DSM)in karst aquifer is important in terms of estimating the vulnerability of the aquifer to pollutants,estimating the infiltration rate,and infrastructures exposed to the development of *** this research,doline susceptibility map was prepared in Saldaran mountain by generalized linear model(GLM)using 14 affecting parameters extracted from satellite images,digital elevation model,and geology *** 8 parameters have been inputted to the model which had correlation with *** this regards,306 dolines were identified by the photogrammetric Unmanned Aerial Vehicles(UAV)method in 600 hectares of Salderan lands and then,these data were divided into the training(70%)and testing(30%)data for *** results of DSM modeling showed that classified probability of doline occurrences in the Saldaran mountain were as follow:16.5%of the area high to very high,72%in the class of low to very low,and 5%in the moderate ***,locally,in Saldaran mountain,the Pirghar aquifer has the highest potential for the doline development,followed by Bagh Rostam and Sarab ***,the precipitation,digital elevation model,Topographic Position Index,drainage density,slope,TRASP(transformed the circular aspect to a radiation index),Snow-Covered Days and vegetation cover index are of highest importance in the DSM modeling,*** evaluation of the model using the Receiver Operating Characteristics(ROC)curve represents a very good accuracy(AUC=0.953)of the DSM model.

关键词： Doline susceptibility mapping UAV photogrammetry Karst aquifers Generalized linear model(GLM) High Zagros Belt

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Biomimetic proton pocket and effective interfacial modulation for zinc metal anodes

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Science China Chemistry 2025年第2期68卷 526-535页

作者： Qi Dong Qingshun Nian Xuan Luo Jiajia Fan Jinyu Jiang Zhuangzhuang Cui Digen Ruan Xiaodi Ren Hefei National Research Center for physical sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Rechargeable aqueous zinc batteries(RAZBs)offer a promising solution for large-scale energy storage due to the abundance,low cost,and safety of ***,practical applications are hindered by Zn anode instability,dendrite growth,and hydrogen evolution reactions(HER).Chaotropic Zn(ClO_(4))2 electrolytes are favorable for low-temperature operations but exacerbate these issues due to their high acidity,leading to severe Zn corrosion and layered double hydroxide *** propose a biomimetic strategy using methylguanidoacetic acid(creatine)as a low-cost,eco-friendly additive to address these *** acts as a proton pocket to finely tune the pH of acidic Zn(ClO_(4))2 electrolytes for suppressing HER and stabilizing the Zn ***,the formed creatinine cations adsorb on the Zn surface,promoting highly controlled Zn deposition with a preferred(002)*** approach significantly enhances battery cycling performance,with Zn||Zn cells demonstrating extended cycling stability at both low and high current ***||Cu cells exhibited improved Coulombic efficiency over thousands of cycles,indicating highly reversible Zn plating/***,stable cell operations were realized at the temperature as low as−35℃ without electrolyte *** findings highlight the potential of biomimetic proton regulation and interfacial modulation for improving the stability and reversibility of Zn plating/stripping in RAZBs.

关键词： zinc metal anode dendrite suppression interfacial modulation proton-triggered cyclization Zn(ClO_(4))2 electrolyte

Flat-band based high-temperature ferromagnetic semiconducting state in the graphitic C4N3 monolayer

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Fundamental Research 2025年第1期5卷 138-144页

作者： Chaoyu He Yujie Liao Tao Ouyang Huimin Zhang Hongjun Xiang Jianxin Zhong Laboratory for Quantum Engineering and Micro-Nano Energy Technology and School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China Key Laboratory of Computational physical sciences(Ministry of Education) Institute of Computational Physical SciencesDepartment of PhysicsFudan UniversityShanghai 200433China

Half-filled isolated flat-band paves a new way to realize high-temperature ferromagnetic semiconductor for spintronics applications,but it is extremely rare in lattice models and lacking in realistic ***,the 2×2 super-cell of the honeycomb lattice with a single-hole defect is proposed as a new lattice model(HL-D-1/8)to realize nontrivial isolated *** further demonstrate that C_(4)N_(3)monolayer of the experimentally realized graphitic carbon nitride(***.,22,1004,2010;***.,9,3366,2018)is a perfect system holding such a lattice to host flat-bands.A new corrugated Pca21 configuration is proposed as the ground state for the free-standing C_(4)N_(3)monolayer,which is dynamically stable and energetically more favorable than the widely-used flat one without dynamical *** Pca21 configuration is found to be an intrinsic ferromagnetic half-semiconductor(T_(c)≈241 K)with one semiconducting spin-channel(1.75 eV)and one insulating spin-channel(3.64 eV),which is quite rare in two-dimensional *** ferromagnetic semiconducting property originates from the isolated pz-state flat-band as the corrugation shifts the flat-band upward to the Fermi ***,such a corrugated Pca21 C_(4)N_(3)monolayer is found to be both piezoelectric and ferroelectric,which makes it an unusual metal-free two-dimensional multiferroic.

关键词： Graphitic C_(4)N_(3) Isolated flat-band Ferromagnetic semiconductor Two-dimensional multiferroic First-principles calculation Tight-binding model

Hybrid and enhanced electrokinetic system for soil remediation from heavy metals and organic matter

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Journal of Environmental sciences 2025年第1期147卷 424-450页

作者： Faris M.Hamdi Namuun Ganbat Ali Altaee Akshaya K.Samal Ibrar Ibrar John L.Zhou Adel O.Sharif Centre for Green Technology School of Civil and Environmental EngineeringThe University of Technology Sydney15 BroadwayNSW 2007Australia department of Civil Engineering Jazan UniversityJazan 82822Saudi Arabia Centre for Nano and Material sciences Jain UniversityRamanagaraBangaloreKarnataka 562112India School of Mechanical sciences Faculty of Engineering and Physical SciencesUniversity of SurreyAustralia

The electrokinetic(EK)process has been proposed for soil decontamination from heavy metals and organic *** advantages of the EK process include the low operating energy,suitability for fine-grained soil decontamination,and no need for *** the last three decades,enhanced and hybrid EK systems were developed and tested for improving the efficiency of contaminants removal from *** enhanced-EK processes exhibited excellent efficiency in removing contaminants by controlling the soil pH or the chemical reaction of *** hybrid systems were tested to overcome environmental hurdles or technical drawbacks of decontamination *** of the EK process with phytoremediation,bioremediation,or reactive filtermedia(RFM)improved the remediation process performance by capturing contaminants or facilitating biological agents’movement in the ***,EK process coupling with solar energy was proposed to treat off-grid contaminated soils or reduce the EK energy *** study reviews recent advancements in the enhancement and hybrid EK systems for soil remediation and the type of contaminants targeted by the *** study also covered the impact of operating parameters,imperfect pollution separation,and differences in the physicochemical characteristics and microstructure of soil/sediment on the EK ***,a comparison between various remediation processes was presented to highlight the pros and cons of these technologies.

关键词： Electrokinetic Soil remediation Reactive filter media Enhanced electrokinetic Contaminants

Evidence for active generation and seepage of sub-salt natural gas/condensate blend in the east offshore Nile Delta, Egypt: Integrated geochemical, petrophysical and seismic attribute approaches

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Petroleum Science 2025年第1期22卷 130-150页

作者： Mahmoud Leila Ahmed A.Radwan Amir Ismail Emad A.Eysa Geology department Faculty of Science Mansoura University School of Mining and Geosciences Nazarbayev University department of Geology Faculty of Science Al-Azhar UniversityAssiut Branch department of Geology Faculty of Science Helwan University department of physical and Environmental sciences Texas A&M University—Corpus Christi Geology department Faculty of Science Zagazig University

Offshore Nile Delta in Egypt represents an enormous hydrocarbon province with recent projected gas and condensate discoveries of more than 50 trillion cubic feet “TCF”. Most of these occur in the post-salt hydrocarbon plays where biogenic gases are dominant. This study integrates organic geochemistry,seismic geomorphology and petrophysics in order to decipher the origin, and accumulation conditions of the wet gas/condensate blend in the Upper Miocene sub-salt Wakar Formation sandstones in Port Fouad Marine “PFM” Field, offshore Nile Delta. Hydrocarbon pay zones are scattered thin（ 1 w.t.%, hydrogen index“HI” > 200 mg HC/g TOC） and mature(Tmax> 430°C, vitrinite reflectance “VR” > 0.6 %R_o), source rocks are restricted to Upper Miocene Wakar and Oligo-Miocene Tineh formations. The latter contains more mature organofacies（up to 1.2 %R_o） and type II/III kerogen, thereby demonstrating a good capability to generate wet gases. The studied gas is wet and has thermogenic origin with signs of secondary microbial alteration, whereas the condensate contains a mixture of marine and terrestrial input. Molecular biomarkers of the condensate, isotopic and molecular composition of the gas reveals a generation of condensate prior to gas expulsion from the source. The Wakar sandstones have a heterogeneous pore system where three reservoir rock types（RRTI, RRTII and RRTIII）. RRTI rocks present the bulk composition of the Wakar pay zones. Spatial distribution of RRTI facies likely control the accumulation of the sub-salt hydrocarbons. Our results provide a new evidence on an active petroleum system in the sub-salt Paleogene successions in the offshore Nile Delta where concomitant generation of ga

关键词： Petrophysical evaluation Source rock Hydrocarbon geochemistry Biomarkers Gas chimneys Rock-typing