Digital Commons Network^™

Precision Crop Yield Prediction Model Based On Deep Learning And Multimodal Data Fusion, Zijin Mo, Yanxiong Wu

Turkish Journal of Agriculture and Forestry

More precise crop yield prediction methods are essential in advancing precision agriculture, ensuring food security, and promoting sustainable agricultural practices. Deep learning technologies have significantly improved prediction accuracy by allowing the analysis of large-scale agricultural datasets. However, existing approaches still face challenges in effectively integrating multisource data, such as meteorological, soil, and remote sensing information, and optimizing model parameters. To address these issues, this study introduces TCGNet, a novel deep learning architecture that combines a time convolutional network (TCN), convolutional long short-term memory (ConvLSTM), and the grey wolf optimization (GWO) algorithm. The TCN is employed for time series analysis, ConvLSTM …

A Comprehensive Review Of Fermentation Technologies In Food Processing: From Traditional To Cutting Edge, Pragati Singh, Niharika Arya, Shalini Sharma, Ankita Sharma, Prasad Rasane, Supriya Singh Gaur, Sawinder Kaur, Mahendra Gunjal, Hasan Kiliçgün, Jyoti Singh

Turkish Journal of Agriculture and Forestry

Fermentation technologies play crucial roles in food processing, offering various advantages, including enhanced flavor profiles, extended shelf life, and improved nutritional qualities. This paper provides a comprehensive overview on the major types of fermentation as well as effects of various factors such as substrate composition, temperature, pH, oxygen availability, and microbial strain selection on the process. Despite its widespread application, traditional fermentation processes face limitations related to yield optimization, contamination risks, and process consistency. Recent advancements have significantly enhanced fermentation efficiency, product quality, and scalability, ultimately expanding the applications beyond food and beverage production into pharmaceuticals, nutraceuticals, biofuels, and waste …

Assessment Of Phenolic Composition, Sugars, And Antioxidant Capacity In Turkish Fig (Ficus Carica L.) Cultivars, Ghassan Zahid, Haşi̇m Kelebek, Ayzi̇n Küden, Flavien Shimira, Yildiz Aka Kaçar

Turkish Journal of Agriculture and Forestry

Fig fruits (Ficus carica L.) have significant health benefits. Türkiye is the leading fig producer in the world. Despite their diversity and rich medicinal properties, the biochemical fingerprints and nutritional quality of local figs are poorly understood. This study aimed to analyze the peels and pulps of eight Turkish figs with varying colors for their total phenolic composition, sugars, and antioxidant capacity. Thirty-one phenolic compounds (PCs) were detected using HPLC-MS/MS. The dark-purple 01-1N-58 genotype had the highest amount of colored PCs in fruit peels and pulps (151.25 and 31.57 mg/100 g dw, respectively). Likewise, the maximum quantity of colorless PCs …

Parity-Time Symmetry In Vcsels Utilizing Lithographic Cavities, Abdullah Demi̇r

Turkish Journal of Physics

Parity-time symmetry (PTS) has emerged as a powerful strategy for engineering single-mode lasers with enhanced mode selectivity. In this work, we present a systematic numerical study comparing two classes of non-Hermitian micro-laser designs: PTS and quasi-PTS (q-PTS). Using lithographically defined vertical-cavity surface-emitting lasers (Li-VCSELs) as our platform, we show that q-PTS VCSELs offer superior transverse mode discrimination compared to their PTS counterparts. This advantage arises from the unique coupling mechanism in q-PTS architectures, where the fundamental mode preserves its low-loss nature. In contrast, PTS VCSELs require the second-order mode to remain in the PTS phase while the fundamental mode is …

Evolution Of Wormholes Under F(R, T) Theory, The Karmarkar Condition And The Casimir Energy, Murat Metehan Türkoğlu

Turkish Journal of Physics

In this study, both the evolution of wormholes (by examining both the energy conditions and using the TOV equations) and the effects of the Karmarkar condition on the solutions obtained under certain specific cases were examined in the light of the f(R, T) gravity theory, using two f(R, T) functions predicted to describe the accelerated expansion of the universe. In this context, for the first time in the literature, a generalized shape function was obtained using the Karmarkar condition. It was observed that solutions of the type R -a12/R+a2g(T) satisfy the energy conditions (with the dominant energy condition being partially …

Variational Monte Carlo Optimization Of Proton-Proton Scattering Potential Using The Phase Function Method, Shikha Awasthi, Anil Khachi, O.S.K.S. Sastri

Turkish Journal of Physics

The Riccati-type nonlinear differential equation, also known as the Phase Function equation, is used to construct local inverse potentials for the 1S0 - pp state by bypassing the well-known Schrödinger equation. The pp interaction is described using the Malfliet-Tjon potential model for the nuclear component combined with a screened Coulomb potential, with the phase equation solved via the fourth-order Runge-Kutta (RK-4) method. Based on our analysis, we confirm that the optimized interaction potential closely matches the well-known realistic Argonne V18 and Reid potentials for the 1S0 state, and the computed phase shifts and cross-sections show excellent agreement with experimental data. …

Antiinflammatory Mechanisms Of Barley-Based Functional Foods Beyond Diabetes Management, Hafiz Ghulam Muhu Din Ahmed, Adnan Noor Shah, Muhammad Ahtasham Mushtaq, Xiaomeng Yang, Jiazhen Yang, Xia Li, Li’E Yang, Xiaoying Pu, Yawen Zeng

Turkish Journal of Agriculture and Forestry

This review article investigated the antiinflammatory properties of barley, emphasizing its benefits beyond diabetes management. Barley, historically valued for its nutritional and medicinal properties, is rich in bioactive compounds such as beta-glucans, phenolic acids, and flavonoids. These compounds are known for their significant antioxidant and antiinflammatory activities. This study highlights the multifaceted mechanisms through which barley reduces systemic inflammation, including the enhancement of gut microbiota composition, the production of beneficial short-chain fatty acids, and the modulation of immune responses. Beta-glucans in barley lower cholesterol, and regulate glucose levels, while phenolic acids and flavonoids inhibit proinflammatory enzymes and cytokines, thereby reducing …

Effects Of Commiphora Myrrha Resin Extract/Nanosilver On Immune Cells, Pathogen, And Breast/Colon Cancer Cell Line Growth, Mohammad Y. Alshahrani, Essam H. Ibrahim, Abeer S. Alahmari, Mona Kilany, Ramadan Taha, Haitham I. El-Mekkawy, Amr Ahmed El-Arabey, Ahmed Ezzat Ahmed

Turkish Journal of Agriculture and Forestry

Commiphora myrrha grows in various places of the world and is used for many purposes. The objectives of this study were to examine the biological influences of C. myrrha resin extract (MRE) alone or with its biogenic nanosilver on microbial, immune, and cancer cell growth. C. myrrha resin was boiled to prepare the MRE. Functional groups in the MRE were explored using Fourier-transform infrared spectroscopy (FTIR). MRE was used to synthesize nanosilver that was characterized using an ultraviolet-visible (UV-Vis)-spectrophotometer and X-ray diffraction. In vivo experiments included the untreated group (G1) and MRE-orally treated group (G2). Cancer cell lines, HCT-116 (colon) …

Cover And Contents

Turkish Journal of Chemistry

No abstract provided.

Pyrene-Based Hole Transport Materials For Efficient Perovskite Solar Cells, Madiha Irfan, Aamer Saeed, Sania Tahir, Muhammad Rehman Yaqoob, Sohaib Ahmed Zia, Muhammad Usama, Junaid Mukhtar, Usama Farrukh, Sara Rehman

Turkish Journal of Chemistry

In the past few years, perovskite solar cells (PSCs) have gained a lot of attention and become a well-known topic in solar studies due to their lower manufacturing costs and improved efficiencies. Previously utilized hole transport materials (HTMs), such as poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] and 2,2ʹ,7,7ʹ-tetrakis(N,N-di-p-methoxyphenylamine)-9,9ʹ-spirobifluorene, are challenging due to their high price, complicated synthesis, limited carrier mobility, and poor device stability. Developing HTMs for PSCs that are inexpensive and high-performance has gained much interest. Currently, many HTMs of organic molecules are used to improve photovoltaic qualities and reduce synthesis costs. Effectively using HTMs is essential for producing the best photovoltaic efficiency in …

Determination Of Mitoxantrone In Environmental Waters: A Spectrophotometric Method With Preconcentration By Salt Saturated Pipette-Tip Micro Solid Phase Extraction Using Molecularly Imprinted Polymer, Sayyed Hossein Hashemi, Massoud Kaykhaii, Ahmad Jamali Keikha, Mina Esmailiun

Turkish Journal of Chemistry

In this research, a fast and simple spectrophotometric method is presented for mitoxantrone determination in various aqueous samples. It utilizes preconcentration by salt saturated pipette-tip micro solid phase extraction with a selective molecularly imprinted polymer adsorbent packed in a micropipette tip. Prior to sample loading, they were saturated with a mixture of NaCl, Mg (NO3)2.6H2O and KNO3 salts, enhancing extraction efficiency by 27.5% compared to salt-free conditions. Key microextraction parameters (amount of molecularly imprinted polymer, sample pH, eluent type/volume, and adsorption/desorption cycles) were optimized using response surface methodology and one-variable-at-a-time methods. The method achieves a low detection limit (0.2 μg …

Removal Of Heavy Metal Iron(Ii) Ions From Wastewater Using An Ultrasonic System With Climbazole-Alcohol, Melek Gökmen Karakaya, Bahdi̇şen Gezer, Abdullah Menzek, Özlem Gündoğdu Aytaç

Turkish Journal of Chemistry

Climbazole (CBZ) is an antifungal active pharmaceutical ingredient often used in antidandruff products. In this study, the ketone group in the racemic CBZ molecule was reduced to synthesize CBZ-alcohol, named 1-(4-chlorophenoxy)-1-(1H-imidazol-1-yl)-3,3-dimethylbutan-2-ol, and the optimum adsorption conditions were investigated for removing iron(II) (Fe2+) ions from wastewater by adsorption from aqueous solutions using the economical and environmentally friendly ultrasonic method. The parameters and levels used in the study were designed using response surface methodology and model equations were derived to optimize the results. The independent variables selected were the initial pH (1, 3, and 5), adsorption time (30, 45, and 60 min), …

Enhanced And Proficient Chitosan Membranes Embedded With Polyaniline-Tio2 Core-Shell Nanocomposites For Fuel-Cell Hydrogen Storage, Mallikarjunagouda Patil, Sridhar N. Mathad, Arun Y. Patil, Abdulaziz Abdulah Al-Kheraif, Sachin Naik, Sajith Vellapally

Turkish Journal of Chemistry

This study investigates the preparation and properties of aniline polymerized in situ onto a nanosized TiO2 surface to form core-shell nanoparticles at ambient temperatures. The in situ polymerization of aniline to polyaniline (PANI), in conjunction with the utilization of an anionic surfactant, was employed in this investigation. The prepared PANI-TiO2 core-shell nanoparticles were integrated with chitosan at a gravimetric ratio and cast as core-shell nanocomposite membranes. The nanocomposites were subjected to structural analysis using Fourier transform infrared spectroscopy and X-ray diffraction patterns. The surface morphologies of the PANI and its nanocomposites were analyzed using scanning electron microscopy. Direct current conductivity …

Removal Of Ddt, Ddd, And Dde From Washing Extracts Of Contaminated Soil Using Polyaniline/Bagasse Composite Material, Hop Quang Nguyen, Bach Xuan Nguyen, Thien Quang Tran, Anh Van Nguyen

Turkish Journal of Chemistry

Polyaniline (PANi) was hybridized with a bagasse (BG) substrate to treat Dichlorodiphenyltrichloroethane (DDT), dichlorodiphenyldichloroethylene (DDE), and dichlorodiphenyldichloroethane compounds, which are persistent organic pollutants (POPs) causing environmental contamination. The PANi/bagasse (PA/BG) composite was synthesized using ammonium persulfate and sulfuric acid, achieving efficiencies ranging from 82.63% to 86.92% with different ratios of PANi monomer to BG. Infrared spectroscopy (IR) and scanning electron microscopy (SEM) were used to characterize the synthesized materials. The adsorption capacities of DDT, DDD, and DDE compounds were investigated under various conditions, including adsorbent type, adsorption time, adsorbent dosage, and adsorbate concentration. Both Langmuir and Freundlich isotherm models were …

Dispersive Micro Solid Phase Extraction Of Cadmium On Mil-53(Al)@Batio3 Nanocomposite From Seafood Samples, Mustafa Soylak, Eda Bora, Furkan Uzcan

Turkish Journal of Chemistry

This study’s main goal was to produce a user-friendly dispersive micro solid phase extraction (dmSPE) technique with a MIL-53(Al)@BaTiO3 nanocomposite for the extraction and preconcentration of cadmium (Cd) in various seafood matrices, followed by using high-resolution continuum source flame atomic absorption spectrometry (HR-CS-FAAS). The MIL-53(Al)@BaTiO3 nanocomposite was synthesized and characterized using a range of techniques, including Fourier-transform infrared spectroscopy, field emission scanning electron microscopy, scanning transmission electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller analysis. The dmSPE technique involved the dispersion of the MIL-53(Al)@BaTiO3 material in the sample solution, followed by its separation from the sample matrix. The optimized method exhibited a …

Pt-Enhanced Wo3 Nanoparticles For Efficient Hydrogen Production: Synthesis And Electrochemical Evaluation, Merve Akbayrak

Turkish Journal of Chemistry

In this study, Pt/WO3 nanoparticles were synthesized using a simple room-temperature impregnation-reduction method and characterized by advanced techniques including ICP, TEM-EDX, FE-SEM-EDX, and XRD. The ICP-OES analysis confirmed a 1.0 wt. %Pt loading on the WO3 support. TEM and FE-SEM analyses revealed that the Pt nanoparticles were well dispersed with an average size of approximately 3.7 nm. The XRD patterns showed characteristic WO3 peaks without any detectable Pt diffraction peaks, indicating the high dispersion of Pt. Electrochemical evaluations demonstrated that the Pt/WO3 catalyst exhibited outstanding hydrogen evolution reaction (HER) performance, with –27.8 mV vs. RHE onset potential and –37.4 mV …

A Single Batch Synthesis Of Pure Phase Mo2c From Ammonium Molybdate: Pathway And Properties, Melek Cumbul Altay

Turkish Journal of Chemistry

This study presents an original, effective, and environmentally friendly method for synthesizing pure molybdenum carbide (Mo2C) from ammonium molybdate tetrahydrate (AMT) without generating carbon dioxide, a greenhouse gas. The process involves the sequential transformation of AMT to Mo2C, which follows the reaction pathway of (NH4)6Mo7O24→MoO3→MoO2→Mo→Mo2C. This transformation is achieved by strategically altering the gas atmosphere, switching from Ar to H2 at 800 K and then from H2 to CH4 at 1000 K. Thermal analysis, X-ray diffraction (XRD), and scanning electron microscopy (SEM) techniques were used to characterize AMT and the products. Mass measurements were used to follow the conversion of …

Determination Of P53 Biomarker With A Smart Electrochemical Biosensor Based On Brush Polymer-Functionalized Disposable Electrode, Muhammet Aydin

Turkish Journal of Chemistry

A label-less impedimetric biosensor modified with poly(thiophene)-graft-poly(glycidyl methacrylate) polymer (PThi-g-PGM) was manufactured for p53 protein quantification in human serum samples. In this study, PThi-g-PGM polymer was synthesized, and this polymer matrix was coated using the spin-coating technique on the single-use indium tin oxide (ITO) substrate for anti-p53 antibody immobilization. The anti-p53 antibodies with high affinity for p53 proteins were covalently attached onto the PThi-g-PGM-coated electrode surface. In addition, the affinity of anti-p53 for the p53 protein was monitored at a constant frequency. Under optimized conditions, the impedimetric changes were linearly related to the p53 concentrations, ranging from 0.05 to 15 …

Highly Sensitive And Selective Detection Of Klk4 In Human Serum With A Low-Cost Electrochemical Biosensor, Eli̇f Burcu Aydin

Turkish Journal of Chemistry

An ultrasensitive impedimetric immunosensor was fabricated using a poly(glycidyl methacrylate) (PGMA) polymer-covered indium tin oxide (ITO) platform for the quantification of kallikrein 4 (KLK4), an important prostate cancer biomarker. PGMA had suitable biocompatibility and nontoxicity for loading of antiKLK4 antibodies on the ITO substrate surface. Anti-KLK4 biomolecules were directly attached to the PGMA-covered electrode surface via epoxy groups of the PGMA polymer. The preparation method for the PGMA matrix-modified electrode was simple and inexpensive. The proposed biosensor immobilization layers coated on the ITO electrode were characterized with electrochemical techniques. The experimental parameters that affect biosensor response were optimized, and the …

Cover And Contents

Turkish Journal of Medical Sciences

No abstract provided.

Short-Term Efficacy And Safety Of Nondamaging Retinal Laser Therapy For Retinitis Pigmentosa-Associated Cystoid Macular Edema, Seda Çevi̇k Kaya, Mehmet Çitirik, Mevlüt Yilmaz, Eyüpcan Şensoy

Turkish Journal of Medical Sciences

Background/aim: To evaluate the short-term efficacy and safety of nondamaging retinal laser therapy (NRT) for retinitis pigmentosa-associated cystoid macular edema (RP-CME) and analyze anatomical and functional outcomes.

Materials and methods: A retrospective case series of 40 eyes from 30 patients with RP-CME was conducted. The patients underwent NRT using a PASCAL laser system with endpoint management (EpM) software. Central macular thickness (CMT) and best-corrected visual acuity (BCVA) were assessed at baseline and 2 months posttreatment. Long-term follow-up data, including recurrence rates were also reviewed.

Results: At the 2-month follow-up, NRT significantly reduced mean CMT by 79.7 μm (p < 0.001) and improved BCVA by 0.10 LogMAR (p < 0.001). Complete resolution of CME was observed in 30% of the eyes, while 52.5% experienced recurrence within 6 months. Unilateral cases exhibited greater CMT reductions than bilateral cases (p < 0.05). No retinal damage from the laser was observed. The long-term sustainability of these effects remains unclear, and repeated treatments have not yet been assessed.

Conclusion: NRT …

Administration Of Adipose Tissue-Derived Mesenchymal Stem Cells And Bone Marrow-Derived Mesenchymal Stem Cells In Anosmic Mice, Burak Hazir, Alper Ceylan, Emi̇n Ümi̇t Bağriaçik, Duygu Dayanir, Betül Öğüt, Ni̇han Örüklü, Mücahi̇t Yalçin, Berkay Şi̇mşek, Muammer Meli̇h Şahi̇n

Turkish Journal of Medical Sciences

Background/aim: Anosmia, a serious condition that affects the sense of smell, has no universally agreed-upon treatment. Adult stem cells are considered a potential option for treating anosmia. This study aims to evaluate the efficacy of mesenchymal stem cells derived from different tissues in an anosmic mouse model induced by 3-methylindole (3-MI).

Materials and methods: In our study, 36 mice with 3-MI-induced anosmia were divided into subgroups. Anosmia was confirmed by performing a food-finding test (FFT) in each group. Intranasal phosphate-buffered saline was administered to the first group, adipose tissue-derived mesenchymal stem cells (ADSCs) to the second group, and bone marrow-derived …

Forensic Identification Using Airdna: A Preliminary Study On The Collection, Isolation, Amplification And Sequencing Of Human Dna From Air Samples, Sitki Tiplamaz, Zehra Ömeroğlu Ulu, Bestami̇ Çolak, Hizir Asliyüksek, Fi̇kretti̇n Şahi̇n

Turkish Journal of Medical Sciences

Background/aim: Humans continually release skin cells and DNA fragments into the air. This DNA can either remain airborne or drop onto surfaces as indoor dust. This study investigates the collection, isolation, amplification, and sequencing of human DNA from air samples, focusing on both nuclear DNA and mitochondrial DNA.

Materials and methods: This study was conducted in a 15 m3 room and a meeting room, where air samples were systematically collected and filtered using a vacuum device equipped with various sterile filters. The rigorous protocols were implemented to prevent contamination throughout the process. Thirteen air samples were processed in this research, …

Evaluation And Validation Of 3d-Printed Anatomical Urinary System Model And Virtual Reality Rirs Simulators In Rirs Training: A Comparative Study, Mehmet Ezer, Tahsi̇n Batuhan Aydoğan, Lazaros Tzelves, Andreas Skolarikos, Mehmet Uslu, Kemal Sarica, Emre Huri̇

Turkish Journal of Medical Sciences

Background/aim: This study evaluates the use of a 3D-printed anatomical urinary system model (3D-AUSM) and a Virtual Reality RIRS Simulator (VRRS), for training in RIRS, based on real user feedback.

Materials and methods: The 3D-AUSM was created using cadaver CT and MRI scans, and the data was transferred to a VR environment for simulation. A total of 43 inexperienced urology trainees participated in the theoretical phase of the RIRS training program. Of these, 32 trainees (Group T) who passed a proficiency exam proceeded to the hands-on training phase with the 3D-AUSM and VRRS models. Additionally, 17 experienced surgeons (Group S) …

The Effects Of Fcs And Cysteamine On The Freezing Of Kıvırcık Ram Semen, Eli̇f Merve Çinar, Hati̇ce Şenli̇kci̇, Asi̇ye İzem Sandal, Ramazan Arici, Özen Banu Özdaş

Turkish Journal of Veterinary & Animal Sciences

The sensitivity of ram semen to cryobiological procedures has motivated many researchers to investigate this issue. In clinical practice, one of the main objectives is to reduce the damage caused by freezing cells through the addition of preservatives to semen diluents. In our study, fetal calf serum (15% FCS) and 3–6 mM cysteamine were added to ram semen diluents, and their effects on semen after freeze-thawing were investigated. Semen was collected from five Kıvırcık rams using an electroejaculator and combined in equal volumes (pooling). After macroscopic and microscopic examination, the samples were divided into six equal volumes. Six study groups …

Histological And Histochemical Study Of The Salt Glands In Geese (Anser Anser): Are There Receptor Cells In Salt Glands?, Şahi̇n Aslan, Di̇lem Gülece Ermutlu, Serap İlhan Aksu, Serap Koral Taşçi, Turgay Deprem

Turkish Journal of Veterinary & Animal Sciences

The regulation of solutes occurs not through the skin but via salt glands located in the nose and kidneys in reptiles and birds. This study aimed to investigate and elucidate the histological structure of the salt glands in domestic geese, and to characterize their ducts and cellular components in detail.Crossmon’s triple staining technique, hematoxylin and eosin (H&E), periodic acid-Schiff (PAS), combined alcian blue, and Kluver– Barrera stains were used for the histological investigations.The outer surface of the organ was enclosed by connective tissue, and the capsule subdivided the tissue into bulbs. Nerve fibers and endings were observed within the capsule …

Integrated Geochemical, Geoelectrical, And Uav-Based Methods For Analyzing The Güzelyalı Landslide (Çanakkale, Türkiye), Oya Erenoğlu, Emi̇n Ulugergerli̇, R. Cüneyt Erenoğlu, Abdullah Akbaş, Ahmet Evren Ergi̇nal

Turkish Journal of Earth Sciences

The number of reactivations increased in the Güzelyalı-Erenköy landslide area after 2013 in Çanakkale, Türkiye, where historical landslide activity has been recorded since 1875. This area is home to numerous summer residences and experiences ongoing slow-moving landslide activity along a 400-m-long slope, extending from the heavily trafficked Çanakkale-İzmir highway to the coastline. In this study, the nature of the reactivations was evaluated by considering the conditioning and triggering factors that contributed to the landslide. The evaluation was based on geochemical analyses, field observations, geoelectric measurements, and unmanned aerial vehicle (UAV) data. The results revealed that the sliding occurred along a …

First Record Of Scyphocrinoids In Türkiye And Recognition Of The Silurian/Devonian Boundary Interval (Halevikdere Section, Eastern Taurides), Eberhard Schindler, Reimund Haude, Mehmet Namik Yalçin, Rainer Brocke, Ati̇ke Nazi̇k, Emine Şeker Zor, Volker Wilde, Achim Wehrmann

Turkish Journal of Earth Sciences

During the Silurian/Devonian (S/D) boundary interval, scyphocrinoids (Crinoidea, Echinodermata) flourished on a global scale. The first record of scyphocrinoids from Türkiye, especially represented by their bulbuous loboliths, is now described from the Halevikdere Section in the Eastern Taurides. The Devonian part of the section is more than 1300 m thick and covers a time span from the S/D boundary interval to the Late Devonian (Famennian). It consists mainly of fine-grained to sandy siliciclastics, event-driven conglomerates/fanglomerates and biogenic carbonates deposited in deep shelf to shallow-water coastal settings. The S/D boundary interval was measured and studied in great detail. The dominant lithology …

The Quaternary Fluvial-Lacustrine System In The Akarçay Basin (Sw Anatolia): Depositional Environments And Paleoclimatic Interpretation, Koray Aktürk, Sevi̇nç Kapan

Turkish Journal of Earth Sciences

The Akarçay Closed Basin, located in southwest Anatolia, contains deformed formations and the drying Akşehir and Eber lakes. This study aimed to interpret the paleoenvironmental and paleoclimatic conditions of the Akşehir and Eber lakes, which are reported to have been connected during the Pleistocene. Based on sedimentological and mineralogical data, three different depositional subenvironments were defined, corresponding to the formation and development stages of the lake. Sedimentary facies analysis of the Pleistocene deposits in the basin revealed the following facies associations, listed from bottom to top: 1) an alluvial fan and fluvial facies association, representing the formation stage of the …

Formation Of Holocene Paleosols In A Relict Sand Dune Sequence At Kıyıköy, Türkiye, Ahmet Evren Ergi̇nal, Mustafa Bozcu, Nuretti̇n Yakupoğlu, Abdullah Akbaş, Hakan Kaya, İsmai̇l Onur Tunç

Turkish Journal of Earth Sciences

The paleoclimatic indicators from a relict dune and paleosol sequence observed south of Kıyıköy Port, NW Türkiye, provide insights into the variable paleoclimatic conditions in the western Black Sea coastal zone over the last 4700 yrs BP. The relict dune- paleosol sequence consists of reddish-brown coarse sands with abundant shells and overlying paleosol. Radiocarbon dating of Donax trunculus shells collected from the lowest part of the relict dune revealed the onset of sand deposition 4689 ± 123 yrs ago. The dark-colored paleosol layer, with an Rb/Sr ratio of 0.008, yielded an age of 287 ± 32 yrs cal BP. These …