المؤلفون: Afshari, M., Nabatian, Gh., Honarmand, M., Ebrahimi, M., Li, X-H.

المصدر: Australian Journal of Earth Sciences; Mar2024, Vol. 71 Issue 2, p251-276, 26p

مصطلحات موضوعية: METALLOGENY, IGNEOUS intrusions, FLUID inclusions, VEINS (Geology), VOLCANIC ash, tuff, etc., OROGENIC belts

مصطلحات جغرافية: IRAN

مستخلص: Petrological, geochemical and zircon U–Pb and Hf isotope studies were carried out on the Hajseyran pluton, along the Tarom–Hashtjin metallogenic zone, as part of the Alborz–Azerbaijan magmatic belt, which is located in the central part of the Alpine–Himalayan orogenic belt. The Hajseyran pluton, which is made up of syenite, monzonite, quartz-monzonite and granite, yields a zircon U–Pb age of 39.20 ± 0.56 Ma (for a quartz-monzonite sample) with shoshonitic features. Enrichment in large ion lithophile elements, depletion in high-field-strength elements and negative anomalies of Nb, Ta and Ti in Chomalou samples suggest a subduction-related arc magmatic setting. The Chomalou epithermal Pb–Zn–Cu deposit occurs close to the Hajseyran pluton with the quartz–base metal sulfide veins predominantly hosted by Eocene volcanic rocks. The ore-forming processes include chalcopyrite and sphalerite–galena formation, with the latter the major mineralisation in this region. Microthermometric results from the liquid–vapour fluid-inclusion assemblages show that the homogenisation temperatures in the first-stage quartz range from 230 to 310 °C, in the sphalerite and second-stage quartz from 161 to 293 °C and in the late-stage quartz from 175 to 262 °C. The salinities of fluids decrease from early-stage quartz to late-stage quartz. The calculated stable isotope values of ore–fluid components (δ¹⁸Owater = +3.28‰ to −3.68‰; δ³⁴SH2S = +5.5‰ to +7.8‰) show that magmatic fluids have played a significant role during mineralisation. The Chomalou deposit is interpreted as a volcanic-hosted intermediate-sulfidation type of epithermal mineralisation formed through shallow-level emplacement of the Hajseyran pluton, which formed via partial melting of phlogopite–amphibole-bearing sub-continental lithospheric mantle. The Neotethyan slab roll-back and concomitant asthenospheric upwelling led to the decompression melting of metasomatised sub-continental lithospheric mantle and the formation of several K-rich plutons and associated epithermal deposits in the Alborz–Azerbaijan magmatic belt. The late Eocene Hajseyran pluton shows a shoshonitic, arc-related signature. The Chomalou Pb–Zn–Cu deposit is an intermediate-sulfidation style of epithermal mineralisation. Fluid inclusion and stable isotope data suggest the evolution of ore-fluid system from magmatic to meteoric. Decompression melting of metasomatised sub-continental lithospheric mantle via slab roll-back led to the formation of Hajseyran pluton. [ABSTRACT FROM AUTHOR]

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المؤلفون: HONARMAND, M., SALEHI, M., SHABESTARI, S.G., SAGHAFIAN, H.

المصدر: Transactions of Nonferrous Metals Society of China ; volume 32, issue 5, page 1405-1415 ; ISSN 1003-6326

مصطلحات موضوعية: Materials Chemistry, Metals and Alloys, Geotechnical Engineering and Engineering Geology, Condensed Matter Physics

الإتاحة: https://doi.org/10.1016/s1003-6326Test(22)65882-5
https://api.elsevier.com/content/article/PII:S1003632622658825?httpAccept=text/xmlTest
https://api.elsevier.com/content/article/PII:S1003632622658825?httpAccept=text/plainTest

المؤلفون: Van Der Boon, A., Kuiper, K.F., Van Der Ploeg, R., Cramwinckel, M.J., Honarmand, M., Sluijs, A., Krijgsman, W.

المصدر: Van Der Boon , A , Kuiper , K F , Van Der Ploeg , R , Cramwinckel , M J , Honarmand , M , Sluijs , A & Krijgsman , W 2021 , ' Exploring a link between the Middle Eocene Climatic Optimum and Neotethys continental arc flare-up ' , Climate of the Past , vol. 17 , no. 1 , pp. 229-239 . https://doi.org/10.5194/cp-17-229-2021Test

مصطلحات موضوعية: /dk/atira/pure/sustainabledevelopmentgoals/climate_action, name=SDG 13 - Climate Action

الوصف: © Author(s) 2021.The Middle Eocene Climatic Optimum (MECO), a ~ 500 kyr episode of global warming that initiated at ~40.5 Ma, is postulated to be driven by a net increase in volcanic carbon input, but a direct source has not been identified. Here we show, based on new and previously published radiometric ages of volcanic rocks, that the interval spanning the MECO corresponds to a massive increase in continental arc volcanism in Iran and Azerbaijan. Ages of Eocene igneous rocks in all volcanic provinces of Iran cluster around 40 Ma, very close to the peak warming phase of the MECO. Based on the spatial extent and volume of the volcanic rocks as well as the carbonaceous lithology in which they are emplaced, we estimate the total amount of CO2 that could have been released at this time corresponds to between 1052 and 12 565 Pg carbon. This is compatible with the estimated carbon release during the MECO. Although the uncertainty in both individual ages, and the spread in the compilation of ages, is larger than the duration of the MECO, a flare-up in Neotethys subduction zone volcanism represents a plausible excess carbon source responsible for MECO warming.

العلاقة: https://research.vu.nl/en/publications/61e760a7-4f07-4908-89c8-032e0ecadf32Test

الإتاحة: https://doi.org/10.5194/cp-17-229-2021Test
https://research.vu.nl/en/publications/61e760a7-4f07-4908-89c8-032e0ecadf32Test
https://hdl.handle.net/1871.1/61e760a7-4f07-4908-89c8-032e0ecadf32Test

المؤلفون: Afshari, M., Nabatian, Gh., Honarmand, M., Ebrahimi, M., Li, X-H.

المساهمون: offices of Vice Chancellor for Research and Technology from University of Zanjan, IASBS (Institute for Advanced Studies in Basic Sciences), Zanjan, Iran, as well as the IGGCAS

المصدر: Australian Journal of Earth Sciences ; volume 71, issue 2, page 251-276 ; ISSN 0812-0099 1440-0952

الإتاحة: https://doi.org/10.1080/08120099.2023.2273974Test

المؤلفون: Noori, L, Pour, AB, Askari, G, Taghipour, N, Pradhan, B, Lee, CW, Honarmand, M

الوصف: © 2019 by the authors. Polymetallic vein-type ores are important sources of precious metal and a principal type of orebody for various base-metals. In this research, Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) remote sensing data were used for mapping hydrothermal alteration zones associated with epithermal polymetallic vein-type mineralization in the Toroud-Chahshirin Magmatic Belt (TCMB), North of Iran. The TCMB is the largest known goldfield and base metals province in the central-north of Iran. Propylitic, phyllic, argillic, and advanced argillic alteration and silicification zones are typically associated with Au-Cu, Ag, and/or Pb-Zn mineralization in the TCMB. Specialized image processing techniques, namely Selective Principal Component Analysis (SPCA), Band Ratio Matrix Transformation (BRMT), Spectral Angle Mapper (SAM) and Mixture Tuned Matched Filtering (MTMF) were implemented and compared to map hydrothermal alteration minerals at the pixel and sub-pixel levels. Subtle differences between altered and non-altered rocks and hydrothermal alteration mineral assemblages were detected and mapped in the study area. The SPCA and BRMT spectral transformation algorithms discriminated the propylitic, phyllic, argillic and advanced argillic alteration and silicification zones as well as lithological units. The SAM and MTMF spectral mapping algorithms detected spectrally dominated mineral groups such as muscovite/montmorillonite/illite, hematite/jarosite, and chlorite/epidote/calcite mineral assemblages, systematically. Comprehensive fieldwork and laboratory analysis, including X-ray diffraction (XRD), petrographic study, and spectroscopy were conducted in the study area for verifying the remote sensing outputs. Results indicate several high potential zones of epithermal polymetallic vein-type mineralization in the northeastern and southwestern parts of the study area, which can be considered for future systematic exploration programs. The approach used in this research has great ...

وصف الملف: application/pdf

العلاقة: Remote Sensing; Remote Sensing, 2019, 11 (5); http://hdl.handle.net/10453/134992Test

الإتاحة: http://hdl.handle.net/10453/134992Test

المؤلفون: Honarmand, M. Mahdi, Mehr, M. Emami, Yarahmadi, Mohadeseh, Siadati, M. Hossein

المصدر: SN Applied Sciences ; volume 1, issue 5 ; ISSN 2523-3963 2523-3971

مصطلحات موضوعية: General Earth and Planetary Sciences, General Physics and Astronomy, General Engineering, General Environmental Science, General Materials Science, General Chemical Engineering

الإتاحة: https://doi.org/10.1007/s42452-019-0522-4Test

المؤلفون: Khalili, R., Anvari, S., Honarmand, M.

المصدر: eISSN: 2194-9034

الوصف: Environmental pollution may be caused due to mines and mineral deposits. The accumulation of the associated heavy metals in soil and especially at the root zone of plants would result in plant contamination. This paper aims to detect the dominant heavy metals in Eucalyptus leaves using both biochemical and hyperspectral techniques for northern part of Bam in Iran. In this regards, using biochemical approach, some Eucalyptus leaf samples were collected, and their laboratory data containing the concentration of heavy metals were measured by Graphite Furnace Atomic Absorption Spectrometry (GF-AAS). Using ASD FieldSpec3 Pro spectrometer (Analytical Spectral Devices) also, the spectral profile of leaf samples was measured and compared with healthy ones namely control samples. Finally, using supervised classification methods, the spatial distribution of heavy metals was determined by combination of biochemical results, spectral measurements of samples and hyperspectral images of EO-1 satellite. Results showed that Eucalyptus trees accumulates the heavy metals of As and Pb with the average concentrations equalling 9.98 and 14.31 ppb while compared with the relevant control samples equalling 2.32 and 8.98 ppb, respectively. Combination of biochemical and hyperspectral data analysis also proved by increasing heavy metals concentrations in all samples, their spectral profiles for the visible and near infrared regions will be changed in comparison with those obtained from the control sample.

وصف الملف: application/pdf

العلاقة: https://isprs-archives.copernicus.org/articles/XL-1-W5/379/2015Test/

الإتاحة: https://doi.org/10.5194/isprsarchives-XL-1-W5-379-2015Test
https://isprs-archives.copernicus.org/articles/XL-1-W5/379/2015Test/

المؤلفون: Honarmand M. E., Hosseinnezhad V., Hayes B., Mohammadi-Ivatloo B., Siano P.

المساهمون: Honarmand, M. E., Hosseinnezhad, V., Hayes, B., Mohammadi-Ivatloo, B., Siano, P.

مصطلحات موضوعية: Demand response, Demand-side management, Economic operation, Load flexibility, Microgrid

الوصف: In a modern power system, a consumer can economically meet its demand by choosing the right strategy. The first and most convenient option, but obviously not the economic one, is to buy energy directly from the different electricity markets. The next choice, to minimize costs, is to supply electricity using the local generations. The latter can evoke the concept of microgrid if self-sufficiency exists. Meanwhile, alongside these choices, demand-side management (DSM) schemes are efficient supplementary solutions in the economic provision of demand. In fact, the efficient strategies of microgrids and DSM can be applied to the customer side to enhance loads flexibility. Despite the provision of significant advantages, the economic operation of microgrids is one of the most critical challenges in the power system. In response to this challenge, DSM, which is an efficient strategy that has provided considerable potentials in the restructured power systems, can be the resolution. In this chapter, the impact of customers’ participation level in demand response (DR) programs alongside its operation in the form of microgrid are investigated from the economic point of view. An approach is proposed to evaluate the installation and operation costs of a microgrid versus DR cost to opt an economic demanding strategy for a large-scale consumer. Two DR programs including price-based DR (PDR) and incentive-based DR (IDR) are considered in the studies. The proposed model is implemented in three real case studies that are investigated through simulations to study the different aspects of the problem. The results illustrate significant benefits that are obtained by applying the proposed economic management.

العلاقة: info:eu-repo/semantics/altIdentifier/isbn/978-3-030-59749-8; info:eu-repo/semantics/altIdentifier/isbn/978-3-030-59750-4; ispartofbook:Power Systems; firstpage:179; lastpage:204; numberofpages:26; serie:POWER SYSTEMS; http://hdl.handle.net/11386/4774798Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85102748980

الإتاحة: https://doi.org/10.1007/978-3-030-59750-4_7Test
http://hdl.handle.net/11386/4774798Test

المؤلفون: Asadi, H, Honarmand, M, Vazifedoust, M, Moussavi, A

مصطلحات موضوعية: Agriculture, land and farm management, Environmental assessment and monitoring, Environmental management, Soil sciences, Science & Technology, Life Sciences & Biomedicine, Multidisciplinary, Forest clearing

الوصف: Risk assessment of soil erosion, one of the most important land degradation problems worldwide, is very essential for land and water resources management, and development of soil conservation methods. In the present study, the temporal changes of soil erosion risk were assessed from 1987 to 2010, based on the Revised Universal Soil Loss Equation (RUSLE) using Remote Sensing (RS) and Geographic Information Systems (GIS) for the Navrood Watershed, Iran, with an area of 270 km2. Two Landsat satellite imageries obtained in 1987 and 2010 were used to assess the changes in vegetation cover during this period, and to obtain the Cover factor (C) of RUSLE. Rainfall and soil texture data and a digital elevation model were used to calculate the rest of RUSLE factors, which were taken as constant for the study period. The results showed that the average annual soil loss over the watershed ranged from 0 to 1,056 t ha-1 y-1 (Cumulative percentage> 99.9%). The area mapped as very high erosion risk (> 100 t ha-1 y-1) increased from 10% in 1987 to 12% in 2010, and the area of the next risk class (51-100 t ha-1 y-1) increased from 8 to 9%. These changes cover an area of about 800 ha in the watershed, in which erosion risk has been doubled or tripled in the last 23 years. Forest clearing and rangeland overgrazing were identified as the most important reasons for the increase in erosion risk. ; Full Text

العلاقة: Journal of Agricultural Science and Technology; Asadi, H; Honarmand, M; Vazifedoust, M; Mousavi, A, Assessment of Changes in Soil Erosion Risk Using RUSLE in Navrood Watershed, Iran, Journal of Agricultural Science and Technology, 2017, 19 (1), pp. 231-244; http://jast.modares.ac.ir/article-23-7096-en.htmlTest; http://hdl.handle.net/10072/405347Test

الإتاحة: http://hdl.handle.net/10072/405347Test

المؤلفون: Honarmand M. E., Hosseinnezhad V., Hayes B., Shafie-Khah M., Siano P.

المساهمون: Honarmand, M. E., Hosseinnezhad, V., Hayes, B., Shafie-Khah, M., Siano, P.

مصطلحات موضوعية: demand response, demand side management, Load management, prosumer, smart energy community

الوصف: The need to improve power system performance, enhance reliability, and reduce environmental effects, as well as advances in communication infrastructures, have led to demand response (DR) becoming an essential part of smart grid operation. DR can provide power system operators with a range of flexible resources through different schemes. From the operational decision-making viewpoint, in practice, each scheme can affect the system performance differently. Therefore, categorizing different DR schemes based on their potential impacts on the power grid, operational targets, and economic incentives can embed a pragmatic and practical perspective into the selection approach. In order to provide such insights, this paper presents an extensive review of DR programs. A goal-oriented classification based on the type of market, reliability, power flexibility and the participants' economic motivation is proposed for DR programs. The benefits and barriers based on new classes are presented. Every involved party, including the power system operator and participants, can utilize the proposed classification to select an appropriate plan in the DR-related ancillary service ecosystem. The various enabling technologies and practical strategies for the application of DR schemes in various sectors are reviewed. Following this, changes in the procedure of DR schemes in the smart community concept are studied. Finally, the direction of future research and development in DR is discussed and analyzed.

العلاقة: info:eu-repo/semantics/altIdentifier/wos/WOS:000673614000001; volume:9; firstpage:96851; lastpage:96876; numberofpages:26; journal:IEEE ACCESS; http://hdl.handle.net/11386/4774614Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85110893653

الإتاحة: https://doi.org/10.1109/ACCESS.2021.3094090Test
http://hdl.handle.net/11386/4774614Test