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Journal articles on the topic 'Serpentinita'

Author: Grafiati

Published: 18 April 2022

Last updated: 30 July 2025

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1

Anisimova, A. A. "Gemological and mineralogical-petrographic study of the Eastern Sayan serpentinites." Earth sciences and subsoil use 44, no. 1 (2021): 48–55. http://dx.doi.org/10.21285/2686-9993-2021-44-1-48-55.

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The purpose of the research is to study the mineralogical and petrographic characteristics of the Eastern Sayan serpentinites in order to identify their most decorative varieties. The objects of the study are the samples of serpentinites from the Ulan-Khodinskoye and Khokhurtovskoye deposits of the Eastern Sayan. Six samples were studied macroscopically then polished plates were made from them for gemological examination and thin sections for microscopic examination. All studies were carried out using standard gemological methods at the Gemmology Research Laboratory of the Irkutsk National Res

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Punturo, Rosalda, Roberto Visalli, and Rosolino Cirrincione. "A Review of the Mineralogy, Petrography, and Geochemistry of Serpentinite from Calabria Regions (Southern Italy): Problem or Georesource?" Minerals 13, no. 9 (2023): 1132. http://dx.doi.org/10.3390/min13091132.

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Serpentinite rocks testify to the ocean-floor metamorphism that took place and transformed the original mineralogy and fabric of previous ultramafic rocks. Due to their tectonic and petrological importance, in recent decades, there has been increasing interest in serpentinites. From the economic point of view, it is worth noting that, due to their beauty and attractiveness, serpentinite rocks have been exploited and traded as building and ornamental stones since prehistorical times worldwide. In this work, we provide a comprehensive report of the petrographic, mineralogical, petrophysical, and

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Gilio, Mattia, Marco Scambelluri, Samuele Agostini, Marguerite Godard, Daniel Peters, and Thomas Pettke. "Petrology and Geochemistry of Serpentinites Associated with the Ultra-High Pressure Lago di Cignana Unit (Italian Western Alps)." Journal of Petrology 60, no. 6 (2019): 1229–62. http://dx.doi.org/10.1093/petrology/egz030.

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AbstractIn the Western Alps, the ophiolitic Zermatt–Saas Zone (ZSZ) and the Lago di Cignana Unit (LCU) record oceanic lithosphere subduction to high (540°C, 2·3GPa) and ultra-high pressure (600°C, 3·2GPa), respectively. The top of the Zermatt–Saas Zone in contact with the Lago di Cignana Unit consists of olivine + Ti-clinohumite-bearing serpentinites (the Cignana serpentinite) hosting olivine + Ti-clinohumite veins and dykelets of olivine + Ti-chondrodite + Ti-clinohumite. The composition of this serpentinite reveals a refertilized oceanic mantle peridotite protolith that became subsequently e

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Juchler, S., and H. Sticher. "Der Totalpbergsturz bei Davos aus bodenkundlicher Sicht." Geographica Helvetica 40, no. 3 (1985): 123–32. http://dx.doi.org/10.5194/gh-40-123-1985.

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Abstract. The soils of a deposition hill of an ancient mountain slide, from a serpentinitic region called Totalp, were investigated and mapped. The investigation area lies east of Wolfgang (1631 m above sea level) near Davos, Switzerland. In spite of the subalpine climate, which generates iron-humus-podsols on acid Silicates, acid brown earth was found on serpentinitic parent material. Slightly visible eluvial horizons that were found occasionally below the raw humus consisted primarily of quartzsilt, which was thought to be of aeolian origin. Mapping elucidated the boundary between two mounta

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Pagé, Lilianne, and Keiko Hattori. "Abyssal Serpentinites: Transporting Halogens from Earth’s Surface to the Deep Mantle." Minerals 9, no. 1 (2019): 61. http://dx.doi.org/10.3390/min9010061.

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Serpentinized oceanic mantle lithosphere is considered an important carrier of water and fluid-mobile elements, including halogens, into subduction zones. Seafloor serpentinite compositions indicate Cl, Br and I are sourced from seawater and sedimentary pore fluids, while F may be derived from hydrothermal fluids. Overall, the heavy halogens are expelled from serpentinites during the lizardite–antigorite transition. Fluorine, on the other hand, appears to be retained or may be introduced from dehydrating sediments and/or igneous rocks during early subduction. Mass balance calculations indicate

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Silva, Adolfo, Tiago Duque, and Felipe Alves. "INTERPRETATION OF RADIOMETRIC RATIOS AND MAGNETIC ANOMALIES FROM MORRO FEIO ULTRAMAFIC COMPLEX, CENTRAL-WESTERN BRAZIL." Brazilian Journal of Geophysics 37, no. 3 (2019): 309. http://dx.doi.org/10.22564/rbgf.v37i3.2010.

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ABSTRACTThis study was performed to identify magnetic structures in depth and radiometric responses within and around Morro Feio Ultramafic Complex (MFUC) from the airborne geophysical (gamma–ray spectrometry and magnetic) data. Using processing techniques and profiles analysis, we have found eight gamma–ray spectrometry signatures and twenty–seven magnetic anomalies. The radiometric signatures are basically characterized by a K and eU relative enrichment in detriment eTh, with two of these signatures also characterized by K relative enrichment in detriment eU. Based on published works, we hav

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Acevedo Gómez, Natalia, Marion Weber Scharff, Antonio García-Casco, and Juanita Sáenz-Samper. "PLACAS ALADAS DE LAS SOCIEDADES NAHUANGE Y TAIRONA (100–1600 DC), SIERRA NEVADA DE SANTA MARTA, COLOMBIA: MATERIA PRIMA Y ÁREAS DE PROCEDENCIA." Latin American Antiquity 29, no. 4 (2018): 774–92. http://dx.doi.org/10.1017/laq.2018.51.

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En la expresión material de las sociedades prehispánicas que habitaron la Sierra Nevada de Santa Marta (SNSM), Colombia, durante los periodos cronológicos Nahuange (100–1000 dC) y Tairona (1000–1600 dC) se aprecia una amplia variedad de objetos elaborados en piedra verde. Entre estos se destacan placas aladas alargadas, posiblemente talladas con una intención simbólica asociada a un tipo de materia prima específica. Placas aladas de formas similares se han reportado en amplias regiones del norte de Colombia y Venezuela, Panamá, Costa Rica y el Caribe. En este trabajo, la identificación de la m

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8

Marzini, Lorenzo, Marco Iannini, Giovanna Giorgetti, et al. "Asbestos Hazard in Serpentinite Rocks: Influence of Mineralogical and Structural Characteristics on Fiber Potential Release." Geosciences 14, no. 8 (2024): 210. http://dx.doi.org/10.3390/geosciences14080210.

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Naturally occurring asbestos (NOA) represents a matter of social and environmental concern due to its potential release in the atmosphere during rock excavation and grinding in quarry and road tunnel activities. In most cases, NOA occurs in serpentinites, i.e., rocks deriving from low-grade metamorphic hydration of mantle peridotites. The potential release of asbestos fibers from serpentinite outcrops depends on several features, such as serpentinization degree, rock deformation, weathering, and abundance of fibrous veins. In this study, we selected a set of serpentinite samples from a represe

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Kozhoukharova, Evgenia. "Precambrian obducted serpentinites in the Rhodope Massif." Review of the Bulgarian Geological Society 82, no. 1 (2021): 63–73. http://dx.doi.org/10.52215/rev.bgs.2021.82.1.2.

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The Precambrian metamorphic complex in the Rhodope Massif is built of two lithostratigraphic units: the lower is an ancient granite-gneiss continental crust – Prarhodopian Group (PRG), and the upper one – a Neoproterozoic metamorphosed volcano-sedimentary rock complex – Rhodopian Group (RG). The lower stratigraphic levels of the RG are occupied by an ophiolitic association consisting of serpentinites, amphibolites, and metagabbros. The serpentinites constantly occupy the same level between the continental gneisses surface of the PRG and the base of the RG. The high degree of serpentinization (

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10

Pieczka, Adam, Mark A. Cooper, and Frank C. Hawthorne. "Lepageite, Mn32+(Fe73+Fe42+)O3[Sb53+As83+O34], a new arsenite-antimonite mineral from the Szklary pegmatite, Lower Silesia, Poland." American Mineralogist 104, no. 7 (2019): 1043–50. http://dx.doi.org/10.2138/am-2019-6903.

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Abstract Lepageite, a new arsenite-antimonite mineral, was discovered in a granitic pegmatite hosted by serpentinites of the Szklary massif, Lower Silesia, southwest Poland. Lepageite is a primary mineral formed during injection of an evolved LCT-type melt related to anatectic processes within the metasedimentary-metavolcanic complex of the nearby Góry Sowie Block, ~380 Ma, into serpentinite of the Szklary massif and its contamination by fluid-mobile serpentinite-hosted elements, among others As and Sb, transported in the form of H2AsO3− and HSbO2 species at pH ≈ 9–11 and a low redox potential

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Manuella, F. C. "Can nanodiamonds grow in serpentinite-hosted hydrothermal systems? A theoretical modelling study." Mineralogical Magazine 77, no. 8 (2013): 3163–74. http://dx.doi.org/10.1180/minmag.2013.077.8.10.

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AbstractNanodiamonds can be synthesized hydrothermally in the laboratory by using a C-O-H fluid in the graphite stability field, in which the graphite/nanodiamond transition depends on the crystal size as a function of temperature. In nature, the hydrothermal circulation of seawater in serpentinites plays an important role in the carbon speciation in the oceanic crust and exposed mantle, in which hydrocarbons (mainly CH4) of abiogenic origin (via Fischer-Tropsch-type reaction) and occasionally graphite particles are detected. Can nanodiamonds nucleate and grow in serpentinite-hosted hydrotherm

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Khalid, Muhammad Reyza, Fadhli Syamsudin, Nasrullah Zaini, and Didik Sugiyanto. "Application of 2D resistivity method to determine serpentinite rocks in Kuta Cot Glie, Aceh Besar." Journal of Aceh Physics Society 10, no. 1 (2020): 12–16. http://dx.doi.org/10.24815/jacps.v10i1.17904.

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Abstrak. Kuta Cot Glie di Aceh Besar, merupakan salah satu daerah yang memiliki potensi batuan metamorf serpentinit. Batuan ini dapat digunakan sebagai bahan baku untuk pembuatan pupuk, batu hias, dan beberapa manfaat lainnya. Penelitian ini bertujuan untuk menginterpretasi model bawah permukaan dan memperkirakan ketebalan lapisan batuan serpentinit. Metode geofisika yang digunakan adalah metode geolistrik resistivitas dengan konfigurasi Wenner-Schlumberger. Pengukuran dilakukan pada dua lintasan sepanjang 275 m untuk masing-masing lintasan dengan 56 buah elektroda dan jarak spasi setiap elekt

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Lamzamuan, G., Sorokhaibam Kavita Devi, and Liza Gogoi. "Unraveling the Protolith Origin of Serpentinite Rocks from the Tengnoupal Area, Manipur Ophiolite Complex, Indo-Myanmar Range." Indian Journal Of Science And Technology 17, no. 36 (2024): 3719–32. http://dx.doi.org/10.17485/ijst/v17i36.2279.

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Objective: This article mainly focuses on investigating the protolith origin of serpentinite rocks in and around Tengnoupal, within the Manipur Ophiolite Complex (MOC), using a combined petrographic and geochemical approach. Methods: During fieldwork, samples were collected and cut into thin sections to reveal their mineralogical and textural relationships. Major oxides and trace elements were determined by XRF, and rare earth elements analysis was carried out by ICP-MS to determine the nature and origin of the rocks. Findings: The studied rock samples exhibit varying degrees of serpentinizati

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Masoud, Mostafa A., Ahmed M. El-Khayatt, Mohamed G. Shahien, Bottros R. Bakhit, Ibrahim I. Suliman, and Ahmed M. Zayed. "Radiation Attenuation Assessment of Serpentinite Rocks from a Geological Perspective." Toxics 10, no. 11 (2022): 697. http://dx.doi.org/10.3390/toxics10110697.

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Serpentinites are metamorphic rocks that are widely applied as aggregates in the production of radiation-shielding concrete. Different varieties of massive serpentinite mountains located in Egypt exist without real investment. Hence, this study aims to evaluate the radiation shielding efficacy of three varieties of serpentinite rocks from different geological perspectives: mineralogical, geochemical, and morphological characteristics. X-ray diffraction, transmitted-light microscopy, and thermal analysis were required to characterize their mineralogical composition, while X-ray fluorescence was

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15

Mayhew, Lisa E., and Eric T. Ellison. "A synthesis and meta-analysis of the Fe chemistry of serpentinites and serpentine minerals." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2165 (2020): 20180420. http://dx.doi.org/10.1098/rsta.2018.0420.

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The iron chemistry of serpentinites and serpentine group minerals is often invoked as a record of the setting and conditions of serpentinization because Fe behaviour is influenced by reaction conditions. Iron can be partitioned into a variety of secondary mineral phases and undergo variable extents of oxidation and/or reduction during serpentinization. This behaviour influences geophysical, geochemical and biological aspects of serpentinizing systems and, more broadly, earth systems. Iron chemistry of serpentinites and serpentines is frequently analysed and reported for single systems. Interpr

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Smoliński, Wojciech, Lucyna Natkaniec-Nowak, Wiesław Heflik, et al. "The origin of the serpentinite enclaves in metacarbonates of the Sa Nghia area in the Kon Tum Massif, Central Vietnam." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 298, no. 1 (2020): 17–33. http://dx.doi.org/10.1127/njgpa/2020/0930.

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Metacarbonate rocks surrounded by schists, amphibolites and quartzites, occur abundantly in the Sa Nghia – Ho Moong area of Kham Duc Complex in the Kon Tum Massif (Central Vietnam). They contain serpentinite enclaves, which form different bodies such as: sharp-edged rock fragments, lenses, thin layers or small nests often transecting the background of host metacarbonates. The enclaves are mainly built of antigorite. Thin veins crosscutting the serpentinites are commonly filled with microcrystalline carbonates. The relics of olivine and clinopyroxene as well as flaky talc, magnetite, ilmenite,

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G, Lamzamuan, Kavita Devi Sorokhaibam, and Gogoi Liza. "Unraveling the Protolith Origin of Serpentinite Rocks from the Tengnoupal Area, Manipur Ophiolite Complex, Indo-Myanmar Range." Indian Journal of Science and Technology 17, no. 36 (2024): 3719–32. https://doi.org/10.17485/IJST/v17i36.2279.

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Abstract <strong>Objective:</strong> This article mainly focuses on investigating the protolith origin of serpentinite rocks in and around Tengnoupal, within the Manipur Ophiolite Complex (MOC), using a combined petrographic and geochemical approach. <strong>Methods:</strong> During fieldwork, samples were collected and cut into thin sections to reveal their mineralogical and textural relationships. Major oxides and trace elements were determined by XRF, and rare earth elements analysis was carried out by ICP-MS to determine the nature and origin of the rocks. <strong>Findi

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18

Sideridis, Alkiviadis, Vasiliki Anevlavi, Stylianos F. Tombros, et al. "Developing a Provenance Framework for Ancient Stone Materials: A Subduction-Related Serpentinite Case Study from Tinos, Cyclades, Greece." Minerals 15, no. 6 (2025): 568. https://doi.org/10.3390/min15060568.

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Serpentinite is a common lithology in Greece with significant geotectonic and petrogenetic implications, yet its archaeometric study remains limited. This also applies to the Ras serpentinite outcrop on Tinos Island—an enigmatic ancient quarry with no prior documentation of its exploitation. This study aims to provide a holistic provenance analysis and full material characterization to establish a unique fingerprint for future comparative research. A multidisciplinary methodology was applied, including petrography, XRD, FTIR, BET, LA-ICP-MS, electron microprobe analyses, and lichenometry—the l

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Silantyev, S. A., A. I. Buikin, A. R. Zhovrebova, V. V. Shabykova, and V. E. Bel’tenev. "Variations in the Composition of MORB Chilled Glasses from the Mid-Atlantic Ridge, 12°–31° N: Reflection of Composition Evolution of Parent Melts and the Influence of the Hydrothermal Component." Петрология 31, no. 5 (2023): 463–81. http://dx.doi.org/10.31857/s0869590323050059.

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The geochemical peculiarities of sample collection of MORB chilled glasses obtained in six areas of the axial zone of the Mid-Atlantic Ridge (MAR), 12°–31° N have been studied. The results of this study provided information on the composition of the parent melts for these glasses and made it possible to assess probable geochemical effects reflecting the interaction of magmatic melts with hydrothermal systems of the MAR axial zone or with altered oceanic crust (AOC). It is shown that basalts of the E-MORB family which includes most of samples are localized mainly in the “cold” segments of the M

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Kazakova, M. N., A. A. Eminov, and I. K. Shokоsimov. "CHEMICAL-MINERALOGICAL STUDY OF BASALT AND SERPENTINITE FOR OBTAINING MINERAL FIBER." Steklo i Keramika, no. 16 (April 2023): 40–45. http://dx.doi.org/10.14489/glc.2023.04.pp.040-045.

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The article presents the results of studies on the chemical-mineralogical composition, acidity and viscosity moduli of basalt and serpentinite of the Arvaten deposit. It has been established that the basalts and serpentinites of this deposit can be used as a raw material for the production of stone casting materials, in the form of mineral wool, and with corrective additives are suitable for the production of basalt fiber.

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Hopkinson, L. J., S. Dee, and C. A. Boulter. "Moving reactive interfaces and fractal carbonate replacement patterns in serpentinites: evidence from the southern Iberia Abyssal Plain." Mineralogical Magazine 64, no. 5 (2000): 791–800. http://dx.doi.org/10.1180/002646100549797.

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AbstractSerpentinized ultramafic rocks recovered from beneath the southern Iberia Abyssal Plain (Ocean Drilling Programme Leg 173) provide the first record of fractal carbonate replacement patterns in a serpentinite. The patterns are expressed as microscopic branching aggregates (clusters) of aragonite disseminated throughout the serpentinites. Aragonite growth was the final mineralization event. The aragonite diminishes rapidly in quantity from an essential to a trace component of the serpentinite over a distance of ∼40 m from a normal fault. Decreasing abundance of aragonite away from the no

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Shadrina, S. V., A. A. Redina, and E. A. Romanov. "ON THE NATURE OF HYDROCARBONS IN SERPENTINITES." Geology and mineral resources of Siberia a, no. 4 (2023): 63–76. http://dx.doi.org/10.20403/2078-0575-2023-4a-63-76.

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The article presents the unique results of the study and photographs of the core of serpentinites saturated with hydrocarbons (HC). During the core study, the rock mineral composition was investigated, the order of mineral formation as well as the nature of serpentinite saturation with hydrocarbons was determined,pyrolytic analysis of samples was carried out, and the geothermal history of rocks was assessed. The model of reservoir formation in serpentinites and metasomatites based on them, time and stage of its filling with HC was proposed. It was identified that the serpentinite massif at a c

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Qaoud, Nedal. "Utilization of Space-Borne Imagery for Lithologic Mapping: A Case Study From Um Had Area, Central Eastern Desert, Egypt." Journal of Geography and Geology 6, no. 2 (2014): 113. http://dx.doi.org/10.5539/jgg.v6n2p113.

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Remote sensing data are used to discriminate between the different lithologies covering the Um Had area, Central Eastern Desert of Egypt. Image processing techniques applied to the Enhanced Thematic Mapper (ETM+) data are used for mapping and discriminating the different basement lithologies of Um Had area. Principal component analysis (PCA), minimum noise fraction (MNF) transform and band rationing techniques provide efficient data for lithological mapping. The study area is underlain by gneisses, ophiolitic melange assemblage (talc-serpentinite, metagabbro, metabasalt), granitic rocks, Dokha

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Mart, Yossi. "Serpentinite Diapirs and the Evolution of Oceanic Core Complexes." Environmental Sciences and Ecology: Current Research (ESECR 3, no. 3 (2022): 1–7. http://dx.doi.org/10.54026/esecr/1054.

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Serpentinites and peridotites are the predominant lithological components of Oceanic Core Complexes (OCCs), located commonly at triple junctions of slow-spreading oceanic accreting ridges, fracture zones and transform faults. These lithologies differ from the surrounding oceanic brittle lithosphere, built of basalt and gabbro, and the structural evolution of these OCCs is enigmatic. The present investigation suggests that the tectonics of OCCs is derived from the ascent of serpentinic diapirs generated by the unique proximity of shallow asthenosphere, faulted lithosphere and the juxtaposition

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Scribano, Vittorio, Serafina Carbone, and Fabio Manuella. "Tracking the Serpentinite Feet of the Mediterranean Salt Giant." Geosciences 8, no. 9 (2018): 352. http://dx.doi.org/10.3390/geosciences8090352.

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Interpretation of seismic profiles and results of scientific drillings in the Mediterranean subseafloor provided indication of gigantic salt deposits which rarely crop out on land, such as in Sicily. The salt giants were ascribed to the desiccation, driven by the solar energy, of the entire basin. Nevertheless, the evaporite model hardly explains deep-sea salt deposits. This paper considers a different hypothesis suggesting that seawater reached NaCl saturation during serpentinization of ultramafic rocks. Solid salts and brine pockets were buried within the serpentinite bodies being later (e.g

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Gómez-Herrera, J. E., O. Rodríguez-Morán, S. Valladares-Amaro, et al. "Pronóstico gasopetrolífero en la asociación ofiolítica cubana aplicando modelación matemática." Geofísica Internacional 33, no. 3 (1994): 447–67. http://dx.doi.org/10.22201/igeof.00167169p.1994.33.3.1183.

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Cuba es uno de los pocos lugares en el mundo donde se obtiene producción industrial de petróleo en rocas de la asociación ofiolítica. El primer yacimiento descubierto fue Motembo en 1881 y el más reciente Cantel en el año 1978. Los afloramientos de ofiolita -en su mayoría de serpentinita- pueden medir desde pocos metros hasta varios kilómetros de extensión y están sobrecorridos en dirección de sur a norte, presentado gran tectonismo y metamorfismo superpuesto. Estos yacimientos de poca profundiÂdad presentan grandes débitos de hidrocarburo en su etapa de explotación inicial, el cual migró des

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Carmignano, Ottavio Raul Domenico Riberti, and Paulo Roberto G Brandao. "Employment of serpentinite rock in architecture." Material Science & Engineering International Journal 7, no. 2 (2023): 79–81. http://dx.doi.org/10.15406/mseij.2023.07.00208.

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The serpentinite rock is formed by minerals of the serpentine group, such as antigorite and lizardite, and can be found in several countries around the world. It has several commercial applications, among them its use as an ornamental rock. It can be found in numerous constructions, such as churches, houses and buildings. However, trade names are adopted for ornamental rocks, making it difficult to identify and confirm the existence of the specific rock in buildings. Using bibliographical research, the present work aims to study the use of serpentinite as an ornamental rock, identifying its fi

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Kılıç, Ayşe Didem, and Demet Yılmaz. "Influence of Rare Earth Elements on the Radiation-Shielding Behavior of Serpentinite-Based Materials." Applied Sciences 15, no. 14 (2025): 7837. https://doi.org/10.3390/app15147837.

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In this study, the neutron and gamma radiation-shielding properties of serpentinites from the Guleman ophiolite complex were investigated, and results were evaluated in comparison with rare earth element (REE) content. The linear and mass attenuation coefficients (LAC and MAC), half-value layer (HVL), mean free path (MFP), and effective atomic numbers (Zeff) of serpentinite samples were experimentally measured in the energy range of 80.99–383.85 keV. Theoretical MAC values were calculated. Additionally, fast neutron removal cross-sections, as well as thermal and fast neutron macroscopic cross-

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Dichicco, Maria, Michele Paternoster, Giovanna Rizzo, and Rosa Sinisi. "Mineralogical Asbestos Assessment in the Southern Apennines (Italy): A Review." Fibers 7, no. 3 (2019): 24. http://dx.doi.org/10.3390/fib7030024.

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This paper deals with petrography and mineralogy of serpentinitic rocks occurring in the Southern Apennines (Italy) with the aim to review the already available literature data and furnish new details on asbestos minerals present in the studied area. Two sites of Southern Italy were taken into account: the Pollino Massif, at the Calabrian-Lucanian border, and the surroundings of the Gimigliano and Mt. Reventino areas where serpentinites of Frido Unit are mainly exposed. Textural and mineralogical features of the studied rocks point to a similar composition for both sites including asbestos min

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ASWAD, KHALID J. A., NABAZ R. H. AZIZ, and HEMIN A. KOYI. "Cr-spinel compositions in serpentinites and their implications for the petrotectonic history of the Zagros Suture Zone, Kurdistan Region, Iraq." Geological Magazine 148, no. 5-6 (2011): 802–18. http://dx.doi.org/10.1017/s0016756811000422.

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AbstractAccessory chrome spinels are scattered throughout the serpentinite masses in two allochthonous thrust sheets belonging to the Penjween–Walash sub-zone of the northwestern Zagros Suture Zone in Kurdistan. Based on field evidence, the serpentinites are divided into two groups: (1) highly sheared serpentinites (110–80 Ma), which occupy the lower contact of the ophiolitic massifs of the Upper Allochthonous sheet (Albian–Cenomanian age), and (2) ophiolitic mélange serpentinites of mixed ages (150 and 200 Ma) occurring along thrust faults on the base of the volcano-sedimentary segment (42–32

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Taalab, Sherif A., Ahmed M. Abdel-Rahman, Hamada El-Awny, et al. "Petrogenesis and Tectonic Evolution of Kab Amiri Ophiolites and Island-Arc Assemblages, Central Eastern Desert, Egypt: Petrological and Geochemical Constraints." Minerals 13, no. 4 (2023): 528. http://dx.doi.org/10.3390/min13040528.

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The Kab Amiri area in the Central Eastern Desert (CED) of Egypt comprises ophiolitic rocks, island arc metasediments, and granitic rocks. This study deals with the petrography and geochemistry of the ophiolitic and island arc rocks to understand their petrogenesis and geodynamic evolution of the CED ophiolitic belt. The Kab Amiri ophiolite is dismembered, comprising serpentinites and metabasalt (spilite). Serpentinites have low contents of Al2O3 (1.14 wt%) and CaO (0.65 wt%), suggesting they are depleted peridotite protoliths (e.g., depleted harzburgites to dunites). The high L.O.I. value (13.

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Кozhoukharova, Evgenia. "Impact of the body waves on the serpentine structure." Review of the Bulgarian Geological Society 81, no. 3 (2020): 81–83. http://dx.doi.org/10.52215/rev.bgs.2020.81.3.81.

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A rare case of rhythmic banded eclogitization on serpentinites in crustal condition (3 km south of Avren village, Krumovgrad district), is interpreted as an effect of seismic impact. Bands of garnet lherzolites (2–5 cm) alternate with strips of unchanged serpentinite. The bands consist of pyrope, diopside, enstatite, olivine, spinel, crystallized at Т 560–820 oC and P 8–15 kbar. The longitudinal P-waves create zones of dilatation in the serpentine structure where the bonds were broken. After crystallization of mobilized particles a stripped texture was formed.

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Malinconico, Sergio, Federica Paglietti, Sergio Bellagamba, et al. "A preliminary study on real-time asbestos recognition in tunnel spoil of green stones." Detritus, no. 29 (November 19, 2024): 88–97. https://doi.org/10.31025/2611-4135/2024.19441.

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This study focuses on the analysis of serpentinite rocks to detect asbestos minerals, with a particular emphasis at discriminating chrysotile from other minerals and matrices (antigorite, lizardite) in serpentinites. The primary objective of this exploratory study is to lay the groundwork for the development of an innovative system for real-time identification of asbestos on the surface of materials and rocks. In more detail, the study emphasizes the advantages of utilization of rapid and reliable portable instrumentation, aided by machine learning (ML) techniques. Serpentinite rock debris fro

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Rizzo, Giovanna, Roberto Buccione, Marilena Dichicco, Rosalda Punturo, and Giovanni Mongelli. "Petrography, Geochemistry and Mineralogy of Serpentinite Rocks Exploited in the Ophiolite Units at the Calabria-Basilicata Boundary, Southern Apennine (Italy)." Fibers 11, no. 10 (2023): 81. http://dx.doi.org/10.3390/fib11100081.

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A multi-analytical study on serpentinites in the ophiolite units (Calabria-Basilicata boundary, southern Apennines) was carried out on samples collected from a serpentinite quarry, locally called “Pietrapica”, which sitsin the Pollino UNESCO Global Geopark. Optical microscopy observations revealed the petrographic characteristics, ICP-MS was used to assess the chemical composition while EMPA mineral chemistry, Raman spectroscopy and X-Ray Powder Diffraction and were used altogether to trace the mineral composition of the rocks. Petrography revealed that serpentinites from Pietrapica quarry are

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Kozhoukharova, Evgenia, and Jordan M. Jordanov. "Serpentinites as a potential source of geological hydrogen." Review of the Bulgarian Geological Society 85, no. 3 (2024): 144–46. https://doi.org/10.52215/rev.bgs.2024.85.3.144.

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Molecular H2 “white“ hydrogen is a naturally occurring geological hydrogen found in underground deposits. Discovered in recent years, it is considered the new hope for clean energy and its deposits in many regions open a new opportunity for the global energy supply system. The problem has been discussed in many publications by leading economies of the word. It is found in various rocks but the highest contents show the serpentinites which appear as collectors due to the specific crystal structure. In the metamorphic complexes of Bulgaria, large serpentinite massifs have been established which

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Lytkina, Evgeniya, Arzhana Ochur-ool, and Ivan Sebelev. "COMPOSITE BINDER ON THE BASIS SERPENTINITE ROCKS AND PORTLAND CEMENT." News of higher educational institutions. Construction, no. 12 (768) (December 1, 2022): 23–28. http://dx.doi.org/10.32683/0536-1052-2022-768-12-23-28.

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The relevance of resource conservation in recent decades increases, in connection with which it is necessary to carry out rational environmental management of the region as part of its sustainable development. In the Republic of Tuva, mining and processing plants accumulate a large amount of magnesium-containing rocks contaminated with a significant amount of impurities, and substandard overburden. The use of such technogenic raw materials for the production of building materials helps to reduce the environmental burden in the region. The most suitable rocks for further use are serpentinites.

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Gasser, Ubald G., Stephan J. Juchler, Hans Sticher, and William A. Hobson. "The fate of chromium and nickel in subalpine soils derived from serpentinite." Canadian Journal of Soil Science 75, no. 2 (1995): 187–95. http://dx.doi.org/10.4141/cjss95-026.

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Weathering of serpentinitic parent material, naturally rich in both Cr and Ni, provides soils that generally contain elevated concentrations of both metals. In this study, soil development as well as the fate of Cr and Ni in Dystric Eutrochrepts derived from serpentinitic rock slide material were investigated in the Swiss Alps under subalpine climatic conditions. Exchangeable Ni was ≤ 0.2 mmol kg−1, but exchangeable Cr was always < 0.01 mmol kg−1. Linear correlation between dithionite-extractable Cr and Fe was positive, but negative between pyrophosphate extractable Cr and total soil carbon

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AZIZ, NABAZ R. H., KHALID J. A. ASWAD, and HEMIN A. KOYI. "Contrasting settings of serpentinite bodies in the northwestern Zagros Suture Zone, Kurdistan Region, Iraq." Geological Magazine 148, no. 5-6 (2011): 819–37. http://dx.doi.org/10.1017/s0016756811000409.

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AbstractProtrusions and lenses of serpentinite–matrix mélanges occur at several places along the thrust faults of the Zagros Suture Zone. They separate the lower allochthonous thrust sheet, the ‘Lower Allochthon’ (i.e. Walash–Naopurdan nappe), of Paleocene–Eocene age from sediments of the Arabian platform and the upper thrust sheet of Mesozoic, ophiolite-bearing terranes termed the ‘Upper Allochthon’ (i.e. Gemo–Qandil nappe). The serpentinite–matrix mélanges occur mostly as stretched bodies (slices) on both sides of the Lower Allochthon (Hero, Halsho and Pushtashan (HHP) and Galalah, Qalander

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Popov, Yurii V., Olga E. Pustovit, and Sergej V. Levchenko. "Geodynamic Complex of Apohyperbasites of the Zone of the Peredovoy Ridge of the Greater Caucasus." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 2 (214) (June 30, 2022): 85–92. http://dx.doi.org/10.18522/1026-2237-2022-2-85-92.

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Apohyperbasite complexes are important indicators of geodynamic settings, their features indicate both the composition of the mantle substrate and the parameters of crustal metamorphism. In the structure of the folded-boulder structure of the Greater Caucasus, apohyperbasites are mainly associated with the Hercynian structural-tectonic zone of the Peredovoy Range, where the bulk of serpentinites is conventionally attributed to the late Proterozoic and combined into the Bedene complex. Electron probe and X-ray phase analyzes of serpentinites and accessory chromespinelides make it possible to de

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Katzir, Yaron, Alan Matthews, Zvi Garfunkel, Manfred Schliestedt, and Dov Avigad. "The tectono-metamorphic evolution of a dismembered ophiolite (Tinos, Cyclades, Greece)." Geological Magazine 133, no. 3 (1996): 237–54. http://dx.doi.org/10.1017/s0016756800008992.

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AbstractThe six exposures of the Upper tectonic Unit of the Cycladic Massif occurring on the island of Tinos are shown to comprise a metamorphosed dismembered ophiolite complex. The common stratigraphic section consisting of tens-of-metres- thick tectonic slices of mafic phyllites overlain by serpentinites and gabbros is considered to have been derived by a combination of thrusting during obduction and subsequent attenuation by low-angle normal faults. All rock types show evidence of a phase of regional greenschist-facies metamorphism, which in the case of the phyllites is accompanied by penet

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Ilham, Muhammad, Henri Sampe, Ardani Patanduk, M. Haikal Al Mubarok, and Nanang Ridho S. "PENGARUH BATUAN DASAR DAN KELERENGAN TERHADAP KADAR DAN KETEBALAN NIKEL LATERIT STUDI KASUS DAERAH PETASIA, MOROWALI UTARA." JURNAL TEKNIK GEOLOGI : Jurnal Ilmu Pengetahuan dan Teknologi 4, no. 2 (2021): 23. http://dx.doi.org/10.30872/jtgeo.v4i2.5452.

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Pembentukan endapan nikel laterit dipengaruhi oleh beberapa faktor diantaranya batuan dasar dan kelerengan. Penelitian ini dilakukan untuk mengetahui pengaruh jenis batuan dasar dan kelerengan terhadap kadar dan ketebalan Ni di daerah telitian. Daerah telitian terletak di daerah Petasia, Morowali Utara. Metode penelitian yang dilakukan meliputi studi pustaka, pemetaan geologi, analisis petrografi, analisis kelerengan serta analisis geokimia data bor. Batuan dasar daerah telitian disusun oleh satuan peridotit terserpentinisasi dan serpentinit, dimana peridotit terserpentinisasi tersusun atas mi

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Srikantia, S. V., and S. S. Bose. "Archaean Komatiites from Banasandra Area of Kibbanahalli Arm Of Chitradurga Supracrustal Belt in Karnataka." Journal Geological Society of India 26, no. 6 (1985): 407–17. http://dx.doi.org/10.17491/jgsi/1985/260605.

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Abstract The Banasandra Komatiites occur within the Kibbanahalli arm of the Chitradurga supracrustal Belt in Karnataka. They apparently overlie the Bababudan Group and the Peninsular Gneiss and occur in two isolated exposures, (i) east of Birasandra, and (ii) near Kodihalli - Kunikenahalli. Ultramafic rock types include pillowed serpentinites, spinifex-textured komatiite, massive and schistose serpentinite and talc-tremolite-chlorite schist. Certain quartz-antigorite (birbirite ?), quartz-amphibole, and high-magnesian chlorite rocks are also closely associated with the ultramafics. The major e

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Monali, V. Chavan* Prof. Poonam P. Khade Dr. Megha T. Salve. "Utilization Of Radix Rauwolfia As Therapeutic Agent: A Comprehensive Review." International Journal in Pharmaceutical Sciences 1, no. 11 (2023): 293–300. https://doi.org/10.5281/zenodo.10136807.

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Rauwolfia serpentina is an important medicinal plant in the pharmaceutical world due to the presence of its immense therapeutic properties. The plant is known for curing various disorders because of the presence of alkaloids, carbohydrates, flavonoids, glycosides, phlobatannins, phenols, resins, saponins sterols, tannins and terpenes. The plant parts, root and rhizome have been used since centuries in Ayurvedic medicines for curing a large number of diseases such as high blood pressure, mental agitation, epilepsy, traumas, anxiety, excitement, schizophrenia, sedative insomnia and insanity. The

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Sheiko, V. V., V. Yu Barkalov, and К. А. Korznikov. "Flora of Mayorsky Mountain Massif of Susunay Ridge (Southern Sakhalin)." Ботанический журнал 109, no. 3 (2024): 258–71. http://dx.doi.org/10.31857/s0006813624030034.

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The local flora of vascular plants of Mayorsky Mountain Massif of Susunay Ridge in the southern part of Sakhalin Island contains 230 species from 171 genera and 71 families. For the first time, 50 species are listed for the massif. The flora of serpentinite outcrops is especially specific. Plant communities on the serpentinites are dominated by species with wide geographical areas (circumpolar, Eurasian, Asian and East Asian), whose share is more than 70% of the total local flora, which is a reflection of the geological past in the process of the alpine flora formation on Sakhalin Island. Ther

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Imamalipour, Ali, Samaneh Barak, and Farzaneh Mami Khalifani. "Quantifying mass changes during hydrothermal alteration in listwaenite-type mercury mineralization, Tavreh area, northwestern Iran." Geochemistry: Exploration, Environment, Analysis 20, no. 4 (2020): 425–39. http://dx.doi.org/10.1144/geochem2020-004.

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The Tavreh mercury prospect, a listwaenite-type alteration/mineralization system, is located c. 90 km west of Khoy in northwestern Iran. Tavreh is hosted within the Khoy ophiolite zone. Three types of listwaenites have been recognized in the Khoy ophiolite: silica, silica-carbonate and carbonate. Of these three, Hg mineralization at Tavreh is spatially and genetically associated with the silica-type listwaenite, also known as berberite. Alteration and mineralization at Tavreh are restricted to a faulted contact between shale and serpentinite. The Tavreh listwaenite is inferred to form from the

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LIMA, Filipe Goulart, Ilio Rodarte FARIA JUNIOR, Antenor ZANARDO, Gergely Andres Julio SZABÓ, and Cibele Carolina MONTIBELLER. "CARACTERIZAÇÃO TEXTURAL E MINERALÓGICA DAS ROCHAS DO MORRO DO NÍQUEL (MG) E CORRELAÇÕES COM O PROCESSO DE SERPENTINIZAÇÃO." Geosciences = Geociências 40, no. 3 (2021): 567–81. http://dx.doi.org/10.5016/geociencias.v40i04.15625.

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O Morro do Níquel, maciço serpentinítico situado na extensão sul da Faixa Brasília Meridional, no contexto da Nappe de Passos, foi objeto de estudo mineralógico e textural detalhado, desenvolvido com base em testemunho de sondagem, visando caracterizar os litotipos ali presentes. Esse corpo apresenta formato elipsoidal, com dimensões de 400 x 800 metros e espessura superior a 300 metros, constituído, unicamente, por serpentinito. Esses serpentinitos apresentam predominância de texturas mesh, mesh-ribbon e ribbon, constituídas de lizardita/crisotilo e pseudomorfos que remetem a cristais reliqui

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Cvjeticanin, Rade, Marijana Novakovic, and Marko Perovic. "Beech and fir association (Abieti-Fagetum serpentinicum Beus 1980) on Suvobor." Bulletin of the Faculty of Forestry, no. 103 (2011): 147–56. http://dx.doi.org/10.2298/gsf1103147c.

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The association of beech and fir was researched on Mt. Suvobor, on serpentinite bedrock. In the past, the beech and fir forest on Suvobor was not studied, it was just referred to, so the objective of this paper was to study the floristic characteristics of this forest, which will enable its ecological-vegetational differentiation and widen the knowledge on beech and fir associations on serpentinites. The studied plant community is characterised by poor floristic composition and by the absolute domination of fir in the tree layer. In the life form spectrum, the dominant plants are phanerophytes

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Leblanc, Marc. "Co–Ni arsenide deposits, with accessory gold, in ultramafic rocks from Morocco." Canadian Journal of Earth Sciences 23, no. 10 (1986): 1592–602. http://dx.doi.org/10.1139/e86-149.

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A type of Co–Ni arsenide deposit with accessory gold and no silver can be recognized in ultramafic massifs of upper mantle origin. The Bou Azzer deposits (50 000 t Co) are distributed along the borders of serpentinite massifs in an Upper Proterozoic ophiolite (Anti-Atlas, Morocco). They consist of quartz–carbonate lenses with Co (Ni–Fe) arsenides. Gold is related to the skutterudite (8–15 ppm average content). In the Alpine lherzolite massif of Beni Bousera (Rif, Morocco) are found small chromite–Ni arsenides veins (300 t Ni) with accessory gold. They are associated with late orthopyroxene–ver

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Lavoie, Denis, and Guoxiang Chi. "An Ordovician “Lost City” — venting serpentinite and life oases on Iapetus seafloor." Canadian Journal of Earth Sciences 47, no. 3 (2010): 199–207. http://dx.doi.org/10.1139/e10-013.

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Highly brecciated carbonate-rich serpentinites (or ophicalcites) of Early Ordovician age in the Dunnage Zone of Quebec are host to fracture-fill, high-temperature (80–230 °C) carbonate cements. Away from, or crosscut by the fractures, centimetre- to decimetre-thick crusts made up of massive to laminated micrite, peloidal layers and threads are associated with low-temperature botryoidal calcite cements. The peloidal masses are characterized by a clotted texture that is reminiscent of interpreted fossilized Ordovician microbial communities. The ophicalcite contains carbonate botryoids, morpholog

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Enzhievskaya, Irina, Nina Vasilovskaya, and Vadim Savchenko. "Activated ceramic compositions with the addition of serpentinite." MATEC Web of Conferences 212 (2018): 01019. http://dx.doi.org/10.1051/matecconf/201821201019.

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The article describes the loam of the Kubekovsky deposit of the Krasnoyarsk Territory, which is widely used in the production of ceramic bricks in factories that produce wall materials. In the studies described in the article, mechanoactivation and modification were used to improve its technological and physico-mechanical characteristics. Mechanoactivation was carried out in a hydrodynamic dispersant. As the additive-modifier used waste stoneplant serpentinites of the Perevalnoye deposit. The effect of the additive-modifier on the properties of ceramic compositions is shown. It is shown that a

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