Relevant bibliographies by topics / Ultramafic rock

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Ultramafic rock'

Author: Grafiati
Published: 9 March 2023
Last updated: 31 July 2025

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Journal articles on the topic "Ultramafic rock"

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Jahidin, LO Ngkoimani, LM Iradat Salihin, et al. "Analysis of Ultramafic Rocks Weathering Level in Konawe Regency, Southeast Sulawesi, Indonesia Using the Magnetic Susceptibility Parameter." Journal of Geoscience, Engineering, Environment, and Technology 5, no. 2 (2020): 73–81. http://dx.doi.org/10.25299/jgeet.2020.5.2.4247.

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The Konawe region is part of the Sulawesi Southeast Arm ophiolite belt where ultramafic rocks are exposed in the form of dunite and peridotite. The formation of nickel deposits is closely related to the weathering process of ultramafic rocks as a source rock. Ultramafic rocks exposed to the surface will experience weathering which is influenced by many factors, including in the form of climate change, topography, and existing geological structures.
 The weathering process in the source rock can influence variations in chemical elements and magnetic properties in laterite soil profiles. Fo
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Guice, George L., Michael R. Ackerson, Robert M. Holder, et al. "Suprasubduction zone ophiolite fragments in the central Appalachian orogen: Evidence for mantle and Moho in the Baltimore Mafic Complex (Maryland, USA)." Geosphere 17, no. 2 (2021): 561–81. http://dx.doi.org/10.1130/ges02289.1.

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Abstract Suprasubduction zone (SSZ) ophiolites of the northern Appalachians (eastern North America) have provided key constraints on the fundamental tectonic processes responsible for the evolution of the Appalachian orogen. The central and southern Appalachians, which extend from southern New York to Alabama (USA), also contain numerous ultramafic-mafic bodies that have been interpreted as ophiolite fragments; however, this interpretation is a matter of debate, with the origin(s) of such occurrences also attributed to layered intrusions. These disparate proposed origins, alongside the range o
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Hasria, Erzam S. Hasan, Deniyatno, L. M. Iradat Salihin, and Asdiwan. "Characteristics of Ultramafic Igneous Rock Ofiolite Complex in Asera District, North Konawe Regency Southeast Sulawesi Province." Journal of Geoscience, Engineering, Environment, and Technology 5, no. 3 (2020): 121–26. http://dx.doi.org/10.25299/jgeet.2020.5.3.4113.

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The research area is located in Asera District, North Konawe Regency, Southeast Sulawesi Province which has ultramafic rock lithology. The purpose of this study is to determine the characteristics of ultramafic igneous rocks using petrographic and geochemical analysis. Petrographic analysis aims to determine the types and abundance of minerals present so that rock types can be determined based on the classification of Travis (1955) and Streckeisen (1976). The geochemical analysis aims to determine the oxide/major element so that it can determine the type of magma based on the AFM classificatio
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Edgar, A. D., L. A. Pizzolato, and G. M. Butler. "Petrology of the ultramafic lamprophyre and associated rocks at Coral Rapids, Abitibi River, Ontario." Canadian Journal of Earth Sciences 31, no. 8 (1994): 1325–34. http://dx.doi.org/10.1139/e94-115.

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An ultramafic lamprophyre sill and dikes, and an olivine–melilite-rich dike rock intrude Lower to Middle Devonian sediments and low- to high-grade Archean metamorphic rocks on the west bank of the Abitibi River, Coral Rapids, Ontario. Although previously considered to be kimberlitic, all these rocks contain olivine + clinopyroxene + phlogopite ± melilite, and hence are ultramafic alkaline rocks. The ultramafic lamprophyre can be distinguished from the dike by its lower SiO2, Na2O, Al2O3, and higher MgO and FeO. In contrast the olivine–melilite dike rock has a more uniform composition, characte
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Taksavasu, Tadsuda. "Petrographic Analysis of Mafic and Ultramafic Rocks in Northern Thailand: Implications for CO2 Mineralization and Enhanced Rock Weathering Approach." Geosciences 15, no. 3 (2025): 89. https://doi.org/10.3390/geosciences15030089.

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Mafic and ultramafic rocks have become a promising approach for atmospheric carbon dioxide (CO2) reduction, as they are major sources of CO2-reactive minerals, i.e., olivine, pyroxene, plagioclase, and serpentine. The minerals potentially sequester CO2 by turning it into a stable solid phase through carbon mineralization in the rock weathering process. However, detailed descriptions and evaluations of the target formations are lacking. This study investigates the mineralogical composition and microtextural characteristics of representative mafic and ultramafic rocks observed in northern Thaila
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ZINCHUK, NIKOLAY. "Specific features of petrographic study of kimberlite." Domestic geology, no. 6 (January 10, 2023): 34–49. http://dx.doi.org/10.47765/0869-7175-2022-10033.

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Based on the analysis of specific actual and analytical material capabilities and perspectives of petrographic and petrological investigations of kimberlite rocks are indicated. Kimberlite is a volcanic igneous rock, undersaturated by silica, enriched in volatiles of peralkaline ultramafic hybrid formations, containing mantle and crust material in varying quantities and ratios. Mantle material in kimberlite is represented by xenoliths of ultramafic, alkali-rich mafic-ultramafic rocks and xeno-minerals from them.
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Hasria, Febiyanti, Masri, et al. "Serpentinization Study On Ultramafic Rock at Morombo Area, Lasolo Islands District, North Konawe Regency, Southeast Sulawesi, Indonesia." Journal of Geoscience, Engineering, Environment, and Technology 7, no. 1 (2022): 15–20. http://dx.doi.org/10.25299/jgeet.2022.7.1.6643.

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The research is in Morombo area, North Konawe Regency, Southeast Sulawesi. The purpose of this study was to determine the characteristics of serpentinized ultramafic rock and serpentine paragenesis. Research was conducted using field observations and laboratory analysis consisting of petrographic and geochemical analysis in the form of X-Ray Fluorosence (XRF). Petrographic analysis was carried out to identify the mineral content and textures in the rock and to determine the percentage of serpentine mineral presence. Both of these rocks are petrographically dominated by primary minerals olivine
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Subba Rao, D. V., and S. M. Naqvi. "Archaean Komatiites from the Older Schist Belt of Kalyadi in Western Dharwar Craton, Karnataka." Journal Geological Society of India 53, no. 3 (1999): 347–54. http://dx.doi.org/10.17491/jgsi/1999/530307.

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Abstract The cluster of enclaves at Kalyadi, Hassan district includes ultramafic-mafic metavolcanic rocks and minor metasedimentary rocks such as chert, cherty quartzite and pelite. Occurrence of pillow and vesicular structures in the ultramafic rocks is being reported for the first time from this area. The average composition of the ultramafic rocks is : SiO2 46.05%, TiO2 0.18%, MgO 31.81%, K2O 0.15%. Cr 3409 ppm and Ni 1610 ppm with a CaO/Al2O3) ratio close tol. The composition, relict igneous structures and metasedimentary rock association are suggestive of a komatiitic affinity for these r
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Erskine, Bradley G. "Geologic Investigations for Compliance with the CARB Asbestos ATCM." Environmental and Engineering Geoscience 26, no. 1 (2020): 99–106. http://dx.doi.org/10.2113/eeg-2290.

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ABSTRACT The California Air Resources Board Airborne Toxic Control Measure for Construction, Grading, Quarrying, and Surface Mining Operations (ATCM) provides requirements for the evaluation for naturally occurring asbestos (NOA) on a construction site. There are two compliance triggers: (1) a determination that the site is located within a geographic ultramafic rock unit, defined as a geographic area designated as an ultramafic rock on referenced maps, and (2) the presence of NOA, serpentinite, or ultramafic rock. The California Geological Survey requires that NOA evaluations be conducted by
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Nayak, Debajyoti, Pranab Das, and Sagar Misra. "Petrology and Geochemistry of Mesoarchean Sukinda Ultramafics, Southern Singhbhum Odisha Craton, India: Implications for Mantle Resources and the Geodynamic Setting." Minerals 13, no. 11 (2023): 1440. http://dx.doi.org/10.3390/min13111440.

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The Sukinda ultramafic complex in India comprises precisely two areas: Kaliapani (KLPN) and Katpal (KTPL). These areas consist of a sequence of lithotypes, including orthopyroxenite, dunite, serpentinite, and chromitite, displaying a rhythmic layering of rocks. These rocks exhibit a cumulate texture and stand out due to their elevated Mg# (78.43–93.20), Cr (905.40–58,799 ppm), Ni (193.81–2790 ppm), Al2O3/TiO2 (27.01–74.06), and Zr/Hf (39.81–55.24) ratios, while possessing lower TiO2 contents (0.01–0.12 wt%). These ultramafics, characterized by low Ti/V (0.83–19.23) and Ti/Sc (7.14–83.72) ratio
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Dissertations / Theses on the topic "Ultramafic rock"

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SCARSI, MARCO. "Faulting, fluid-rock interaction and hydrothermal mineralisation in ultramafic rocks (Voltri Massif, Ligurian Alps)." Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/929962.

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This study deals with reverse faults within intensely carbonated metalherzolites, with related gold mineralisations, from the Voltri Massif, and in particular within the Lavagnina Lakes area, in the Gorzente Valley. This area is located in northwest Italy among the municipalities of Casaleggio Boiro, Lerma, Mornese, and Bosio (Alessandria, Italy; GPS coordinates WGS84, 44.600685° N, 8.784286° E). The Voltri Massif is a metaophiolitic complex, which occurs within the Eastern edges of the Ligurian Alps. It is made up of of metaophiolitic rocks associated with metasediments and slices of
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Scoon, Roger N. "Discordant bodies of postcumulis, ultramafic rock in the upper critical zone of the Bushveld complex : iron-rich ultramafic pegmatite bodies at Amandelbult and the Driekop platiniferous ultramafic pipe." Thesis, Rhodes University, 1986. http://hdl.handle.net/10962/d1004912.

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From the abstract: In the layered sequence of the Bushveld Complex a number of distinct, but possibly genetically related groups of transgressive, postcumulus, ultramafic and mafic rock are recognised. The main part of this thesis investigates a suite of postcumulus rocks for which the name iron-rich ultramafic pegmatite is proposed. The majority of iron-rich ultramafic pegmatite bodies examined are from the upper critical zone of the layered sequence at Rustenburg Platinum Mines Amandelbult Section, in the northern sector of the western Bushveld Complex. Field relationships imply that the iro
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Berly, Thomas. "Ultramafic and mafic rock types from Choiseul, Santa Isabel and santa Jorge (Northeastern Solomon Islands) : origins and significance." Grenoble 1, 2005. http://www.theses.fr/2005GRE10223.

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Les Iles Salomon forment une double chaîne d'îles située au nord-est de l'Australie entre la Papousie Nouvelle Guinée et les Iles Vanuatu (Océan Pacifique), résultant de la récente collision (<10 Ma) du plus grand plateau océanique au monde - Ontong Java (OJP) avec l'arc volcanique des Iles Salomon, issu de la subduction de la plaque Pacifique sous la plaque indo-australienne (depuis 43 Ma). Résultant de cette collision, des écailles de roches ultramafiques (péridotites et pyroxénites) et mafiques (basaltes et gabbros) ont été obductées et affleurent au nord-est des Iles Salomon. L'objectif
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Clark, David 1979. "Petrogenetic and economic significance of the whole-rock chemistry of ultramafic cumulates in the Cape Smith foldbelt, northern Quebec." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112390.

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The ultramafic cumulate rocks of the Raglan horizon in the Proterozoic Cape Smith fold belt of northern Quebec have a common parental liquid in equilibrium with olivine of Fo89 composition. Cumulate olivines have experienced a trapped liquid shift to lower forsterite composition proportionally to the fraction of trapped liquid in the cumulate. Anomalously low nickel contents in analyses of both olivine and whole-rock chemistries are observed only in cumulates with the most modal olivine and which are proximal to known Ni-Cu-(PGE) deposits. The calculated compositions of the trapped liquid frac
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Sterritt, Victoria Athena. "Understanding physical property : mineralogy relationships in the context of geologic processes in the ultramafic rock-hosted mineral deposit environment : aiding interpretation of geophysical data." Thesis, University of British Columbia, 2006. http://hdl.handle.net/2429/32686.

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Inversion of potential field geophysical data to generate physical property models is becoming increasingly common in the exploration industry. This study aimed to develop relationships between physical properties and mineralogy in ultramafic rock-hosted mineral deposits, based on an analysis of the crater facies-dominated Anuri kimberlite (Canada) and the intrusive magmatic sulfide deposit at Kabanga (Tanzania). Physical property distributions for rock types and minerals that contribute to density and magnetic susceptibility were characterized in both deposits. Magnetic susceptibility
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Souza, Thamy Lara. "Controles mineralógicos e geoquímicos do níquel não sulfetado em rochas ultramáficas no Escudo Sul-Riograndense." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/94678.

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Este trabalho tem como objetivo investigar os processos controladores da mobilidade e concentração de níquel (Ni) em rochas ultramáficas serpentinizadas no Escudo Sul-Riograndense (ESrg), Rio Grande do Sul (RS), Brasil. A composição primária das rochas ultramáficas hospedeiras de Ni constitui um parâmetro relevante, mas os processos secundários são os controladores mais importantes dessas mineralizações, principalmente a serpentinização, pressupondo-se que o Ni possa migrar da olivina ou metamórfica para os minerais do grupo das serpentinas. Para a caracterização mineralógica e textural das ro
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GUERINI, SARA SIBIL GIUSEPPINA. "STRUCTURE, GEOCHEMISTRY AND PETROLOGY OF SERPENTINITES AND LISTVENITES IN THE WESTERN ALPS: CONSTRAINTS ON CARBONATION AND ELEMENT MOBILIZATION FROM SUBDUCTION TO OPHIOLITE EMPLACEMENT." Doctoral thesis, Università degli Studi di Milano, 2022. http://hdl.handle.net/2434/927547.

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This Ph.D. Thesis is intended as a multidisciplinary research work on the Zermatt-Saas (Western Alps) serpentinites and associated carbonated rocks. The main goal of this thesis is to decipher the carbonation processes involving serpentinites and the concomitant element mobilization, while also attempting at defining the serpentinites’ subduction-to emplacement- evolution. To address these aims, field work activities, spanning from acquisition of macro-structural data to sampling of representative lithologies, and detailed petrography were carried out on a sequence of serpentinites, carbonat
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de, Oliveira Elson Paiva. "Petrogenesis of mafic-ultramafic rocks from the Precambrian Curaca terrane, Brazil." Thesis, University of Leicester, 1990. http://hdl.handle.net/2381/35079.

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The Caraiba copper-rich hypersthenite-norite complex in the Early Proterozoic Curaca terrane of northern Bahia, Brazil, is not a tholeiitic layered sill as has been previously suggested. It is re-interpreted as a series of multiple dyke-like intrusions, possibly derived through partial melting of an incompatible element enriched harzburgitic to orthopyroxenitic lithospheric mantle source region. It contains peridotitic and gabbroic xenoliths. Copper-rich gabbroic xenoliths may represent volcanic rocks taken to upper mantle depths by a process of subduction. The chemistry of some of the regiona
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Kieser, Nigel Bernard John. "Platinum-group element dispersion associated with mafic and ultramafic rocks in Alaska." Thesis, Imperial College London, 1996. http://hdl.handle.net/10044/1/8235.

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Power, Matthew R. "Models for the genesis of industrial minerals in mafic and ultramafic rocks." Thesis, University of Exeter, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245925.

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Books on the topic "Ultramafic rock"

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Pell, Jennifer. Alkaline ultrabasic rocks in British Columbia: Carbonatites, nepheline syenites, kimberlites, ultramafic lamprophyres, and related rocks. Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources, Mineral Resources Division, Geological Survey Branch, 1987.

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Plas, Alessio Andrea. Petrologic and stable isotope constraints on fluid-rock interaction, serpentinization and alteration of oceanic ultramafic rocks. Swiss Federal Institute of Technology Zürich, 1997.

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Mies, Jonathan W. Ultramafic rocks of the Alabama Piedmont. Geological Survey of Alabama, Economic Geology Division, 1994.

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1959-, Mittwede Steven K., Stoddard Edward F. 1949-, and Geological Society of America. Southeastern Section. Meeting, eds. Ultramafic rocks of the Appalachian Piedmont. Geological Society of America, 1989.

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Theyer, P. Ultramafic rocks of the Island Lake area. Manitoba Energy and Mines, Geological Services, 1985.

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Hancock, Kirk D. Olivine potential of the Tulameen ultramafic complex. Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources, Mineral Resources Division, Geological Survey Branch, 1991.

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Vincent, Harold R. Geology of selected mafic and ultramafic rocks of Georgia: A review. Georgia Department of Natural Resources, Environmental Protection Division, Georgia Geologic Survey, 1990.

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Moreva-Perekalina, T. V. Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany). Rijksmuseum van Geologie en Mineralogie, 1985.

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Obeso, Juan Carlos de. Tracing alteration of ultramafic rocks in the Samail ophiolite. [publisher not identified], 2019.

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Himmelberg, Glen R. Petrogenesis of the ultramafic complex at the Blashke Islands, southeastern Alaska. Dept. of the Interior, U.S. Geological Survey, 1986.

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Book chapters on the topic "Ultramafic rock"

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Yushun, Min. "Hydrogen and oxygen isotopic studies of selected ultramafic-type serpentine-asbestos deposits in western China." In Water-Rock Interaction. Routledge, 2021. http://dx.doi.org/10.1201/9780203734049-52.

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Plyusnina, L. P., and G. G. Likhoidov. "Experimental study of granite-ultramafic interaction and its effect on gold solubility in aqueous-chloride solutions." In Water-Rock Interaction. Routledge, 2021. http://dx.doi.org/10.1201/9780203734049-205.

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Chu, Xuelei, Weiguo Huo, Qicheng Fan, and Ruoxin Liu. "Stable isotopic investigation on CO2 fluid inclusions in ultramafic xenoliths of the Cenozoic basalts in eastern China." In Water-Rock Interaction. Routledge, 2021. http://dx.doi.org/10.1201/9780203734049-44.

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Pryadunenko, Anna, and Kåre Kullerud. "Economical Potential of an Ultramafic Rock at the Kvaløya Island, North Norway." In Springer Geochemistry/Mineralogy. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13948-7_3.

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Vladykin, N. V., I. A. Sotnikova, and N. V. Alymova. "Zhidoy Alkali-Ultramafic Rock and Carbonatite Massif: Geochemical Features, Its Sources Aednd Ore-Bearing." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69670-2_3.

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Pinti, Daniele L. "Ultramafic Rocks." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_5099.

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Pinti, Daniele L. "Ultramafic Rocks." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_5099.

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Pinti, Daniele L. "Ultramafic Rocks." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-642-27833-4_5099-3.

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Pinti, Daniele L. "Ultramafic Rocks." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_5099-2.

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Taylor, Hugh P., Robert T. Gregory, and Bruno Turi. "18O/16O Evidence for Fluid-Rock Interaction in the Upper Mantle: Data from Ultramafic Nodules and K-Rich Volcanic Rocks in Italy." In Chemical Transport in Metasomatic Processes. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4013-0_1.

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Conference papers on the topic "Ultramafic rock"

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Videla, Héctor A., Patricia S. Guiamet, Sandra Gómez de Saravia, Liz Karen Herrera, Carlos Arroyave, and Daniel G. Poire. "Assessment of Microbiological and Atmospheric Effects on Rock Decay." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03571.

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Abstract The case history chosen for this study is the church of Veracruz, the most representative church of the cultural heritage of the city of Medellin, Colombia. The church construction was started in 1682 and its front was built with peridotite, an ultramafic rock containing more than 90% of iron and magnesium minerals, such as olivine and pyroxene. The possible causes of biodeterioration are studied by using microbiological techniques of isolation and culture, complemented with optical and electron scanning microscopy (SEM) observations. The impact of atmospheric factors on the structura
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Zhang, Tiansheng, and Haiying Huang. "Physical Properties and Fracture Network Characteristics of Mafic and Ultramafic Rocks." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0951.

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ABSTRACT Mineral carbon storage in mafic and ultramafic rocks is a novel concept for CO2 sequestration. In contrast to carbon sequestration in sedimentary formations, where structural and residual trappings are the primary mechanisms of storage, solubility and mineral trappings are expected to be the dominant storage mechanisms in mafic and ultramafic rocks. Mafic and ultramafic rocks are rich in calcium, magnesium and iron. Mineral carbonation occurs when these rocks are exposed to an environment with CO2 and water. Feasibility of mineral carbon storage has been demonstrated in field trials i
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Sekar, Lokesh Kumar, and Esuru Rita Okoroafor. "Thermohydrochemical Modeling of Hydrogen Generation from Stimulated Ultramafic Rocks." In SPE Reservoir Simulation Conference. SPE, 2025. https://doi.org/10.2118/223864-ms.

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Abstract This study is a preliminary model of hydrogen generation from stimulated ultramafic rocks. A coupled thermohydrochemical model simulates the multifaceted processes of heat transfer, fluid flow, and chemical reactions, accounting for hydrogen generation, phase changes, thermal energy release, and new material formation during induced serpentinization. Some of the model inputs were from experimental data, and others were taken from works in literature. The hydrogen generation from the stimulated ultramafic rock was compared to the base model of unstimulated ultramafic rock. The model wa
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Oskierski, Hans Christoph, Tobias Kluge, Andreas Beinlich, and Paul M. Ashley. "Ultramafic Rock Carbonation between 40° and 255° C." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.2001.

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Cardace, Dawn. "TRACKING SHIFTS IN BIOGEOCHEMICAL INTERACTIONS IN ULTRAMAFIC ROCK SYSTEMS." In Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-291141.

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Bažant, Zdenek P., Anh Tay Nguyen, Houlin Xu, Pouyan Asem, and Joseph F. Labuz. "Hydraulic Crack Propagation and Rock Permeability Under Osmotic Pressure Gradients with Implications for Deep CO2 Sequestration and Fraccing." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0264.

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ABSTRACT: Long-term deep sequestration of CO2-rich brine in deep formations of ultramafic rock (e.g. Oman serpentinized harzburgite) will be feasible only if a network of hydraulic cracks could be produced and made to grow for years and decades. Fraccing of gas- or oil-bearing shales has a similar objective. The following points are planned to be made in the presentation in Golden. 1) A branching of fracture can be analyzed only if the fracture is modeled by a band with triaxial tensorial damage, for which the new smooth Lagrangian crack band model is effective. 2) To achieve a progressive gro
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Asem, Pouyan, Zdenek P. Bažant, Juerg Matter, and Joseph F. Labuz. "Tensile Strength of Serpentinized Harzburgite." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-1101.

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ABSTRACT: Ultramafic rocks play an active role in geologic processes including the carbon cycle and serpentinization reactions. Many of these processes accompany mineral transformations that result in volume increase of the product phase (e.g. serpentinization, carbonation). Accommodation of changes in volume is often associated with formation of fracture surfaces as new minerals form. Thus, fracture properties such as tensile strength or fracture toughness are of interest in analyses of volumetric deformation during mineral replacement. Cores extracted from Oman ophiolite were used to measure
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Iyare, U. C., C. W. Neil, L. Boampong, et al. "Crystallization Pressure and Reaction-Induced Cracking in Olivine Carbonation: Insights from Etch Pit Analysis." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0577.

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ABSTRACT: Carbon mineralization in mafic and ultramafic rocks has emerged as a highly promising method for permanent CO2 sequestration. It is hypothesized that stress concentration, caused by the volume expansion and mineral transformation during carbonation, can cause damage and create new fractures. To evaluate the stress generated during this process, we conducted one-week carbonation experiments on millimeter-sized natural olivine grains in a high-pressure batch reactor (139 atm) at 185°C, using aqueous CO2 and a solution of NaHCO3 and NaCl. Our experimental results indicate distinct spati
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Ismail, H. H., H. Zhao, S. Rajput, E. A. Jones, S. W. Tan, and N. S. Sobri. "The Sabah's Ophiolite Mineralogical Studies for Evaluation of Natural Hydrogen Potential." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222799-ms.

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Abstract The serpentinization of the mafic and ultramafic rocks is one of the most significant mechanisms for producing natural hydrogen in the subsurface. The northern part of Borneo is notable for its complex regional geology, particularly regarding Fe-rich rocks in the ophiolite zone of Sabah. This article discusses the mineralogy of ophiolites in Sabah, which could lead to the natural hydrogen feasibility via serpentinization processes. Fieldworks were conducted in selected outcrops in order to investigate the presence of ophiolites, standard petrography and x-ray diffraction (XRD) analyse
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Yuan, N., R. Czarnota, B. Jha, and G. Dávila. "Impact of Effective Stress on Variations of Acoustic Velocities at Ultrasonic Frequencies in Ultramafic Rocks." In SPE Western Regional Meeting. SPE, 2025. https://doi.org/10.2118/224145-ms.

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Abstract The global energy transition effort is focused on decarbonization and greener sources of energy, of which hydrogen is an example. Geologic H2 production via the serpentinization reaction has emerged as an active research area with many open questions. Serpentinization refers to the oxidation of ferrous ions into ferric ions in iron-rich rocks, e.g., olivine, which releases hydrogen. Exothermicity and volumetric expansion associated with the reaction can have positive or negative feedback on the rock’s H2 generation potential. Here, we unravel such mechanisms at the core-scale via acou
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Reports on the topic "Ultramafic rock"

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Goff, F., G. Guthrie, D. Counce, E. Kluk, D. Bergfeld, and M. Snow. Preliminary investigations on the carbon dioxide sequestering potential of the ultramafic rock. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/563233.

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Zagorevski, A., J. Ryan, C. Roots, and N. Hayward. Ultramafic rock occurrences in the Dawson Range and their implications for the crustal structure of Yukon-Tanana terrane, Yukon (parts of NTS 115I, J and K). Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2012. http://dx.doi.org/10.4095/290992.

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Fox, D., and J. T. van Berkel. Mafic-ultramafic occurrences in metasedimentary rocks of southwestern Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/122420.

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Peterson, T. D., M. Sanborn-Barrie, and J. Chakungal. Petrological investigation of ultramafic-mafic plutonic rocks, Southampton Island, Nunavut. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/289244.

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Covello, L., S. M. Roscoe, J. A. Donaldson, D. Roach, and W K Fyson. Archean quartz arenite and ultramafic rocks at Beniah Lake, Slave Structural Province, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/122635.

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Laurent, R., and R. Hebert. Petrological features of gabbroic and ultramafic rocks from deep drill CY-4, Cyprus. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127328.

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Ryan, J. J., A. Zagorevski, N. R. Cleven, A J Parsons, and N. L. Joyce. Architecture of pericratonic Yukon-Tanana terrane in the northern Cordillera. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/326062.

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West-central Yukon and eastern Alaska are characterized by widespread metamorphic rocks that form part of the allochthonous, composite Yukon-Tanana terrane and parautochthonous North American margin. Structural windows through the Yukon-Tanana terrane expose parautochthonous North American margin in that broad region, particularly as mid-Cretaceous extensional core complexes. Both the Yukon-Tanana terrane and parautochthonous North American margin share the same Late Devonian history, making their discrimination difficult; however, distinct post-Late Devonian magmatic and metamorphic histories
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Ayers, L. D., and J. Young. Characterization of Mafic - Ultramafic Intrusive Rocks in the Flin Flon - Snow Lake area, Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127282.

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Barthelmes, Michael. Kennesaw Mountain National Battlefield Park: Geologic resources inventory report. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2288173.

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Geologic Resources Inventory reports provide information and resources to help park managers make decisions for visitor safety, planning and protection of infrastructure, and preservation of natural and cultural resources. Information in GRI reports may also be useful for interpretation. This report synthesizes discussions from a scoping meeting held in 2012 and a follow-up conference call in 2020. Chapters of this report discuss the geologic setting and significance, geologic features and processes, and geologic resource management issues within Kennesaw Mountain National Battlefield Park. In
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Hulbert, L. J. Metallogeny of Mafic and Ultramafic Rocks of the Trans - Hudson Orogen of northern Saskatchewan and Manitoba. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127281.

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