Academic literature on the topic 'Petrographic'

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Journal articles on the topic "Petrographic"

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Chen, Zhongliang, Feng Yuan, Xiaohui Li, et al. "Knowledge Extraction and Quality Inspection of Chinese Petrographic Description Texts with Complex Entities and Relations Using Machine Reading and Knowledge Graph: A Preliminary Research Study." Minerals 12, no. 9 (2022): 1080. http://dx.doi.org/10.3390/min12091080.

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(1) Background: Geological surveying is undergoing a digital transformation process towards the adoption of intelligent methods in China. Cognitive intelligence methods, such as those based on knowledge graphs and machine reading, have made progress in many domains and also provide a technical basis for quality detection in unstructured lithographic description texts. (2) Methods: First, the named entities and the relations of the domain-specific knowledge graph of petrography were defined based on the petrographic theory. Second, research was carried out based on a manually annotated corpus o
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Geschwind, Carl-Henry. "The Beginnings of Microscopic Petrography in the United States, 1870-1885." Earth Sciences History 13, no. 1 (1994): 35–46. http://dx.doi.org/10.17704/eshi.13.1.x3888321461141qu.

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In the 1860's and 70's, microscopic petrography flourished in Germany, where descriptions and classifications of rocks were highly valued for their own sake. American geologists, however, were more interested in stratigraphical correlations and had relatively little use for petrographical details. Thus, such Americans as George Hawes and Alexis Julien, who attempted to introduce the microscope for purely petrographical work in the early 1870's, had great difficulties in finding an audience. During the late 1870's, however, a number of American geologists-including federal geologists working am
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VOYTEKHOVSKY, Yury, and Alena ZAKHAROVA. "Petrographic structures and Hardy – Weinberg equilibrium." Journal of Mining Institute 242 (June 10, 2020): 133. http://dx.doi.org/10.31897/pmi.2020.2.133.

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The article is devoted to the most narrative side of modern petrography – the definition, classification and nomenclature of petrographic structures. We suggest a mathematical formalism using the theory of quadratic forms (with a promising extension to algebraic forms of the third and fourth orders) and statistics of binary (ternary and quaternary, respectively) intergranular contacts in a polymineralic rock. It allows constructing a complete classification of petrographic structures with boundaries corresponding to Hardy – Weinberg equilibria. The algebraic expression of the petrographic stru
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Ownby, Mary F., James M. Heidke, and Henry D. Wallace. "New Insights into Hohokam Buff Ware Production and Distribution." American Antiquity 80, no. 2 (2015): 387–96. http://dx.doi.org/10.7183/0002-7316.80.2.387.

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Hohokam buff ware pottery produced in Arizona has been much studied over the last few decades. However, petrographic analysis has been less frequently applied, due in part to mistaken assumptions regarding the raw materials utilized. The current study reexamined the use of petrography for locating the provenance of buff ware pottery from two sites, La Villa in the Phoenix area and Honey Bee Village in the Tucson area. The petrographic results suggest that production occurred in one primary area along the middle Gila River with minor production in a few other locations. The potters in this area
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Nikitenko, I. S., V. N. Stepanchuk, and V. I. Ganotskiy. "On the earliest evidence of the middle Dnipro area non-flint rocks use." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 5 (October 30, 2022): 5–11. http://dx.doi.org/10.33271/nvngu/2022-5/005.

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Purpose. To determine the rock composition and origin of raw materials of non-flint stone products found during the study on the Mira Upper Palaeolithic archaeological site in the Middle Dnipro area. Methodology. The research on the artefacts was carried out using the mineralogical and petrographic methods. The rocks were studied in transparent thin sections using a polarized microscope. To verify the accuracy of the petrographic analysis of some specimens, the XRD and XRF methods were applied. Establishing the provenance of the rocks was performed using comparative mineralogical and petrograp
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Voytekhovsky, Yuri Leonidovich, and Alena Alexandrovna Zakharova. "Petrographic structures: Khibiny ijolites and urtites." Vestnik MGTU 24, no. 2 (2021): 160–67. http://dx.doi.org/10.21443/1560-9278-2021-24-2-160-167.

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In addition to the standard description of the structures and textures of crystalline rocks the mathematical approaches have been proposed based on a rigorous determination of the petrographic structure through the probabilities of binary intergrain contacts. In general, the petrographic structure is defined as an invariant aspect of rock organization, algebraically expressed by the canonical diagonal form of the symmetric Pij matrix and geometrically visualized by structural indicatrices - surfaces of the 2nd order. The agreed nomenclature of possible petrographic structures for an n-mineral
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Abel, M. "PetroGrapher: managing petrographic data and knowledge using an intelligent database application." Expert Systems with Applications 26, no. 1 (2004): 9–18. http://dx.doi.org/10.1016/s0957-4174(03)00104-0.

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Wang, Bao Hua, Shi Jie Li, and Bing Kui Miao. "The Mineral Chemistry and Classification of New Ordinary Chondrites Collected in Antarctica." Advanced Materials Research 621 (December 2012): 125–29. http://dx.doi.org/10.4028/www.scientific.net/amr.621.125.

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Petrography and mineral chemistry of ninety-eight ordinary chondrites from Grove Mountains, Antarctica, have been studied, in order to assign their chemical-petrographic types. The chemical-petrographic types of these meteorites are presented below: 36 H-groups (21 H4, 9 H5, 6 H6) and 62 L-groups (25 L5, 37 L6). The compositions of olivines and low-Ca pyroxenes in the all these ordinary chondrites have similar composition, respectively, reflecting some degree thermodynamics equilibration in them. The weathering degrees of all the ordinary chondrites, consisting of predominant weathering degree
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Измайлов, Д. Я., та Ю. Р. Селюминова. "ОЦЕНКА ЭФФЕКТИВНОСТИ ПРИМЕНЕНИЯ СЕГМЕНТАЦИИ ИЗОБРАЖЕНИЙ С ИСПОЛЬЗОВАНИЕМ НЕЙРОННЫХ СЕТЕЙ ПРИ ОПТИКО-ПЕТРОГРАФИЧЕСКОМ АНАЛИЗЕ ГОРНЫХ ПОРОД И МИНЕРАЛЬНОГО СЫРЬЯ". Prospect & protection of mineral resources, № 3 (24 червня 2025): 50. https://doi.org/10.53085/0034-026x_2025_3_50.

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В статье показаны возможности современного комплекса минералого-аналитических методов при решении задач петрографии с использованием нейронных сетей на примере дешифровки изображений петрографических препаратов методом сегментации, а также целесообразность данного метода, использующего алгоритмы машинного обучения для анализа прозрачных петрографических шлифов в проходящем поляризованном свете. Минералогические исследования проводились в соответствии с методической документацией, утвержденной Научным советом по минералогическим методам исследования [3]. Элементом новизны является методический
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Voytekhovsky, Yu L., and A. A. Zakharova. "Modeling petrographic structures." Vestnik of Geosciences 10 (2020): 38–42. http://dx.doi.org/10.19110/geov.2020.10.5.

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The article describes a technique for 2D modeling of structures and textures of bimineral rocks in terms of the probabilities of binary intergranular contacts. It is shown that typical petrographic structures (disseminated, chained, poikilitic, porphyric) and textures (massive, banded, schlieren) regularly fill the barycentric diagram (pii, pjj, pij) of contact probabilities. These structures and textures are correlated with the Hardy-Weinberg equilibrium. The problems of modeling polymineral petrographic structures and textures are discussed. A new type of structural diagrams is suggested. Th
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Dissertations / Theses on the topic "Petrographic"

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Thomson, Robert Clark. "Petrographic image analysis and understanding." Thesis, Aston University, 1991. http://publications.aston.ac.uk/14391/.

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This study considers the application of image analysis in petrography and investigates the possibilities for advancing existing techniques by introducing feature extraction and analysis capabilities of a higher level than those currently employed. The aim is to construct relevant, useful descriptions of crystal form and inter-crystal relations in polycrystalline igneous rock sections. Such descriptions cannot be derived until the `ownership' of boundaries between adjacent crystals has been established: this is the fundamental problem of crystal boundary assignment. An analysis of this problem
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Zhao, Xianghong. "Automated image analysis for petrographic image assessments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ62444.pdf.

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Carlsson, Diana. "Petrographic study of high-grade gneisses, Halland area." Thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-116071.

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This is a petrographic study of high-grade gneisses in the Halland area, Sweden. During bedrock mapping by the Swedish Geological Survey, three principal petrographically distinct gneiss domains have been recognized: the Skene, Varberg, and Halmstad domain. The purpose is to compare the petrographic textures and minerals that occur within this area, to determine possible metamorphic differences between the domains. Within this study, the petrographic descriptions will also be compared with technical data made on the gneisses, to evaluate if the gneisses could be used as aggregates, in for exam
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Drewery, S. E. "Provenance of carboniferous sandstones : Geochronologic and petrographic studies." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380301.

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Devine, Steven M. "Petrographic Controls on Weathering of the Haney Limestone." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1594.

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Although karst processes in south central Kentucky have been studied extensively, the Haney Limestone Member of the Golconda Formation has not been studied in detail in contrast to limestones stratigraphically below it that are thicker. In addition, the relationship between petrographic features of the Haney Limestone and the formation of caves and karst features has not been studied extensively compared to lithographic, petrographic, or structural variables Petrographic data were collected using core and surface exposures across the study area of south central Kentucky from northern Logan and
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Schubel, Kathryn A. "Petrographic Criteria for the Recognition of 'Magadi-Type' Cherts." Oberlin College Honors Theses / OhioLINK, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1415351823.

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Coolidge, Jennifer Whitney. "Southern Turkmenistan in the Neolithic : a petrographic case study." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394977.

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Coolidge, J. W. "Southern Turkmenistan in the Neolithic a petrographic case study /." Oxford : Archaeopress, 2005. http://books.google.com/books?id=BjVmAAAAMAAJ.

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Yang, Huade. "Relationships between petrophysical properties and petrographic properties of reservoir rocks /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Abart, Rainer Richard. "Phase relations in metasomatic systems : a petrographic and isotope geochemical approach /." Zürich, 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10482.

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Books on the topic "Petrographic"

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Ghose, Naresh Chandra, Nilanjan Chatterjee, and Fareeduddin. A Petrographic Atlas of Ophiolite. Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1569-1.

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Thomson, Robert Clark. Petrographic image analysis and understanding. Aston University. Department of Geological Sciences, 1991.

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Banani, Bardhan, and Geological Survey of India, eds. Petrographic atlas of Indian coal. Geological Survey of India, 2005.

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Hucka, Brigitte P. Petrographic and physical characteristics of Utah coals. Utah Geological Survey, 1997.

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Parkash, S. Petrographic studies of coals from Alberta plains. Coal Research Dept., Alberta Research Council, 1985.

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Parkash, S. Petrographic studies of coals from Alberta plains. Alberta Research Council, Coal Research Dept., 1985.

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Quinn, Patrick S. Interpreting silent artefacts: Petrographic approaches to archaeological ceramics. Archaeopress, 2009.

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W, Stanton R., ed. Coal petrographic laboratory procedures and safety manual II. U.S. Dept. of the Interior, Geological Survey, 1994.

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Dyman, T. S. Quantitative petrographic analysis of mid-Cretaceous sandstones, southwestern Montana. U.S. G.P.O., 1988.

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Gale, Stephen J. Quaternary sediments: Petrographic methods for thestudy of unlithified rocks. Belhaven Press, 1991.

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Book chapters on the topic "Petrographic"

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de Frascá, Maria Heloisa Barros Oliveira. "Petrographic Analysis." In Selective Neck Dissection for Oral Cancer. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_218-1.

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de Oliveira Frascá, Maria Heloisa Barros. "Petrographic Analysis." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_218.

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Cady, John G., L. P. Wilding, and L. R. Drees. "Petrographic Microscope Techniques." In SSSA Book Series. Soil Science Society of America, American Society of Agronomy, 2018. http://dx.doi.org/10.2136/sssabookser5.1.2ed.c8.

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Diessel, Claus F. K. "Coal Petrographic Entities." In Coal-Bearing Depositional Systems. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-75668-9_4.

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Cady, John G. "Petrographic Microscope Techniques." In Agronomy Monographs. American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.1.c46.

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Ghose, Naresh Chandra, Nilanjan Chatterjee, and Fareeduddin. "Petrography." In A Petrographic Atlas of Ophiolite. Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1569-1_5.

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Ortenzi, A., and M. Fiorani. "Petrographic Applications of Image Analysis." In Generation, Accumulation and Production of Europe’s Hydrocarbons III. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77859-9_30.

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Ghose, Naresh Chandra, Nilanjan Chatterjee, and Fareeduddin. "Introduction." In A Petrographic Atlas of Ophiolite. Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1569-1_1.

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Ghose, Naresh Chandra, Nilanjan Chatterjee, and Fareeduddin. "Serpentinite." In A Petrographic Atlas of Ophiolite. Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1569-1_10.

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Ghose, Naresh Chandra, Nilanjan Chatterjee, and Fareeduddin. "Rodingite." In A Petrographic Atlas of Ophiolite. Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1569-1_11.

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Conference papers on the topic "Petrographic"

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Zamanzadeh, Mehrooz, George T. Bayer, Kevin Groll, Shawn McArdle, and John Parks. "Assessment, Selection, and Specification of Cathodic Protection Measures in Reinforced Concrete Infrastructures and Historic Buildings." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07307.

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Abstract A proven methodology for providing assessment, selection and specification of cathodic protection measures in reinforced concrete infrastructures and historic buildings is described. An on-site condition evaluation survey is first required. Evaluation and survey will consist of implementation of several analysis techniques including visual examination to detect defects, petrography to determine concrete condition, and various electrochemical measurements such as half cell potential mapping, linear polarization, continuity, stray current identification and resistivity. Laboratory analy
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Asselanis, Jon. "An Overview of Petrographic Examination of Concrete as Related to Polymer Floor Coating Failures." In SSPC 2013 Greencoat. SSPC, 2013. https://doi.org/10.5006/s2013-00004.

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Abstract Often when a polymer coating failure occurs, the concrete quality and integrity are questioned. Core samples removed from the concrete slab are examined using petrographic techniques to help determine the cause of the coating failure. The basics of the petrographic examination, the equipment used and what information it can provide are presented.
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zur Loye, Thomas E., Jeremiah L. Mickey, and John T. Shukle. "ROCKR! A PETROGRAPHIC PLOTTING TOOL." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-320722.

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БОНДАРЬ-ЛУНЕЦКАС Н., А., А. КРАВЧЕНКО А, Е. ИВАНОВ Е, and Е. ЛОСКУТОВ Е. "PETROGRAPHY OF THE ROCKS COMPOSING THE GREENSTONE COMPLEX OF THE UTANAKH ORE OCCURRENCE (UPPER TIMPTON GOLD MINING DISTRICT)." In ГЕОЛОГИЯ И МИНЕРАЛЬНО-СЫРЬЕВЫЕ РЕСУРСЫ СЕВЕРО-ВОСТОКА РОССИИ 2024. Crossref, 2024. http://dx.doi.org/10.53954/9785604990100_54.

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The paper presents and discusses data on the petrography and petrochemistry of the diaphthorites with disseminated sulfides replasing the basic rocks in the area. As a result of the research, it was found that diaphthorites belong to the greenschist facies. In the progress of petrographic studies, the rocks were divided into two subfacies. The subfacies have some differences in the mineral composition of the rocks, which are well observed by microscopic study. First subfaction is represented by the mineral association of oligoclase, epidote, actinolite, biotite and muscovite. Second subfation
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Pattnaik, Sonali, Songhua Chen, Wei Shao, and Adly Helba. "AUTOMATING MICROFACIES ANALYSIS OF PETROGRAPHIC IMAGES." In 2020 SPWLA 61st Annual Online Symposium. Society of Petrophysicists and Well Log Analysts, 2020. http://dx.doi.org/10.30632/spwla-5074.

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Wynn, Joshua C., and Tim R. Walsh. "GEOCHEMICAL AND PETROGRAPHIC CHARACTERIZATION OF CHERT WORKABILITY." In 52nd Annual GSA South-Central Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018sc-309823.

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Sides, Kristen, and Jonathan B. Sumrall. "PALEOSOLS FROM ELEUTHERA, THE BAHAMAS: PETROGRAPHIC ANALYSIS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282497.

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Hussain, Maaruf, Naeem-Ur-Rehman Minhas, Bilal Saad, and Asok Nair. "Rock Texture Characterization from Automated Petrographic Analysis." In SPE Middle East Oil & Gas Show and Conference. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/184007-ms.

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Flores, Marck, and David H. Shimabukuro. "PETROGRAPHIC OBSERVATIONS OF THE WOLF BAR AMPHIBOLITE." In 121st Annual Meeting of the GSA Cordilleran Section - 2025. Geological Society of America, 2025. https://doi.org/10.1130/abs/2025cd-410202.

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Trapeznikov, D. E. "PETROTYPES OF SANDSTONES OF THE SHESHMINSKY HORIZON IN THE SOUTHWESTERN PART OF THE SOLIKAMSK DEPRESSION." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. Пермский государственный национальный исследовательский университет, 2021. http://dx.doi.org/10.17072/chirvinsky.2021.253.

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The results of petrographic studies of sandstones of the Sheshminsky horizon are presented. The main components of the clastic phase have been determined. The studied section contains only lithite arenites, among which five petrographic varieties have been identified. The source of clastic material was probably five different complexes: volcanic and plutonic rocks of intermediate and basic composition, sedimentary, metamorphic and quartzite sequences
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Reports on the topic "Petrographic"

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Munoz, V. A. Petrographic characterization of thickener feed samples. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/304961.

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Bloch, J., and D. R. Issler. Petrographic and geochemical analyses of Beaufort-Mackenzie Basin shales. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207487.

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Hein, F. J. Evaluation of Petrographic and Mineralogic Analysis For Marine Placer Sediments. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/130792.

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Niem, A. R., H. E. Enlows, and Amoco Oil Co. Petrographic study of 47 sandstone samples from North Slope Alaska, 1972. Alaska Division of Geological & Geophysical Surveys, 2019. http://dx.doi.org/10.14509/30312.

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Sharma, B. Petrographic correlations and mathematical analysis of log signatures for clay identification. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10151851.

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Sharma, B. Petrographic correlations and mathematical analysis of log signatures for clay identification. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5220877.

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Potter, J., L. D. Stasiuk, and A. R. Cameron. A petrographic atlas of Canadian coal macerals and dispersed organic matter. Natural Resources Canada/CMSS/Information Management, 1998. http://dx.doi.org/10.4095/210228.

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Armstrong, Katherine. Chemical and Petrographic Survey of Large, Igneous-Textured Inclusions in Ordinary Chondrites. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2069.

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Chernis, P. J. Petrographic analyses of URL-2 and URL-6 special thermal conductivity samples. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/315247.

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Clemons, Russell E. Petrographic analysis of upper Paleozoic rocks in southern Luna County, New Mexico. New Mexico Bureau of Geology and Mineral Resources, 1997. http://dx.doi.org/10.58799/ofr-430.

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