Relevant bibliographies by topics / Structural analysis, calc-alkaline magmatism

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Structural analysis, calc-alkaline magmatism'

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

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Journal articles on the topic "Structural analysis, calc-alkaline magmatism"

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Rodrigues, Rodrigo Antonio de Freitas, Juliana Pertille, Fernanda Gervasoni, et al. "Tonian Continental Arc Magmatism of the Porongos Complex, Dom Feliciano Belt, Southern Brazil." Geologia USP. Série Científica 23, no. 3 (2023): 19–45. http://dx.doi.org/10.11606/issn.2316-9095.v23-208078.

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This study provides new information on the deformation, metamorphism, and tectonic setting of the metavolcanic rocks of the southern portion of the Porongos Complex, southern Brazil. The structural analysis enabled the identification of three deformational phases, formed under ductile to semi-ductile conditions. D1 progressed through deformation partitioning, comprising closed to isoclinal folds and an axial plane foliation. Then, simple shear prevailed, resulting in isoclinal folds, sigma-type porphyroclasts, foliation transposition, and mylonitic rocks. D2 comprises open to gentle folds and
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Prokopyev, I. R., A. G. Doroshkevich, M. D. Varchenko, D. V. Semenova, I. A. Izbrodin, and M. N. Kruk. "MINERALOGY AND ZIRCON AGE OF CARBONATITES OF THE SREDNYAYA ZIMA COMPLEX (EASTERN SAYAN)." Geodynamics & Tectonophysics 15, no. 2 (2024): 0749. http://dx.doi.org/10.5800/gt-2024-15-2-0749.

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The Srednyaya Zima alkaline-ultramafic carbonatite complex is located in the Eastern Sayan and is a part of the area of manifestation of Neoproterozoic rare-metal alkaline-carbonatite magmatism along the southern and southeastern margins of the Siberian craton. Mineralogical studies of calciocarbonatites of the Srednyaya Zima complex have shown the presence of primary magmatic mineral phases of calcite, biotite (annite-phlogopite), ilmenite, and fluorapatite. Pyrochlore, zircon, burbankite, magnetite, rutile, titanite, strontianite, and barite were identified of the accessory minerals. The che
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Belenitskaya, G. A. "On the participation of natural salts in alkaline magmatism. Article 3. Genetic aspects of the model of salt-alkaline interactions." LITHOSPHERE (Russia) 21, no. 2 (2021): 172–97. http://dx.doi.org/10.24930/1681-9004-2021-21-2-172-197.

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Research subject. An analysis of regional and global geological material characterizing the spatio-temporal relationships between alkaline magmatic and saline complexes allowed the author to propose and justify a new geological-genetic model of alkaline magmatism. This model considers saline complexes, located along the paths of the upward movement of deep magmas, as additional sources of alkaline and volatile components.Materials and methods. Three articles are devoted to the discussion and justification of this model. Two articles were devoted to geological aspects of the problem. The prereq
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Grebennikov, A. V., S. A. Kasatkin, and A. I. Khanchuk. "ISOTOPIC AND GEOCHEMICAL ZONALITY OF THE PALEOCENE MAGMATISM IN THE ASIA-PACIFIC TRANSITION ZONE." Tikhookeanskaya Geologiya 43, no. 5 (2024): 54–73. http://dx.doi.org/10.30911/0207-4028-2024-43-5-54-73.

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The diversity of the tholeiitic, alkali or calc-alkali, high-silica, and adakitic rocks (I-, FG- and А-types) in the northeastern margin of Asia often leads to controversial conclusions about the character of magmatism and the active margin evolution in the West Pacific during the Late Mesozoic–Cenozoic. In addition, paleogeodynamic reconstructions of the Asia-Pacific region can only be made based on the synthesis of patterns identified in compositions of magma sources, evolution and character of magmatism, and strain and kinematic analysis of fault tectonics of all parts of the eastern margin
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Bortolozzo, Rômulo, Rafael Rodrigues de Assis, Lorenzzo Cassaro, and Lays Helmer Mengal. "Metallogenic characterization of the Aguinaldo structurally-controlled Epithermal gold occurrence, Alta Floresta Gold Province (Brazil)." Geologia USP. Série Científica 24, no. 4 (2024): 39–62. https://doi.org/10.11606/issn.2316-9095.v24-194388.

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In the eastern-southeast sector of Alta Floresta Gold Province (Amazon Craton), the 1.78 – 1.77 Ga calc-alkaline magmatism is interpreted as answerable for ore-forming processes responsible for its disseminated, vein-type, and filonar gold occurrences hosted in 2.05 – 1.77 Ga units. The Aguinaldo structurally-controlled gold occurrence exhibits ore zones hosted in 0.5 – 1.5m thick quartz + sulfide ± carbonate veins crosscutting the porphyroblastic mylonite orthogneiss, with SHRIMP U-Pb-zircon concordia crystallization age of 1,984.9 ± 5.2 Ma. Distal to ore zones are observed high temperature,
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Lebedev, V. A., G. T. Vashakidze, A. V. Parfenov, and A. I. Yakushev. "The origin of adakite-like magmas in the modern continental ollision zone: evidence from pliocene dacitic volcanism of the Akhalkalaki lava plateau (Javakheti highland, Lesser Kaucasus)." Петрология 27, no. 3 (2019): 327–51. http://dx.doi.org/10.31857/s0869-5903273327-351.

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The paper reports the isotope-geochronological and petrological-geochemical studies of the Pliocene moderately-acid volcanism of the Akhalkalaki Plateau in the central part of the Lesser Caucasus (Javakheti highland, Georgia). K-Ar dating showed that young dacitic lavas and pyroclastic rocks were formed in the Mid-Pliocene (3.28 ± 0.10 Ma) in relation with the explosive–effusive eruptions of small composite volcanic cones and formation of minor extrusive domes confined mainly to the eastern margin of the region. Isotope-geochronological data in the combination with results of structural drilli
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Slaman, L. R., S. M. Barr, C. E. White, and D. van Rooyen. "Age and tectonic setting of granitoid plutons in the Chéticamp belt, western Cape Breton Island, Nova Scotia, Canada." Canadian Journal of Earth Sciences 54, no. 1 (2017): 88–109. http://dx.doi.org/10.1139/cjes-2016-0073.

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Geological mapping in the Chéticamp granitoid belt in combination with petrographic and geochemical studies and U–Pb (zircon) dating by laser ablation inductively coupled plasma mass spectrometry have resulted in major reinterpretation of the geology in the western part of the Ganderian Aspy terrane of Cape Breton Island. Nine new U–Pb (zircon) ages show that the former “Chéticamp pluton” consists of 10 separate plutons of five different ages: late Neoproterozoic (ca. 567 Ma), Cambrian–Ordovician (490–482 Ma), Ordovician–Silurian (442–440 Ma), mid-Silurian (ca. 428 Ma), and late Devonian (366
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Baluev, A. S., Yu V. Brusilovsky, and A. N. Ivanenko. "The crustal structure of Onega-Kandalaksha paleorift identified by complex analysis of the anomalous magnetic field of the White Sea." Geodynamics & Tectonophysics 9, no. 4 (2018): 1293–312. http://dx.doi.org/10.5800/gt-2018-9-4-0396.

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Geological and geophysical studies recently conducted in the White Sea and the adjacent territory have provided new data on the deep structure of this region. Our study aims to conduct complex analysis of the anomalous magnetic field and the geological and geophysical data on the Onega-Kandalaksha paleorift located in the White Sea basin and the adjacent southeastern land area, and to develop a model showing its deep structure. The basis for analysing the magnetic field is the anomalous magnetic field (AMF) map constructed by the authors using the magnetic survey data consolidated by the Marin
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Lawali Idi Chamsi, Sanda Chékaraou Mahamane Moustapha, Ibrahim Maharou Hassane, Hamza Mayaki Issoufou, and Ahmed Yacouba. "Structural relationships of the younger granites of Tirmini (Damagaram south-east, Niger)." World Journal of Advanced Research and Reviews 21, no. 3 (2023): 2201–6. http://dx.doi.org/10.30574/wjarr.2024.21.3.0853.

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The Tirmini anorogenic ring complex is located approximately 25 km west of the town of Zinder, in the pan-African province of Damagaram-Mounio, the southeastern terminus of the Benin-Nigeria Shield. The aim of this study is to characterise the anorogenic deformation affecting the Tirmini younger granites. The petrography of Tirmini evolves from rhyolites to microgranites, granites and quartz alkaline syenite emplaced during anorogenic magmatism in the Permian (295 Ma). Very little structural data is available on the Tirmini complex. Only a cursory study of deformation has been carried out, wit
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Lawali, Idi Chamsi, Chékaraou Mahamane Moustapha Sanda, Maharou Hassane Ibrahim, Mayaki Issoufou Hamza, and Yacouba Ahmed. "Structural relationships of the younger granites of Tirmini (Damagaram south-east, Niger)." World Journal of Advanced Research and Reviews 21, no. 3 (2024): 2201–6. https://doi.org/10.5281/zenodo.14175438.

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The Tirmini anorogenic ring complex is located approximately 25 km west of the town of Zinder, in the pan-African province of Damagaram-Mounio, the southeastern terminus of the Benin-Nigeria Shield. The aim of this study is to characterise the anorogenic deformation affecting the Tirmini younger granites. The petrography of Tirmini evolves from rhyolites to microgranites, granites and quartz alkaline syenite emplaced during anorogenic magmatism in the Permian (295 Ma). Very little structural data is available on the Tirmini complex. Only a cursory study of deformation has been carried out, wit
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Dissertations / Theses on the topic "Structural analysis, calc-alkaline magmatism"

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D'ADDA, PAOLO. "Eo-alpine evolution of the central southern alps. Insights from structural analysis and new geochronological constraints." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/19018.

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The timing of the Alpine deformation in the Central Southern Alps (CSA or Orobic Alps) has always been a debated topic, since the scarcity of reliable absolute age constraints has prevented an accurate chronological reconstruction of the evolution of this sector of the European Alps. In this work, detailed structural analyses performed in different areas of the CSA allowed us to distinguish different compressive features within both the crystalline basement and the sedimentary cover. The integration of these field data with new isotopic data provides time constraints for the reconstruction o
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Book chapters on the topic "Structural analysis, calc-alkaline magmatism"

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Contreras-López, Manuel, Luis Alberto Delgado-Argote, Bodo Weber, Xóchitl Guadalupe Torres-Carrillo, Nina Adhara Elena Ávila-Ortiz, and Juan Andrés Quintana-Delgado. "U-Pb detrital zircon and Sm-Nd garnet–whole-rock geochronology of metasedimentary rocks from the southern Peninsular Ranges Batholith, Baja California, Mexico: Inferred Early Jurassic deposition, followed by Middle Jurassic and Cretaceous metamorphism." In The Virtue of Fieldwork in Volcanology, Sedimentology, Structural Geology, and Tectonics—Celebrating the Career of Cathy Busby. Geological Society of America, 2025. https://doi.org/10.1130/2025.2563(11).

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ABSTRACT Cretaceous (131–92 Ma) plutonic rocks intruded two different NW-SE–oriented belts of host rocks in the southernmost tip of the Peninsular Ranges Batholith. The western belt, which was likely close to the paleotrench, consists of Jurassic metaigneous rocks with oceanic-arc affinity. Toward the continent, the eastern belt is composed of amphibolite, paragneiss and orthogneiss, schist, calc-silicate, marble, and undifferentiated metamorphic rocks, for which the sedimentary protoliths are interpreted as Triassic–Jurassic back-arc assemblages or Paleozoic continental slope and basin sedime
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Yang, Zhiming, and David R. Cooke. "Chapter 5 Porphyry Copper Deposits in China." In Mineral Deposits of China. Society of Economic Geologists, 2019. http://dx.doi.org/10.5382/sp.22.05.

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Abstract Porphyry Cu deposits in China contain a total resource of ~47 million tonnes (Mt) Cu at average grades ranging mostly from 0.2 to 0.7% Cu (most <0.5% Cu), accounting for 42% of China’s Cu reserves. In terms of contained Cu, 14 Cu-rich porphyry deposits are classified as giant (≥2.0 Mt Cu), and 38 are classified as intermediate (≥0.06 Mt Cu). These giant and intermediate deposits are mainly concentrated in seven belts or districts: Gangdese belt, southern Tibet; Yulong and Zhongdian belts, eastern Tibet; Duolong district, central Tibet; Dexing district and Middle-Lower Yangtze R
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