Academic literature on the topic 'Sedimentary Crystallization'

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Journal articles on the topic "Sedimentary Crystallization"

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Kazim, Muna Faraj, Muthana khleel Ibrahiem, and Ahmed R. Abd ElLatif. "Effect of Sedimentary Environment in Iron and Manganese Crystallization Index of some Soil of Anbar Government." IOP Conference Series: Earth and Environmental Science 1262, no. 8 (2023): 082043. http://dx.doi.org/10.1088/1755-1315/1262/8/082043.

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Abstract This study was conducted to elucidate the impact of depositional conditions on different sedimentary and desert environments on the crystallization index of iron and manganese. The study area is located within the administrative boundaries of Anbar Governorate. Eight desert valleys were selected, including Al-Qaim Valley, Al-Mohammadi Valley, Al-Damamah Valley, Hauran Valley, Al-Baghdadi Valley, Zaghdan Valley, Al-Sahliyah Valley, and Al-Sheikh Hadeed Valley, with two pedons per site, one in the sedimentary deposits and one in the desert deposits. The samples were prepared for laborat
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Doig, Ronald, J. Brendan Murphy, and R. Damian Nance. "U–Pb geochronology of Late Proterozoic rocks of the eastern Cobequid Highlands, Avalon Composite Terrane, Nova Scotia." Canadian Journal of Earth Sciences 28, no. 4 (1991): 504–11. http://dx.doi.org/10.1139/e91-044.

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In the Cobequid Highlands of Nova Scotia, low-grade late Precambrian arc-related volcano-sedimentry rocks typical of the Avalon Composite Terrane overlie platformal metasedimentry rocks and are spatially associated with gneisses previously considered to be basement to both these units. U–Pb zircon dates of 580–587 Ma from an orthogneiss and an amphibolite are similar to the U–Pb zircon dates of 580–610 Ma from both syntectonic granites in ductile shear zones and high-level posttectonic plutons that intruded the Avalonian successions. Hence, the gneisses do not represent basement but are an int
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Glushkova, V. E., I. S. Peretyazhko, E. A. Savina, and Е. А. Khromova. "Minerals of the Olivine Group from Melilite–Nepheline Paralavas of Combustion Metamorphic Complexes of Mongolia." Zapiski RMO (Proceedings of the Russian Mineralogical Society) CLII, no. 1 (2023): 61–77. http://dx.doi.org/10.31857/s0869605523010045.

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Olivine group minerals were formed in melilite-nepheline paralavas in two combustion metamorphic (CM) complexes as result of thermal alterations of sedimentary rocks caused by multistage current and quaternary wild coal fires. Products of decomposition of the olivine solid solution into Ca-bearing fayalite and kirschsteinite have been found in paralavas of the Khamaryn–Khural–Khiid CM complex. And, besides these two minerals, forterite–fayalite, monticellite–kirschsteinite and simplectite intergrowths of kirschsteinite with nepheline were detected in paralavas of the Nyalga PM complex. Olivine
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Peretyazhko, Igor S., and Elena A. Savina. "Melting Processes of Pelitic Rocks in Combustion Metamorphic Complexes of Mongolia: Mineral Chemistry, Raman Spectroscopy, Formation Conditions of Mullite, Silicate Spinel, Silica Polymorphs, and Cordierite-Group Minerals." Geosciences 13, no. 12 (2023): 377. http://dx.doi.org/10.3390/geosciences13120377.

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Melted rocks (clinkers and paralavas) of the Mongolian combustion metamorphic (CM) complexes were formed during modern and ancient (since the Quaternary) wild-fires of brown coal layers in the sedimentary strata of the Early Cretaceous Dzunbain Formation. According to XRD, Raman spectroscopy, and SEM-EDS data, cordierite, sekaninaite, indialite, ferroindialite, silica polymorphs, mullite, Fe-mullite, anhydrous Al-Fe-Mg silicate spinel (presumably new mineral), and other phases were identified. It has been established that isomorphic impurity of potassium in the cordierite-group minerals does n
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Putnis, Andrew, Manuel Prieto, and Lurdes Fernandez-Diaz. "Fluid supersaturation and crystallization in porous media." Geological Magazine 132, no. 1 (1995): 1–13. http://dx.doi.org/10.1017/s0016756800011389.

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AbstractThe relationship between the supersaturation at the point of crystallization and the rate at which supersaturation increases has been studied from nucleation experiments on barite BaSO4, strontianite SrCO3, witherite BaCO3 and gypsum CaSO4.2H2O. The crystallization experiments have been carried out by the counter-diifusion of cations and anions through a column of porous silica gel transport medium. Nucleation is suppressed in a finely-porous medium resulting in very high values of supersaturation before crystallization from the solution begins. This threshold supersaturation for nucle
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Machado, Marcos Da Silva, Guilherme Loriato Potratz, Marcio Ignacio Alves, et al. "SHRIMP U-PB DATA OF THE PALEOPROTEROZOIC, REGIÃO DOS LAGOS COMPLEX, RIO DE JANEIRO, BRAZIL: IMPLICATIONS TO RIBEIRA BELT EVOLUTION." Journal of Sedimentary Environments 2, no. 4 (2008): 301–18. http://dx.doi.org/10.12957/jse.2017.32650.

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The studied region is located in the Rio de Janeiro State (SE, Brazil) and is part of the Ribeira Belt, in the central portion of the Mantiqueira Province. The rocks of this region were included in the Brasiliano/Pan-African orogeny, from Neoproterozoic to the early Paleozoic. The basement is comprised of Paleoproterozoic rocks, sedimentary and volcano-sedimentary rocks from Mesoproterozoic and Neoproterozoic and intrusive granitic rocks from the Neoproterozoic. These rocks are interpreted as associations of magmatic arcs, sedimentary sequences of passive margins and tardi-kinematic granites,
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García-Romero, Emilia, and Mercedes Suárez. "A structure-based argument for non-classical crystal growth in natural clay minerals." Mineralogical Magazine 82, no. 1 (2018): 171–80. http://dx.doi.org/10.1180/minmag.2017.081.031.

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ABSTRACTEvidence of crystallization by particle attachment in synthetic materials is described in numerous contributions. However, efforts to establish the contribution of the particle attachment mechanism to inorganic crystallization in natural environments have barely begun. Here, we show, for the first time, evidence that confirms oriented particle attachment as a crystal growth mechanism that is relevant in sedimentary environments. In these natural settings, oriented particle attachment operates during the formation of highly anisotropically structured clay minerals, which constitute one
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Minguez, Jose Maria, and Javier Elorza. "Diagenetic volume-for-volume replacement: force of crystallization and depression of dissolution." Mineralogical Magazine 58, no. 390 (1994): 135–42. http://dx.doi.org/10.1180/minmag.1994.058.390.12.

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AbstractThe concept of force of crystallization is combined with that of depression of dissolution to explain diagenetic volume-for-volume replacement in both cases, either when the pressure is increased in early sedimentary settings, or when it is diminished in a late exposure. Also, a new textural criterion is added to the three classical ones in order to recognize diagenetic volume-for-volume replacement, and calculations are carried out to estimate the speed of the replacement.
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Alexeev, N. L., V. A. Maslov, V. D. Kaminsky, et al. "New data on the age of metamorphic rocks from the granite-greenstone ruker terrane (the southern Prince Charles Mountains, East Antarctica)." Доклады Академии наук 487, no. 6 (2019): 644–49. http://dx.doi.org/10.31857/s0869-56524876644-649.

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Paper presents results of isotope studies of primary igneous and sedimentary rocks of Mawson and Menzies series from the southern Prince Charles Mountains, East Antarctica. Obtained data show that igneous protholith crystallization of Mawson orthogneiss occurred at 3164,2±9,2-3163,2±7,8 Ma ago. The Mawson orthogneiss were a basement for Menzies series sediment. The maximum time of sediment deposition is estimated to be in the range of 3,0-3,1 Ga. Sediment protholith involves an admixture of Paleoarchean material.
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Pereira, Manuel Francisco, Cristina Gama, Ícaro Dias da Silva, et al. "Chronostratigraphic framework and provenance of the Ossa-Morena Zone Carboniferous basins (southwest Iberia)." Solid Earth 11, no. 4 (2020): 1291–312. http://dx.doi.org/10.5194/se-11-1291-2020.

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Abstract. Carboniferous siliciclastic and silicic magmatic rocks from the Santa Susana–São Cristovão and Cabrela regions contain valuable information regarding the timing of synorogenic processes in SW Iberia. In this region of the Ossa-Morena Zone (OMZ), late Carboniferous terrigenous strata (i.e., the Santa Susana Formation) unconformably overlie early Carboniferous marine siliciclastic deposits alternating with volcanic rocks (i.e., the Toca da Moura volcano-sedimentary complex). Lying below this intra-Carboniferous unconformity, the Toca da Moura volcano-sedimentary complex is intruded and
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Dissertations / Theses on the topic "Sedimentary Crystallization"

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Bayat, Ya, S. H. Mousavi, F. Bayat, G. R. Nasad, and T. Gholamhosseini. "Preparation nano sized HMX by using ultrasonic waves." Thesis, Sumy State University, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20689.

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The researches done on particle size of explosive materials show that with reducing of particle size of explosive materials, reduced impact, friction and shock waves sensitivity. also by using of ultrafine explosive materials in propellant in comparison to larger particle size improved density, stability, calory and mechanical properties. Meanwhile the reduction of particle size of explosive materials influence on combustion mechanism of propellant and reduced burning rate and exponent pressure of different methods used for reduction of particle size, for example, milling, crystallizatio
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Book chapters on the topic "Sedimentary Crystallization"

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Quesnel, Benoît, Christophe Scheffer, and Georges Beaudoin. "The Light Stable Isotope (Hydrogen, Boron, Carbon, Nitrogen, Oxygen, Silicon, Sulfur) Composition of Orogenic Gold Deposits." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_10.

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AbstractOrogenic gold deposits formed in various terranes of most ages since the Paleoarchean and generally consist of quartz veins hosted in shear zones formed at the ductile brittle transition under greenschist to lower amphibolite metamorphic conditions. Vein mineralogy is dominated by quartz with various amounts of silicates, carbonates, phyllosilicates, borates, tungstates, sulfides, and oxides. The isotopic composition of these minerals and fluid inclusions has been investigated since the 1960s to constrain the characteristics of orogenic fluid systems involved in the formation of gold d
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Nicholson, S. W., W. F. Cannon, and K. J. Schulz. "Metallogeny of the Midcontinent Rift System of North America." In Keweenawan Copper Deposits of Western Upper Michigan. Society of Economic Geologists, 1992. http://dx.doi.org/10.5382/gb.13.01.

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Abstract Nicholson. S. W., Cannon, W.F. and Schulz,'K.J ., 1992. Metallogeny of the Midcontinent rift system of North America. In: G. Gaal and K. Schulz (Editors). Precambrian Metallogeny Related to Plate Tectonics. Precambrian Res., 58: 000-000. The 1.1 Ga Mtidcontinent rift system of North America is one of the world's major continental rifts and hosts a variety of mineral deposits. The rocks and mineral deposits of this 2000 km long rift are exposed only in the Lake Superior region. In the Lake Superior region, the rift cuts across Precambrian basement terranes ranging in age from ~1850 Ma
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Tanaka, C., and Y. Ogawa. "Data Report: Silica Mineral Crystallization with Textural Change of Cretaceous Siliceous/Calcareous Pelagic Sedimentary Rocks Recovered from the Northwest Pacific, ODP Leg 185." In Proceedings of the Ocean Drilling Program, 185 Scientific Results. Ocean Drilling Program, 2006. http://dx.doi.org/10.2973/odp.proc.sr.185.004.2006.

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Waite, Kimberly A., Jeffrey D. Keith, Eric H. Christiansen, et al. "Petrogenesis of the Volcanic and Intrusive Rocks Associated with the Bingham Canyon Porphyry Cu-Au-Mo Deposit, Utah." In Geology and Ore Deposits of the Oquirrh and Wasatch Mountains, Utah. Society of Economic Geologists, 1998. http://dx.doi.org/10.5382/gb.29.06.

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Abstract Recent examination of volcanic rocks near the Bingham Canyon Cu-Au-Mo deposit, Utah, suggests that primitive alkaline magmas are an important factor in the formation of this world-class porphyry copper deposit. The Bingham deposit is spatially associated with a monzonitic intrusive complex emplaced at 39 to 37 Ma into Paleozoic sedimentary rocks. Coeval igneous rocks vented to the surface and formed a volcanic pile, part of which is preserved on the eastern flank of the Oquirrh Mountains. Bingham volcanic rocks are divided into three chrono-lithologic suites: an older volcanic suite,
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Reports on the topic "Sedimentary Crystallization"

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McLemore, Virginia T., Nels Iverson, Snir Woodard, et al. Geology and Mineral Deposits of the Cornudas Mountains, Otero County, New Mexico. New Mexico Bureau of Geology and Mineral Resources, 2022. http://dx.doi.org/10.58799/ofr-619.

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Re-examination of the rare earth elements (REE) deposits in the Cornudas Mountains is warranted in light of today's economic importance of critical minerals, including REE that are essential in most of our electronic devices. New mapping, petrography, 40Ar/39Ar geochronology, and geochemical analyses have provided a better understanding of the emplacement of these intrusions and associated mineral deposits. The Cornudas Mountains form the northern Trans-Pecos alkaline magmatic province in the southern part of the North American Cordilleran alkaline-igneous belt. The igneous rocks in the Cornud
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