Apatite is a widespread accessory mineral in igneous, metamorphic, and clastic sedimentary rocks and can be dated using four radioactive decay schemes, each with a different temperature window for isotopic closure: Lu–Hf (675–750 °C); U–Pb (350–550 °C); apatite fission track (60–110 °C); (U–Th)/He (40–80 °C).
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Apatite is a ubiquitous accessory mineral in a variety of rocks and hydrothermal ores. Strontium isotopes of apatite are well known to retain petrogenetic information and have been widely used to investigate the origin of igneous rocks, but such attempts have rarely been made to constrain ore-forming processes of hydrothermal …
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Apatite is a mineral that is composed of calcium phosphate, with the chemical formula Ca5(PO4)3(OH,F,Cl). It is a member of the apatite group of minerals, which also includes hydroxylapatite and …
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Apatite from the potassic, sodic–calcic, chlorite–sericite, phyllic, and propylitic alteration zones associated with the No. 2 porphyry Cu–Au deposit in the Xiongcun district does not display any notable variations in visible light and BSE images, but has distinct CL characteristics. ... Canada. Eur. J. Mineral., 1–19 (2018), 10.1016/10 ...
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The Benjamin River apatite prospect in northern New Brunswick, Canada, is hosted by the Late Silurian Dickie Brook plutonic complex, which is …
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The Crystallinity of Apatite in Contact with Metamict Pyrochlore from the Silver Crater Mine, ON, Canada ... Gainesville, FL 32611, USA; anderkinc@ufl.edu * Correspondence: [email protected]
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Almost all the rocks of the glimmerite-carbonatite series can be considered economic for apatite exploitation (O'Brien et al., 2015). The analyses performed in the frame of this study confirm the enrichment in phosphate of these rocks (2.32 < P 2 O 5 <34.18 wt%), apart from the carbonate glimmerite that contains only 0.23 wt% P 2 O 5.
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1. Introduction. On Earth, magmatic volatiles (i.e., H 2 O, F, Cl, C-species, and S-species) play an important role in the physicochemical processes that control thermal stabilities of minerals and melts, magma eruptive processes, and transportation of economically important metals. On the Moon, magmatic volatiles in igneous systems are …
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The other two common minerals of the apatite group are chlorapatite and fluorapatite. Geological apatite, which is the most abundant phosphate mineral in the Earth's crust, typically has various proportions of OH −, F −, and Cl − within the channel site [8], [9]. Fluorapatite is the mineral that we artificially create on the outer surface ...
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"Apatite" is a field term for unidentified calcium phosphate members of the apatite group. Most "apatite" is fluorapatite, whereas hydroxylapatite is much less common and chlorapatite is very rare. "Apatite" crystals are short to long hexagonal prisms [0001], with {10 1 0} and {10 1 1} dominant; also thick tabular {0001}, frequently in the crystals of …
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This study presents preliminary results and interpretations of new apatite fission-track (AFT) analyses to elucidate the low-temperature (<110°C) history across Canada. AFT modeling of samples...
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Experiments have been conducted in the range 3–15 GPa and 850–1800°C to investigate the P–T stability field of OH-apatite in an average mid-ocean ridge basalt (MORB) and a model Mg-basalt, to study the compositional evolution of apatite and its breakdown products and the partitioning of P between phosphates and silicates. In the bulk …
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Apatite lacks fluid or solid inclusions of other minerals. The apatite is rich in Sr (7030–13,000 ppm) and rare earth elements and exhibits depletions in La, Ce, Pr and …
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The distribution and abundance of major, minor and trace elements in hydrothermal and magmatic apatite associated with the Cantung W-Cu skarn deposit, Northwest Territories, Canada was studied to ...
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Lunar science. Moon rocks collected by astronauts during the Apollo program contain traces of apatite. Re-analysis of these samples in 2010 revealed water trapped in the mineral as hydroxyl, leading to estimates of water on the lunar surface at a rate of at least 64 parts per billion – 100 times greater than previous estimates – and as high as 5 parts per million.
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Apatite crystals are a favorite among collectors with their stubby, terminated, hexagonal prisms, glassy transparency, and soft, yellow-to-greenish-yellow or blue mineral colors.These beautiful crystals rank high on blue gems and minerals lists.Much is mined in Mexico.. However, most of the apatite in the Earth's crust occurs not as macrocrystals, …
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The geochemistry of apatite crystals from fifteen fertile and infertile Acadian-related granitoids of New Brunswick (Canada) was studied in situ, using electron microprobe and laser ablation-inductively coupled plasma-mass spectrometry to further investigate petrogenesis and fertility index among these intrusions. The results indicate …
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1. Introduction. As a commonly non-metallic element, phosphorus plays a pivotal role in living cells and is widely used in agriculture and medicine engineering (Feng et al., 2022, Liu et al., 2021).Phosphate ores as the primary sources of phosphorus are vital raw materials in the phosphorus industry, and one of phosphate ores valuable minerals …
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apatite exploitation in florida in canada . China Heavy Industry is an import-export joint-stock company that specializes in the production of large and medium-sized …
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Melt inclusions in apatite from the Schickler Occurence and Dwyer mine, two fluorite-bearing carbonatitic "vein dikes'' situated near the town of Wilberforce, Ontario, Canada, are examined in an ...
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Apatite from relatively fresh norite and melanorites from the Pd-sulfide zone contain up to 57 mol% chlorapatite endmember with significant hydroxyapatite component.
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We operate one of the largest paper processing plants in North Florida. >> [ Get Price ] FPM … » Free online chat! apatite exploitation in florida in Canada – Gulin Mineral Processing … Metal mineral processing Non-metallic mineral processing: Stone crushing plant. … very complex development. along the Atlantic coast from North ...
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Introduction. Recent investigations [1, 2] and earlier works [3, 4] have shown that the mineral of cardiovascular pathological deposits consists of poorly crystalline carbonate-substituted apatite.However, the chemical diversity of biological apatites [5, 6] allows great variability in their reactivity and biological properties providing a unique …
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PDF | On Mar 19, 2019, Nicolas Pinet published Preliminary compilation of apatite fission-track data in Canada | Find, read and cite all the research you need on ResearchGate
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Formation of chlor- and fluor-apatite in layered intrusions; a comment Alan Boudreau. Alan Boudreau Duke University, Department of Geology, Durham, NC, United States. Search for other works by this author on: GSW. Google Scholar. Author and Article Information Alan Boudreau Duke University, Department of Geology, Durham, NC, United States ...
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Evidence of apatite crystal-plastic deformation and recrystallization. •. Apatite recrystallized at condition of ∼480 - 530°C and 2.2 – 5.0 kbar. •. Recrystallized apatite …
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Apatite is a moderately common mineral in fine-grained carbonaceous sedimentary rocks. This mineral has been interpreted to form at or near the sediment-water interface (e.g., Miocene Monterey Bay Formation; Föllmi et al. 2005), or within the upper part of the sediment pile during early diagenesis (e.g., Peru continental margin; Froelich …
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Apatite occurs in a variety of geological environments but can be well developed in granitic pegmatites. It may be colorless, white, brown, green, yellow, blue or purple. In apatite, the purple color is caused by manganese. Purple apatite is found in a number of localities around the world, including several in Maine.
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Semantic Scholar extracted view of "The origin of mineralizing hydrothermal fluids recorded in apatite chemistry at the Cantung W–Cu skarn deposit, NWT, Canada" by E. Adlakha et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,381,722 papers from all fields of science ...
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