Journal/NDM59 2025 eng — различия между версиями
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'''Keywords:''' libethenite, zincolibethenite, carbon-siliceous slates, zinc, vanadium, arsenic, Khodzha-Rushnay-Mazar, Kester deposit. | '''Keywords:''' libethenite, zincolibethenite, carbon-siliceous slates, zinc, vanadium, arsenic, Khodzha-Rushnay-Mazar, Kester deposit. | ||
| Файл = Karpenko_et_al_3_2025-1.pdf | | Файл = Karpenko_et_al_3_2025-1.pdf | ||
| + | | Приложения = | ||
| + | }} | ||
| + | |||
| + | ==== '''Issue 2''' ==== | ||
| + | {{NDM_article | ||
| + | | Авторы = Spiridonov E.М., Ovsyannikov G.N., Korоtaeva N.N. | ||
| + | | Название = Ti-V Allanite-(Ce), V Allanite-(Ce), Allanite-(Ce), REE Epidote, Y Epidote of island arc biotite-quartz gabbroids at Chamny-Burun intrusion, Mountain Crimea, p. 37-44 | ||
| + | | Аннотация = The article describes rare-earth minerals of the epidote group in biotite-quartz gabbroids of the Chamny-Burun intrusion within the Pervomaisk-Ayu-Dag island-arc complex of Mountain Crimea. Epidote group minerals, poor in Mg, Mn and Th, form syntactic intergrowths with biotite and inclusions in it. Ti-V allanite-(Ce), which is weakly zoned and deep brown in transmitted light, forms allanite crystals cores; it contains 3.5 wt.% of V<sub>2</sub>O<sub>3</sub> and 1.2 wt.% of TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y ~ Pr > Sm ~ Gd ~ Dy. V allanite-(Ce) and allanite-(Ce) form both weakly zoned and complex sectorial-zoned isolated or with REE epidote rims crystals. V allanite-(Ce), which is brown in transmitted light, contains 1.3-2.2 wt.% of V<sub>2</sub>O<sub>3</sub> and 0.9 wt.% of TiO<sub>2</sub>; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Pr > Sm > Gd ~ Dy. Light brown in transmitted light allanite-(Ce) contains up to 0.9 wt.% of V2O3 and TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd > Y >> Pr > Sm ~ Gd ~ Dy. REE epidote forms complex zonal and sectorial-zoned crystals and rims around allanite-(Ce); the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Sm > Gd > Pr >> Dy. Y epidote, containing up to 2.6 wt.% of Y<sub>2</sub>O<sub>3</sub>, forms rims on allanite crystals, epidote group of Chamny-Burun gabbroids and other intrusions of the complex (Ayu-Dag and others) are significantly different: for the first case, Y epidote is present, whereas ferriallanite-(Ce) and allanite-(Y) are absent and vanadium predominates over titanium; the La/Nd value is 1.15-1.3 and hardly changes during the evolution (in other intrusions it changes by several times); the proportion of yttrium in Y+REE is three times higher and it is 11.5% against 4.4% in allanite of other intrusions; the proportion of Sm and Gd in the sum of lanthanides is two times higher and it is 2.7% and 2.2 against 1.1 and 1.2% in allanite of other intrusions. The actual data indicate that the profundity source of the Chamny-Burun intrusion was isolated from other gabbroid intrusions of Mountain Crimea, whereas most researchers believed that all gabbroid bodies are outshots of a single large gabbroid body underlying Mountain Crimean mesozoids.<br> | ||
| + | '''Keywords:''' Ti-V allanite-(Ce), V allanite-(Ce), allanite-(Се), REE epidote, Y e[idote, island-arc biotite-quartz gabbroids, Mountain Crimea. | ||
| + | | Файл = Spiridonov_et_al_1_2025-2.pdf | ||
| Приложения = | | Приложения = | ||
}} | }} | ||
Версия 08:35, 9 сентября 2025
New Data on Minerals, Volume 59, 2025
DEADLINES FOR ARTICLES
Issue 1 - March 31, 2025
Issue 2 - May 31, 2025
Issue 3 - August 31, 2025
Issue 4 - November 30, 2025
Editorial Board
Editor in Chief:
Plechov P.Yu. -D.Sc. in Geology and Mineralogy, Professor
Members of Editorial Board:
Pekov I.V. - Corresponding Member of the Russian Academy of Sciences
Garanin V.K. - D.Sc. in Geology and Mineralogy, Professor
Borutsky B.E. - D.Sc. in Geology and Mineralogy
Spiridonov B.E. - D.Sc. in Geology and Mineralogy
Chukanov N.V. - D.Sc. in Physical and Mathematical Sciences
Kamenetsky V.S. - Professor (University of Tasmania)
Nenasheva S.N. - PhD in Geology and Mineralogy
Matvienko E.N. - PhD in Geology and Mineralogy
Generalov M.E. - PhD in Geology and Mineralogy
Pautov L.A. - Senior Researcher
Layout Designer
Kronrod E.V. - PhD in Chemistry
Content
Issue 1
Pautov L.A., Shodibekov M.A., Makhmadsharif S.
Discovery of tainiolite in the carbonatites of the Dunkeldyk massif, Eastern Pamirs, p. 5-12
Taeniolite, KLiMg2Si4O10F2, was discovered in a strontium-rich carbonatites of the Cenozoic subvolcanic potassium alkaline complex of Dunkeldyk (37о46'50N, 74o59'37E), Eastern Pamir, Gorno-Badakhshan Autonomous Oblast, Tajikistan. Taeniolite occurs as light-brown lamellar grains up to 3 mm in diameter and up to 0.4 mm in thick in a rock, which consists of calcium strontianite (Sr0.54Ca0.46)CO3, fluorite, Sr-bearing calcite, strontianite, Sr-bearing fluorapatite, barite, amphibole group member, which close to magnesio-fluoro-arfvedsonite, aegirine, cancrinite group mineral, ankylite-(Ce) and pyrite. Taeniolite is optically biaxial (–), 2V = 5–10(2)o. Refractive indices of the mineral are: ng = nm = 1.547(2), np= 1.524(2). Taeniolite from the Dunkeldyk massif is characterized with lithium content close to theoretical and extreme fluorine amount. Chemical analysis by electron microprobe (7 points) and LA-ICP-MS for Li gave SiO2 58.98, TiO2 0.09, Al2O3 0.23, FeO 0.51, MnO 0.12, MgO 19.89, K2O 11.28, Na2O 0.38, Li2O 3.65, F 9.24, H2O 0.07, total 104.44; –O=F2 –3.88; total 100.57 wt%. The empirical formula, based on 10 O apfu is: (K0.97Na0.05)1.02(Li0.97Mg0.03)1.00(Mg1.97Fe0.03Mn0.01)2.01(Si3.97Al0.02Ti0.01)4.00O10[F1.97(OH)0.03]2. The main absorption bands in the IR spectrum of taeniolite (cm–1): 1129, 967, 721, 497, 383. In the Raman spectrum, strong lines (cm–1): 184, 258, 295, 307, 334, 701, 956, 1146. X-ray powder pattern of taeniolite is given. Apparently, this is the first discovery of a lithium mineral in the Dunkeldyk carbonatites.
Keywords: minnesotaite, ferrohortonolite-fayalite plagiogranites, Castel Mountain, Mountain Crimean mesozoids. читать далее...
Gritsenko Yu.D., Ogorodova L.P., Vigasina M.F., Dedushenko S.K., Ksenofontov D.A., Melchakova L.V.
Staurolite from staurolite-almandine-muscovite schists of the Patom Highland (Mamsko-Chuisky District, Irkutsk Region): a comprehensive physicochemical study, p. 13-24
The article presents the results of a comprehensive physicochemical study of staurolite from staurolite-almandine-muscovite schists of the Patom Highland of the Mama-Chuisky District (Irkutsk Region) using powder X-ray diffraction, electron probe microanalysis, IR, Raman and Mössbauer spectroscopy. The chemical formula of the mineral is (Fe2+1.7Mg0.3)(Al8.9Mg0.1)(Si3.9Al0.1)O22.8(OH)1.2. The enthalpy of formation of the studied staurolite from the elements was determined for the first time using high-temperature melt solution calorimetry on a Calvet microcalorimeter (– 11998 ± 11 kJ/mol). The value of its standard entropy was estimated and the value of the Gibbs energy of formation was calculated: 489.8 ± 2.1 J/(mol K) and −11271 ± 11 kJ/mol, respectively. The thermodynamic constants for staurolite of the idealized composition Fe2+2Al9Si4O23(OH) were calculated: ΔfH0(298.15 K) = − 11943 ± 12 kJ/mol, ΔfG0(298.15 K) = − 11222 ± 12 kJ/mol
.
Keywords: staurolite, Mamsko-Chuisky district, Patom Highland, Calvet microcalorimetry, enthalpy of formation, entropy, Gibbs energy, IR spectroscopy, Raman spectroscopy, Mössbauer spectroscopy. читать далее...
Karpenko V.Yu., Pautov L.A., Siidra O.I., Agakhanov A.A.
New data on the libethenite-zincolibethenite isomorphic series from the Khodzha-Rushnay-Mazar (S. Fergana, Kyrgyzstan) and the Kester deposit (Yakutia, Russia), p. 25-35
New data for the libethenite Cu2(PO4)(ОН) – zincolibethenite CuZn(PO4)(ОН) series from the Khodzha-Rushnay-Mazar location of V-bearing carbonaceous-siliceous slates (S. Fergana, Kyrgyzstan) and the Kester Sn-deposit (Yakutia, Russia) were obtained. Libethenite from Kyrgyzstan forms radial aggregates of prismatic crystals in which ZnO ranges from 13.1 to 19.6 wt% (0.38 to 0.58 Zn apfu). Vanadium traces occurs in it (0.3–0.4 wt% V). Libethenite from Yakutia forms several morphological varieties - dipyramidal isometric and dipyramidal flattened crystals and prismatic crystals growing on augelite or quartz. The Zn content is more variable and reach 21 wt% ZnO (0.63 Zn apfu). For most analysis, the ZnO content ranges from 13 to 17 (wt%) and tend toward the intermediate composition Cu(Zn0.5Cu0.5)(PO4)(OH). Arsenic occurs in libethenite from Kester (up to 11.8 wt% As2O5). There intense lines (101) and (011) in the libethenite X-ray powder are well resolved for Zn-free varieties, but they overlap for high-Zn libethenite and zincolibethenite, and their resolution requires longer count times. Unit cell volume increases from Zn-free libethenite (396.8 Å3) through Zn-bearing varieties (400.6 and 402.1 Å3) to zincolibethenite (404.5 Å3). Density, microhardness, optical properties and Raman spectra of minerals of the libethenite - zincolibethenite series from S. Fergana and Yakutia are given.
Keywords: libethenite, zincolibethenite, carbon-siliceous slates, zinc, vanadium, arsenic, Khodzha-Rushnay-Mazar, Kester deposit. читать далее...
Issue 2
Spiridonov E.М., Ovsyannikov G.N., Korоtaeva N.N.
Ti-V Allanite-(Ce), V Allanite-(Ce), Allanite-(Ce), REE Epidote, Y Epidote of island arc biotite-quartz gabbroids at Chamny-Burun intrusion, Mountain Crimea, p. 37-44
The article describes rare-earth minerals of the epidote group in biotite-quartz gabbroids of the Chamny-Burun intrusion within the Pervomaisk-Ayu-Dag island-arc complex of Mountain Crimea. Epidote group minerals, poor in Mg, Mn and Th, form syntactic intergrowths with biotite and inclusions in it. Ti-V allanite-(Ce), which is weakly zoned and deep brown in transmitted light, forms allanite crystals cores; it contains 3.5 wt.% of V2O3 and 1.2 wt.% of TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y ~ Pr > Sm ~ Gd ~ Dy. V allanite-(Ce) and allanite-(Ce) form both weakly zoned and complex sectorial-zoned isolated or with REE epidote rims crystals. V allanite-(Ce), which is brown in transmitted light, contains 1.3-2.2 wt.% of V2O3 and 0.9 wt.% of TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Pr > Sm > Gd ~ Dy. Light brown in transmitted light allanite-(Ce) contains up to 0.9 wt.% of V2O3 and TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd > Y >> Pr > Sm ~ Gd ~ Dy. REE epidote forms complex zonal and sectorial-zoned crystals and rims around allanite-(Ce); the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Sm > Gd > Pr >> Dy. Y epidote, containing up to 2.6 wt.% of Y2O3, forms rims on allanite crystals, epidote group of Chamny-Burun gabbroids and other intrusions of the complex (Ayu-Dag and others) are significantly different: for the first case, Y epidote is present, whereas ferriallanite-(Ce) and allanite-(Y) are absent and vanadium predominates over titanium; the La/Nd value is 1.15-1.3 and hardly changes during the evolution (in other intrusions it changes by several times); the proportion of yttrium in Y+REE is three times higher and it is 11.5% against 4.4% in allanite of other intrusions; the proportion of Sm and Gd in the sum of lanthanides is two times higher and it is 2.7% and 2.2 against 1.1 and 1.2% in allanite of other intrusions. The actual data indicate that the profundity source of the Chamny-Burun intrusion was isolated from other gabbroid intrusions of Mountain Crimea, whereas most researchers believed that all gabbroid bodies are outshots of a single large gabbroid body underlying Mountain Crimean mesozoids.
Keywords: Ti-V allanite-(Ce), V allanite-(Ce), allanite-(Се), REE epidote, Y e[idote, island-arc biotite-quartz gabbroids, Mountain Crimea. читать далее...
