Results 31 to 40 of about 5,763 (231)

Laser ablation split-stream analysis of the Sm-Nd and U-Pb isotope compositions of monazite, titanite, and apatite – Improvements, potential reference materials, and application to the Archean Saglek Block gneisses

, 2020
Continued improvements in both ICPMS (inductively-coupled plasma mass spectrometry) and laser ablation technologies are fueling advancements in accessory mineral investigations and their related isotope systems of interest, and are now being applied to a
C. Fisher, A. Bauer, Yan Luo, C. Sarkar, J. Hanchar, J. Vervoort, Simon Tapster, M. Horstwood, D. Graham Pearson   +8 more
semanticscholar   +1 more source

Ti MINERALS IN ORES AND SKARNS OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN [PDF]

Минералогия
The article characterizes Ti minerals from different mineral assemblages of the Aktash magnetite-polymetallic deposit (Western Karamazar, Northern Tajikistan).
U.A. Yatimov, I.A. Blinov, M.A. Rassomakhin, S.M. Lebedeva, N.S. Safaraliev   +4 more
doaj   +1 more source

The inclusion of grothite in the zircon from granitoids of the crystalline basement of the Southern Yamal Peninsula

Vestnik MGTU, 2019
Grothite – rare F-Al-rich type of titanite – has been found in accessory zircon from the granitoids of the pre-Jurassic basement of the Verkhnerechensky oil-gas area (in the southern part of the Yamal Peninsula) as a result of the study.
Erokhin Yu. V., Ivanov K. S. , Khiller V. V.   +2 more
doaj   +1 more source

Radiometric ages and other isotopic data bearing on the evolution of Archaean crust and ores in the Kuhmo-Suomussalmi area, eastern Finland [PDF]

Bulletin of the Geological Society of Finland, 1999
The Archaean greenstone-gneiss terrain in the Kuhmo-Suomussalmi district in eastern Finland has been isotopically studied in connection with regional bedrock mapping and local mineral exploration projects.
M. Vaasjoki, K. Taipale, I. Tuokko
doaj   +1 more source

Titanite Mineralization of Microbial Bioalteration Textures in Jurassic Volcanic Glass, Coast Range Ophiolite, California

Frontiers in Earth Science, 2019
Volcanic glasses are rarely preserved in the rock record, and the quality of preservation generally declines with increasing age. Records preserved in ancient basaltic glasses therefore provide important links between processes operating in the distant ...
Matthew R. M. Izawa, Matthew R. M. Izawa, Neil R. Banerjee, John W. Shervais, Roberta L. Flemming, Callum J. Hetherington, Karlis Muehlenbachs, Cynthia Schultz, Debarati Das, Barry B. Hanan   +9 more
doaj   +1 more source

Local Phenomena in meta-mict Titanite

Acta Physica Polonica A, 2010
Pure titanite is a mineral with chemical composition CaTiSiO5. Its structure consists of corner linked TiO6-octahedra, SiO4-tetrahedra and sevenfold coordinated Ca positions. In nature various impurities like U and Th can be incorporated in the structure showing alpha and beta radiation.
Bismayer, U., Paulmann, C., Groat, L., Zhang, M.   +3 more
openaire   +2 more sources

Compositional Variations of Titanite: A Possible New Tool for Cyprus-Type Volcanogenic Massive Sulfide Deposit Prospecting

Geosciences, 2020
Titanite in submarine mafic magmatic rocks of Neotethyan origin was studied to reveal its possible use as an indicator mineral of modern Cyprus-type VMS deposits.
Gabriella B. Kiss, Federica Zaccarini
doaj   +1 more source

Geochemical behavior of chromium in minerals of high-Mg rocks, associated with granitoid massifs of the Urals

Литосфера, 2019
Research subject. High-magnesium rocks associated with the granitoid massifs of the Urals are represented by gabbro-diorites and their melanocratic varieties (hornblendites), as well as by diorites and quartz diorites.
S. V. Pribavkin, G. A. Кallistov, Т. A. Оsipova, I. A. Gottman, E. A. Zin’kova   +4 more
doaj   +1 more source

Timing of carbonatite-hosted U-polymetallic mineralization in the supergiant Huayangchuan deposit, Qinling Orogen: Constraints from titanite U–Pb and molybdenite Re–Os dating

Geoscience Frontiers, 2020
The newly-discovered supergiant Huayangchuan uranium (U)-polymetallic (Sr, Se, REEs, Ba, Nb and Pb) deposit is located in the Qinling Orogen, central China.
Hui Zheng, Huayong Chen, Li Dengfeng, Chao Wu, Xi Chen, Chunkit Lai   +5 more
semanticscholar   +1 more source

Optical and Spectroscopic Properties of Lorenzenite, Loparite, Perovskite, Titanite, Apatite, Carbonates from the Khibiny, Lovozero, Kovdor, and Afrikanda Alkaline Intrusion of Kola Peninsula (NE Fennoscandia)

Crystals, 2022
This manuscript deals with the analysis of significant rare earth elements (REE) minerals such as eudialyte, lorenzenite, loparite, perovskite, titanite, apatite, and carbonates.
Miłosz Huber, Daniel Kamiński, Grzegorz Czernel, Evgeni Kozlov   +3 more
doaj   +1 more source