High-Phosphorous Lithium–Fluorine Granites of Eastern Yakutia (Verkhoyansk–Kolyma Orogenic Region)
| Autor: | Yu. S. Orlov, A. I. Zaitsev, S. P. Roev, V. A. Trunilina |
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| Rok vydání: | 2019 |
| Předmět: |
020209 energy
Stratigraphy Geochemistry chemistry.chemical_element Cordierite 02 engineering and technology engineering.material 010502 geochemistry & geophysics Oceanography 01 natural sciences Petrography Geochemistry and Petrology 0202 electrical engineering electronic engineering information engineering Chemical composition 0105 earth and related environmental sciences Basalt Andesine Paleontology Geology Geophysics chemistry engineering Fluorine Lithium Protolith |
| Zdroj: | Russian Journal of Pacific Geology. 13:82-98 |
| ISSN: | 1819-7159 1819-7140 |
| DOI: | 10.1134/s1819714019010068 |
| Popis: | The paper considers the petrographic composition and petro- and geochemical features of high-phosphorous lithium–fluorine granites from the Arga–Ynnakh–Khaya and Burgali ore–magmatic clusters in eastern Yakutia. Granitoids of three successively formed petrotypes are recognized here: amphibole–biotite granodiorites and andesine granites close to I-type granitoids; S-type two-mica cordierite granites; and plumasite lithium–fluorine granites. The latter are characterized by extremely high Li, Cs, F, and P contents; they are ascribed to ultra-rare-metal rocks and are not complementary to the preceding granitoids. They are assumed to be the derivatives of independent melts obtained from a lower crustal protolith that was reworked by ore- and volatile-rich fluids related to upwelling subalkaline or alkaline basaltic melts. |
| Databáze: | OpenAIRE |
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