Petrological and geochemical characteristics of the basites of the Tenkelyakh area
https://doi.org/10.31242/2618-9712-2019-24-1-33-42
Abstract
The study of the material composition of Middle Paleozoic basites from the Tenkelyakh area, located within the Vilyui-Markha dike belt in the eastern part of the Siberian platform was made. The basites of the region are characterized by an increased content of titanium, potassium, phosphorus, and incompatible elements and by a significant differentiation of REE (La / Yb) n = 5.5-7.0, which are typical features of Devonian basites. Comparing them with the dominant type of even-aged basites of the Vilyui- Markha dyke belt, adjacent to the territory of the object under study, showed the identity of their petrographic, chemical and trace element compositions. High-Ti basites (> 4.5% TiO2 ) are locally found within the Tenkelyakh area are established, which, according to previous studies [12, 13], are usually adjacent to kimberlite pipes and can be used as indicators of search of promising areas for indigenous diamond sources.
Supporting agencies: This work was supported by the RFBR grant 18-45-140043 p_a «Trapps of the East of the Siberian Platform» and within the framework of the research plan of the Institute of Socio-Physical Engineering SB RAS.
About the Authors
S. S. Gogoleva
Diamond and Precious Metal Geology Institute SB RAS
Russian Federation
Russian Federation
GOGOLEVA Sargylana Semenovna, Junior Researcher, Diamond and Precious Metal Geology Institute SB RAS, 39, pr. Lenina, Yakutsk, 677980, Russia, https://orcid.org/0000-0002-1043-3710, gogoleva_ss@mail.ru;
A. G. Kopylova
Diamond and Precious Metal Geology Institute SB RAS
Russian Federation
Russian Federation
KOPYLOVA Albina Georgievna, Researcher, Diamond and Precious Metal Geology Institute SB RAS, 39, pr. Lenina, Yakutsk, 677980, Russia, kopylova@diamond.ysn.ru.
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For citations:
Gogoleva S.S., Kopylova A.G. Petrological and geochemical characteristics of the basites of the Tenkelyakh area. Arctic and Subarctic Natural Resources. 2019;24(1):33-42. (In Russ.) https://doi.org/10.31242/2618-9712-2019-24-1-33-42
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