Trace element composition (ppm) of zircon from leucogranites of the Laghman complex

E. V. Levashova¹, S. G. Skublov^{1, 2}, N. Hamdard², M. A. Ivanov², V. S. Stativko^{1, 2}

¹ Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, St. Petersburg, Russia
² Empress Catherine II St. Petersburg Mining University, St. Petersburg, Russia

Abstract

For the first time, a study was carried out on the geochemistry of zircon (SIMS method, 2 samples, 20 points) from leucogranites of the Laghman complex, located in the pegmatite-bearing (LCT-type) province of Nuristan (Afghanistan). Zircon is characterized by a high Hf content (up to 34500 ppm), which tends to increase towards the edges of the grains. An increase in the content of Li, Ca, and U is correlated with an increase in Hf. The content of Ti varies slightly and corresponds to the crystallization temperature of zircon about 700 °C. The pattern of REE distribution is unusual. In most grains there is no positive Ce-anomaly, which is not typical for igneous zircon. For a number of grains, the marginal zones are distinguished by a reduced content of REE and a flat distribution pattern of light REE. The detailed analysis of these data is presented by authors in the article "Geochemistry of Zircon from Pegmatite-bearing Leucogranites of the Laghman Complex, Nuristan Province, Afghanistan" published in the Russian Journal of Earth Sciences (https://doi.org/10.2205/2024ES000916).

Database creation date: 2024; Publication date: 19 June 2024

Contributors: Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, St. Petersburg, Russia
Institutions: Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, St. Petersburg, Russia;
Empress Catherine II St. Petersburg Mining University, St. Petersburg, Russia
Publisher: Geophysical Center of the Russian Academy of Sciences (GC RAS), Moscow, Russia (http://www.gcras.ru/eng/)

Data format: .pdf (Portable Document Format)

doi: 10.2205/2024es000916-data

Citation: Levashova, E. V., S. G. Skublov, N. Hamdard, M. A. Ivanov, V. S. Stativko (2024) Trace element composition (ppm) of zircon from leucogranites of the Laghman complex. ESDB repository, GCRAS, Moscow, https://doi.org/10.2205/2024es000916-data

License:  This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

URL for downloading: http://esdb.wdcb.ru/doi/2024/2024es000916-data/2024es000916-data.pdf

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