Abstract
The paper presents new isotopic U–Pb data (LA-ICP-MS method) of zircon from the main types of intrusive rocks at the Kuru-Tegerek gold-copper-molybdenum skarn deposit situated in the Chatkal segment of the Middle Tien Shan. This and other gold, copper, tungsten and molybdenum deposits are parts of the extended Late Paleozoic metallogenic belt of Tien Shan. The concordant isotopic U–Pb values obtained for zircon autocrysts from the rocks of sequential intrusive phases span over the interval from approximately 323 to 311 Ma. This interval comprises the crystallization of gabbro-diorite (from 323.5 ± 2.5 Ma to 323.2 ± 6.8 Ma) and tonalite (from 321.4 ± 3.8 Ma to 311 ± 3.8 Ma). The age dates obtained for these zircon autocrysts correspond to the emplacement of these moderate-potassic intrusions in the Late Carboniferous and are almost coincident with the isotopic dates previously known for the high-potassic intrusions of the porphyry Cu–Au–Mo deposits of the Almalyk mineralized cluster (Kurama segment of the Middle Tien Shan), which were also emplaced in the Late Carboniferous (about 330–310 Ma). This corresponds to the subduction tectonic regime occurred in this region in relation to the steep-dipping (in the Kurama segment) or flat (in the Chatkal segment) subduction of a tectonic plate toward the north, under the structures of the Kazakhstan–North Tien Shan continental massif and accreted segments of the Middle Tien Shan. The intrusive rocks studied at the Kuru-Tegerek deposit contain also zircon xenocrysts (including these in the core of complex crystals) with the isotopic U–Pb age of some 1.9–2.1 Ga. These dates are in agreement with the age of metamorphic rocks in the Tarim craton basement and indicate the presence of the ancient continental crust in this segment of the Middle Tien Shan.
Similar content being viewed by others
REFERENCES
V. S. Kudrin, S. G. Soloviev, V. A. Stavinsky, and L. L. Kabardin, Int. Geol. Rev. 32, 930–941 (1990).
A. Yakubchuk, A. Cole, R. Seltmann, and V. Shatov, in Integrated Methods for Discovery: Global Exploration in Twenty-First Century, Ed. by R. Goldfarb and R. Nielsen (Soc. Econom. Geol., 2002), Vol. 9, pp. 77–201.
R. Seltmann, D. Konopelko, G. Biske, F. Divaev, and S. Sergeev, J. Asian Earth Sci. 42, 821–838 (2011).
R. Seltmann, T. M. Porter, and F. Pirajno, J. Asian Earth Sci. 79, 810–841 (2014).
Z. Cheng, Z. Zhang, F. Chai, T. Hou, M. Santosh, A. Turesebekov, and B. S. Nurtaev, Int. Geol. Rev. 60, 1–20 (2017).
X.-B. Zhao, C.-J. Xue, G.-X. Chi, X.-X. Mo, B. Nurtaev, and G.-Z. Zhang, Ore Geol. Rev. 86, 807–824 (2017).
K. V. Seliverstov, and M. D. Ges’, Russ. Geol. Geophys. 42, 1393–1397 (2001).
S. G. Soloviev, S. G. Kryazhev, and S. S. Dvurechenskaya, Miner. Deposita 53 (2), 195–223 (2018).
K. V. Podlesskii, D. K. Vlasova, and P. F. Kudrya, in Gold and Silver Deposits: Metasomatism, Mineralogy and Genesis, Ed. by D. S. Korzhinsky (Nauka, Moscow, 1984), pp. 167–212 [in Russian].
N. Yu. Novikova, Extended Abstract of Candidate’s Dissertation in Geology and Mineralogy (MSU, Moscow, 1989).
S. Rowins, Geology 28 (6), 491–491 (2000).
B. Zu, R. Seltmann, C. Xue, T. Wang, A. Dolgopolova, C. Li, L. Zhou, N. Pak, E. Ivleva, M. Chai, and X. Zhao, Ore Geol. Rev. 113, 103077 (2019).
W. L. Griffin, W. J. Powell, N. J. Pearson, and S. Y. O’Reilly, in GLITTER: Data Reduction Software for Laser Ablation ICP-MS, Ed. by P. Sylvester (Miner. Assoc. Canada, 2008), Vol. 40, pp. 307–311.
J. Hiess, D. J. Condon, N. McLean, and S. R. Noble, Science 335, 1610–1614 (2012).
J. Slama, J. Kosler, D. J. Condon, et al., Chem. Geol. 249 (1–2), 1–35 (2008).
K. Ludwig, ISOPLOT 3.00. A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronol. Center Spec. Publ. No. 4 (Berkeley Geochronol. Center, Berkeley, CA, 2003).
L. P. Black, S. L. Kamo, C. M. Allen, et al., Chem. Geol. 205, 115–140 (2004).
J. S. Miller, J. E. Matzel, C. F. Miller, S. D. Burgess, and R. B. Miller, J. Volcanol. Geotherm. Res. 167 (1/4), 282–299 (2007).
J. A. Pearce and D. W. Peate, Annu. Rev. Earth Planet. Sci. 23, 251–285 (1995).
A. Kroner, D. V. Alexeiev, V. P. Kovach, Ya. Rojas-Agramonte, A. A. Tretyakov, A. V. Mikolaichuk, H. Q. Xie, and E. R. Sobel, J. Asian Earth Sci. 135, 122–135 (2017).
ACKNOWLEDGMENTS
We are grateful to A.V. Tyshkevich (Central Research Institute of Geological Prospecting for Base and Precious Metals (TsNIGRI), Moscow, Russia) for processing and preparation of zircon samples.
Funding
This work was supported by scientific programs of the Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences (Moscow, Russia) and the Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences (Novosibirsk, Russia).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors of this work declare that they have no conflicts of interest.
Additional information
Translated by I. Melekestseva
Publisher’s Note.
Pleiades Publishing remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Soloviev, S.G., Kryazhev, S.G., Semenova, D.V. et al. New Data on the U–Pb (LA-ICP-MS) Isotopic Age of Zircon from Intrusive Rocks of the Kuru-Tegerek Skarn Au–Cu–Mo Deposit, Middle Tien Shan, Kyrgyzstan. Dokl. Earth Sc. (2024). https://doi.org/10.1134/S1028334X24601172
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1134/S1028334X24601172