Thermochronological and geochemical footprints of post-orogenic fluid alteration recorded in apatite: Implications for mineralisation in the Uzbek Tian Shan

S. Glorie, G. Jepson, D. Konopelko, R. Mirkamalov, F. Meeuws, S. Gilbert, J. Gillespie, A. S. Collins, W. Xiao, S. Dewaele, J. De Grave

Результат исследования: Научные публикации в периодических изданияхстатья

12 Цитирования (Scopus)

Аннотация

The Uzbek Tian Shan is a prominent metal-rich belt, hosting world-class orogenic Au deposits such as Muruntau. However, its post-collisional history in relation to fluid alteration and mineralisation remains elusive. We present apatite U–Pb dates and rare earth element geochemistry for 44 granitoids, revealing a prolonged history of low-grade metamorphism and associated fluid alteration between ~285 and ~240 Ma. A resulting apatite U–Pb age interpolation map reveals two young anomalies that are interpreted as post-orogenic fluid circulation cells. In addition, the extent of Meso-Cenozoic denudation is presented using apatite fission track (FT) age data. In areas of good data coverage, the combined Apatite U–Pb and FT anomalies reveal a correlation with the locations of orogenic Au mineralisation. Although more data is required to further evaluate such correlation, our study illustrates that integrated multi-method apatite thermochronology and geochemistry may have the potential to become a novel viable tool for mineral exploration.

Язык оригиналаанглийский
Страницы (с-по)1-15
Число страниц15
ЖурналGondwana Research
Том71
DOI
СостояниеОпубликовано - 1 июл 2019

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  • Цитировать

    Glorie, S., Jepson, G., Konopelko, D., Mirkamalov, R., Meeuws, F., Gilbert, S., Gillespie, J., Collins, A. S., Xiao, W., Dewaele, S., & De Grave, J. (2019). Thermochronological and geochemical footprints of post-orogenic fluid alteration recorded in apatite: Implications for mineralisation in the Uzbek Tian Shan. Gondwana Research, 71, 1-15. https://doi.org/10.1016/j.gr.2019.01.011