Structural conditions for the localization of gold mineralization within the Tutkhun ore field (the central part of the Lesser Caucasus)
Baba-zadeh V.M., Abdullayeva Sh.F., Novruzova S.R.
Baku State University, Azerbaijan 33, acad. Zahid Khalilov str., Baku, AZ 1148: vasifbabazadeh1938@bsu.edu.az; shakhla.a@gmail.com; samiranovruzova001@gmail.com
DOI: 10.33677/ggianas20240100112
Summary
The gold-bearing areas of the ore field, the similarities and differences of the structural conditions of their formation, the elemental and mineral composition of the ores, various metasomatictes-propylites, beresites and, especially, secondary quartzites were studied.
Gold ore mineralization can be considered in terms of some regional features of the geological development of the Lesser Caucasus. The Upper Eocene intrusive and subvolcanic rocks represent a single complex that forms the Gazikhanli-Zargulu massif in the region, approaching the subvolcanic facies of magmatic rocks. The field of development of gold ore formations mainly covers outcrops of granitoid rocks of the massif and its exocontact aureoles, into which abundant dikes, the latest members of the Upper Eocene complex of intrusive formations, penetrate. The particularly close positional connection of gold ore mineralization with vein rocks cutting through all the massive and porphyry rocks of the massif indicates the control of this mineralization by the latest structural elements of the area, which occurred in the final period of the evolution of the Gazikhanli-Zargulu complex.
As can be seen, gold-bearing zones are paragenetically associated with dikes that complete the development of granitoid intrusive complexes. Both of them, which are closest in time to the development of magmatic and post-magmatic processes, use uniform structures of an earlier period of development in their localization.
Keywords: the central part of the Lesser Caucasus, field, area, structure, epithermal, gold, silver, secondary quartzites, genetic features, mineralization, gold-quartz ore zones
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DOI: 10.33677/ggianas20240100112