Investigation of mineralization in Gazkhizan copper deposit (west of Semnan), based on economic and tectonic geological evidence

Authors

1 Islamic Azad University - Science and Research Branch

2 Professor, Azad University, North Tehran Branch

3 Department of Earth Sciences, Science and Research Branch, Islamic Azad University

4 Department of Geology, Islamic Azad University, Science and Research Branch, Tehran, Iran.

5 Department of Geology, Chalus Branch, Islamic Azad University

Abstract

The study area is part of the Troud geological quadrilateral, which is located in the central Iran zone from the perspective of structural geology of Iran. The two main faults of Troud in the south and Anjilo in the north, with their vertical movements and the extension of their left slip, play an important role in structural events and the movement of mineral fluids and mineral deposits. The study area is composed mostly of volcanic rocks and less volcanic-sedimentary rocks with a combination of intermediate to basic and Upper Middle Eocene.
Gazkhizan region has a mineralization zone 350 meters long and 50-70 meters wide with an almost "east-west" trend. The fracture geometry in this region was determined using Win Tensor and Georeient software.
There is also a northeast-southwest shear zone with copper veins. Fracture analysis in this area shows that most vein fractures are consistent with T-type fractures due to the function of a left lateral shear area. These vein fractures are located north, northeast-south, southwest.

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References

Alavi, M., Hushmandzadeh, A., Etminan, H., Haghipour, A., 1976. Geological map of Torud. Scale 1:250000, Geological Survey of Iran, Tehran.
Angelier, J., 1984. Tectonic analysis of fault slips data sets. Journal of Geophysical Research 89, 5835-5848. https://doi.org/10.1029/JB089iB07p05835
Angelier, J., 1990. Inversion of field data in fault tectonics to obtain the regional stress III. A newrapid direct inversion method by analytical means. Geophysical Journal International.103, 363-376. https://doi.org/10.1111/j.1365-246X.1990.tb01777.x.
Angelier, J., 1979b. Determination of the mean principal directions of stresses for a given fault population. Tectonophysics 56, 17-26.
Anderson, E.M., 1942. The Dynamics of Faulting and Dyke Formation with Applications to Britain, 1st Edition, Oliver and Boyd, Edinburgh. P. 206.
Angelier, J., 1979b. Tectonophysics, Determination of the mean principal directions of stresses for a given fault population. Tectonophysics 56, T17-T26. https://doi.org/10.1016/0040-1951(79)90081-7.
https://doi.org/10.1016/0040-1951(79)90081-7.
Amer, R., Kusky, T., Ghulam, A., 2010. New methods of processing aster data for lithological mapping: examples from Fawakhir, Central eastern desert of Egypt.  Journal of African Earth Sciences 56, 75-82. https://doi.org/10.1016/j.jafrearsci.2009.06.004.
Behyari, M., Kanabi, A., 2019. Constraining of strain ellipsoid shape from sectional data in the Au bearing shear zone west of Iran. Acta Geodynamica et Geromaterialia 16, 131-143. 10.13168/AGG.2019.0010.
Decker, K., Eschede, M., Ring, U., 1993. Fault slip analysis along the northern margin of the eastern Alps (Molasse, Helvetic maps, North and South penninic flysh and northern calcareous Alps). Tectonophysics 223, 291-312 223. https://doi.org/10.1016/0040-1951(93)90142-7.
Ellie, L., Spell, T.L., Wallace, Alan R., Goldstrand, P., Arehart, G.B., 2003. Volcano- tectonic setting of the midas epithermal vein deposit. Elko County Nevada. Cordilleran Section - 99th Annual (April 1–3, 2003), Paper No. 23-5
 
Advanced Applied Geology
Volume 13, Issue 3
October 2023
Pages 892-909

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