PETROLOGY, GEOCHEMISTRY AND ALTERATION AT THE POLYMETALIC (CU- PB- ZN) VEIN AND VEINLET MINERALIZATION IN THE LUBIN- ZARDEH AREA, NORTH EAST ZANJAN

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HOSSEINZADEH M.R.; MAGHFOURI S.; MOAYYED M.; LOTFEHNIA M.; HAJALILOU B.

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Journal: GEOSCIENCES Year:2015 | Volume:24 | Issue:96 Page(s): 41-52

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Title

PETROLOGY, GEOCHEMISTRY AND ALTERATION AT THE POLYMETALIC (CU- PB- ZN) VEIN AND VEINLET MINERALIZATION IN THE LUBIN- ZARDEH AREA, NORTH EAST ZANJAN

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Keywords

LUBIN- ZARDEH AREAQ2

EPITHERMALQ2

VEIN- VEINLETQ2

POLYMETAL MINERALIZATIONQ2

HYDROTHERMAL ALTERATIONQ2

TAROM ZONEQ1

Abstract

The studied area is located in Tarom metallogenic zone (NW of Iran). This area illustrate widespread HYDROTHERMAL ALTERATION and disseminated and vein-veinlet type copper, lead and zinc mineralization. Injection of an Oligocene intrusive body into Eocene volcano clastic complex (Karaj Formation) along linear Faults caused intense HYDROTHERMAL ALTERATIONs such as phyllic, argillic, propylitic and silicification. The major minerals of the intrusive body are plagioclase, biotite, pyroxene, hornblende, alkali-feldspars, quartz with lesser amounts of apatite, zircon, opaque minerals, rutile and titanite. Based on microscopic and geochemical features, the intrusion consists of quartz- monzonite, tonalite, and quartz- monzodiorite, and has calk-alkaline to shoshonitic and meta-aluminous character. This pluton belongs to a volcanic arcs regime. The hydrothermal fluids associated with the intrusion led to the development of two vein/veinlet systems: 1) ore bearing quartz veins/veinlets and 2) barren carbonate veins/veinlets. The main mineralizations of area are oxide (illmenite), sulfide (pyrite, Chalcopyrite, galena, sphalerite), sulfate (barite) and the supergene minerals are oxides and hydroxide, (hematite, goetite), sulfide (covelite), sulfate (anglesite) and carbonate (malachite and azurite). The most important characteristics of mineralization at the LUBIN- ZARDEH AREA such as tectonic setting, host rocks, mineralogy, metal contents, as well as wall rock alterations, and to compare these characteristics with the basic features of EPITHERMAL deposits, the polymetal VEIN- VEINLET mineralization in Lubin- Zardeh placed in the EPITHERMAL category.

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APA: Copy

HOSSEINZADEH, M.R., MAGHFOURI, S., MOAYYED, M., LOTFEHNIA, M., & HAJALILOU, B.. (2015). PETROLOGY, GEOCHEMISTRY AND ALTERATION AT THE POLYMETALIC (CU- PB- ZN) VEIN AND VEINLET MINERALIZATION IN THE LUBIN- ZARDEH AREA, NORTH EAST ZANJAN. GEOSCIENCES, 24(96), 41-52. SID. https://sid.ir/paper/32474/en

Vancouver: Copy

HOSSEINZADEH M.R., MAGHFOURI S., MOAYYED M., LOTFEHNIA M., HAJALILOU B.. PETROLOGY, GEOCHEMISTRY AND ALTERATION AT THE POLYMETALIC (CU- PB- ZN) VEIN AND VEINLET MINERALIZATION IN THE LUBIN- ZARDEH AREA, NORTH EAST ZANJAN. GEOSCIENCES[Internet]. 2015;24(96):41-52. Available from: https://sid.ir/paper/32474/en

IEEE: Copy

M.R. HOSSEINZADEH, S. MAGHFOURI, M. MOAYYED, M. LOTFEHNIA, and B. HAJALILOU, “PETROLOGY, GEOCHEMISTRY AND ALTERATION AT THE POLYMETALIC (CU- PB- ZN) VEIN AND VEINLET MINERALIZATION IN THE LUBIN- ZARDEH AREA, NORTH EAST ZANJAN,” GEOSCIENCES, vol. 24, no. 96, pp. 41–52, 2015, [Online]. Available: https://sid.ir/paper/32474/en

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