Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft)

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RASOULI J.; GORBANI M.

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Journal: GEOSCIENCES Year:2019 | Volume:28 | Issue:110 Page(s): 273-286

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Title

Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft)

Author(s)

RASOULI J. | GORBANI M. | Issue Writer Certificate

Keywords

AlterationQ2

MineralizationQ2

PetrogenesisQ1

Zircon U-Pb geochronologyQ1

Delfard-JiroftQ1

Abstract

Delfard area is located in the northwestern of Jiroft, formed the northwestern part of the Jabā lbā rez granitoid complex, in Uromiyeh-Dokhtar magmatic belt. The Jabā lbā rez granitoid complex has a wide range of rocks inclusive from diorite to alkali granite, which were formed by magmatic differentiation process over the several course of consecutive pulses. Last pulses are masses of porphyry that showed evidence of copper Mineralization. One of these intrusive bodies is Delfard. Copper Mineralization in Delfard area is more important than other parts of Jabā lbā rez. Consequently, in the area, three porphyry masses showing the evidence of porphyry copper Mineralization. Chalcopyrite, Pyrite, Malachite, Azurite and Magnetite are indicative minerals. Alteration zones in Delfard area are silicic, potassic, arjelic, phyllic, and propylitic that can be correlated with Lovell and Gilbert model. According to studies, Delfard has high potential for exploration and drilling. The average copper content in the ore is about 1800 ppm. Petrogenesis review of the mafic rocks in Delfard area shows that these rocks originated from a richer source than NMORB. In addition, the rocks of Delfard area are Flux melting pointer that happened in the subduction of oceanic crust under the adjacent crust. In other words, the sequence of calc-alkaline rocks of Delfard area attributed to compressional tectonic regime that intrusived and erupted along the Uromiyeh-Dokhtar zone with development and high volume in the form of magmatic horizons. Finally, Petrogenesis of studied granite series is similar to the calc-alkaline granitoids, which was originated from basaltic magma mantle metasomatised by fluids from the subducted slab. Based on Zircon U-Pb geochronology, the age of Delfard granitoid is 15. 90± 1. 3 Ma. One can imagine that, magmatic differentiation process was completed in a short time and intrusive body was sequentially penetrated and placed in the earth's crust in a short time.

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APA: Copy

RASOULI, J., & GORBANI, M.. (2019). Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft). GEOSCIENCES, 28(110 ), 273-286. SID. https://sid.ir/paper/32133/en

Vancouver: Copy

RASOULI J., GORBANI M.. Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft). GEOSCIENCES[Internet]. 2019;28(110 ):273-286. Available from: https://sid.ir/paper/32133/en

IEEE: Copy

J. RASOULI, and M. GORBANI, “Copper mineralization, Alteration, zircon U-Pb geochronology and petrogenesis Delfard rocks (North West Jiroft),” GEOSCIENCES, vol. 28, no. 110 , pp. 273–286, 2019, [Online]. Available: https://sid.ir/paper/32133/en

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