GENESIS AND GOLD (COPPER) POTENTIAL IN DARESTAN-BAGHU MINING AREA (SOUTH OF DAMGHAN)

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RASTAD E.; RASHIDNEZHAD OMRAN N.A.; TAJEDDIN H.A.; BABAKHANI A.R.

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Journal: GEOSCIENCES Year:2000 | Volume:9 | Issue:35-36 Page(s): 60-79

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Title

GENESIS AND GOLD (COPPER) POTENTIAL IN DARESTAN-BAGHU MINING AREA (SOUTH OF DAMGHAN)

Author(s)

RASTAD E. | RASHIDNEZHAD OMRAN N.A. | TAJEDDIN H.A. | BABAKHANI A.R. | Issue Writer Certificate

Keywords

GOLDQ2

HYDROTHERMAL ALTERATIONQ3

SUBVOLCANIC INTRUSIVESQ4

RUID INCLUSIONSQ2

SOUTH OF DAMGHANQ4

IRANQ2

Abstract

Darestan- Baghu GOLD mining area is exposed at about 100 km SOUTH OF DAMGHAN. The area is a part of Torud- Chahshirin volcano-plutonic belt that crops out as a horst with a NE-SW trend in the northern limit Dasht-e-Kavir. The outcrops in the area are Middle- Eocene volcano- pyroclastics with andesite to dacite in composition, which are intruded by a number of intrusives including granite to granodiorite bodies. Mineralization in Darestan GOLD occurrence consists of a copper (GOLD)- bearing silicic vein with 400 meter length occurring within a N-S trending normal fault in andesitic to dacitic- andesitic massive breccia tuft associated with silicic, argillic and propylitic alterations. Mineralization in the vein includes quartz, chalcopyrite, pyrite, GOLD, specularite, malachite, and iron- hydroxides. GOLD minerlization in Baghu vein (at about 3 km NE of Darestan GOLD occurrence) is as a silicic vein with 700 meter length occurring within a granodiorite- granite subvolcanic with argillic alteration. Mineralization in Baghu vein consists of quartz, pyrite, chalcopyrite, GOLD, iron oxides and iron- hydroxides, malachite, chalcocite, covellite and tourmaline. Field observations indicate that considerable contents of GOLD in Darestan area mainly related to sulfide- bearing silicic veins are intruded within N-S normal faults that are generally associated with hydrothemal alteration of argillic, silicic and chloritic ( ± epidote) zones. Investigation on other mineralized zones of Darestan and Baghu areas suggests a clear genetic relationship between Darestan copper (GOLD) occurrence and GOLD-bearing silicicvein of Baghu. Field observations and laboratory studies show a close relationship between the copper (GOLD) mineralization and late- stage silicic solutions induced from SUBVOLCANIC INTRUSIVES with acidic to intermediate composition in Darestan and Baghu districts. Some of the most important lines of evidence are spatial relationship between ore-bearing silicic veins and the position of SUBVOLCANIC INTRUSIVES, In addition high correlation between Au and Cu and homogenization temperatures of primary fluid inclusions improve genetic relationship.

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APA: Copy

RASTAD, E., RASHIDNEZHAD OMRAN, N.A., TAJEDDIN, H.A., & BABAKHANI, A.R.. (2000). GENESIS AND GOLD (COPPER) POTENTIAL IN DARESTAN-BAGHU MINING AREA (SOUTH OF DAMGHAN). GEOSCIENCES, 9(35-36), 60-79. SID. https://sid.ir/paper/32471/en

Vancouver: Copy

RASTAD E., RASHIDNEZHAD OMRAN N.A., TAJEDDIN H.A., BABAKHANI A.R.. GENESIS AND GOLD (COPPER) POTENTIAL IN DARESTAN-BAGHU MINING AREA (SOUTH OF DAMGHAN). GEOSCIENCES[Internet]. 2000;9(35-36):60-79. Available from: https://sid.ir/paper/32471/en

IEEE: Copy

E. RASTAD, N.A. RASHIDNEZHAD OMRAN, H.A. TAJEDDIN, and A.R. BABAKHANI, “GENESIS AND GOLD (COPPER) POTENTIAL IN DARESTAN-BAGHU MINING AREA (SOUTH OF DAMGHAN),” GEOSCIENCES, vol. 9, no. 35-36, pp. 60–79, 2000, [Online]. Available: https://sid.ir/paper/32471/en

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