THE MADAN BOZORG, VOLCANIC-HOSTED COPPER DEPOSIT, EAST SHAHROUD; AN EXAMPLE OF MANTO TYPE COPPER DEPOSITS IN IRAN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SALEHI L.; RASA I.; ALIREZAEI S.; KAZEMI MEHRNIA A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: GEOSCIENCES Year:2016 | Volume:25 | Issue:98 Page(s): 93-104

Download Full-Text

Persian Verion

View:

3,385

Download:

Cites:

Information Journal Paper

Title

THE MADAN BOZORG, VOLCANIC-HOSTED COPPER DEPOSIT, EAST SHAHROUD; AN EXAMPLE OF MANTO TYPE COPPER DEPOSITS IN IRAN

Author(s)

SALEHI L. | RASA I. | ALIREZAEI S. | KAZEMI MEHRNIA A. | Issue Writer Certificate

Keywords

MANTO TYPE COPPERQ1

MADAN BOZORGQ2

ABBAS ABADQ1

CHALCOCITEQ2

CENOZOIC VOLCANICQ2

FLUID INCLUSIONQ1

Abstract

The MADAN BOZORG deposit is located in the ABBAS ABAD mining district, about 130 km east of Shahroud. The area is covered by a NE-SW trending belt of intermediate-mafic lava flows and pyroclastic materials, as well as interlayered sedimentary rocks. Eight copper deposits have been identified in the district. Based on the chemistry, the volcanic rocks can be classified as trachyandesite, trachyandesitic basalt and trachybasalt; the rocks display high potassium calc-alkaline to shoshonitic affinities and bear geochemical attributes characteristic of continental arc settings. The MADAN BOZORG deposit is hosted in trachyandesite with porphyritic to mega porphyritic, glomeroporphyritic and amygdaloidal textures. Based on field observations, microscopic studies, Raman spectroscopy and XRD results, two types of alteration, regional and local, can be distinguished. The regional or background alteration, is comparable to a propylitic assemblage and occurs in mineralized and non- mineralized volcanic units. Local alteration associated with copper mineralization includes calcic, silicic, sericitic, chloritic, zeolitic and hematitic. Copper mineralization occurs as disseminated, vein- veinlet, replacement, stockworks and irregular open space fillings. Based on microscopic studies and EPMA data, CHALCOCITE group minerals (chalcocite, djurleite, anilite, digenite and covellite) are the main ore minerals and are accompanied by subordinate bornite, pyrite and hematite. Secondary minerals include covellite, malachite, azurite, chrysocolla and goethite. Nonmetallic minerals are quartz, chlorite, epidote, calcite, and chalcedony. Based on FLUID INCLUSION studies on coexisting quartz, homogenization temperatures are between 90 to 268°C with an average of 176° C. Salinities vary between 3.38 to 21.96 (average, 13.21) wt% NaCl eq. Fluid density varies between 0.8 to 1.1 g.cm-3. The depth of FLUID INCLUSION trapping is estimated to be less than 200 meters, and ore formation occurred at pressures less than 50 bars. The host rocks, ore mineralogy, ore textures and structures, and FLUID INCLUSIONs characteristics in MADAN BOZORG deposit are similar to those reported from MANTO TYPE COPPER deposits in Mesozoic-Cenozoic volcanic belts in South America and elsewhere.

Cites

No record.

References

No record.

Cite

APA: Copy

SALEHI, L., RASA, I., ALIREZAEI, S., & KAZEMI MEHRNIA, A.. (2016). THE MADAN BOZORG, VOLCANIC-HOSTED COPPER DEPOSIT, EAST SHAHROUD; AN EXAMPLE OF MANTO TYPE COPPER DEPOSITS IN IRAN. GEOSCIENCES, 25(98), 93-104. SID. https://sid.ir/paper/32240/en

Vancouver: Copy

SALEHI L., RASA I., ALIREZAEI S., KAZEMI MEHRNIA A.. THE MADAN BOZORG, VOLCANIC-HOSTED COPPER DEPOSIT, EAST SHAHROUD; AN EXAMPLE OF MANTO TYPE COPPER DEPOSITS IN IRAN. GEOSCIENCES[Internet]. 2016;25(98):93-104. Available from: https://sid.ir/paper/32240/en

IEEE: Copy

L. SALEHI, I. RASA, S. ALIREZAEI, and A. KAZEMI MEHRNIA, “THE MADAN BOZORG, VOLCANIC-HOSTED COPPER DEPOSIT, EAST SHAHROUD; AN EXAMPLE OF MANTO TYPE COPPER DEPOSITS IN IRAN,” GEOSCIENCES, vol. 25, no. 98, pp. 93–104, 2016, [Online]. Available: https://sid.ir/paper/32240/en

Related Journal Papers