Petrography, mineral chemistry and thermobarometry of amphibolites from the Allahyarlu metamorphic complex-Ardebil, NW 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.

salimi Zohreh; MOAZEN MOHSEN; haji ali oghli Robab

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

Journal Paper

Paper Information

Journal: Iranian Journal of Crystallography and Mineralogy Year:2020 | Volume:28 | Issue:1 Page(s): 185-198

Download Full-Text

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

Persian Verion

View:

320

Download:

Cites:

Information Journal Paper

Title

Petrography, mineral chemistry and thermobarometry of amphibolites from the Allahyarlu metamorphic complex-Ardebil, NW Iran

Author(s)

salimi Zohreh | MOAZEN MOHSEN | haji ali oghli Robab | Issue Writer Certificate

Keywords

AmphiboliteQ1

mineral chemistryQ1

thermo-barometryQ2

AllahyarluQ1

NW-IranQ2

Abstract

The pre-Eocene Allahyarlu ophiolitic-metamorphic complex is exposd in the core of the Allahyarlu anticline in the northwest of Iran and northeast of Meshginshahr. This complex consists of a variety of schist, gneiss, Amphibolite and metadibase rocks with serpentinite and tectonic slices including gabbro, dunit, marble and diabase. Amphibolites can be divided into garnet-free Amphibolite and garnet Amphibolite. Hornblende and plagioclase are the main phases in the garnet-free Amphibolite. Titanite, calcite, rare biotite, epidote, Fe-oxides and zircon constitute the minor phases. In garnet Amphibolites, in addition to these minerals, garnet is also present. Porphyroblastic and nematoblastic are the common textures in these rocks. The study of mineral chemistry and determination of temperature and pressure conditions of Amphibolites are the subject of this study. Based on the results of microprobe analyses in garnet-free Amphibolites and garnet Amphibolites, the amphiboles are of magnesium hornblende and tschermakite types, plagioclase composition ranges between andesine and albite, and in garnet Amphibolites garnet has an almandine-rich nature. Based on the variations of Ti versus total Al (Alt), the studied amphiboles in the Amphibolites of the Allahyarlu metamorphic complex are medium pressure amphiboles. The results of thermometry and barometry calculations on these rocks, based on the chemistry of amphibole, garnet and plagioclase, were obtained. The P-T estimates indicate an average pressure of 8Kbar and temperature of 600C for the peak of metamorphism. This is in accordance with Barrovian metamorphic gradients, indicative of crustal thickening (in volcanic or island arcs) or a collisional tectonic setting.

Cites

No record.

References

No record.

Cite

APA: Copy

salimi, Zohreh, MOAZEN, MOHSEN, & haji ali oghli, Robab. (2020). Petrography, mineral chemistry and thermobarometry of amphibolites from the Allahyarlu metamorphic complex-Ardebil, NW Iran. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 28(1 ), 185-198. SID. https://sid.ir/paper/361655/en

Vancouver: Copy

salimi Zohreh, MOAZEN MOHSEN, haji ali oghli Robab. Petrography, mineral chemistry and thermobarometry of amphibolites from the Allahyarlu metamorphic complex-Ardebil, NW Iran. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2020;28(1 ):185-198. Available from: https://sid.ir/paper/361655/en

IEEE: Copy

Zohreh salimi, MOHSEN MOAZEN, and Robab haji ali oghli, “Petrography, mineral chemistry and thermobarometry of amphibolites from the Allahyarlu metamorphic complex-Ardebil, NW Iran,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 28, no. 1 , pp. 185–198, 2020, [Online]. Available: https://sid.ir/paper/361655/en

Related Journal Papers